From cd749a9c07f1de2fb8affde90537efa4bc3e7c54 Mon Sep 17 00:00:00 2001 From: rdivacky Date: Wed, 14 Oct 2009 17:57:32 +0000 Subject: Update llvm to r84119. --- test/Analysis/LoopDependenceAnalysis/alias.ll | 44 ++++++++ test/Analysis/LoopDependenceAnalysis/siv-strong.ll | 110 +++++++++++++++++++ .../LoopDependenceAnalysis/siv-weak-crossing.ll | 118 +++++++++++++++++++++ .../LoopDependenceAnalysis/siv-weak-zero.ll | 56 ++++++++++ test/Analysis/LoopDependenceAnalysis/ziv.ll | 63 +++++++++++ 5 files changed, 391 insertions(+) create mode 100644 test/Analysis/LoopDependenceAnalysis/alias.ll create mode 100644 test/Analysis/LoopDependenceAnalysis/siv-strong.ll create mode 100644 test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll create mode 100644 test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll create mode 100644 test/Analysis/LoopDependenceAnalysis/ziv.ll (limited to 'test/Analysis/LoopDependenceAnalysis') diff --git a/test/Analysis/LoopDependenceAnalysis/alias.ll b/test/Analysis/LoopDependenceAnalysis/alias.ll new file mode 100644 index 0000000..a5f504b --- /dev/null +++ b/test/Analysis/LoopDependenceAnalysis/alias.ll @@ -0,0 +1,44 @@ +; RUN: opt < %s -disable-output -analyze -lda | FileCheck %s + +;; x[5] = x[6] // with x being a pointer passed as argument + +define void @f1(i32* nocapture %xptr) nounwind { +entry: + %x.ld.addr = getelementptr i32* %xptr, i64 6 + %x.st.addr = getelementptr i32* %xptr, i64 5 + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x = load i32* %x.ld.addr + store i32 %x, i32* %x.st.addr +; CHECK: 0,1: dep + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; x[5] = x[6] // with x being an array on the stack + +define void @foo(...) nounwind { +entry: + %xptr = alloca [256 x i32], align 4 + %x.ld.addr = getelementptr [256 x i32]* %xptr, i64 0, i64 6 + %x.st.addr = getelementptr [256 x i32]* %xptr, i64 0, i64 5 + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x = load i32* %x.ld.addr + store i32 %x, i32* %x.st.addr +; CHECK: 0,1: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} diff --git a/test/Analysis/LoopDependenceAnalysis/siv-strong.ll b/test/Analysis/LoopDependenceAnalysis/siv-strong.ll new file mode 100644 index 0000000..3270895 --- /dev/null +++ b/test/Analysis/LoopDependenceAnalysis/siv-strong.ll @@ -0,0 +1,110 @@ +; RUN: opt < %s -disable-output -analyze -lda | FileCheck %s + +@x = common global [256 x i32] zeroinitializer, align 4 +@y = common global [256 x i32] zeroinitializer, align 4 + +;; for (i = 0; i < 256; i++) +;; x[i] = x[i] + y[i] + +define void @f1(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %y.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %x = load i32* %x.addr ; 0 + %y = load i32* %y.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; for (i = 0; i < 256; i++) +;; x[i+1] = x[i] + y[i] + +define void @f2(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %i.next = add i64 %i, 1 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.next + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; for (i = 0; i < 10; i++) +;; x[i+20] = x[i] + y[i] + +define void @f3(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %i.20 = add i64 %i, 20 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.20 + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 10 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; for (i = 0; i < 10; i++) +;; x[10*i+1] = x[10*i] + y[i] + +define void @f4(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %i.10 = mul i64 %i, 10 + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i.10 + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.10 + %i.10.1 = add i64 %i.10, 1 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.10.1 + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 10 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} diff --git a/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll b/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll new file mode 100644 index 0000000..3d9f258 --- /dev/null +++ b/test/Analysis/LoopDependenceAnalysis/siv-weak-crossing.ll @@ -0,0 +1,118 @@ +; RUN: opt < %s -disable-output -analyze -lda | FileCheck %s + +@x = common global [256 x i32] zeroinitializer, align 4 +@y = common global [256 x i32] zeroinitializer, align 4 + +;; for (i = 0; i < 256; i++) +;; x[i] = x[255 - i] + y[i] + +define void @f1(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %i.255 = sub i64 255, %i + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.255 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; for (i = 0; i < 100; i++) +;; x[i] = x[255 - i] + y[i] + +define void @f2(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %i.255 = sub i64 255, %i + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.255 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 100 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; // the first iteration (i=0) leads to an out-of-bounds access of x. as the +;; // result of this access is undefined, _any_ dependence result is safe. +;; for (i = 0; i < 256; i++) +;; x[i] = x[256 - i] + y[i] + +define void @f3(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %i.256 = sub i64 0, %i + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x.ld.addr = getelementptr [256 x i32]* @x, i64 1, i64 %i.256 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; // slightly contrived but valid IR for the following loop, where all +;; // accesses in all iterations are within bounds. while this example's first +;; // (ZIV-)subscript is (0, 1), accesses are dependent. +;; for (i = 1; i < 256; i++) +;; x[i] = x[256 - i] + y[i] + +define void @f4(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %i.1 = add i64 1, %i + %i.256 = sub i64 -1, %i + %y.ld.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i.1 + %x.ld.addr = getelementptr [256 x i32]* @x, i64 1, i64 %i.256 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i.1 + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.ld.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.st.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} diff --git a/test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll b/test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll new file mode 100644 index 0000000..4433138 --- /dev/null +++ b/test/Analysis/LoopDependenceAnalysis/siv-weak-zero.ll @@ -0,0 +1,56 @@ +; RUN: opt < %s -disable-output -analyze -lda | FileCheck %s + +@x = common global [256 x i32] zeroinitializer, align 4 +@y = common global [256 x i32] zeroinitializer, align 4 + +;; for (i = 0; i < 256; i++) +;; x[i] = x[42] + y[i] + +define void @f1(...) nounwind { +entry: + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 42 + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %y.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; for (i = 0; i < 250; i++) +;; x[i] = x[255] + y[i] + +define void @f2(...) nounwind { +entry: + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 255 + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x.addr = getelementptr [256 x i32]* @x, i64 0, i64 %i + %y.addr = getelementptr [256 x i32]* @y, i64 0, i64 %i + %x = load i32* %x.ld.addr ; 0 + %y = load i32* %y.addr ; 1 + %r = add i32 %y, %x + store i32 %r, i32* %x.addr ; 2 +; CHECK: 0,2: dep +; CHECK: 1,2: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 250 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} diff --git a/test/Analysis/LoopDependenceAnalysis/ziv.ll b/test/Analysis/LoopDependenceAnalysis/ziv.ll new file mode 100644 index 0000000..0a93762 --- /dev/null +++ b/test/Analysis/LoopDependenceAnalysis/ziv.ll @@ -0,0 +1,63 @@ +; RUN: opt < %s -disable-output -analyze -lda | FileCheck %s + +@x = common global [256 x i32] zeroinitializer, align 4 + +;; x[5] = x[6] + +define void @f1(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x = load i32* getelementptr ([256 x i32]* @x, i32 0, i64 6) + store i32 %x, i32* getelementptr ([256 x i32]* @x, i32 0, i64 5) +; CHECK: 0,1: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; x[c] = x[c+1] // with c being a loop-invariant constant + +define void @f2(i64 %c0) nounwind { +entry: + %c1 = add i64 %c0, 1 + %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %c0 + %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %c1 + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x = load i32* %x.ld.addr + store i32 %x, i32* %x.st.addr +; CHECK: 0,1: ind + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} + +;; x[6] = x[6] + +define void @f3(...) nounwind { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %x = load i32* getelementptr ([256 x i32]* @x, i32 0, i64 6) + store i32 %x, i32* getelementptr ([256 x i32]* @x, i32 0, i64 6) +; CHECK: 0,1: dep + %i.next = add i64 %i, 1 + %exitcond = icmp eq i64 %i.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} -- cgit v1.1