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Replace duplicated code with a existing helper function.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199468 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2014-01-17 06:42:38 +00:00
parent 84887ceca3
commit ad6662f202
1 changed files with 1 additions and 16 deletions
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17
lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
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@ -754,22 +754,7 @@ void X86MCCodeEmitter::EmitVEXOpcodePrefix(uint64_t TSFlags, unsigned &CurByte,
// Classify VEX_B, VEX_4V, VEX_R, VEX_X
unsigned NumOps = Desc.getNumOperands();
unsigned CurOp = 0;
if (NumOps > 1 && Desc.getOperandConstraint(1, MCOI::TIED_TO) == 0)
++CurOp;
else if (NumOps > 3 && Desc.getOperandConstraint(2, MCOI::TIED_TO) == 0 &&
Desc.getOperandConstraint(3, MCOI::TIED_TO) == 1)
// Special case for AVX-512 GATHER with 2 TIED_TO operands
// Skip the first 2 operands: dst, mask_wb
CurOp += 2;
else if (NumOps > 3 && Desc.getOperandConstraint(2, MCOI::TIED_TO) == 0 &&
Desc.getOperandConstraint(NumOps - 1, MCOI::TIED_TO) == 1)
// Special case for GATHER with 2 TIED_TO operands
// Skip the first 2 operands: dst, mask_wb
CurOp += 2;
else if (NumOps > 2 && Desc.getOperandConstraint(NumOps - 2, MCOI::TIED_TO) == 0)
// SCATTER
++CurOp;
unsigned CurOp = X86II::getOperandBias(Desc);
switch (TSFlags & X86II::FormMask) {
default: llvm_unreachable("Unexpected form in EmitVEXOpcodePrefix!");