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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 | 76bc28bac6625b4eaf585a0198f44e642251aed9 (patch) | |
| tree | 5b44010c8e233c6b5c44bb515afda769ef44039d /llvm/lib | |
| parent | 3fb0b635bd41ede64765d3cc2bd99ee3f82cc0c0 (diff) | |
| download | bcm5719-llvm-76bc28bac6625b4eaf585a0198f44e642251aed9.tar.gz bcm5719-llvm-76bc28bac6625b4eaf585a0198f44e642251aed9.zip | |
Add patterns to generate copies for extract_subvector instead of
using vextractf128. This will reduce the number of issued instruction
for several avx codes.
llvm-svn: 136323
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrSSE.td | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td index a3e8c4065d4..db1ab527f4f 100644 --- a/llvm/lib/Target/X86/X86InstrSSE.td +++ b/llvm/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 // |
