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Define AVX 128-bit pattern versions of SET0PS/PD.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110937 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2010-08-12 18:20:59 +00:00
parent a825a634be
commit 6da9cee0f1
2 changed files with 18 additions and 6 deletions
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17
lib/Target/X86/X86InstrSSE.td
View File

@ -2186,12 +2186,21 @@ def V_SET0PI : PDI<0xEF, MRMInitReg, (outs VR128:$dst), (ins), "",
[(set VR128:$dst, (v4i32 immAllZerosV))]>;
}
// The same as done above but for AVX. The 128-bit versions are the
// same, but re-encoded. The 256-bit does not support PI version.
let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1,
isCodeGenOnly = 1, Predicates = [HasAVX] in {
def V_SET0PSY : PSI<0x57, MRMInitReg, (outs VR256:$dst), (ins), "",
[(set VR256:$dst, (v8f32 immAllZerosV))]>, VEX_4V;
def V_SET0PDY : PDI<0x57, MRMInitReg, (outs VR256:$dst), (ins), "",
[(set VR256:$dst, (v4f64 immAllZerosV))]>, VEX_4V;
def AVX_SET0PS : PSI<0x57, MRMInitReg, (outs VR128:$dst), (ins), "",
[(set VR128:$dst, (v4f32 immAllZerosV))]>, VEX_4V;
def AVX_SET0PD : PDI<0x57, MRMInitReg, (outs VR128:$dst), (ins), "",
[(set VR128:$dst, (v2f64 immAllZerosV))]>, VEX_4V;
def AVX_SET0PSY : PSI<0x57, MRMInitReg, (outs VR256:$dst), (ins), "",
[(set VR256:$dst, (v8f32 immAllZerosV))]>, VEX_4V;
def AVX_SET0PDY : PDI<0x57, MRMInitReg, (outs VR256:$dst), (ins), "",
[(set VR256:$dst, (v4f64 immAllZerosV))]>, VEX_4V;
let ExeDomain = SSEPackedInt in
def AVX_SET0PI : PDI<0xEF, MRMInitReg, (outs VR128:$dst), (ins), "",
[(set VR128:$dst, (v4i32 immAllZerosV))]>;
}
def : Pat<(v2i64 immAllZerosV), (V_SET0PI)>;

7
lib/Target/X86/X86MCInstLower.cpp
View File

@ -377,11 +377,14 @@ void X86MCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
case X86::FsFLD0SS: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
case X86::FsFLD0SD: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
case X86::V_SET0PS: LowerUnaryToTwoAddr(OutMI, X86::XORPSrr); break;
case X86::V_SET0PSY: LowerUnaryToTwoAddr(OutMI, X86::VXORPSYrr); break;
case X86::V_SET0PD: LowerUnaryToTwoAddr(OutMI, X86::XORPDrr); break;
case X86::V_SET0PDY: LowerUnaryToTwoAddr(OutMI, X86::VXORPDYrr); break;
case X86::V_SET0PI: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
case X86::V_SETALLONES: LowerUnaryToTwoAddr(OutMI, X86::PCMPEQDrr); break;
case X86::AVX_SET0PS: LowerUnaryToTwoAddr(OutMI, X86::VXORPSrr); break;
case X86::AVX_SET0PSY: LowerUnaryToTwoAddr(OutMI, X86::VXORPSYrr); break;
case X86::AVX_SET0PD: LowerUnaryToTwoAddr(OutMI, X86::VXORPDrr); break;
case X86::AVX_SET0PDY: LowerUnaryToTwoAddr(OutMI, X86::VXORPDYrr); break;
case X86::AVX_SET0PI: LowerUnaryToTwoAddr(OutMI, X86::VPXORrr); break;
case X86::MOV16r0:
LowerSubReg32_Op0(OutMI, X86::MOV32r0); // MOV16r0 -> MOV32r0