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Don't allow DBG_VALUE to affect codegen.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95889 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2010-02-11 18:22:31 +00:00
parent 27bb8d0a88
commit 3bfef03eb6
1 changed files with 3 additions and 0 deletions

3
lib/CodeGen/TwoAddressInstructionPass.cpp

@ -213,6 +213,9 @@ bool TwoAddressInstructionPass::Sink3AddrInstruction(MachineBasicBlock *MBB,
unsigned NumVisited = 0; unsigned NumVisited = 0;
for (MachineBasicBlock::iterator I = llvm::next(OldPos); I != KillPos; ++I) { for (MachineBasicBlock::iterator I = llvm::next(OldPos); I != KillPos; ++I) {
MachineInstr *OtherMI = 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. if (NumVisited > 30) // FIXME: Arbitrary limit to reduce compile time cost.
return false; return false;
++NumVisited; ++NumVisited;