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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-21 08:56:24 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-21 08:56:24 +0000 |
| commit | cdbec6251082894723b6c368357bea17bc2f8714 (patch) | |
| tree | 0dd23eab9b70299a67a6b8eca9adb86d20384bbf /llvm/lib | |
| parent | f97f6267309344691557460d46a1f78c4333df43 (diff) | |
| download | bcm5719-llvm-cdbec6251082894723b6c368357bea17bc2f8714.tar.gz bcm5719-llvm-cdbec6251082894723b6c368357bea17bc2f8714.zip | |
Add AVX only vzeroall and vzeroupper instructions
llvm-svn: 109002
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrSSE.td | 6 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86MCCodeEmitter.cpp | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td index 76bc0ff4825..121406c47f8 100644 --- a/llvm/lib/Target/X86/X86InstrSSE.td +++ b/llvm/lib/Target/X86/X86InstrSSE.td @@ -5076,4 +5076,10 @@ def VPERM2F128rm : AVXAIi8<0x06, MRMSrcMem, (outs VR256:$dst), "vperm2f128\t{$src3, $src2, $src1, $dst|$dst, $src1, $src2, $src3}", []>, VEX_4V; +// Zero All YMM registers +def VZEROALL : I<0x77, RawFrm, (outs), (ins), "vzeroall", []>, VEX, VEX_L; + +// Zero Upper bits of YMM registers +def VZEROUPPER : I<0x77, RawFrm, (outs), (ins), "vzeroupper", []>, VEX; + } // isAsmParserOnly diff --git a/llvm/lib/Target/X86/X86MCCodeEmitter.cpp b/llvm/lib/Target/X86/X86MCCodeEmitter.cpp index 230c9d04180..b39fce1f79c 100644 --- a/llvm/lib/Target/X86/X86MCCodeEmitter.cpp +++ b/llvm/lib/Target/X86/X86MCCodeEmitter.cpp @@ -514,7 +514,10 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, VEX_X = 0x0; } break; - default: // MRMDestReg, MRM0r-MRM7r + default: // MRMDestReg, MRM0r-MRM7r, RawFrm + if (!MI.getNumOperands()) + break; + if (MI.getOperand(CurOp).isReg() && X86InstrInfo::isX86_64ExtendedReg(MI.getOperand(CurOp).getReg())) VEX_B = 0; @@ -530,7 +533,6 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte, VEX_R = 0x0; } break; - assert(0 && "Not implemented!"); } // Emit segment override opcode prefix as needed. |
