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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2011-07-28 01:26:50 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2011-07-28 01:26:50 +0000 |
| commit | 93fa4766c21062c06a274d09169e15779c06603b (patch) | |
| tree | a4bcb9b478e893489761189150c96b6efe878a27 /lib | |
| parent | 735bccda6583af5b1f670d11f5637634d0e9f603 (diff) | |
| download | external_llvm-93fa4766c21062c06a274d09169e15779c06603b.zip external_llvm-93fa4766c21062c06a274d09169e15779c06603b.tar.gz external_llvm-93fa4766c21062c06a274d09169e15779c06603b.tar.bz2 | |
Add patterns to generate copies for extract_subvector instead of
using vextractf128. This will reduce the number of issued instruction
for several avx codes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136323 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index a3e8c40..db1ab52 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -5452,6 +5452,18 @@ def : Pat<(vextractf128_extract:$ext VR256:$src1, (i32 imm)), (v32i8 VR256:$src1), (EXTRACT_get_vextractf128_imm VR128:$ext)))>; +// Special COPY patterns +def : Pat<(v4i32 (extract_subvector (v8i32 VR256:$src), (i32 0))), + (v4i32 (EXTRACT_SUBREG (v8i32 VR256:$src), sub_xmm))>; +def : Pat<(v4f32 (extract_subvector (v8f32 VR256:$src), (i32 0))), + (v4f32 (EXTRACT_SUBREG (v8f32 VR256:$src), sub_xmm))>; + +def : Pat<(v2i64 (extract_subvector (v4i64 VR256:$src), (i32 0))), + (v2i64 (EXTRACT_SUBREG (v4i64 VR256:$src), sub_xmm))>; +def : Pat<(v2f64 (extract_subvector (v4f64 VR256:$src), (i32 0))), + (v2f64 (EXTRACT_SUBREG (v4f64 VR256:$src), sub_xmm))>; + + //===----------------------------------------------------------------------===// // VMASKMOV - Conditional SIMD Packed Loads and Stores // |