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| author | Ed Schouten <ed@FreeBSD.org> | 2009-06-02 17:52:33 +0000 |
|---|---|---|
| committer | Ed Schouten <ed@FreeBSD.org> | 2009-06-02 17:52:33 +0000 |
| commit | 009b1c42aa6266385f2c37e227516b24077e6dd7 (patch) | |
| tree | 64ba909838c23261cace781ece27d106134ea451 /test/Transforms/LoopStrengthReduce/variable_stride.ll | |
| download | src-009b1c42aa6266385f2c37e227516b24077e6dd7.tar.gz src-009b1c42aa6266385f2c37e227516b24077e6dd7.zip | |
Import LLVM, at r72732.vendor/llvm/llvm-r72732
Notes
Notes:
svn path=/vendor/llvm/dist/; revision=193323
svn path=/vendor/llvm/llvm-r72732/; revision=193324; tag=vendor/llvm/llvm-r72732
Diffstat (limited to 'test/Transforms/LoopStrengthReduce/variable_stride.ll')
| -rw-r--r-- | test/Transforms/LoopStrengthReduce/variable_stride.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/variable_stride.ll b/test/Transforms/LoopStrengthReduce/variable_stride.ll new file mode 100644 index 000000000000..90d3947101ff --- /dev/null +++ b/test/Transforms/LoopStrengthReduce/variable_stride.ll @@ -0,0 +1,18 @@ +; Check that variable strides are reduced to adds instead of multiplies. +; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | not grep mul + +declare i1 @pred(i32) + +define void @test([10000 x i32]* %P, i32 %STRIDE) { +; <label>:0 + br label %Loop +Loop: ; preds = %Loop, %0 + %INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2] + %Idx = mul i32 %INDVAR, %STRIDE ; <i32> [#uses=1] + %cond = call i1 @pred( i32 %Idx ) ; <i1> [#uses=1] + %INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1] + br i1 %cond, label %Loop, label %Out +Out: ; preds = %Loop + ret void +} + |