6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-21 16:31:16 +00:00
Code Issues Projects Releases Wiki Activity

Skip ptr-to-ptr bitcasts when counting in another case.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66000 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2009-03-04 02:06:53 +00:00
parent cdb16aa5ab
commit d9c05d7711
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Transforms/Utils/BasicBlockUtils.cpp
View File

@ -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