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| author | Nadav Rotem <nadav.rotem@intel.com> | 2012-01-02 08:05:46 +0000 |
|---|---|---|
| committer | Nadav Rotem <nadav.rotem@intel.com> | 2012-01-02 08:05:46 +0000 |
| commit | a46f35d3d65425af5eaaaf906fca240a33d6c362 (patch) | |
| tree | cbe1de0c9521b4a7bef38d6733365f4c72ab619b /test/CodeGen/X86/sse41-blend.ll | |
| parent | 47f79bb58e42f1a08a7f388b8b1596ded7d49bbb (diff) | |
| download | llvm-a46f35d3d65425af5eaaaf906fca240a33d6c362.tar.gz llvm-a46f35d3d65425af5eaaaf906fca240a33d6c362.tar.bz2 llvm-a46f35d3d65425af5eaaaf906fca240a33d6c362.tar.xz | |
Optimize the sequence blend(sign_extend(x)) to blend(shl(x)) since SSE blend instructions only look at the highest bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147426 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/sse41-blend.ll')
| -rw-r--r-- | test/CodeGen/X86/sse41-blend.ll | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/CodeGen/X86/sse41-blend.ll b/test/CodeGen/X86/sse41-blend.ll index 78604a0e96..0a71dd0d04 100644 --- a/test/CodeGen/X86/sse41-blend.ll +++ b/test/CodeGen/X86/sse41-blend.ll @@ -36,6 +36,7 @@ define <4 x i32> @vsel_i32(<4 x i32> %v1, <4 x i32> %v2) { ;CHECK: vsel_double +;CHECK-NOT: sra ;CHECK: blendvpd ;CHECK: ret define <4 x double> @vsel_double(<4 x double> %v1, <4 x double> %v2) { @@ -54,6 +55,7 @@ define <4 x i64> @vsel_i64(<4 x i64> %v1, <4 x i64> %v2) { ;CHECK: vsel_i8 +;CHECK-NOT: sra ;CHECK: pblendvb ;CHECK: ret define <16 x i8> @vsel_i8(<16 x i8> %v1, <16 x i8> %v2) { @@ -65,6 +67,7 @@ define <16 x i8> @vsel_i8(<16 x i8> %v1, <16 x i8> %v2) { ; CHECK: A define <2 x double> @A(<2 x double> %x, <2 x double> %y) { ; CHECK: cmplepd + ; CHECK-NOT: sra ; CHECK: blendvpd %max_is_x = fcmp oge <2 x double> %x, %y %max = select <2 x i1> %max_is_x, <2 x double> %x, <2 x double> %y @@ -74,6 +77,7 @@ define <2 x double> @A(<2 x double> %x, <2 x double> %y) { ; CHECK: B define <2 x double> @B(<2 x double> %x, <2 x double> %y) { ; CHECK: cmpnlepd + ; CHECK-NOT: sra ; CHECK: blendvpd %min_is_x = fcmp ult <2 x double> %x, %y %min = select <2 x i1> %min_is_x, <2 x double> %x, <2 x double> %y |