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| author | Craig Topper <craig.topper@gmail.com> | 2017-01-07 22:20:34 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2017-01-07 22:20:34 +0000 |
| commit | a74e3088dfdc3bd0242dcfb3712a3eeea67ad150 (patch) | |
| tree | 81f6e087e3b89fd3b3456e79ead8fb7b135c9ddf /llvm/lib/Target/X86 | |
| parent | 2d02d4926be43b55856efd77d7d3e60c17ce5c07 (diff) | |
| download | bcm5719-llvm-a74e3088dfdc3bd0242dcfb3712a3eeea67ad150.tar.gz bcm5719-llvm-a74e3088dfdc3bd0242dcfb3712a3eeea67ad150.zip | |
[AVX-512] Remove patterns from the other VBLENDM instructions. They are all redundant with masked move instructions.
We should probably teach the two address instruction pass to turn masked moves into BLENDM when its beneficial to the register allocator.
llvm-svn: 291371
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrAVX512.td | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/llvm/lib/Target/X86/X86InstrAVX512.td b/llvm/lib/Target/X86/X86InstrAVX512.td index 1e894025c2d..236c9ca6998 100644 --- a/llvm/lib/Target/X86/X86InstrAVX512.td +++ b/llvm/lib/Target/X86/X86InstrAVX512.td @@ -1485,8 +1485,7 @@ defm VPERMT2PD : avx512_perm_t_sizes<0x7F, "vpermt2pd", // AVX-512 - BLEND using mask // multiclass avx512_blendmask<bits<8> opc, string OpcodeStr, X86VectorVTInfo _> { - let ExeDomain = _.ExeDomain in { - let hasSideEffects = 0 in + let ExeDomain = _.ExeDomain, hasSideEffects = 0 in { def rr : AVX5128I<opc, MRMSrcReg, (outs _.RC:$dst), (ins _.RC:$src1, _.RC:$src2), !strconcat(OpcodeStr, @@ -1496,16 +1495,13 @@ multiclass avx512_blendmask<bits<8> opc, string OpcodeStr, X86VectorVTInfo _> { (ins _.KRCWM:$mask, _.RC:$src1, _.RC:$src2), !strconcat(OpcodeStr, "\t{$src2, $src1, ${dst} {${mask}}|${dst} {${mask}}, $src1, $src2}"), - [(set _.RC:$dst, (vselect _.KRCWM:$mask, - (_.VT _.RC:$src2), - (_.VT _.RC:$src1)))]>, EVEX_4V, EVEX_K; - let hasSideEffects = 0 in + []>, EVEX_4V, EVEX_K; def rrkz : AVX5128I<opc, MRMSrcReg, (outs _.RC:$dst), (ins _.KRCWM:$mask, _.RC:$src1, _.RC:$src2), !strconcat(OpcodeStr, "\t{$src2, $src1, ${dst} {${mask}} {z}|${dst} {${mask}} {z}, $src1, $src2}"), []>, EVEX_4V, EVEX_KZ; - let mayLoad = 1, hasSideEffects = 0 in + let mayLoad = 1 in { def rm : AVX5128I<opc, MRMSrcMem, (outs _.RC:$dst), (ins _.RC:$src1, _.MemOp:$src2), !strconcat(OpcodeStr, @@ -1515,17 +1511,14 @@ multiclass avx512_blendmask<bits<8> opc, string OpcodeStr, X86VectorVTInfo _> { (ins _.KRCWM:$mask, _.RC:$src1, _.MemOp:$src2), !strconcat(OpcodeStr, "\t{$src2, $src1, ${dst} {${mask}}|${dst} {${mask}}, $src1, $src2}"), - [(set _.RC:$dst, (vselect _.KRCWM:$mask, - (_.VT (bitconvert (_.LdFrag addr:$src2))), - (_.VT _.RC:$src1)))]>, - EVEX_4V, EVEX_K, EVEX_CD8<_.EltSize, CD8VF>; - let mayLoad = 1, hasSideEffects = 0 in + []>, EVEX_4V, EVEX_K, EVEX_CD8<_.EltSize, CD8VF>; def rmkz : AVX5128I<opc, MRMSrcMem, (outs _.RC:$dst), (ins _.KRCWM:$mask, _.RC:$src1, _.MemOp:$src2), !strconcat(OpcodeStr, "\t{$src2, $src1, ${dst} {${mask}} {z}|${dst} {${mask}} {z}, $src1, $src2}"), []>, EVEX_4V, EVEX_KZ, EVEX_CD8<_.EltSize, CD8VF>; } + } } multiclass avx512_blendmask_rmb<bits<8> opc, string OpcodeStr, X86VectorVTInfo _> { |
