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| author | Dale Johannesen <dalej@apple.com> | 2009-03-04 02:06:53 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2009-03-04 02:06:53 +0000 |
| commit | 9b121e3dc541abf5899fc5d38c61e3e6d07a99eb (patch) | |
| tree | 4824edd349ed4273ad47fee3ddf647bc621e8a4f | |
| parent | c9612320aef934569c4f247a9f9699d5ec4557a2 (diff) | |
| download | external_llvm-9b121e3dc541abf5899fc5d38c61e3e6d07a99eb.zip external_llvm-9b121e3dc541abf5899fc5d38c61e3e6d07a99eb.tar.gz external_llvm-9b121e3dc541abf5899fc5d38c61e3e6d07a99eb.tar.bz2 | |
Skip ptr-to-ptr bitcasts when counting in another case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66000 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Utils/BasicBlockUtils.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp index fd7b7da..97460bf 100644 --- a/lib/Transforms/Utils/BasicBlockUtils.cpp +++ b/lib/Transforms/Utils/BasicBlockUtils.cpp @@ -477,10 +477,10 @@ 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())) + // We skip pointer-to-pointer bitcasts, which are NOPs. + // It is necessary for correctness to skip those that feed into a + // llvm.dbg.declare, as these are not present when debugging is off. + if (isa<BitCastInst>(Inst) && isa<PointerType>(Inst->getType())) continue; // Restore ScanFrom to expected value in case next test succeeds |