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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2011-08-17 22:12:20 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2011-08-17 22:12:20 +0000 |
| commit | 1a87fcb9ba5189dc1702140eb3e152d6aa1d66e5 (patch) | |
| tree | 9401cb99518c56036188c91a74e5fd50340d2b5a /llvm/test/CodeGen/X86/avx-shift.ll | |
| parent | 5500ef27be0b033bef6bd0703be4807d61df0f70 (diff) | |
| download | bcm5719-llvm-1a87fcb9ba5189dc1702140eb3e152d6aa1d66e5.tar.gz bcm5719-llvm-1a87fcb9ba5189dc1702140eb3e152d6aa1d66e5.zip | |
Fix PR10688. Add support for spliting 256-bit vector shifts when the
shift amount is variable
llvm-svn: 137885
Diffstat (limited to 'llvm/test/CodeGen/X86/avx-shift.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/avx-shift.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/avx-shift.ll b/llvm/test/CodeGen/X86/avx-shift.ll index 791194fc1c7..3ea39a2358e 100644 --- a/llvm/test/CodeGen/X86/avx-shift.ll +++ b/llvm/test/CodeGen/X86/avx-shift.ll @@ -62,3 +62,14 @@ define <16 x i16> @vshift07(<16 x i16> %a) nounwind readnone { ret <16 x i16> %s } +;;; Support variable shifts +; CHECK: _vshift08 +; CHECK: vextractf128 $1 +; CHECK: vpslld $23 +; CHECK: vextractf128 $1 +; CHECK: vpslld $23 +define <8 x i32> @vshift08(<8 x i32> %a) nounwind { + %bitop = shl <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>, %a + ret <8 x i32> %bitop +} + |
