diff options
Diffstat (limited to 'test/Analysis/DependenceAnalysis')
| -rw-r--r-- | test/Analysis/DependenceAnalysis/Banerjee.ll | 595 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/Coupled.ll | 509 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/ExactRDIV.ll | 508 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/ExactSIV.ll | 428 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/GCD.ll | 597 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/Preliminary.ll | 469 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/Propagating.ll | 467 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/Separability.ll | 267 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/StrongSIV.ll | 342 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/SymbolicRDIV.ll | 312 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/SymbolicSIV.ll | 330 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll | 220 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll | 212 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll | 212 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/ZIV.ll | 53 | ||||
| -rw-r--r-- | test/Analysis/DependenceAnalysis/lit.local.cfg | 1 |
16 files changed, 5522 insertions, 0 deletions
diff --git a/test/Analysis/DependenceAnalysis/Banerjee.ll b/test/Analysis/DependenceAnalysis/Banerjee.ll new file mode 100644 index 0000000..8865ee9 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/Banerjee.ll @@ -0,0 +1,595 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'Banerjee.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 1; i <= 10; i++) +;; for (long int j = 1; j <= 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j - 1]; + +define void @banerjee0(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 1, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 1, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %sub = add nsw i64 %add5, -1 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub + %0 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - flow [<= <>]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 11 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 11 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} + + +;; for (long int i = 1; i <= n; i++) +;; for (long int j = 1; j <= m; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j - 1]; + +define void @banerjee1(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + %cmp4 = icmp sgt i64 %n, 0 + br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end9 + +for.cond1.preheader.preheader: ; preds = %entry + %0 = add i64 %n, 1 + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc7 + %B.addr.06 = phi i64* [ %B.addr.1.lcssa, %for.inc7 ], [ %B, %for.cond1.preheader.preheader ] + %i.05 = phi i64 [ %inc8, %for.inc7 ], [ 1, %for.cond1.preheader.preheader ] + %1 = add i64 %m, 1 + %cmp21 = icmp sgt i64 %m, 0 + br i1 %cmp21, label %for.body3.preheader, label %for.inc7 + +for.body3.preheader: ; preds = %for.cond1.preheader + br label %for.body3 + +for.body3: ; preds = %for.body3.preheader, %for.body3 + %j.03 = phi i64 [ %inc, %for.body3 ], [ 1, %for.body3.preheader ] + %B.addr.12 = phi i64* [ %incdec.ptr, %for.body3 ], [ %B.addr.06, %for.body3.preheader ] + %mul = mul nsw i64 %i.05, 10 + %add = add nsw i64 %mul, %j.03 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.05, 10 + %add5 = add nsw i64 %mul4, %j.03 + %sub = add nsw i64 %add5, -1 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub + %2 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - flow [* <>]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.12, i64 1 + store i64 %2, i64* %B.addr.12, align 8 + %inc = add nsw i64 %j.03, 1 + %exitcond = icmp eq i64 %inc, %1 + br i1 %exitcond, label %for.inc7.loopexit, label %for.body3 + +for.inc7.loopexit: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.06, i64 %m + br label %for.inc7 + +for.inc7: ; preds = %for.inc7.loopexit, %for.cond1.preheader + %B.addr.1.lcssa = phi i64* [ %B.addr.06, %for.cond1.preheader ], [ %scevgep, %for.inc7.loopexit ] + %inc8 = add nsw i64 %i.05, 1 + %exitcond7 = icmp eq i64 %inc8, %0 + br i1 %exitcond7, label %for.end9.loopexit, label %for.cond1.preheader + +for.end9.loopexit: ; preds = %for.inc7 + br label %for.end9 + +for.end9: ; preds = %for.end9.loopexit, %entry + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = 0; +;; *B++ = A[10*i + j + 100]; + +define void @banerjee2(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %add6 = add nsw i64 %add5, 100 + %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6 + %0 = load i64* %arrayidx7, align 8 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j + 99]; + +define void @banerjee3(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %add6 = add nsw i64 %add5, 99 + %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6 + %0 = load i64* %arrayidx7, align 8 +; CHECK: da analyze - flow [> >]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j - 100]; + +define void @banerjee4(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %sub = add nsw i64 %add5, -100 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub + %0 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j - 99]; + +define void @banerjee5(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %sub = add nsw i64 %add5, -99 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub + %0 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - flow [< <]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j + 9]; + +define void @banerjee6(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %add6 = add nsw i64 %add5, 9 + %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6 + %0 = load i64* %arrayidx7, align 8 +; CHECK: da analyze - flow [=> <>]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j + 10]; + +define void @banerjee7(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %add6 = add nsw i64 %add5, 10 + %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6 + %0 = load i64* %arrayidx7, align 8 +; CHECK: da analyze - flow [> <=]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 10; i++) +;; for (long int j = 0; j < 10; j++) { +;; A[10*i + j] = ... +;; ... = A[10*i + j + 11]; + +define void @banerjee8(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 10 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 10 + %add5 = add nsw i64 %mul4, %j.02 + %add6 = add nsw i64 %add5, 11 + %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6 + %0 = load i64* %arrayidx7, align 8 +; CHECK: da analyze - flow [> <>]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 10 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 10 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 10 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 20; i++) +;; for (long int j = 0; j < 20; j++) { +;; A[30*i + 500*j] = ... +;; ... = A[i - 500*j + 11]; + +define void @banerjee9(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 30 + %mul4 = mul nsw i64 %j.02, 500 + %add = add nsw i64 %mul, %mul4 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %0 = mul i64 %j.02, -500 + %sub = add i64 %i.03, %0 + %add6 = add nsw i64 %sub, 11 + %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6 + %1 = load i64* %arrayidx7, align 8 +; CHECK: da analyze - flow [<= =|<]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %1, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 20 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 20 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 20 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 20; i++) +;; for (long int j = 0; j < 20; j++) { +;; A[i + 500*j] = ... +;; ... = A[i - 500*j + 11]; + +define void @banerjee10(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %j.02, 500 + %add = add nsw i64 %i.03, %mul + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %0 = mul i64 %j.02, -500 + %sub = add i64 %i.03, %0 + %add5 = add nsw i64 %sub, 11 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %add5 + %1 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - flow [<> =]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %1, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 20 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 20 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 20 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} + + +;; for (long int i = 0; i < 20; i++) +;; for (long int j = 0; j < 20; j++) { +;; A[300*i + j] = ... +;; ... = A[250*i - j + 11]; + +define void @banerjee11(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 300 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 250 + %sub = sub nsw i64 %mul4, %j.02 + %add5 = add nsw i64 %sub, 11 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %add5 + %0 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - flow [<= <>]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 20 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 20 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 20 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} + + +;; for (long int i = 0; i < 20; i++) +;; for (long int j = 0; j < 20; j++) { +;; A[100*i + j] = ... +;; ... = A[100*i - j + 11]; + +define void @banerjee12(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i64* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %mul = mul nsw i64 %i.03, 100 + %add = add nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i64* %A, i64 %add + store i64 0, i64* %arrayidx, align 8 + %mul4 = mul nsw i64 %i.03, 100 + %sub = sub nsw i64 %mul4, %j.02 + %add5 = add nsw i64 %sub, 11 + %arrayidx6 = getelementptr inbounds i64* %A, i64 %add5 + %0 = load i64* %arrayidx6, align 8 +; CHECK: da analyze - flow [= <>]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1 + store i64 %0, i64* %B.addr.11, align 8 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 20 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i64* %B.addr.04, i64 20 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 20 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} diff --git a/test/Analysis/DependenceAnalysis/Coupled.ll b/test/Analysis/DependenceAnalysis/Coupled.ll new file mode 100644 index 0000000..60163fe --- /dev/null +++ b/test/Analysis/DependenceAnalysis/Coupled.ll @@ -0,0 +1,509 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'Coupled.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < 50; i++) +;; A[i][i] = ... +;; ... = A[i + 10][i + 9] + +define void @couple0([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx1 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + store i32 %conv, i32* %arrayidx1, align 4 + %add = add nsw i64 %i.02, 9 + %add2 = add nsw i64 %i.02, 10 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %add2, i64 %add + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[i][i] = ... +;; ... = A[i + 9][i + 9] + +define void @couple1([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx1 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + store i32 %conv, i32* %arrayidx1, align 4 + %add = add nsw i64 %i.02, 9 + %add2 = add nsw i64 %i.02, 9 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %add2, i64 %add + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - consistent flow [-9]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[3*i - 6][3*i - 6] = ... +;; ... = A[i][i] + +define void @couple2([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul nsw i64 %i.02, 3 + %sub = add nsw i64 %mul, -6 + %mul1 = mul nsw i64 %i.02, 3 + %sub2 = add nsw i64 %mul1, -6 + %arrayidx3 = getelementptr inbounds [100 x i32]* %A, i64 %sub2, i64 %sub + store i32 %conv, i32* %arrayidx3, align 4 + %arrayidx5 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[3*i - 6][3*i - 5] = ... +;; ... = A[i][i] + +define void @couple3([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul nsw i64 %i.02, 3 + %sub = add nsw i64 %mul, -5 + %mul1 = mul nsw i64 %i.02, 3 + %sub2 = add nsw i64 %mul1, -6 + %arrayidx3 = getelementptr inbounds [100 x i32]* %A, i64 %sub2, i64 %sub + store i32 %conv, i32* %arrayidx3, align 4 + %arrayidx5 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[3*i - 6][3*i - n] = ... +;; ... = A[i][i] + +define void @couple4([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul nsw i64 %i.02, 3 + %conv1 = sext i32 %n to i64 + %sub = sub nsw i64 %mul, %conv1 + %mul2 = mul nsw i64 %i.02, 3 + %sub3 = add nsw i64 %mul2, -6 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %sub3, i64 %sub + store i32 %conv, i32* %arrayidx4, align 4 + %arrayidx6 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx6, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[3*i - n + 1][3*i - n] = ... +;; ... = A[i][i] + +define void @couple5([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul nsw i64 %i.02, 3 + %conv1 = sext i32 %n to i64 + %sub = sub nsw i64 %mul, %conv1 + %mul2 = mul nsw i64 %i.02, 3 + %conv3 = sext i32 %n to i64 + %sub4 = sub nsw i64 %mul2, %conv3 + %add = add nsw i64 %sub4, 1 + %arrayidx5 = getelementptr inbounds [100 x i32]* %A, i64 %add, i64 %sub + store i32 %conv, i32* %arrayidx5, align 4 + %arrayidx7 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[i][3*i - 6] = ... +;; ... = A[i][i] + +define void @couple6([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul nsw i64 %i.02, 3 + %sub = add nsw i64 %mul, -6 + %arrayidx1 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %sub + store i32 %conv, i32* %arrayidx1, align 4 + %arrayidx3 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - flow [=|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; A[i][3*i - 5] = ... +;; ... = A[i][i] + +define void @couple7([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul nsw i64 %i.02, 3 + %sub = add nsw i64 %mul, -5 + %arrayidx1 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %sub + store i32 %conv, i32* %arrayidx1, align 4 + %arrayidx3 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 50 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i <= 15; i++) +;; A[3*i - 18][3 - i] = ... +;; ... = A[i][i] + +define void @couple8([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 3, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx2 = getelementptr inbounds [100 x i32]* %A, i64 %sub1, i64 %sub + store i32 %conv, i32* %arrayidx2, align 4 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 16 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i <= 15; i++) +;; A[3*i - 18][2 - i] = ... +;; ... = A[i][i] + +define void @couple9([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 2, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx2 = getelementptr inbounds [100 x i32]* %A, i64 %sub1, i64 %sub + store i32 %conv, i32* %arrayidx2, align 4 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 16 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i <= 15; i++) +;; A[3*i - 18][6 - i] = ... +;; ... = A[i][i] + +define void @couple10([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 6, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx2 = getelementptr inbounds [100 x i32]* %A, i64 %sub1, i64 %sub + store i32 %conv, i32* %arrayidx2, align 4 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - flow [>] splitable! +; CHECK: da analyze - split level = 1, iteration = 3! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 16 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i <= 15; i++) +;; A[3*i - 18][18 - i] = ... +;; ... = A[i][i] + +define void @couple11([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 18, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx2 = getelementptr inbounds [100 x i32]* %A, i64 %sub1, i64 %sub + store i32 %conv, i32* %arrayidx2, align 4 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - flow [=|<] splitable! +; CHECK: da analyze - split level = 1, iteration = 9! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 16 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i <= 12; i++) +;; A[3*i - 18][22 - i] = ... +;; ... = A[i][i] + +define void @couple12([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 22, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx2 = getelementptr inbounds [100 x i32]* %A, i64 %sub1, i64 %sub + store i32 %conv, i32* %arrayidx2, align 4 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - flow [<] splitable! +; CHECK: da analyze - split level = 1, iteration = 11! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 13 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 12; i++) +;; A[3*i - 18][22 - i] = ... +;; ... = A[i][i] + +define void @couple13([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 22, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx2 = getelementptr inbounds [100 x i32]* %A, i64 %sub1, i64 %sub + store i32 %conv, i32* %arrayidx2, align 4 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 12 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; A[3*i - 18][18 - i][i] = ... +;; ... = A[i][i][i] + +define void @couple14([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 18, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx3 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %sub1, i64 %sub, i64 %i.02 + store i32 %conv, i32* %arrayidx3, align 4 + %arrayidx6 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.02, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx6, align 4 +; CHECK: da analyze - flow [=|<] splitable! +; CHECK: da analyze - split level = 1, iteration = 9! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 100 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; A[3*i - 18][22 - i][i] = ... +;; ... = A[i][i][i] + +define void @couple15([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %sub = sub nsw i64 22, %i.02 + %mul = mul nsw i64 %i.02, 3 + %sub1 = add nsw i64 %mul, -18 + %arrayidx3 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %sub1, i64 %sub, i64 %i.02 + store i32 %conv, i32* %arrayidx3, align 4 + %arrayidx6 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.02, i64 %i.02, i64 %i.02 + %0 = load i32* %arrayidx6, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add nsw i64 %i.02, 1 + %cmp = icmp slt i64 %inc, 100 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} diff --git a/test/Analysis/DependenceAnalysis/ExactRDIV.ll b/test/Analysis/DependenceAnalysis/ExactRDIV.ll new file mode 100644 index 0000000..aa5d254 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/ExactRDIV.ll @@ -0,0 +1,508 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'ExactRDIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < 10; i++) +;; A[4*i + 10] = ... +;; for (long int j = 0; j < 10; j++) +;; ... = A[2*j + 1]; + +define void @rdiv0(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 2 + %add = add nsw i64 %mul, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 10 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %mul5 = shl nsw i64 %j.02, 1 + %add64 = or i64 %mul5, 1 + %arrayidx7 = getelementptr inbounds i32* %A, i64 %add64 + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc9 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc9, 10 + br i1 %cmp2, label %for.body4, label %for.end10 + +for.end10: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; A[11*i - 45] = ... +;; for (long int j = 0; j < 10; j++) +;; ... = A[j]; + +define void @rdiv1(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = add nsw i64 %mul, -45 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 5 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 10 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i <= 5; i++) +;; A[11*i - 45] = ... +;; for (long int j = 0; j < 10; j++) +;; ... = A[j]; + +define void @rdiv2(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = add nsw i64 %mul, -45 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 6 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 10 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; A[11*i - 45] = ... +;; for (long int j = 0; j <= 10; j++) +;; ... = A[j]; + +define void @rdiv3(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = add nsw i64 %mul, -45 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 5 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 11 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i <= 5; i++) +;; A[11*i - 45] = ... +;; for (long int j = 0; j <= 10; j++) +;; ... = A[j]; + +define void @rdiv4(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = add nsw i64 %mul, -45 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 6 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - flow! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 11 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; A[-11*i + 45] = ... +;; for (long int j = 0; j < 10; j++) +;; ... = A[-j]; + +define void @rdiv5(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -11 + %add = add nsw i64 %mul, 45 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 5 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %sub = sub nsw i64 0, %j.02 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 10 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i <= 5; i++) +;; A[-11*i + 45] = ... +;; for (long int j = 0; j < 10; j++) +;; ... = A[-j]; + +define void @rdiv6(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -11 + %add = add nsw i64 %mul, 45 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 6 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %sub = sub nsw i64 0, %j.02 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 10 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; A[-11*i + 45] = ... +;; for (long int j = 0; j <= 10; j++) +;; ... = A[-j]; + +define void @rdiv7(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -11 + %add = add nsw i64 %mul, 45 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 5 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %sub = sub nsw i64 0, %j.02 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 11 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i <= 5; i++) +;; A[-11*i + 45] = ... +;; for (long int j = 0; j <= 10; j++) +;; ... = A[-j]; + +define void @rdiv8(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -11 + %add = add nsw i64 %mul, 45 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, 6 + br i1 %cmp, label %for.body, label %for.body4 + +for.body4: ; preds = %for.body4, %for.body + %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ] + %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ] + %sub = sub nsw i64 0, %j.02 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - flow! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc7 = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc7, 11 + br i1 %cmp2, label %for.body4, label %for.end8 + +for.end8: ; preds = %for.body4 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; for (long int j = 0; j < 10; j++) +;; A[11*i - j] = ... +;; ... = A[45]; + +define void @rdiv9(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc5, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = sub nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx4 = getelementptr inbounds i32* %A, i64 45 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 10 + br i1 %cmp2, label %for.body3, label %for.inc5 + +for.inc5: ; preds = %for.body3 + %inc6 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc6, 5 + br i1 %cmp, label %for.cond1.preheader, label %for.end7 + +for.end7: ; preds = %for.inc5 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; for (long int j = 0; j <= 10; j++) +;; A[11*i - j] = ... +;; ... = A[45]; + +define void @rdiv10(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc5, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = sub nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx4 = getelementptr inbounds i32* %A, i64 45 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 10 + br i1 %cmp2, label %for.body3, label %for.inc5 + +for.inc5: ; preds = %for.body3 + %inc6 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc6, 6 + br i1 %cmp, label %for.cond1.preheader, label %for.end7 + +for.end7: ; preds = %for.inc5 + ret void +} + + +;; for (long int i = 0; i <= 5; i++) +;; for (long int j = 0; j <= 10; j++) +;; A[11*i - j] = ... +;; ... = A[45]; + +define void @rdiv11(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc5, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = sub nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx4 = getelementptr inbounds i32* %A, i64 45 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 11 + br i1 %cmp2, label %for.body3, label %for.inc5 + +for.inc5: ; preds = %for.body3 + %inc6 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc6, 5 + br i1 %cmp, label %for.cond1.preheader, label %for.end7 + +for.end7: ; preds = %for.inc5 + ret void +} + + +;; for (long int i = 0; i < 5; i++) +;; for (long int j = 0; j < 10; j++) +;; A[11*i - j] = ... +;; ... = A[45]; + +define void @rdiv12(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc5, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 11 + %sub = sub nsw i64 %mul, %j.02 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx4 = getelementptr inbounds i32* %A, i64 45 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - flow [* *|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 11 + br i1 %cmp2, label %for.body3, label %for.inc5 + +for.inc5: ; preds = %for.body3 + %inc6 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc6, 6 + br i1 %cmp, label %for.cond1.preheader, label %for.end7 + +for.end7: ; preds = %for.inc5 + ret void +} diff --git a/test/Analysis/DependenceAnalysis/ExactSIV.ll b/test/Analysis/DependenceAnalysis/ExactSIV.ll new file mode 100644 index 0000000..71e0502 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/ExactSIV.ll @@ -0,0 +1,428 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'ExactSIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long unsigned i = 0; i < 10; i++) { +;; A[i + 10] = ... +;; ... = A[2*i + 1]; + +define void @exact0(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %add = add i64 %i.02, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %i.02, 1 + %add13 = or i64 %mul, 1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %add13 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [<=|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 10 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 10; i++) { +;; A[4*i + 10] = ... +;; ... = A[2*i + 1]; + +define void @exact1(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 2 + %add = add i64 %mul, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul1 = shl i64 %i.02, 1 + %add23 = or i64 %mul1, 1 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %add23 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 10 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 10; i++) { +;; A[6*i] = ... +;; ... = A[i + 60]; + +define void @exact2(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %add = add i64 %i.02, 60 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 10 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i <= 10; i++) { +;; A[6*i] = ... +;; ... = A[i + 60]; + +define void @exact3(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %add = add i64 %i.02, 60 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [>]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 11 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 12; i++) { +;; A[6*i] = ... +;; ... = A[i + 60]; + +define void @exact4(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %add = add i64 %i.02, 60 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [>]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 12 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i <= 12; i++) { +;; A[6*i] = ... +;; ... = A[i + 60]; + +define void @exact5(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %add = add i64 %i.02, 60 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [=>|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 13 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 18; i++) { +;; A[6*i] = ... +;; ... = A[i + 60]; + +define void @exact6(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %add = add i64 %i.02, 60 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [=>|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 18 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i <= 18; i++) { +;; A[6*i] = ... +;; ... = A[i + 60]; + +define void @exact7(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %add = add i64 %i.02, 60 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 19 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 10; i++) { +;; A[-6*i] = ... +;; ... = A[-i - 60]; + +define void @exact8(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, -6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %sub1 = sub i64 -60, %i.02 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 10 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i <= 10; i++) { +;; A[-6*i] = ... +;; ... = A[-i - 60]; + +define void @exact9(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, -6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %sub1 = sub i64 -60, %i.02 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [>]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 11 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 12; i++) { +;; A[-6*i] = ... +;; ... = A[-i - 60]; + +define void @exact10(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, -6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %sub1 = sub i64 -60, %i.02 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [>]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 12 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i <= 12; i++) { +;; A[-6*i] = ... +;; ... = A[-i - 60]; + +define void @exact11(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, -6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %sub1 = sub i64 -60, %i.02 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [=>|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 13 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 18; i++) { +;; A[-6*i] = ... +;; ... = A[-i - 60]; + +define void @exact12(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, -6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %sub1 = sub i64 -60, %i.02 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [=>|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 18 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i <= 18; i++) { +;; A[-6*i] = ... +;; ... = A[-i - 60]; + +define void @exact13(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, -6 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %sub1 = sub i64 -60, %i.02 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 19 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} diff --git a/test/Analysis/DependenceAnalysis/GCD.ll b/test/Analysis/DependenceAnalysis/GCD.ll new file mode 100644 index 0000000..94c93a8 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/GCD.ll @@ -0,0 +1,597 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'GCD.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[2*i - 4*j] = ... +;; ... = A[6*i + 8*j]; + +define void @gcd0(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc8 + %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %mul4 = shl nsw i64 %j.02, 2 + %sub = sub nsw i64 %mul, %mul4 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %mul5 = mul nsw i64 %i.03, 6 + %mul6 = shl nsw i64 %j.02, 3 + %add = add nsw i64 %mul5, %mul6 + %arrayidx7 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - flow [=> *|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 100 + br i1 %exitcond, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.04, i64 100 + %inc9 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc9, 100 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[2*i - 4*j] = ... +;; ... = A[6*i + 8*j + 1]; + +define void @gcd1(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc9 + %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %mul4 = shl nsw i64 %j.02, 2 + %sub = sub nsw i64 %mul, %mul4 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %mul5 = mul nsw i64 %i.03, 6 + %mul6 = shl nsw i64 %j.02, 3 + %add = add nsw i64 %mul5, %mul6 + %add7 = or i64 %add, 1 + %arrayidx8 = getelementptr inbounds i32* %A, i64 %add7 + %0 = load i32* %arrayidx8, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 100 + br i1 %exitcond, label %for.body3, label %for.inc9 + +for.inc9: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.04, i64 100 + %inc10 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc10, 100 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end11 + +for.end11: ; preds = %for.inc9 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[2*i - 4*j + 1] = ... +;; ... = A[6*i + 8*j]; + +define void @gcd2(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc9 + %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %mul4 = shl nsw i64 %j.02, 2 + %sub = sub nsw i64 %mul, %mul4 + %add5 = or i64 %sub, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add5 + store i32 %conv, i32* %arrayidx, align 4 + %mul5 = mul nsw i64 %i.03, 6 + %mul6 = shl nsw i64 %j.02, 3 + %add7 = add nsw i64 %mul5, %mul6 + %arrayidx8 = getelementptr inbounds i32* %A, i64 %add7 + %0 = load i32* %arrayidx8, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 100 + br i1 %exitcond, label %for.body3, label %for.inc9 + +for.inc9: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.04, i64 100 + %inc10 = add nsw i64 %i.03, 1 + %exitcond6 = icmp ne i64 %inc10, 100 + br i1 %exitcond6, label %for.cond1.preheader, label %for.end11 + +for.end11: ; preds = %for.inc9 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[i + 2*j] = ... +;; ... = A[i + 2*j - 1]; + +define void @gcd3(i32* %A, i32* %B) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc7 + %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc7 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %j.02, 1 + %add = add nsw i64 %i.03, %mul + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul4 = shl nsw i64 %j.02, 1 + %add5 = add nsw i64 %i.03, %mul4 + %sub = add nsw i64 %add5, -1 + %arrayidx6 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx6, align 4 +; CHECK: da analyze - flow [<> *]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 100 + br i1 %exitcond, label %for.body3, label %for.inc7 + +for.inc7: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.04, i64 100 + %inc8 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc8, 100 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end9 + +for.end9: ; preds = %for.inc7 + ret void +} + + +;; void gcd4(int *A, int *B, long int M, long int N) { +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) { +;; A[5*i + 10*j*M + 9*M*N] = i; +;; *B++ = A[15*i + 20*j*M - 21*N*M + 4]; + +define void @gcd4(i32* %A, i32* %B, i64 %M, i64 %N) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc17 + %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc17 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc18, %for.inc17 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 5 + %mul4 = mul nsw i64 %j.02, 10 + %mul5 = mul nsw i64 %mul4, %M + %add = add nsw i64 %mul, %mul5 + %mul6 = mul nsw i64 %M, 9 + %mul7 = mul nsw i64 %mul6, %N + %add8 = add nsw i64 %add, %mul7 + %arrayidx = getelementptr inbounds i32* %A, i64 %add8 + store i32 %conv, i32* %arrayidx, align 4 + %mul9 = mul nsw i64 %i.03, 15 + %mul10 = mul nsw i64 %j.02, 20 + %mul11 = mul nsw i64 %mul10, %M + %add12 = add nsw i64 %mul9, %mul11 + %mul13 = mul nsw i64 %N, 21 + %mul14 = mul nsw i64 %mul13, %M + %sub = sub nsw i64 %add12, %mul14 + %add15 = add nsw i64 %sub, 4 + %arrayidx16 = getelementptr inbounds i32* %A, i64 %add15 + %0 = load i32* %arrayidx16, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 100 + br i1 %exitcond, label %for.body3, label %for.inc17 + +for.inc17: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.04, i64 100 + %inc18 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc18, 100 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end19 + +for.end19: ; preds = %for.inc17 + ret void +} + + +;; void gcd5(int *A, int *B, long int M, long int N) { +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) { +;; A[5*i + 10*j*M + 9*M*N] = i; +;; *B++ = A[15*i + 20*j*M - 21*N*M + 5]; + +define void @gcd5(i32* %A, i32* %B, i64 %M, i64 %N) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %entry, %for.inc17 + %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc17 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc18, %for.inc17 ] + br label %for.body3 + +for.body3: ; preds = %for.cond1.preheader, %for.body3 + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 5 + %mul4 = mul nsw i64 %j.02, 10 + %mul5 = mul nsw i64 %mul4, %M + %add = add nsw i64 %mul, %mul5 + %mul6 = mul nsw i64 %M, 9 + %mul7 = mul nsw i64 %mul6, %N + %add8 = add nsw i64 %add, %mul7 + %arrayidx = getelementptr inbounds i32* %A, i64 %add8 + store i32 %conv, i32* %arrayidx, align 4 + %mul9 = mul nsw i64 %i.03, 15 + %mul10 = mul nsw i64 %j.02, 20 + %mul11 = mul nsw i64 %mul10, %M + %add12 = add nsw i64 %mul9, %mul11 + %mul13 = mul nsw i64 %N, 21 + %mul14 = mul nsw i64 %mul13, %M + %sub = sub nsw i64 %add12, %mul14 + %add15 = add nsw i64 %sub, 5 + %arrayidx16 = getelementptr inbounds i32* %A, i64 %add15 + %0 = load i32* %arrayidx16, align 4 +; CHECK: da analyze - flow [<> *]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %exitcond = icmp ne i64 %inc, 100 + br i1 %exitcond, label %for.body3, label %for.inc17 + +for.inc17: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.04, i64 100 + %inc18 = add nsw i64 %i.03, 1 + %exitcond5 = icmp ne i64 %inc18, 100 + br i1 %exitcond5, label %for.cond1.preheader, label %for.end19 + +for.end19: ; preds = %for.inc17 + ret void +} + + +;; void gcd6(long int n, int A[][n], int *B) { +;; for (long int i = 0; i < n; i++) +;; for (long int j = 0; j < n; j++) { +;; A[2*i][4*j] = i; +;; *B++ = A[8*i][6*j + 1]; + +define void @gcd6(i64 %n, i32* %A, i32* %B) nounwind uwtable ssp { +entry: + %cmp4 = icmp sgt i64 %n, 0 + br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end12 + +for.cond1.preheader.preheader: ; preds = %entry + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc10 + %i.06 = phi i64 [ %inc11, %for.inc10 ], [ 0, %for.cond1.preheader.preheader ] + %B.addr.05 = phi i32* [ %B.addr.1.lcssa, %for.inc10 ], [ %B, %for.cond1.preheader.preheader ] + %cmp21 = icmp sgt i64 %n, 0 + br i1 %cmp21, label %for.body3.preheader, label %for.inc10 + +for.body3.preheader: ; preds = %for.cond1.preheader + br label %for.body3 + +for.body3: ; preds = %for.body3.preheader, %for.body3 + %j.03 = phi i64 [ %inc, %for.body3 ], [ 0, %for.body3.preheader ] + %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.05, %for.body3.preheader ] + %conv = trunc i64 %i.06 to i32 + %mul = shl nsw i64 %j.03, 2 + %mul4 = shl nsw i64 %i.06, 1 + %0 = mul nsw i64 %mul4, %n + %arrayidx.sum = add i64 %0, %mul + %arrayidx5 = getelementptr inbounds i32* %A, i64 %arrayidx.sum + store i32 %conv, i32* %arrayidx5, align 4 + %mul6 = mul nsw i64 %j.03, 6 + %add7 = or i64 %mul6, 1 + %mul7 = shl nsw i64 %i.06, 3 + %1 = mul nsw i64 %mul7, %n + %arrayidx8.sum = add i64 %1, %add7 + %arrayidx9 = getelementptr inbounds i32* %A, i64 %arrayidx8.sum + %2 = load i32* %arrayidx9, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1 + store i32 %2, i32* %B.addr.12, align 4 + %inc = add nsw i64 %j.03, 1 + %exitcond = icmp ne i64 %inc, %n + br i1 %exitcond, label %for.body3, label %for.inc10.loopexit + +for.inc10.loopexit: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.05, i64 %n + br label %for.inc10 + +for.inc10: ; preds = %for.inc10.loopexit, %for.cond1.preheader + %B.addr.1.lcssa = phi i32* [ %B.addr.05, %for.cond1.preheader ], [ %scevgep, %for.inc10.loopexit ] + %inc11 = add nsw i64 %i.06, 1 + %exitcond8 = icmp ne i64 %inc11, %n + br i1 %exitcond8, label %for.cond1.preheader, label %for.end12.loopexit + +for.end12.loopexit: ; preds = %for.inc10 + br label %for.end12 + +for.end12: ; preds = %for.end12.loopexit, %entry + ret void +} + + +;; void gcd7(int n, int A[][n], int *B) { +;; for (int i = 0; i < n; i++) +;; for (int j = 0; j < n; j++) { +;; A[2*i][4*j] = i; +;; *B++ = A[8*i][6*j + 1]; + +define void @gcd7(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp { +entry: + %0 = zext i32 %n to i64 + %cmp4 = icmp sgt i32 %n, 0 + br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end15 + +for.cond1.preheader.preheader: ; preds = %entry + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc13 + %indvars.iv8 = phi i64 [ 0, %for.cond1.preheader.preheader ], [ %indvars.iv.next9, %for.inc13 ] + %B.addr.05 = phi i32* [ %B.addr.1.lcssa, %for.inc13 ], [ %B, %for.cond1.preheader.preheader ] + %1 = add i32 %n, -1 + %2 = zext i32 %1 to i64 + %3 = add i64 %2, 1 + %cmp21 = icmp sgt i32 %n, 0 + br i1 %cmp21, label %for.body3.preheader, label %for.inc13 + +for.body3.preheader: ; preds = %for.cond1.preheader + br label %for.body3 + +for.body3: ; preds = %for.body3.preheader, %for.body3 + %indvars.iv = phi i64 [ 0, %for.body3.preheader ], [ %indvars.iv.next, %for.body3 ] + %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.05, %for.body3.preheader ] + %4 = trunc i64 %indvars.iv to i32 + %mul = shl nsw i32 %4, 2 + %idxprom = sext i32 %mul to i64 + %5 = trunc i64 %indvars.iv8 to i32 + %mul4 = shl nsw i32 %5, 1 + %idxprom5 = sext i32 %mul4 to i64 + %6 = mul nsw i64 %idxprom5, %0 + %arrayidx.sum = add i64 %6, %idxprom + %arrayidx6 = getelementptr inbounds i32* %A, i64 %arrayidx.sum + %7 = trunc i64 %indvars.iv8 to i32 + store i32 %7, i32* %arrayidx6, align 4 + %8 = trunc i64 %indvars.iv to i32 + %mul7 = mul nsw i32 %8, 6 + %add7 = or i32 %mul7, 1 + %idxprom8 = sext i32 %add7 to i64 + %9 = trunc i64 %indvars.iv8 to i32 + %mul9 = shl nsw i32 %9, 3 + %idxprom10 = sext i32 %mul9 to i64 + %10 = mul nsw i64 %idxprom10, %0 + %arrayidx11.sum = add i64 %10, %idxprom8 + %arrayidx12 = getelementptr inbounds i32* %A, i64 %arrayidx11.sum + %11 = load i32* %arrayidx12, align 4 +; CHECK: da analyze - flow [* *|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1 + store i32 %11, i32* %B.addr.12, align 4 + %indvars.iv.next = add i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body3, label %for.inc13.loopexit + +for.inc13.loopexit: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.05, i64 %3 + br label %for.inc13 + +for.inc13: ; preds = %for.inc13.loopexit, %for.cond1.preheader + %B.addr.1.lcssa = phi i32* [ %B.addr.05, %for.cond1.preheader ], [ %scevgep, %for.inc13.loopexit ] + %indvars.iv.next9 = add i64 %indvars.iv8, 1 + %lftr.wideiv10 = trunc i64 %indvars.iv.next9 to i32 + %exitcond11 = icmp ne i32 %lftr.wideiv10, %n + br i1 %exitcond11, label %for.cond1.preheader, label %for.end15.loopexit + +for.end15.loopexit: ; preds = %for.inc13 + br label %for.end15 + +for.end15: ; preds = %for.end15.loopexit, %entry + ret void +} + + +;; void gcd8(int n, int *A, int *B) { +;; for (int i = 0; i < n; i++) +;; for (int j = 0; j < n; j++) { +;; A[n*2*i + 4*j] = i; +;; *B++ = A[n*8*i + 6*j + 1]; + +define void @gcd8(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp { +entry: + %cmp4 = icmp sgt i32 %n, 0 + br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end15 + +for.cond1.preheader.preheader: ; preds = %entry + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc13 + %i.06 = phi i32 [ %inc14, %for.inc13 ], [ 0, %for.cond1.preheader.preheader ] + %B.addr.05 = phi i32* [ %B.addr.1.lcssa, %for.inc13 ], [ %B, %for.cond1.preheader.preheader ] + %0 = add i32 %n, -1 + %1 = zext i32 %0 to i64 + %2 = add i64 %1, 1 + %cmp21 = icmp sgt i32 %n, 0 + br i1 %cmp21, label %for.body3.preheader, label %for.inc13 + +for.body3.preheader: ; preds = %for.cond1.preheader + br label %for.body3 + +for.body3: ; preds = %for.body3.preheader, %for.body3 + %indvars.iv = phi i64 [ 0, %for.body3.preheader ], [ %indvars.iv.next, %for.body3 ] + %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.05, %for.body3.preheader ] + %mul = shl nsw i32 %n, 1 + %mul4 = mul nsw i32 %mul, %i.06 + %3 = trunc i64 %indvars.iv to i32 + %mul5 = shl nsw i32 %3, 2 + %add = add nsw i32 %mul4, %mul5 + %idxprom = sext i32 %add to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 %i.06, i32* %arrayidx, align 4 + %mul6 = shl nsw i32 %n, 3 + %mul7 = mul nsw i32 %mul6, %i.06 + %4 = trunc i64 %indvars.iv to i32 + %mul8 = mul nsw i32 %4, 6 + %add9 = add nsw i32 %mul7, %mul8 + %add10 = or i32 %add9, 1 + %idxprom11 = sext i32 %add10 to i64 + %arrayidx12 = getelementptr inbounds i32* %A, i64 %idxprom11 + %5 = load i32* %arrayidx12, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1 + store i32 %5, i32* %B.addr.12, align 4 + %indvars.iv.next = add i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body3, label %for.inc13.loopexit + +for.inc13.loopexit: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.05, i64 %2 + br label %for.inc13 + +for.inc13: ; preds = %for.inc13.loopexit, %for.cond1.preheader + %B.addr.1.lcssa = phi i32* [ %B.addr.05, %for.cond1.preheader ], [ %scevgep, %for.inc13.loopexit ] + %inc14 = add nsw i32 %i.06, 1 + %exitcond7 = icmp ne i32 %inc14, %n + br i1 %exitcond7, label %for.cond1.preheader, label %for.end15.loopexit + +for.end15.loopexit: ; preds = %for.inc13 + br label %for.end15 + +for.end15: ; preds = %for.end15.loopexit, %entry + ret void +} + + +;; void gcd9(unsigned n, int A[][n], int *B) { +;; for (unsigned i = 0; i < n; i++) +;; for (unsigned j = 0; j < n; j++) { +;; A[2*i][4*j] = i; +;; *B++ = A[8*i][6*j + 1]; + +define void @gcd9(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp { +entry: + %0 = zext i32 %n to i64 + %cmp4 = icmp eq i32 %n, 0 + br i1 %cmp4, label %for.end15, label %for.cond1.preheader.preheader + +for.cond1.preheader.preheader: ; preds = %entry + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc13 + %indvars.iv8 = phi i64 [ 0, %for.cond1.preheader.preheader ], [ %indvars.iv.next9, %for.inc13 ] + %B.addr.05 = phi i32* [ %B.addr.1.lcssa, %for.inc13 ], [ %B, %for.cond1.preheader.preheader ] + %1 = add i32 %n, -1 + %2 = zext i32 %1 to i64 + %3 = add i64 %2, 1 + %cmp21 = icmp eq i32 %n, 0 + br i1 %cmp21, label %for.inc13, label %for.body3.preheader + +for.body3.preheader: ; preds = %for.cond1.preheader + br label %for.body3 + +for.body3: ; preds = %for.body3.preheader, %for.body3 + %indvars.iv = phi i64 [ 0, %for.body3.preheader ], [ %indvars.iv.next, %for.body3 ] + %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.05, %for.body3.preheader ] + %4 = trunc i64 %indvars.iv to i32 + %mul = shl i32 %4, 2 + %idxprom = zext i32 %mul to i64 + %5 = trunc i64 %indvars.iv8 to i32 + %mul4 = shl i32 %5, 1 + %idxprom5 = zext i32 %mul4 to i64 + %6 = mul nsw i64 %idxprom5, %0 + %arrayidx.sum = add i64 %6, %idxprom + %arrayidx6 = getelementptr inbounds i32* %A, i64 %arrayidx.sum + %7 = trunc i64 %indvars.iv8 to i32 + store i32 %7, i32* %arrayidx6, align 4 + %8 = trunc i64 %indvars.iv to i32 + %mul7 = mul i32 %8, 6 + %add7 = or i32 %mul7, 1 + %idxprom8 = zext i32 %add7 to i64 + %9 = trunc i64 %indvars.iv8 to i32 + %mul9 = shl i32 %9, 3 + %idxprom10 = zext i32 %mul9 to i64 + %10 = mul nsw i64 %idxprom10, %0 + %arrayidx11.sum = add i64 %10, %idxprom8 + %arrayidx12 = getelementptr inbounds i32* %A, i64 %arrayidx11.sum + %11 = load i32* %arrayidx12, align 4 +; CHECK: da analyze - flow [* *|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1 + store i32 %11, i32* %B.addr.12, align 4 + %indvars.iv.next = add i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body3, label %for.inc13.loopexit + +for.inc13.loopexit: ; preds = %for.body3 + %scevgep = getelementptr i32* %B.addr.05, i64 %3 + br label %for.inc13 + +for.inc13: ; preds = %for.inc13.loopexit, %for.cond1.preheader + %B.addr.1.lcssa = phi i32* [ %B.addr.05, %for.cond1.preheader ], [ %scevgep, %for.inc13.loopexit ] + %indvars.iv.next9 = add i64 %indvars.iv8, 1 + %lftr.wideiv10 = trunc i64 %indvars.iv.next9 to i32 + %exitcond11 = icmp ne i32 %lftr.wideiv10, %n + br i1 %exitcond11, label %for.cond1.preheader, label %for.end15.loopexit + +for.end15.loopexit: ; preds = %for.inc13 + br label %for.end15 + +for.end15: ; preds = %for.end15.loopexit, %entry + ret void +} diff --git a/test/Analysis/DependenceAnalysis/Preliminary.ll b/test/Analysis/DependenceAnalysis/Preliminary.ll new file mode 100644 index 0000000..3ef63fd --- /dev/null +++ b/test/Analysis/DependenceAnalysis/Preliminary.ll @@ -0,0 +1,469 @@ +; RUN: opt < %s -analyze -basicaa -indvars -da | FileCheck %s + +; This series of tests is more interesting when debugging is enabled. + +; ModuleID = 'Preliminary.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; may alias +;; int p0(int n, int *A, int *B) { +;; A[0] = n; +;; return B[1]; + +define i32 @p0(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp { +entry: + store i32 %n, i32* %A, align 4 + %arrayidx1 = getelementptr inbounds i32* %B, i64 1 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - confused! + ret i32 %0 +} + + +;; no alias +;; int p1(int n, int *restrict A, int *restrict B) { +;; A[0] = n; +;; return B[1]; + +define i32 @p1(i32 %n, i32* noalias %A, i32* noalias %B) nounwind uwtable ssp { +entry: + store i32 %n, i32* %A, align 4 + %arrayidx1 = getelementptr inbounds i32* %B, i64 1 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + ret i32 %0 +} + +;; check loop nesting levels +;; for (long int i = 0; i < n; i++) +;; for (long int j = 0; j < n; j++) +;; for (long int k = 0; k < n; k++) +;; A[i][j][k] = ... +;; for (long int k = 0; k < n; k++) +;; ... = A[i + 3][j + 2][k + 1]; + +define void @p2(i64 %n, [100 x [100 x i64]]* %A, i64* %B) nounwind uwtable ssp { +entry: + %cmp10 = icmp sgt i64 %n, 0 + br i1 %cmp10, label %for.cond1.preheader, label %for.end26 + +for.cond1.preheader: ; preds = %for.inc24, %entry + %B.addr.012 = phi i64* [ %B.addr.1.lcssa, %for.inc24 ], [ %B, %entry ] + %i.011 = phi i64 [ %inc25, %for.inc24 ], [ 0, %entry ] + %cmp26 = icmp sgt i64 %n, 0 + br i1 %cmp26, label %for.cond4.preheader, label %for.inc24 + +for.cond4.preheader: ; preds = %for.inc21, %for.cond1.preheader + %B.addr.18 = phi i64* [ %B.addr.2.lcssa, %for.inc21 ], [ %B.addr.012, %for.cond1.preheader ] + %j.07 = phi i64 [ %inc22, %for.inc21 ], [ 0, %for.cond1.preheader ] + %cmp51 = icmp sgt i64 %n, 0 + br i1 %cmp51, label %for.body6, label %for.cond10.loopexit + +for.body6: ; preds = %for.body6, %for.cond4.preheader + %k.02 = phi i64 [ %inc, %for.body6 ], [ 0, %for.cond4.preheader ] + %arrayidx8 = getelementptr inbounds [100 x [100 x i64]]* %A, i64 %i.011, i64 %j.07, i64 %k.02 + store i64 %i.011, i64* %arrayidx8, align 8 + %inc = add nsw i64 %k.02, 1 + %cmp5 = icmp slt i64 %inc, %n + br i1 %cmp5, label %for.body6, label %for.cond10.loopexit + +for.cond10.loopexit: ; preds = %for.body6, %for.cond4.preheader + %cmp113 = icmp sgt i64 %n, 0 + br i1 %cmp113, label %for.body12, label %for.inc21 + +for.body12: ; preds = %for.body12, %for.cond10.loopexit + %k9.05 = phi i64 [ %inc19, %for.body12 ], [ 0, %for.cond10.loopexit ] + %B.addr.24 = phi i64* [ %incdec.ptr, %for.body12 ], [ %B.addr.18, %for.cond10.loopexit ] + %add = add nsw i64 %k9.05, 1 + %add13 = add nsw i64 %j.07, 2 + %add14 = add nsw i64 %i.011, 3 + %arrayidx17 = getelementptr inbounds [100 x [100 x i64]]* %A, i64 %add14, i64 %add13, i64 %add + %0 = load i64* %arrayidx17, align 8 +; CHECK: da analyze - flow [-3 -2]! + %incdec.ptr = getelementptr inbounds i64* %B.addr.24, i64 1 + store i64 %0, i64* %B.addr.24, align 8 + %inc19 = add nsw i64 %k9.05, 1 + %cmp11 = icmp slt i64 %inc19, %n + br i1 %cmp11, label %for.body12, label %for.inc21 + +for.inc21: ; preds = %for.body12, %for.cond10.loopexit + %B.addr.2.lcssa = phi i64* [ %B.addr.18, %for.cond10.loopexit ], [ %incdec.ptr, %for.body12 ] + %inc22 = add nsw i64 %j.07, 1 + %cmp2 = icmp slt i64 %inc22, %n + br i1 %cmp2, label %for.cond4.preheader, label %for.inc24 + +for.inc24: ; preds = %for.inc21, %for.cond1.preheader + %B.addr.1.lcssa = phi i64* [ %B.addr.012, %for.cond1.preheader ], [ %B.addr.2.lcssa, %for.inc21 ] + %inc25 = add nsw i64 %i.011, 1 + %cmp = icmp slt i64 %inc25, %n + br i1 %cmp, label %for.cond1.preheader, label %for.end26 + +for.end26: ; preds = %for.inc24, %entry + ret void +} + + +;; classify subscripts +;; for (long int i = 0; i < n; i++) +;; for (long int j = 0; j < n; j++) +;; for (long int k = 0; k < n; k++) +;; for (long int l = 0; l < n; l++) +;; for (long int m = 0; m < n; m++) +;; for (long int o = 0; o < n; o++) +;; for (long int p = 0; p < n; p++) +;; for (long int q = 0; q < n; q++) +;; for (long int r = 0; r < n; r++) +;; for (long int s = 0; s < n; s++) +;; for (long int u = 0; u < n; u++) +;; for (long int t = 0; t < n; t++) { +;; A[i - 3] [j] [2] [k-1] [2*l + 1] [m] [p + q] [r + s] = ... +;; ... = A[i + 3] [2] [u] [1-k] [3*l - 1] [o] [1 + n] [t + 2]; + +define void @p3(i64 %n, [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64* %B) nounwind uwtable ssp { +entry: + %cmp44 = icmp sgt i64 %n, 0 + br i1 %cmp44, label %for.cond1.preheader, label %for.end90 + +for.cond1.preheader: ; preds = %for.inc88, %entry + %B.addr.046 = phi i64* [ %B.addr.1.lcssa, %for.inc88 ], [ %B, %entry ] + %i.045 = phi i64 [ %inc89, %for.inc88 ], [ 0, %entry ] + %cmp240 = icmp sgt i64 %n, 0 + br i1 %cmp240, label %for.cond4.preheader, label %for.inc88 + +for.cond4.preheader: ; preds = %for.inc85, %for.cond1.preheader + %B.addr.142 = phi i64* [ %B.addr.2.lcssa, %for.inc85 ], [ %B.addr.046, %for.cond1.preheader ] + %j.041 = phi i64 [ %inc86, %for.inc85 ], [ 0, %for.cond1.preheader ] + %cmp536 = icmp sgt i64 %n, 0 + br i1 %cmp536, label %for.cond7.preheader, label %for.inc85 + +for.cond7.preheader: ; preds = %for.inc82, %for.cond4.preheader + %B.addr.238 = phi i64* [ %B.addr.3.lcssa, %for.inc82 ], [ %B.addr.142, %for.cond4.preheader ] + %k.037 = phi i64 [ %inc83, %for.inc82 ], [ 0, %for.cond4.preheader ] + %cmp832 = icmp sgt i64 %n, 0 + br i1 %cmp832, label %for.cond10.preheader, label %for.inc82 + +for.cond10.preheader: ; preds = %for.inc79, %for.cond7.preheader + %B.addr.334 = phi i64* [ %B.addr.4.lcssa, %for.inc79 ], [ %B.addr.238, %for.cond7.preheader ] + %l.033 = phi i64 [ %inc80, %for.inc79 ], [ 0, %for.cond7.preheader ] + %cmp1128 = icmp sgt i64 %n, 0 + br i1 %cmp1128, label %for.cond13.preheader, label %for.inc79 + +for.cond13.preheader: ; preds = %for.inc76, %for.cond10.preheader + %B.addr.430 = phi i64* [ %B.addr.5.lcssa, %for.inc76 ], [ %B.addr.334, %for.cond10.preheader ] + %m.029 = phi i64 [ %inc77, %for.inc76 ], [ 0, %for.cond10.preheader ] + %cmp1424 = icmp sgt i64 %n, 0 + br i1 %cmp1424, label %for.cond16.preheader, label %for.inc76 + +for.cond16.preheader: ; preds = %for.inc73, %for.cond13.preheader + %B.addr.526 = phi i64* [ %B.addr.6.lcssa, %for.inc73 ], [ %B.addr.430, %for.cond13.preheader ] + %o.025 = phi i64 [ %inc74, %for.inc73 ], [ 0, %for.cond13.preheader ] + %cmp1720 = icmp sgt i64 %n, 0 + br i1 %cmp1720, label %for.cond19.preheader, label %for.inc73 + +for.cond19.preheader: ; preds = %for.inc70, %for.cond16.preheader + %B.addr.622 = phi i64* [ %B.addr.7.lcssa, %for.inc70 ], [ %B.addr.526, %for.cond16.preheader ] + %p.021 = phi i64 [ %inc71, %for.inc70 ], [ 0, %for.cond16.preheader ] + %cmp2016 = icmp sgt i64 %n, 0 + br i1 %cmp2016, label %for.cond22.preheader, label %for.inc70 + +for.cond22.preheader: ; preds = %for.inc67, %for.cond19.preheader + %B.addr.718 = phi i64* [ %B.addr.8.lcssa, %for.inc67 ], [ %B.addr.622, %for.cond19.preheader ] + %q.017 = phi i64 [ %inc68, %for.inc67 ], [ 0, %for.cond19.preheader ] + %cmp2312 = icmp sgt i64 %n, 0 + br i1 %cmp2312, label %for.cond25.preheader, label %for.inc67 + +for.cond25.preheader: ; preds = %for.inc64, %for.cond22.preheader + %B.addr.814 = phi i64* [ %B.addr.9.lcssa, %for.inc64 ], [ %B.addr.718, %for.cond22.preheader ] + %r.013 = phi i64 [ %inc65, %for.inc64 ], [ 0, %for.cond22.preheader ] + %cmp268 = icmp sgt i64 %n, 0 + br i1 %cmp268, label %for.cond28.preheader, label %for.inc64 + +for.cond28.preheader: ; preds = %for.inc61, %for.cond25.preheader + %B.addr.910 = phi i64* [ %B.addr.10.lcssa, %for.inc61 ], [ %B.addr.814, %for.cond25.preheader ] + %s.09 = phi i64 [ %inc62, %for.inc61 ], [ 0, %for.cond25.preheader ] + %cmp294 = icmp sgt i64 %n, 0 + br i1 %cmp294, label %for.cond31.preheader, label %for.inc61 + +for.cond31.preheader: ; preds = %for.inc58, %for.cond28.preheader + %u.06 = phi i64 [ %inc59, %for.inc58 ], [ 0, %for.cond28.preheader ] + %B.addr.105 = phi i64* [ %B.addr.11.lcssa, %for.inc58 ], [ %B.addr.910, %for.cond28.preheader ] + %cmp321 = icmp sgt i64 %n, 0 + br i1 %cmp321, label %for.body33, label %for.inc58 + +for.body33: ; preds = %for.body33, %for.cond31.preheader + %t.03 = phi i64 [ %inc, %for.body33 ], [ 0, %for.cond31.preheader ] + %B.addr.112 = phi i64* [ %incdec.ptr, %for.body33 ], [ %B.addr.105, %for.cond31.preheader ] + %add = add nsw i64 %r.013, %s.09 + %add34 = add nsw i64 %p.021, %q.017 + %mul = shl nsw i64 %l.033, 1 + %add3547 = or i64 %mul, 1 + %sub = add nsw i64 %k.037, -1 + %sub36 = add nsw i64 %i.045, -3 + %arrayidx43 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %sub36, i64 %j.041, i64 2, i64 %sub, i64 %add3547, i64 %m.029, i64 %add34, i64 %add + store i64 %i.045, i64* %arrayidx43, align 8 + %add44 = add nsw i64 %t.03, 2 + %add45 = add nsw i64 %n, 1 + %mul46 = mul nsw i64 %l.033, 3 + %sub47 = add nsw i64 %mul46, -1 + %sub48 = sub nsw i64 1, %k.037 + %add49 = add nsw i64 %i.045, 3 + %arrayidx57 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %add49, i64 2, i64 %u.06, i64 %sub48, i64 %sub47, i64 %o.025, i64 %add45, i64 %add44 + %0 = load i64* %arrayidx57, align 8 +; CHECK: da analyze - flow [-6 * * => * * * * * * * *] splitable! +; CHECK: da analyze - split level = 3, iteration = 1! + %incdec.ptr = getelementptr inbounds i64* %B.addr.112, i64 1 + store i64 %0, i64* %B.addr.112, align 8 + %inc = add nsw i64 %t.03, 1 + %cmp32 = icmp slt i64 %inc, %n + br i1 %cmp32, label %for.body33, label %for.inc58 + +for.inc58: ; preds = %for.body33, %for.cond31.preheader + %B.addr.11.lcssa = phi i64* [ %B.addr.105, %for.cond31.preheader ], [ %incdec.ptr, %for.body33 ] + %inc59 = add nsw i64 %u.06, 1 + %cmp29 = icmp slt i64 %inc59, %n + br i1 %cmp29, label %for.cond31.preheader, label %for.inc61 + +for.inc61: ; preds = %for.inc58, %for.cond28.preheader + %B.addr.10.lcssa = phi i64* [ %B.addr.910, %for.cond28.preheader ], [ %B.addr.11.lcssa, %for.inc58 ] + %inc62 = add nsw i64 %s.09, 1 + %cmp26 = icmp slt i64 %inc62, %n + br i1 %cmp26, label %for.cond28.preheader, label %for.inc64 + +for.inc64: ; preds = %for.inc61, %for.cond25.preheader + %B.addr.9.lcssa = phi i64* [ %B.addr.814, %for.cond25.preheader ], [ %B.addr.10.lcssa, %for.inc61 ] + %inc65 = add nsw i64 %r.013, 1 + %cmp23 = icmp slt i64 %inc65, %n + br i1 %cmp23, label %for.cond25.preheader, label %for.inc67 + +for.inc67: ; preds = %for.inc64, %for.cond22.preheader + %B.addr.8.lcssa = phi i64* [ %B.addr.718, %for.cond22.preheader ], [ %B.addr.9.lcssa, %for.inc64 ] + %inc68 = add nsw i64 %q.017, 1 + %cmp20 = icmp slt i64 %inc68, %n + br i1 %cmp20, label %for.cond22.preheader, label %for.inc70 + +for.inc70: ; preds = %for.inc67, %for.cond19.preheader + %B.addr.7.lcssa = phi i64* [ %B.addr.622, %for.cond19.preheader ], [ %B.addr.8.lcssa, %for.inc67 ] + %inc71 = add nsw i64 %p.021, 1 + %cmp17 = icmp slt i64 %inc71, %n + br i1 %cmp17, label %for.cond19.preheader, label %for.inc73 + +for.inc73: ; preds = %for.inc70, %for.cond16.preheader + %B.addr.6.lcssa = phi i64* [ %B.addr.526, %for.cond16.preheader ], [ %B.addr.7.lcssa, %for.inc70 ] + %inc74 = add nsw i64 %o.025, 1 + %cmp14 = icmp slt i64 %inc74, %n + br i1 %cmp14, label %for.cond16.preheader, label %for.inc76 + +for.inc76: ; preds = %for.inc73, %for.cond13.preheader + %B.addr.5.lcssa = phi i64* [ %B.addr.430, %for.cond13.preheader ], [ %B.addr.6.lcssa, %for.inc73 ] + %inc77 = add nsw i64 %m.029, 1 + %cmp11 = icmp slt i64 %inc77, %n + br i1 %cmp11, label %for.cond13.preheader, label %for.inc79 + +for.inc79: ; preds = %for.inc76, %for.cond10.preheader + %B.addr.4.lcssa = phi i64* [ %B.addr.334, %for.cond10.preheader ], [ %B.addr.5.lcssa, %for.inc76 ] + %inc80 = add nsw i64 %l.033, 1 + %cmp8 = icmp slt i64 %inc80, %n + br i1 %cmp8, label %for.cond10.preheader, label %for.inc82 + +for.inc82: ; preds = %for.inc79, %for.cond7.preheader + %B.addr.3.lcssa = phi i64* [ %B.addr.238, %for.cond7.preheader ], [ %B.addr.4.lcssa, %for.inc79 ] + %inc83 = add nsw i64 %k.037, 1 + %cmp5 = icmp slt i64 %inc83, %n + br i1 %cmp5, label %for.cond7.preheader, label %for.inc85 + +for.inc85: ; preds = %for.inc82, %for.cond4.preheader + %B.addr.2.lcssa = phi i64* [ %B.addr.142, %for.cond4.preheader ], [ %B.addr.3.lcssa, %for.inc82 ] + %inc86 = add nsw i64 %j.041, 1 + %cmp2 = icmp slt i64 %inc86, %n + br i1 %cmp2, label %for.cond4.preheader, label %for.inc88 + +for.inc88: ; preds = %for.inc85, %for.cond1.preheader + %B.addr.1.lcssa = phi i64* [ %B.addr.046, %for.cond1.preheader ], [ %B.addr.2.lcssa, %for.inc85 ] + %inc89 = add nsw i64 %i.045, 1 + %cmp = icmp slt i64 %inc89, %n + br i1 %cmp, label %for.cond1.preheader, label %for.end90 + +for.end90: ; preds = %for.inc88, %entry + ret void +} + + +;; cleanup around chars, shorts, ints +;;void p4(int *A, int *B, long int n) +;; for (char i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @p4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp sgt i64 %n, 0 + br i1 %cmp1, label %for.body, label %for.end + +for.body: ; preds = %for.body, %entry + %i.03 = phi i8 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv2 = sext i8 %i.03 to i32 + %conv3 = sext i8 %i.03 to i64 + %add = add i64 %conv3, 2 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv2, i32* %arrayidx, align 4 + %idxprom4 = sext i8 %i.03 to i64 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %idxprom4 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i8 %i.03, 1 + %conv = sext i8 %inc to i64 + %cmp = icmp slt i64 %conv, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;;void p5(int *A, int *B, long int n) +;; for (short i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @p5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp sgt i64 %n, 0 + br i1 %cmp1, label %for.body, label %for.end + +for.body: ; preds = %for.body, %entry + %i.03 = phi i16 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv2 = sext i16 %i.03 to i32 + %conv3 = sext i16 %i.03 to i64 + %add = add i64 %conv3, 2 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv2, i32* %arrayidx, align 4 + %idxprom4 = sext i16 %i.03 to i64 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %idxprom4 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i16 %i.03, 1 + %conv = sext i16 %inc to i64 + %cmp = icmp slt i64 %conv, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;;void p6(int *A, int *B, long int n) +;; for (int i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @p6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp sgt i64 %n, 0 + br i1 %cmp1, label %for.body, label %for.end + +for.body: ; preds = %for.body, %entry + %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %add = add nsw i32 %i.03, 2 + %idxprom = sext i32 %add to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 %i.03, i32* %arrayidx, align 4 + %idxprom2 = sext i32 %i.03 to i64 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %idxprom2 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - consistent flow [2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i32 %i.03, 1 + %conv = sext i32 %inc to i64 + %cmp = icmp slt i64 %conv, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;;void p7(unsigned *A, unsigned *B, char n) +;; A[n] = ... +;; ... = A[n + 1]; + +define void @p7(i32* %A, i32* %B, i8 signext %n) nounwind uwtable ssp { +entry: + %idxprom = sext i8 %n to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 0, i32* %arrayidx, align 4 + %conv = sext i8 %n to i64 + %add = add i64 %conv, 1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + store i32 %0, i32* %B, align 4 + ret void +} + + + +;;void p8(unsigned *A, unsigned *B, short n) +;; A[n] = ... +;; ... = A[n + 1]; + +define void @p8(i32* %A, i32* %B, i16 signext %n) nounwind uwtable ssp { +entry: + %idxprom = sext i16 %n to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 0, i32* %arrayidx, align 4 + %conv = sext i16 %n to i64 + %add = add i64 %conv, 1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + store i32 %0, i32* %B, align 4 + ret void +} + + +;;void p9(unsigned *A, unsigned *B, int n) +;; A[n] = ... +;; ... = A[n + 1]; + +define void @p9(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + %idxprom = sext i32 %n to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 0, i32* %arrayidx, align 4 + %add = add nsw i32 %n, 1 + %idxprom1 = sext i32 %add to i64 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + store i32 %0, i32* %B, align 4 + ret void +} + + +;;void p10(unsigned *A, unsigned *B, unsigned n) +;; A[n] = ... +;; ... = A[n + 1]; + +define void @p10(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + %idxprom = zext i32 %n to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 0, i32* %arrayidx, align 4 + %add = add i32 %n, 1 + %idxprom1 = zext i32 %add to i64 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + store i32 %0, i32* %B, align 4 + ret void +} diff --git a/test/Analysis/DependenceAnalysis/Propagating.ll b/test/Analysis/DependenceAnalysis/Propagating.ll new file mode 100644 index 0000000..076348c --- /dev/null +++ b/test/Analysis/DependenceAnalysis/Propagating.ll @@ -0,0 +1,467 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'Propagating.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[i + 1][i + j] = i; +;; *B++ = A[i][i + j]; + +define void @prop0([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc9, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc9 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %add = add nsw i64 %i.03, %j.02 + %add4 = add nsw i64 %i.03, 1 + %arrayidx5 = getelementptr inbounds [100 x i32]* %A, i64 %add4, i64 %add + store i32 %conv, i32* %arrayidx5, align 4 + %add6 = add nsw i64 %i.03, %j.02 + %arrayidx8 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add6 + %0 = load i32* %arrayidx8, align 4 +; CHECK: da analyze - consistent flow [1 -1]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc9 + +for.inc9: ; preds = %for.body3 + %inc10 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc10, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end11 + +for.end11: ; preds = %for.inc9 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; for (long int k = 0; k < 100; k++) +;; A[j - i][i + 1][j + k] = ... +;; ... = A[j - i][i][j + k]; + +define void @prop1([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc18, %entry + %B.addr.06 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc18 ] + %i.05 = phi i64 [ 0, %entry ], [ %inc19, %for.inc18 ] + br label %for.cond4.preheader + +for.cond4.preheader: ; preds = %for.inc15, %for.cond1.preheader + %B.addr.14 = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %incdec.ptr, %for.inc15 ] + %j.03 = phi i64 [ 0, %for.cond1.preheader ], [ %inc16, %for.inc15 ] + br label %for.body6 + +for.body6: ; preds = %for.body6, %for.cond4.preheader + %k.02 = phi i64 [ 0, %for.cond4.preheader ], [ %inc, %for.body6 ] + %B.addr.21 = phi i32* [ %B.addr.14, %for.cond4.preheader ], [ %incdec.ptr, %for.body6 ] + %conv = trunc i64 %i.05 to i32 + %add = add nsw i64 %j.03, %k.02 + %add7 = add nsw i64 %i.05, 1 + %sub = sub nsw i64 %j.03, %i.05 + %arrayidx9 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %sub, i64 %add7, i64 %add + store i32 %conv, i32* %arrayidx9, align 4 + %add10 = add nsw i64 %j.03, %k.02 + %sub11 = sub nsw i64 %j.03, %i.05 + %arrayidx14 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %sub11, i64 %i.05, i64 %add10 + %0 = load i32* %arrayidx14, align 4 +; CHECK: da analyze - consistent flow [1 1 -1]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.21, i64 1 + store i32 %0, i32* %B.addr.21, align 4 + %inc = add nsw i64 %k.02, 1 + %cmp5 = icmp slt i64 %inc, 100 + br i1 %cmp5, label %for.body6, label %for.inc15 + +for.inc15: ; preds = %for.body6 + %inc16 = add nsw i64 %j.03, 1 + %cmp2 = icmp slt i64 %inc16, 100 + br i1 %cmp2, label %for.cond4.preheader, label %for.inc18 + +for.inc18: ; preds = %for.inc15 + %inc19 = add nsw i64 %i.05, 1 + %cmp = icmp slt i64 %inc19, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end20 + +for.end20: ; preds = %for.inc18 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[i - 1][2*i] = ... +;; ... = A[i][i + j + 110]; + +define void @prop2([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc8, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc8 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %sub = add nsw i64 %i.03, -1 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %sub, i64 %mul + store i32 %conv, i32* %arrayidx4, align 4 + %add = add nsw i64 %i.03, %j.02 + %add5 = add nsw i64 %add, 110 + %arrayidx7 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add5 + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc8 + +for.inc8: ; preds = %for.body3 + %inc9 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc9, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end10 + +for.end10: ; preds = %for.inc8 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[i][2*j + i] = ... +;; ... = A[i][2*j - i + 5]; + +define void @prop3([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc9, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc9 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %j.02, 1 + %add = add nsw i64 %mul, %i.03 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add + store i32 %conv, i32* %arrayidx4, align 4 + %mul5 = shl nsw i64 %j.02, 1 + %sub = sub nsw i64 %mul5, %i.03 + %add6 = add nsw i64 %sub, 5 + %arrayidx8 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add6 + %0 = load i32* %arrayidx8, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc9 + +for.inc9: ; preds = %for.body3 + %inc10 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc10, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end11 + +for.end11: ; preds = %for.inc9 + ret void +} + + +;; propagate Distance +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[i + 2][2*i + j + 1] = ... +;; ... = A[i][2*i + j]; + +define void @prop4([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc11, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc11 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc12, %for.inc11 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %add = add nsw i64 %mul, %j.02 + %add4 = add nsw i64 %add, 1 + %add5 = add nsw i64 %i.03, 2 + %arrayidx6 = getelementptr inbounds [100 x i32]* %A, i64 %add5, i64 %add4 + store i32 %conv, i32* %arrayidx6, align 4 + %mul7 = shl nsw i64 %i.03, 1 + %add8 = add nsw i64 %mul7, %j.02 + %arrayidx10 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add8 + %0 = load i32* %arrayidx10, align 4 +; CHECK: da analyze - consistent flow [2 -3]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc11 + +for.inc11: ; preds = %for.body3 + %inc12 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc12, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end13 + +for.end13: ; preds = %for.inc11 + ret void +} + + +;; propagate Point +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[3*i - 18][22 - i][2*i + j] = ... +;; ... = A[i][i][3*i + j]; + +define void @prop5([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc13, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc13 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc14, %for.inc13 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %add = add nsw i64 %mul, %j.02 + %sub = sub nsw i64 22, %i.03 + %mul4 = mul nsw i64 %i.03, 3 + %sub5 = add nsw i64 %mul4, -18 + %arrayidx7 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %sub5, i64 %sub, i64 %add + store i32 %conv, i32* %arrayidx7, align 4 + %mul8 = mul nsw i64 %i.03, 3 + %add9 = add nsw i64 %mul8, %j.02 + %arrayidx12 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.03, i64 %i.03, i64 %add9 + %0 = load i32* %arrayidx12, align 4 +; CHECK: da analyze - flow [< -16] splitable! +; CHECK: da analyze - split level = 1, iteration = 11! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc13 + +for.inc13: ; preds = %for.body3 + %inc14 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc14, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end15 + +for.end15: ; preds = %for.inc13 + ret void +} + + +;; propagate Line +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[i + 1][4*i + j + 2] = ... +;; ... = A[2*i][8*i + j]; + +define void @prop6([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc12, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc12 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc13, %for.inc12 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 2 + %add = add nsw i64 %mul, %j.02 + %add4 = add nsw i64 %add, 2 + %add5 = add nsw i64 %i.03, 1 + %arrayidx6 = getelementptr inbounds [100 x i32]* %A, i64 %add5, i64 %add4 + store i32 %conv, i32* %arrayidx6, align 4 + %mul7 = shl nsw i64 %i.03, 3 + %add8 = add nsw i64 %mul7, %j.02 + %mul9 = shl nsw i64 %i.03, 1 + %arrayidx11 = getelementptr inbounds [100 x i32]* %A, i64 %mul9, i64 %add8 + %0 = load i32* %arrayidx11, align 4 +; CHECK: da analyze - flow [=> -2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc12 + +for.inc12: ; preds = %for.body3 + %inc13 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc13, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end14 + +for.end14: ; preds = %for.inc12 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[2*i + 4][-5*i + j + 2] = ... +;; ... = A[-2*i + 20][5*i + j]; + +define void @prop7([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc14, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc14 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc15, %for.inc14 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -5 + %add = add nsw i64 %mul, %j.02 + %add4 = add nsw i64 %add, 2 + %mul5 = shl nsw i64 %i.03, 1 + %add6 = add nsw i64 %mul5, 4 + %arrayidx7 = getelementptr inbounds [100 x i32]* %A, i64 %add6, i64 %add4 + store i32 %conv, i32* %arrayidx7, align 4 + %mul8 = mul nsw i64 %i.03, 5 + %add9 = add nsw i64 %mul8, %j.02 + %mul10 = mul nsw i64 %i.03, -2 + %add11 = add nsw i64 %mul10, 20 + %arrayidx13 = getelementptr inbounds [100 x i32]* %A, i64 %add11, i64 %add9 + %0 = load i32* %arrayidx13, align 4 +; CHECK: da analyze - flow [* -38] splitable! +; CHECK: da analyze - split level = 1, iteration = 4! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc14 + +for.inc14: ; preds = %for.body3 + %inc15 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc15, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end16 + +for.end16: ; preds = %for.inc14 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[4][j + 2] = ... +;; ... = A[-2*i + 4][5*i + j]; + +define void @prop8([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc10, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc10 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc11, %for.inc10 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %add = add nsw i64 %j.02, 2 + %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 4, i64 %add + store i32 %conv, i32* %arrayidx4, align 4 + %mul = mul nsw i64 %i.03, 5 + %add5 = add nsw i64 %mul, %j.02 + %mul6 = mul nsw i64 %i.03, -2 + %add7 = add nsw i64 %mul6, 4 + %arrayidx9 = getelementptr inbounds [100 x i32]* %A, i64 %add7, i64 %add5 + %0 = load i32* %arrayidx9, align 4 +; CHECK: da analyze - flow [p<= 2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc10 + +for.inc10: ; preds = %for.body3 + %inc11 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc11, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end12 + +for.end12: ; preds = %for.inc10 + ret void +} + + +;; for (long int i = 0; i < 100; i++) +;; for (long int j = 0; j < 100; j++) +;; A[2*i + 4][5*i + j + 2] = ... +;; ... = A[4][j]; + +define void @prop9([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc10, %entry + %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc10 ] + %i.03 = phi i64 [ 0, %entry ], [ %inc11, %for.inc10 ] + br label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ] + %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, 5 + %add = add nsw i64 %mul, %j.02 + %add4 = add nsw i64 %add, 2 + %mul5 = shl nsw i64 %i.03, 1 + %add6 = add nsw i64 %mul5, 4 + %arrayidx7 = getelementptr inbounds [100 x i32]* %A, i64 %add6, i64 %add4 + store i32 %conv, i32* %arrayidx7, align 4 + %arrayidx9 = getelementptr inbounds [100 x i32]* %A, i64 4, i64 %j.02 + %0 = load i32* %arrayidx9, align 4 +; CHECK: da analyze - flow [p<= 2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1 + store i32 %0, i32* %B.addr.11, align 4 + %inc = add nsw i64 %j.02, 1 + %cmp2 = icmp slt i64 %inc, 100 + br i1 %cmp2, label %for.body3, label %for.inc10 + +for.inc10: ; preds = %for.body3 + %inc11 = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc11, 100 + br i1 %cmp, label %for.cond1.preheader, label %for.end12 + +for.end12: ; preds = %for.inc10 + ret void +} diff --git a/test/Analysis/DependenceAnalysis/Separability.ll b/test/Analysis/DependenceAnalysis/Separability.ll new file mode 100644 index 0000000..d42d3cd --- /dev/null +++ b/test/Analysis/DependenceAnalysis/Separability.ll @@ -0,0 +1,267 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'Separability.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < 50; i++) +;; for (long int j = 0; j < 50; j++) +;; for (long int k = 0; k < 50; k++) +;; for (long int l = 0; l < 50; l++) +;; A[n][i][j + k] = ... +;; ... = A[10][i + 10][2*j - l]; + +define void @sep0([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc22, %entry + %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc22 ] + %i.07 = phi i64 [ 0, %entry ], [ %inc23, %for.inc22 ] + br label %for.cond4.preheader + +for.cond4.preheader: ; preds = %for.inc19, %for.cond1.preheader + %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc19 ] + %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc20, %for.inc19 ] + br label %for.cond7.preheader + +for.cond7.preheader: ; preds = %for.inc16, %for.cond4.preheader + %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc16 ] + %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc17, %for.inc16 ] + br label %for.body9 + +for.body9: ; preds = %for.body9, %for.cond7.preheader + %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ] + %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ] + %conv = trunc i64 %i.07 to i32 + %add = add nsw i64 %j.05, %k.03 + %idxprom = sext i32 %n to i64 + %arrayidx11 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %idxprom, i64 %i.07, i64 %add + store i32 %conv, i32* %arrayidx11, align 4 + %mul = shl nsw i64 %j.05, 1 + %sub = sub nsw i64 %mul, %l.02 + %add12 = add nsw i64 %i.07, 10 + %arrayidx15 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 10, i64 %add12, i64 %sub + %0 = load i32* %arrayidx15, align 4 +; CHECK: da analyze - flow [-10 * * *]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1 + store i32 %0, i32* %B.addr.31, align 4 + %inc = add nsw i64 %l.02, 1 + %cmp8 = icmp slt i64 %inc, 50 + br i1 %cmp8, label %for.body9, label %for.inc16 + +for.inc16: ; preds = %for.body9 + %inc17 = add nsw i64 %k.03, 1 + %cmp5 = icmp slt i64 %inc17, 50 + br i1 %cmp5, label %for.cond7.preheader, label %for.inc19 + +for.inc19: ; preds = %for.inc16 + %inc20 = add nsw i64 %j.05, 1 + %cmp2 = icmp slt i64 %inc20, 50 + br i1 %cmp2, label %for.cond4.preheader, label %for.inc22 + +for.inc22: ; preds = %for.inc19 + %inc23 = add nsw i64 %i.07, 1 + %cmp = icmp slt i64 %inc23, 50 + br i1 %cmp, label %for.cond1.preheader, label %for.end24 + +for.end24: ; preds = %for.inc22 + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; for (long int j = 0; j < 50; j++) +;; for (long int k = 0; k < 50; k++) +;; for (long int l = 0; l < 50; l++) +;; A[i][i][j + k] = ... +;; ... = A[10][i + 10][2*j - l]; + +define void @sep1([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc22, %entry + %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc22 ] + %i.07 = phi i64 [ 0, %entry ], [ %inc23, %for.inc22 ] + br label %for.cond4.preheader + +for.cond4.preheader: ; preds = %for.inc19, %for.cond1.preheader + %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc19 ] + %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc20, %for.inc19 ] + br label %for.cond7.preheader + +for.cond7.preheader: ; preds = %for.inc16, %for.cond4.preheader + %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc16 ] + %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc17, %for.inc16 ] + br label %for.body9 + +for.body9: ; preds = %for.body9, %for.cond7.preheader + %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ] + %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ] + %conv = trunc i64 %i.07 to i32 + %add = add nsw i64 %j.05, %k.03 + %arrayidx11 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.07, i64 %i.07, i64 %add + store i32 %conv, i32* %arrayidx11, align 4 + %mul = shl nsw i64 %j.05, 1 + %sub = sub nsw i64 %mul, %l.02 + %add12 = add nsw i64 %i.07, 10 + %arrayidx15 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 10, i64 %add12, i64 %sub + %0 = load i32* %arrayidx15, align 4 +; CHECK: da analyze - flow [> * * *]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1 + store i32 %0, i32* %B.addr.31, align 4 + %inc = add nsw i64 %l.02, 1 + %cmp8 = icmp slt i64 %inc, 50 + br i1 %cmp8, label %for.body9, label %for.inc16 + +for.inc16: ; preds = %for.body9 + %inc17 = add nsw i64 %k.03, 1 + %cmp5 = icmp slt i64 %inc17, 50 + br i1 %cmp5, label %for.cond7.preheader, label %for.inc19 + +for.inc19: ; preds = %for.inc16 + %inc20 = add nsw i64 %j.05, 1 + %cmp2 = icmp slt i64 %inc20, 50 + br i1 %cmp2, label %for.cond4.preheader, label %for.inc22 + +for.inc22: ; preds = %for.inc19 + %inc23 = add nsw i64 %i.07, 1 + %cmp = icmp slt i64 %inc23, 50 + br i1 %cmp, label %for.cond1.preheader, label %for.end24 + +for.end24: ; preds = %for.inc22 + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; for (long int j = 0; j < 50; j++) +;; for (long int k = 0; k < 50; k++) +;; for (long int l = 0; l < 50; l++) +;; A[i][i][i + k][l] = ... +;; ... = A[10][i + 10][j + k][l + 10]; + +define void @sep2([100 x [100 x [100 x i32]]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc26, %entry + %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc26 ] + %i.07 = phi i64 [ 0, %entry ], [ %inc27, %for.inc26 ] + br label %for.cond4.preheader + +for.cond4.preheader: ; preds = %for.inc23, %for.cond1.preheader + %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc23 ] + %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc24, %for.inc23 ] + br label %for.cond7.preheader + +for.cond7.preheader: ; preds = %for.inc20, %for.cond4.preheader + %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc20 ] + %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc21, %for.inc20 ] + br label %for.body9 + +for.body9: ; preds = %for.body9, %for.cond7.preheader + %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ] + %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ] + %conv = trunc i64 %i.07 to i32 + %add = add nsw i64 %i.07, %k.03 + %arrayidx12 = getelementptr inbounds [100 x [100 x [100 x i32]]]* %A, i64 %i.07, i64 %i.07, i64 %add, i64 %l.02 + store i32 %conv, i32* %arrayidx12, align 4 + %add13 = add nsw i64 %l.02, 10 + %add14 = add nsw i64 %j.05, %k.03 + %add15 = add nsw i64 %i.07, 10 + %arrayidx19 = getelementptr inbounds [100 x [100 x [100 x i32]]]* %A, i64 10, i64 %add15, i64 %add14, i64 %add13 + %0 = load i32* %arrayidx19, align 4 +; CHECK: da analyze - flow [> * * -10]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1 + store i32 %0, i32* %B.addr.31, align 4 + %inc = add nsw i64 %l.02, 1 + %cmp8 = icmp slt i64 %inc, 50 + br i1 %cmp8, label %for.body9, label %for.inc20 + +for.inc20: ; preds = %for.body9 + %inc21 = add nsw i64 %k.03, 1 + %cmp5 = icmp slt i64 %inc21, 50 + br i1 %cmp5, label %for.cond7.preheader, label %for.inc23 + +for.inc23: ; preds = %for.inc20 + %inc24 = add nsw i64 %j.05, 1 + %cmp2 = icmp slt i64 %inc24, 50 + br i1 %cmp2, label %for.cond4.preheader, label %for.inc26 + +for.inc26: ; preds = %for.inc23 + %inc27 = add nsw i64 %i.07, 1 + %cmp = icmp slt i64 %inc27, 50 + br i1 %cmp, label %for.cond1.preheader, label %for.end28 + +for.end28: ; preds = %for.inc26 + ret void +} + + +;; for (long int i = 0; i < 50; i++) +;; for (long int j = 0; j < 50; j++) +;; for (long int k = 0; k < 50; k++) +;; for (long int l = 0; l < 50; l++) +;; A[i][i][i + k][l + k] = ... +;; ... = A[10][i + 10][j + k][l + 10]; + +define void @sep3([100 x [100 x [100 x i32]]]* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc27, %entry + %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc27 ] + %i.07 = phi i64 [ 0, %entry ], [ %inc28, %for.inc27 ] + br label %for.cond4.preheader + +for.cond4.preheader: ; preds = %for.inc24, %for.cond1.preheader + %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc24 ] + %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc25, %for.inc24 ] + br label %for.cond7.preheader + +for.cond7.preheader: ; preds = %for.inc21, %for.cond4.preheader + %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc21 ] + %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc22, %for.inc21 ] + br label %for.body9 + +for.body9: ; preds = %for.body9, %for.cond7.preheader + %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ] + %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ] + %conv = trunc i64 %i.07 to i32 + %add = add nsw i64 %l.02, %k.03 + %add10 = add nsw i64 %i.07, %k.03 + %arrayidx13 = getelementptr inbounds [100 x [100 x [100 x i32]]]* %A, i64 %i.07, i64 %i.07, i64 %add10, i64 %add + store i32 %conv, i32* %arrayidx13, align 4 + %add14 = add nsw i64 %l.02, 10 + %add15 = add nsw i64 %j.05, %k.03 + %add16 = add nsw i64 %i.07, 10 + %arrayidx20 = getelementptr inbounds [100 x [100 x [100 x i32]]]* %A, i64 10, i64 %add16, i64 %add15, i64 %add14 + %0 = load i32* %arrayidx20, align 4 +; CHECK: da analyze - flow [> * * *]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1 + store i32 %0, i32* %B.addr.31, align 4 + %inc = add nsw i64 %l.02, 1 + %cmp8 = icmp slt i64 %inc, 50 + br i1 %cmp8, label %for.body9, label %for.inc21 + +for.inc21: ; preds = %for.body9 + %inc22 = add nsw i64 %k.03, 1 + %cmp5 = icmp slt i64 %inc22, 50 + br i1 %cmp5, label %for.cond7.preheader, label %for.inc24 + +for.inc24: ; preds = %for.inc21 + %inc25 = add nsw i64 %j.05, 1 + %cmp2 = icmp slt i64 %inc25, 50 + br i1 %cmp2, label %for.cond4.preheader, label %for.inc27 + +for.inc27: ; preds = %for.inc24 + %inc28 = add nsw i64 %i.07, 1 + %cmp = icmp slt i64 %inc28, 50 + br i1 %cmp, label %for.cond1.preheader, label %for.end29 + +for.end29: ; preds = %for.inc27 + ret void +} diff --git a/test/Analysis/DependenceAnalysis/StrongSIV.ll b/test/Analysis/DependenceAnalysis/StrongSIV.ll new file mode 100644 index 0000000..be336c3 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/StrongSIV.ll @@ -0,0 +1,342 @@ +; RUN: opt < %s -analyze -basicaa -indvars -da | FileCheck %s + +; ModuleID = 'StrongSIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (int i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @strong0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp sgt i64 %n, 0 + br i1 %cmp1, label %for.body, label %for.end + +for.body: ; preds = %for.body, %entry + %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %add = add nsw i32 %i.03, 2 + %idxprom = sext i32 %add to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 %i.03, i32* %arrayidx, align 4 + %idxprom2 = sext i32 %i.03 to i64 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %idxprom2 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - consistent flow [2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i32 %i.03, 1 + %conv = sext i32 %inc to i64 + %cmp = icmp slt i64 %conv, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long int i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @strong1(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + %conv = sext i32 %n to i64 + %cmp1 = icmp sgt i32 %n, 0 + br i1 %cmp1, label %for.body, label %for.end + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv2 = trunc i64 %i.03 to i32 + %add = add nsw i64 %i.03, 2 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv2, i32* %arrayidx, align 4 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %i.03 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - consistent flow [2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp slt i64 %inc, %conv + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @strong2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %add = add i64 %i.03, 2 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.03 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - consistent flow [2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (int i = 0; i < n; i++) +;; A[i + 2] = ... +;; ... = A[i]; + +define void @strong3(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp sgt i32 %n, 0 + br i1 %cmp1, label %for.body, label %for.end + +for.body: ; preds = %for.body, %entry + %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %add = add nsw i32 %i.03, 2 + %idxprom = sext i32 %add to i64 + %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom + store i32 %i.03, i32* %arrayidx, align 4 + %idxprom1 = sext i32 %i.03 to i64 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - consistent flow [2]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i32 %i.03, 1 + %cmp = icmp slt i32 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < 19; i++) +;; A[i + 19] = ... +;; ... = A[i]; + +define void @strong4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %add = add i64 %i.02, 19 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 19 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 20; i++) +;; A[i + 19] = ... +;; ... = A[i]; + +define void @strong5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %add = add i64 %i.02, 19 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - consistent flow [19]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 20 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 20; i++) +;; A[2*i + 6] = ... +;; ... = A[2*i]; + +define void @strong6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %add = add i64 %mul, 6 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul1 = shl i64 %i.02, 1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %mul1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - consistent flow [3]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 20 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 20; i++) +;; A[2*i + 7] = ... +;; ... = A[2*i]; + +define void @strong7(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %add = add i64 %mul, 7 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul1 = shl i64 %i.02, 1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %mul1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 20 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 20; i++) +;; A[i + n] = ... +;; ... = A[i]; + +define void @strong8(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %add = add i64 %i.02, %n + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - consistent flow [%n|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 20 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[i + n] = ... +;; ... = A[i + 2*n]; + +define void @strong9(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %add = add i64 %i.03, %n + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %n, 1 + %add1 = add i64 %i.03, %mul + %arrayidx2 = getelementptr inbounds i32* %A, i64 %add1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < 1000; i++) +;; A[n*i + 5] = ... +;; ... = A[n*i + 5]; + +define void @strong10(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = mul i64 %i.02, %n + %add = add i64 %mul, 5 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul1 = mul i64 %i.02, %n + %add2 = add i64 %mul1, 5 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %add2 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - consistent flow [0|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 1000 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} diff --git a/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll b/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll new file mode 100644 index 0000000..2a1b4e7 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll @@ -0,0 +1,312 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'SymbolicRDIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < n1; i++) +;; A[2*i + n1] = ... +;; for (long int j = 0; j < n2; j++) +;; ... = A[3*j + 3*n1]; + +define void @symbolicrdiv0(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.cond1.preheader, label %for.body + +for.cond1.preheader: ; preds = %for.body, %entry + %cmp21 = icmp eq i64 %n2, 0 + br i1 %cmp21, label %for.end11, label %for.body4 + +for.body: ; preds = %for.body, %entry + %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %conv = trunc i64 %i.05 to i32 + %mul = shl nsw i64 %i.05, 1 + %add = add i64 %mul, %n1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc, %n1 + br i1 %cmp, label %for.body, label %for.cond1.preheader + +for.body4: ; preds = %for.body4, %for.cond1.preheader + %j.03 = phi i64 [ %inc10, %for.body4 ], [ 0, %for.cond1.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ] + %mul56 = add i64 %j.03, %n1 + %add7 = mul i64 %mul56, 3 + %arrayidx8 = getelementptr inbounds i32* %A, i64 %add7 + %0 = load i32* %arrayidx8, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc10 = add nsw i64 %j.03, 1 + %cmp2 = icmp ult i64 %inc10, %n2 + br i1 %cmp2, label %for.body4, label %for.end11 + +for.end11: ; preds = %for.body4, %for.cond1.preheader + ret void +} + + +;; for (long int i = 0; i < n1; i++) +;; A[2*i + 5*n2] = ... +;; for (long int j = 0; j < n2; j++) +;; ... = A[3*j + 2*n2]; + +define void @symbolicrdiv1(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.cond2.preheader, label %for.body + +for.cond2.preheader: ; preds = %for.body, %entry + %cmp31 = icmp eq i64 %n2, 0 + br i1 %cmp31, label %for.end12, label %for.body5 + +for.body: ; preds = %for.body, %entry + %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %conv = trunc i64 %i.05 to i32 + %mul = shl nsw i64 %i.05, 1 + %mul1 = mul i64 %n2, 5 + %add = add i64 %mul, %mul1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc, %n1 + br i1 %cmp, label %for.body, label %for.cond2.preheader + +for.body5: ; preds = %for.body5, %for.cond2.preheader + %j.03 = phi i64 [ %inc11, %for.body5 ], [ 0, %for.cond2.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body5 ], [ %B, %for.cond2.preheader ] + %mul6 = mul nsw i64 %j.03, 3 + %mul7 = shl i64 %n2, 1 + %add8 = add i64 %mul6, %mul7 + %arrayidx9 = getelementptr inbounds i32* %A, i64 %add8 + %0 = load i32* %arrayidx9, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc11 = add nsw i64 %j.03, 1 + %cmp3 = icmp ult i64 %inc11, %n2 + br i1 %cmp3, label %for.body5, label %for.end12 + +for.end12: ; preds = %for.body5, %for.cond2.preheader + ret void +} + + +;; for (long int i = 0; i < n1; i++) +;; A[2*i - n2] = ... +;; for (long int j = 0; j < n2; j++) +;; ... = A[-j + 2*n1]; + +define void @symbolicrdiv2(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.cond1.preheader, label %for.body + +for.cond1.preheader: ; preds = %for.body, %entry + %cmp21 = icmp eq i64 %n2, 0 + br i1 %cmp21, label %for.end10, label %for.body4 + +for.body: ; preds = %for.body, %entry + %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %conv = trunc i64 %i.05 to i32 + %mul = shl nsw i64 %i.05, 1 + %sub = sub i64 %mul, %n2 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc, %n1 + br i1 %cmp, label %for.body, label %for.cond1.preheader + +for.body4: ; preds = %for.body4, %for.cond1.preheader + %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.cond1.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ] + %mul6 = shl i64 %n1, 1 + %add = sub i64 %mul6, %j.03 + %arrayidx7 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc9 = add nsw i64 %j.03, 1 + %cmp2 = icmp ult i64 %inc9, %n2 + br i1 %cmp2, label %for.body4, label %for.end10 + +for.end10: ; preds = %for.body4, %for.cond1.preheader + ret void +} + + +;; for (long int i = 0; i < n1; i++) +;; A[-i + n2] = ... +;; for (long int j = 0; j < n2; j++) +;; ... = A[j - n1]; + +define void @symbolicrdiv3(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.cond1.preheader, label %for.body + +for.cond1.preheader: ; preds = %for.body, %entry + %cmp21 = icmp eq i64 %n2, 0 + br i1 %cmp21, label %for.end9, label %for.body4 + +for.body: ; preds = %for.body, %entry + %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %conv = trunc i64 %i.05 to i32 + %add = sub i64 %n2, %i.05 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc, %n1 + br i1 %cmp, label %for.body, label %for.cond1.preheader + +for.body4: ; preds = %for.body4, %for.cond1.preheader + %j.03 = phi i64 [ %inc8, %for.body4 ], [ 0, %for.cond1.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ] + %sub5 = sub i64 %j.03, %n1 + %arrayidx6 = getelementptr inbounds i32* %A, i64 %sub5 + %0 = load i32* %arrayidx6, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc8 = add nsw i64 %j.03, 1 + %cmp2 = icmp ult i64 %inc8, %n2 + br i1 %cmp2, label %for.body4, label %for.end9 + +for.end9: ; preds = %for.body4, %for.cond1.preheader + ret void +} + + +;; for (long int i = 0; i < n1; i++) +;; A[-i + 2*n1] = ... +;; for (long int j = 0; j < n2; j++) +;; ... = A[-j + n1]; + +define void @symbolicrdiv4(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.cond1.preheader, label %for.body + +for.cond1.preheader: ; preds = %for.body, %entry + %cmp21 = icmp eq i64 %n2, 0 + br i1 %cmp21, label %for.end10, label %for.body4 + +for.body: ; preds = %for.body, %entry + %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %conv = trunc i64 %i.05 to i32 + %mul = shl i64 %n1, 1 + %add = sub i64 %mul, %i.05 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc, %n1 + br i1 %cmp, label %for.body, label %for.cond1.preheader + +for.body4: ; preds = %for.body4, %for.cond1.preheader + %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.cond1.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ] + %add6 = sub i64 %n1, %j.03 + %arrayidx7 = getelementptr inbounds i32* %A, i64 %add6 + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc9 = add nsw i64 %j.03, 1 + %cmp2 = icmp ult i64 %inc9, %n2 + br i1 %cmp2, label %for.body4, label %for.end10 + +for.end10: ; preds = %for.body4, %for.cond1.preheader + ret void +} + + +;; for (long int i = 0; i < n1; i++) +;; A[-i + n2] = ... +;; for (long int j = 0; j < n2; j++) +;; ... = A[-j + 2*n2]; + +define void @symbolicrdiv5(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.cond1.preheader, label %for.body + +for.cond1.preheader: ; preds = %for.body, %entry + %cmp21 = icmp eq i64 %n2, 0 + br i1 %cmp21, label %for.end10, label %for.body4 + +for.body: ; preds = %for.body, %entry + %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %conv = trunc i64 %i.05 to i32 + %add = sub i64 %n2, %i.05 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %inc = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc, %n1 + br i1 %cmp, label %for.body, label %for.cond1.preheader + +for.body4: ; preds = %for.body4, %for.cond1.preheader + %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.cond1.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ] + %mul = shl i64 %n2, 1 + %add6 = sub i64 %mul, %j.03 + %arrayidx7 = getelementptr inbounds i32* %A, i64 %add6 + %0 = load i32* %arrayidx7, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc9 = add nsw i64 %j.03, 1 + %cmp2 = icmp ult i64 %inc9, %n2 + br i1 %cmp2, label %for.body4, label %for.end10 + +for.end10: ; preds = %for.body4, %for.cond1.preheader + ret void +} + + +;; for (long int i = 0; i < n1; i++) +;; for (long int j = 0; j < n2; j++) +;; A[j -i + n2] = ... +;; ... = A[2*n2]; + +define void @symbolicrdiv6(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp { +entry: + %cmp4 = icmp eq i64 %n1, 0 + br i1 %cmp4, label %for.end7, label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc5, %entry + %B.addr.06 = phi i32* [ %B.addr.1.lcssa, %for.inc5 ], [ %B, %entry ] + %i.05 = phi i64 [ %inc6, %for.inc5 ], [ 0, %entry ] + %cmp21 = icmp eq i64 %n2, 0 + br i1 %cmp21, label %for.inc5, label %for.body3 + +for.body3: ; preds = %for.body3, %for.cond1.preheader + %j.03 = phi i64 [ %inc, %for.body3 ], [ 0, %for.cond1.preheader ] + %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.06, %for.cond1.preheader ] + %conv = trunc i64 %i.05 to i32 + %sub = sub nsw i64 %j.03, %i.05 + %add = add i64 %sub, %n2 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %n2, 1 + %arrayidx4 = getelementptr inbounds i32* %A, i64 %mul + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1 + store i32 %0, i32* %B.addr.12, align 4 + %inc = add nsw i64 %j.03, 1 + %cmp2 = icmp ult i64 %inc, %n2 + br i1 %cmp2, label %for.body3, label %for.inc5 + +for.inc5: ; preds = %for.body3, %for.cond1.preheader + %B.addr.1.lcssa = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ] + %inc6 = add nsw i64 %i.05, 1 + %cmp = icmp ult i64 %inc6, %n1 + br i1 %cmp, label %for.cond1.preheader, label %for.end7 + +for.end7: ; preds = %for.inc5, %entry + ret void +} diff --git a/test/Analysis/DependenceAnalysis/SymbolicSIV.ll b/test/Analysis/DependenceAnalysis/SymbolicSIV.ll new file mode 100644 index 0000000..ee2343f --- /dev/null +++ b/test/Analysis/DependenceAnalysis/SymbolicSIV.ll @@ -0,0 +1,330 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'SymbolicSIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long int i = 0; i < n; i++) +;; A[2*i + n] = ... +;; ... = A[3*i + 3*n]; + +define void @symbolicsiv0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %add = add i64 %mul, %n + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul14 = add i64 %i.03, %n + %add3 = mul i64 %mul14, 3 + %arrayidx4 = getelementptr inbounds i32* %A, i64 %add3 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long int i = 0; i < n; i++) +;; A[2*i + 5*n] = ... +;; ... = A[3*i + 2*n]; + +define void @symbolicsiv1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %mul1 = mul i64 %n, 5 + %add = add i64 %mul, %mul1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul2 = mul nsw i64 %i.03, 3 + %mul3 = shl i64 %n, 1 + %add4 = add i64 %mul2, %mul3 + %arrayidx5 = getelementptr inbounds i32* %A, i64 %add4 + %0 = load i32* %arrayidx5, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long int i = 0; i < n; i++) +;; A[2*i - n] = ... +;; ... = A[-i + 2*n]; + +define void @symbolicsiv2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = shl nsw i64 %i.03, 1 + %sub = sub i64 %mul, %n + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %mul2 = shl i64 %n, 1 + %add = sub i64 %mul2, %i.03 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long int i = 0; i < n; i++) +;; A[-2*i + n + 1] = ... +;; ... = A[i - 2*n]; + +define void @symbolicsiv3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -2 + %add = add i64 %mul, %n + %add1 = add i64 %add, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add1 + store i32 %conv, i32* %arrayidx, align 4 + %mul2 = shl i64 %n, 1 + %sub = sub i64 %i.03, %mul2 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long int i = 0; i < n; i++) +;; A[-2*i + 3*n] = ... +;; ... = A[-i + n]; + +define void @symbolicsiv4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -2 + %mul1 = mul i64 %n, 3 + %add = add i64 %mul, %mul1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %add2 = sub i64 %n, %i.03 + %arrayidx3 = getelementptr inbounds i32* %A, i64 %add2 + %0 = load i32* %arrayidx3, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long int i = 0; i < n; i++) +;; A[-2*i - 2*n] = ... +;; ... = A[-i - n]; + +define void @symbolicsiv5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul nsw i64 %i.03, -2 + %mul1 = shl i64 %n, 1 + %sub = sub i64 %mul, %mul1 + %arrayidx = getelementptr inbounds i32* %A, i64 %sub + store i32 %conv, i32* %arrayidx, align 4 + %sub2 = sub nsw i64 0, %i.03 + %sub3 = sub i64 %sub2, %n + %arrayidx4 = getelementptr inbounds i32* %A, i64 %sub3 + %0 = load i32* %arrayidx4, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; why doesn't SCEV package understand that n >= 0? +;;void weaktest(int *A, int *B, long unsigned n) +;; for (long unsigned i = 0; i < n; i++) +;; A[i + n + 1] = ... +;; ... = A[-i]; + +define void @weaktest(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %add = add i64 %i.03, %n + %add1 = add i64 %add, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add1 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 0, %i.03 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [*|<] splitable! +; CHECK: da analyze - split level = 1, iteration = ((0 smax (-1 + (-1 * %n))) /u 2)! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; void symbolicsiv6(int *A, int *B, long unsigned n, long unsigned N, long unsigned M) { +;; for (long int i = 0; i < n; i++) { +;; A[4*N*i + M] = i; +;; *B++ = A[4*N*i + 3*M + 1]; + +define void @symbolicsiv6(i32* %A, i32* %B, i64 %n, i64 %N, i64 %M) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ] + %conv = trunc i64 %i.03 to i32 + %mul = shl i64 %N, 2 + %mul1 = mul i64 %mul, %i.03 + %add = add i64 %mul1, %M + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul2 = shl i64 %N, 2 + %mul3 = mul i64 %mul2, %i.03 + %mul4 = mul i64 %M, 3 + %add5 = add i64 %mul3, %mul4 + %add6 = add i64 %add5, 1 + %arrayidx7 = getelementptr inbounds i32* %A, i64 %add6 + %0 = load i32* %arrayidx7, align 4 + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 +; CHECK: da analyze - none! + store i32 %0, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %exitcond = icmp ne i64 %inc, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +} + + +;; void symbolicsiv7(int *A, int *B, long unsigned n, long unsigned N, long unsigned M) { +;; for (long int i = 0; i < n; i++) { +;; A[2*N*i + M] = i; +;; *B++ = A[2*N*i - 3*M + 2]; + +define void @symbolicsiv7(i32* %A, i32* %B, i64 %n, i64 %N, i64 %M) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ] + %conv = trunc i64 %i.03 to i32 + %mul = shl i64 %N, 1 + %mul1 = mul i64 %mul, %i.03 + %add = add i64 %mul1, %M + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul2 = shl i64 %N, 1 + %mul3 = mul i64 %mul2, %i.03 + %0 = mul i64 %M, -3 + %sub = add i64 %mul3, %0 + %add5 = add i64 %sub, 2 + %arrayidx6 = getelementptr inbounds i32* %A, i64 %add5 + %1 = load i32* %arrayidx6, align 4 + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 +; CHECK: da analyze - flow [<>]! + store i32 %1, i32* %B.addr.02, align 4 + %inc = add nsw i64 %i.03, 1 + %exitcond = icmp ne i64 %inc, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +} diff --git a/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll new file mode 100644 index 0000000..343e8f4 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll @@ -0,0 +1,220 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'WeakCrossingSIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long unsigned i = 0; i < n; i++) +;; A[1 + n*i] = ... +;; ... = A[1 - n*i]; + +define void @weakcrossing0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul i64 %i.03, %n + %add = add i64 %mul, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %mul1 = mul i64 %i.03, %n + %sub = sub i64 1, %mul1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [0|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[n + i] = ... +;; ... = A[1 + n - i]; + +define void @weakcrossing1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %add = add i64 %i.03, %n + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %add1 = add i64 %n, 1 + %sub = sub i64 %add1, %i.03 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - flow [<>] splitable! +; CHECK: da analyze - split level = 1, iteration = 0! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < 3; i++) +;; A[i] = ... +;; ... = A[6 - i]; + +define void @weakcrossing2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 6, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 3 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 4; i++) +;; A[i] = ... +;; ... = A[6 - i]; + +define void @weakcrossing3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 6, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [0|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 4 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 10; i++) +;; A[i] = ... +;; ... = A[-6 - i]; + +define void @weakcrossing4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 -6, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 10 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[3*i] = ... +;; ... = A[5 - 3*i]; + +define void @weakcrossing5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul i64 %i.03, 3 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %0 = mul i64 %i.03, -3 + %sub = add i64 %0, 5 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub + %1 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %1, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < 4; i++) +;; A[i] = ... +;; ... = A[5 - i]; + +define void @weakcrossing6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 %i.02 + store i32 %conv, i32* %arrayidx, align 4 + %sub = sub i64 5, %i.02 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [<>] splitable! +; CHECK: da analyze - split level = 1, iteration = 2! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 4 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} diff --git a/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll b/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll new file mode 100644 index 0000000..a598716 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll @@ -0,0 +1,212 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'WeakZeroDstSIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long unsigned i = 0; i < 30; i++) +;; A[2*i + 10] = ... +;; ... = A[10]; + +define void @weakzerodst0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %add = add i64 %mul, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [p<=|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 30 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[n*i + 10] = ... +;; ... = A[10]; + +define void @weakzerodst1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul i64 %i.03, %n + %add = add i64 %mul, 10 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [p<=|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < 5; i++) +;; A[2*i] = ... +;; ... = A[10]; + +define void @weakzerodst2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 5 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 6; i++) +;; A[2*i] = ... +;; ... = A[10]; + +define void @weakzerodst3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [=>p|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 6 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 7; i++) +;; A[2*i] = ... +;; ... = A[10]; + +define void @weakzerodst4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 7 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 7; i++) +;; A[2*i] = ... +;; ... = A[-10]; + +define void @weakzerodst5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %mul = shl i64 %i.02, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 -10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 7 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[3*i] = ... +;; ... = A[10]; + +define void @weakzerodst6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %mul = mul i64 %i.03, 3 + %arrayidx = getelementptr inbounds i32* %A, i64 %mul + store i32 %conv, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 10 + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} diff --git a/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll b/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll new file mode 100644 index 0000000..fd4f462 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll @@ -0,0 +1,212 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'WeakZeroSrcSIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; for (long unsigned i = 0; i < 30; i++) +;; A[10] = ... +;; ... = A[2*i + 10]; + +define void @weakzerosrc0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %i.02, 1 + %add = add i64 %mul, 10 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [p<=|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 30 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[10] = ... +;; ... = A[n*i + 10]; + +define void @weakzerosrc1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = mul i64 %i.03, %n + %add = add i64 %mul, 10 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [p<=|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} + + +;; for (long unsigned i = 0; i < 5; i++) +;; A[10] = ... +;; ... = A[2*i]; + +define void @weakzerosrc2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %i.02, 1 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 5 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 6; i++) +;; A[10] = ... +;; ... = A[2*i]; + +define void @weakzerosrc3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %i.02, 1 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [=>p|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 6 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 7; i++) +;; A[10] = ... +;; ... = A[2*i]; + +define void @weakzerosrc4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %i.02, 1 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow [*|<]! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 7 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < 7; i++) +;; A[-10] = ... +;; ... = A[2*i]; + +define void @weakzerosrc5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ] + %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ] + %conv = trunc i64 %i.02 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 -10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = shl i64 %i.02, 1 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1 + store i32 %0, i32* %B.addr.01, align 4 + %inc = add i64 %i.02, 1 + %cmp = icmp ult i64 %inc, 7 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body + ret void +} + + +;; for (long unsigned i = 0; i < n; i++) +;; A[10] = ... +;; ... = A[3*i]; + +define void @weakzerosrc6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %cmp1 = icmp eq i64 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ] + %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ] + %conv = trunc i64 %i.03 to i32 + %arrayidx = getelementptr inbounds i32* %A, i64 10 + store i32 %conv, i32* %arrayidx, align 4 + %mul = mul i64 %i.03, 3 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1 + store i32 %0, i32* %B.addr.02, align 4 + %inc = add i64 %i.03, 1 + %cmp = icmp ult i64 %inc, %n + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %for.body, %entry + ret void +} diff --git a/test/Analysis/DependenceAnalysis/ZIV.ll b/test/Analysis/DependenceAnalysis/ZIV.ll new file mode 100644 index 0000000..42b2389 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/ZIV.ll @@ -0,0 +1,53 @@ +; RUN: opt < %s -analyze -basicaa -da | FileCheck %s + +; ModuleID = 'ZIV.bc' +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.6.0" + + +;; A[n + 1] = ... +;; ... = A[1 + n]; + +define void @z0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %add = add i64 %n, 1 + %arrayidx = getelementptr inbounds i32* %A, i64 %add + store i32 0, i32* %arrayidx, align 4 + %add1 = add i64 %n, 1 + %arrayidx2 = getelementptr inbounds i32* %A, i64 %add1 + %0 = load i32* %arrayidx2, align 4 +; CHECK: da analyze - consistent flow! + store i32 %0, i32* %B, align 4 + ret void +} + + +;; A[n] = ... +;; ... = A[n + 1]; + +define void @z1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp { +entry: + %arrayidx = getelementptr inbounds i32* %A, i64 %n + store i32 0, i32* %arrayidx, align 4 + %add = add i64 %n, 1 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %add + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - none! + store i32 %0, i32* %B, align 4 + ret void +} + + +;; A[n] = ... +;; ... = A[m]; + +define void @z2(i32* %A, i32* %B, i64 %n, i64 %m) nounwind uwtable ssp { +entry: + %arrayidx = getelementptr inbounds i32* %A, i64 %n + store i32 0, i32* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds i32* %A, i64 %m + %0 = load i32* %arrayidx1, align 4 +; CHECK: da analyze - flow! + store i32 %0, i32* %B, align 4 + ret void +} diff --git a/test/Analysis/DependenceAnalysis/lit.local.cfg b/test/Analysis/DependenceAnalysis/lit.local.cfg new file mode 100644 index 0000000..c6106e4 --- /dev/null +++ b/test/Analysis/DependenceAnalysis/lit.local.cfg @@ -0,0 +1 @@ +config.suffixes = ['.ll'] |
