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| author | Nadav Rotem <nadav.rotem@intel.com> | 2011-03-31 22:57:29 +0000 |
|---|---|---|
| committer | Nadav Rotem <nadav.rotem@intel.com> | 2011-03-31 22:57:29 +0000 |
| commit | d74b72b8a9cf76fae395110218cf06f8ae57c04f (patch) | |
| tree | dab342e584fd7f3f9e4377c0f818fe3ebb01f312 /llvm/test/Transforms | |
| parent | ff51d4e559a4777d79d6ab7d1c7e515de6f313a8 (diff) | |
| download | bcm5719-llvm-d74b72b8a9cf76fae395110218cf06f8ae57c04f.tar.gz bcm5719-llvm-d74b72b8a9cf76fae395110218cf06f8ae57c04f.zip | |
Instcombile optimization: extractelement(cast) -> cast(extractelement)
llvm-svn: 128683
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/ExtractCast.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/ExtractCast.ll b/llvm/test/Transforms/InstCombine/ExtractCast.ll new file mode 100644 index 00000000000..5ebbefd97b3 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/ExtractCast.ll @@ -0,0 +1,27 @@ +; RUN: opt < %s -instcombine -S -o - | FileCheck %s + +; CHECK: @a +define i32 @a(<4 x i64> %I) { +entry: +; CHECK-NOT: trunc <4 x i64> + %J = trunc <4 x i64> %I to <4 x i32> + %K = extractelement <4 x i32> %J, i32 3 +; CHECK: extractelement <4 x i64> +; CHECK: trunc i64 +; CHECK: ret + ret i32 %K +} + + +; CHECK: @b +define i32 @b(<4 x float> %I) { +entry: +; CHECK-NOT: fptosi <4 x float> + %J = fptosi <4 x float> %I to <4 x i32> + %K = extractelement <4 x i32> %J, i32 3 +; CHECK: extractelement <4 x float> +; CHECK: fptosi float +; CHECK: ret + ret i32 %K +} + |
