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Handle the memory barrier pseudo that goes to nothing for the JIT.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110371 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2010-08-05 20:04:36 +00:00
parent da93b2cb8f
commit 505656c6a2
1 changed files with 7 additions and 1 deletions
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8
lib/Target/X86/X86CodeEmitter.cpp
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@ -705,6 +705,12 @@ void Emitter<CodeEmitter>::emitInstruction(const MachineInstr &MI,
llvm_unreachable("psuedo instructions should be removed before code"
" emission");
break;
// Do nothing for Int_MemBarrier - it's just a comment. Add a debug
// to make it slightly easier to see.
case X86::Int_MemBarrier:
DEBUG(dbgs() << "#MEMBARRIER\n");
break;
case TargetOpcode::INLINEASM:
// We allow inline assembler nodes with empty bodies - they can
// implicitly define registers, which is ok for JIT.
@ -716,7 +722,7 @@ void Emitter<CodeEmitter>::emitInstruction(const MachineInstr &MI,
case TargetOpcode::EH_LABEL:
MCE.emitLabel(MI.getOperand(0).getMCSymbol());
break;
case TargetOpcode::IMPLICIT_DEF:
case TargetOpcode::KILL:
break;