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-rw-r--r--test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll186
1 files changed, 123 insertions, 63 deletions
diff --git a/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
index 343e8f4..8b2e43f 100644
--- a/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
+++ b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
@@ -5,18 +5,28 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
target triple = "x86_64-apple-macosx10.6.0"
-;; for (long unsigned i = 0; i < n; i++)
-;; A[1 + n*i] = ...
-;; ... = A[1 - n*i];
+;; for (long unsigned i = 0; i < n; i++) {
+;; A[1 + n*i] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.end, label %for.body.preheader
-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 ]
+for.body.preheader: ; preds = %entry
+ br label %for.body
+
+; CHECK: da analyze - none!
+; CHECK: da analyze - flow [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+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 = mul i64 %i.03, %n
%add = add i64 %mul, 1
@@ -26,30 +36,43 @@ for.body: ; preds = %for.body, %entry
%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
+ %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.body, %entry
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long unsigned i = 0; i < n; i++)
-;; A[n + i] = ...
-;; ... = A[1 + n - i];
+;; for (long unsigned i = 0; i < n; i++) {
+;; A[n + i] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - none!
+; CHECK: da analyze - flow [<>] splitable!
+; CHECK: da analyze - split level = 1, iteration = 0!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body.preheader: ; preds = %entry
+ br 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 ]
+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
%add = add i64 %i.03, %n
%arrayidx = getelementptr inbounds i32* %A, i64 %add
@@ -58,28 +81,36 @@ for.body: ; preds = %for.body, %entry
%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
+ %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.body, %entry
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long unsigned i = 0; i < 3; i++)
-;; A[i] = ...
-;; ... = A[6 - i];
+;; for (long unsigned i = 0; i < 3; i++) {
+;; A[i] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
@@ -88,27 +119,33 @@ for.body: ; preds = %for.body, %entry
%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
+ %exitcond = icmp ne i64 %inc, 3
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < 4; i++) {
+;; A[i] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - flow [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
@@ -117,27 +154,33 @@ for.body: ; preds = %for.body, %entry
%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
+ %exitcond = icmp ne i64 %inc, 4
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < 10; i++) {
+;; A[i] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
@@ -146,30 +189,39 @@ for.body: ; preds = %for.body, %entry
%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
+ %exitcond = icmp ne i64 %inc, 10
+ br i1 %exitcond, 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];
+;; for (long unsigned i = 0; i < n; i++) {
+;; A[3*i] = i;
+;; *B++ = 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
+ br i1 %cmp1, label %for.end, label %for.body.preheader
-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 ]
+; CHECK: da analyze - none!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+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 = mul i64 %i.03, 3
%arrayidx = getelementptr inbounds i32* %A, i64 %mul
@@ -178,27 +230,37 @@ for.body: ; preds = %for.body, %entry
%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
+ %exitcond = icmp ne i64 %inc, %n
+ br i1 %exitcond, label %for.body, label %for.end.loopexit
-for.end: ; preds = %for.body, %entry
+for.end.loopexit: ; preds = %for.body
+ br label %for.end
+
+for.end: ; preds = %for.end.loopexit, %entry
ret void
}
-;; for (long unsigned i = 0; i < 4; i++)
-;; A[i] = ...
-;; ... = A[5 - i];
+;; for (long unsigned i = 0; i < 4; i++) {
+;; A[i] = i;
+;; *B++ = 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
+; CHECK: da analyze - none!
+; CHECK: da analyze - flow [<>] splitable!
+; CHECK: da analyze - split level = 1, iteration = 2!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+
+for.body: ; preds = %entry, %for.body
%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
@@ -207,13 +269,11 @@ for.body: ; preds = %for.body, %entry
%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
+ %exitcond = icmp ne i64 %inc, 4
+ br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.body
ret void
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