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Instruction counters must skip the bitcasts that

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feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65976 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2009-03-03 22:36:47 +00:00
parent 70b5e04d85
commit 4ded40a44d
3 changed files with 271 additions and 1 deletions
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6
lib/Transforms/Utils/BasicBlockUtils.cpp
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@ -477,6 +477,12 @@ Value *llvm::FindAvailableLoadedValue(Value *Ptr, BasicBlock *ScanBB,
Instruction *Inst = --ScanFrom;
if (isa<DbgInfoIntrinsic>(Inst))
continue;
// Likewise, we skip bitcasts that feed into a llvm.dbg.declare; these are
// not present when debugging is off.
if (isa<BitCastInst>(Inst) && Inst->hasOneUse() &&
isa<DbgDeclareInst>(Inst->use_begin()))
continue;
// Restore ScanFrom to expected value in case next test succeeds
ScanFrom++;