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RegisterPressureTracker: fix findUseBetween to handle DebugValue

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169427 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2012-12-05 21:37:50 +00:00
parent f54f615386
commit f3329c419b
2 changed files with 51 additions and 0 deletions
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2
lib/CodeGen/RegisterPressure.cpp
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@@ -680,6 +680,8 @@ static bool findUseBetween(unsigned Reg,
UI = MRI->use_nodbg_begin(Reg), UE = MRI->use_nodbg_end();
UI != UE; UI.skipInstruction()) {
const MachineInstr* MI = &*UI;
if (MI->isDebugValue())
continue;
SlotIndex InstSlot = LIS->getInstructionIndex(MI).getRegSlot();
if (InstSlot >= PriorUseIdx && InstSlot < NextUseIdx)
return true;