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Don't allow DBG_VALUE to affect codegen.

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llvm-svn: 95889
This commit is contained in:
Dale Johannesen 2010-02-11 18:22:31 +00:00
parent 7c088ab119
commit 406fad0bad
1 changed files with 3 additions and 0 deletions
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3
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -213,6 +213,9 @@ bool TwoAddressInstructionPass::Sink3AddrInstruction(MachineBasicBlock *MBB,
unsigned NumVisited = 0;
for (MachineBasicBlock::iterator I = llvm::next(OldPos); I != KillPos; ++I) {
MachineInstr *OtherMI = I;
// DBG_VALUE cannot be counted against the limit.
if (OtherMI->isDebugValue())
continue;
if (NumVisited > 30) // FIXME: Arbitrary limit to reduce compile time cost.
return false;
++NumVisited;