diff options
| 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 | 0ff8a4fa35db853dfc3dbe54535aa326d8e742a2 (patch) | |
| tree | 5d0eeb94821b2eb84823deb1f98c999f5e9b2be3 /test | |
| parent | ca6fd009ad7905f39ce66f16164c652337e14c61 (diff) | |
| download | llvm-0ff8a4fa35db853dfc3dbe54535aa326d8e742a2.tar.gz llvm-0ff8a4fa35db853dfc3dbe54535aa326d8e742a2.tar.bz2 llvm-0ff8a4fa35db853dfc3dbe54535aa326d8e742a2.tar.xz | |
Instcombile optimization: extractelement(cast) -> cast(extractelement)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128683 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/ExtractCast.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/ExtractCast.ll b/test/Transforms/InstCombine/ExtractCast.ll new file mode 100644 index 0000000000..5ebbefd97b --- /dev/null +++ b/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 +} + |