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| author | Craig Topper <craig.topper@gmail.com> | 2012-05-04 04:44:49 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2012-05-04 04:44:49 +0000 |
| commit | f3640d7ec1373f964fb998138e54d81cc21c7a22 (patch) | |
| tree | 17937b3ac61847d48d234bc0ef82b0075ea1efd0 /test | |
| parent | 98bda3dfefcb08e6ce81fa9545b05eb433cd5b87 (diff) | |
Allow v16i16 and v32i8 shuffles to be rewritten as narrower shuffles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156156 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/avx-shuffle.ll | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/test/CodeGen/X86/avx-shuffle.ll b/test/CodeGen/X86/avx-shuffle.ll index 16c447be17..e341aec94c 100644 --- a/test/CodeGen/X86/avx-shuffle.ll +++ b/test/CodeGen/X86/avx-shuffle.ll @@ -202,3 +202,11 @@ define <4 x i64> @blend4(<4 x i64> %a, <4 x i64> %b) nounwind alwaysinline { %t = shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 7> ret <4 x i64> %t } + +; CHECK: narrow +; CHECK: vpermilps +; CHECK: ret +define <16 x i16> @narrow(<16 x i16> %a) nounwind alwaysinline { + %t = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 1, i32 6, i32 7, i32 4, i32 5, i32 10, i32 11, i32 8, i32 undef, i32 14, i32 15, i32 undef, i32 undef> + ret <16 x i16> %t +} |