diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86CodeEmitter.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86CodeEmitter.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86CodeEmitter.cpp b/llvm/lib/Target/X86/X86CodeEmitter.cpp index 5a788c057de..70dc926c798 100644 --- a/llvm/lib/Target/X86/X86CodeEmitter.cpp +++ b/llvm/lib/Target/X86/X86CodeEmitter.cpp @@ -471,7 +471,10 @@ void Emitter::emitInstruction(const MachineInstr &MI, unsigned NumOps = Desc->getNumOperands(); unsigned CurOp = 0; if (NumOps > 1 && Desc->getOperandConstraint(1, TOI::TIED_TO) != -1) - CurOp++; + ++CurOp; + else if (NumOps > 2 && Desc->getOperandConstraint(NumOps-1, TOI::TIED_TO)== 0) + // Skip the last source operand that is tied_to the dest reg. e.g. LXADD32 + --NumOps; unsigned char BaseOpcode = II->getBaseOpcodeFor(Desc); switch (Desc->TSFlags & X86II::FormMask) { |
