diff options
| -rw-r--r-- | llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp index c0fe949b515..0303c4900c8 100644 --- a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp +++ b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp @@ -344,8 +344,7 @@ namespace { bool processMemMove(MemMoveInst *M); bool performCallSlotOptzn(Instruction *cpy, Value *cpyDst, Value *cpySrc, uint64_t cpyLen, unsigned cpyAlign, CallInst *C); - bool processMemCpyMemCpyDependence(MemCpyInst *M, MemCpyInst *MDep, - uint64_t MSize); + bool processMemCpyMemCpyDependence(MemCpyInst *M, MemCpyInst *MDep); bool processMemSetMemCpyDependence(MemCpyInst *M, MemSetInst *MDep); bool processByValArgument(CallSite CS, unsigned ArgNo); Instruction *tryMergingIntoMemset(Instruction *I, Value *StartPtr, @@ -765,10 +764,9 @@ bool MemCpyOpt::performCallSlotOptzn(Instruction *cpy, /// processMemCpyMemCpyDependence - We've found that the (upward scanning) /// memory dependence of memcpy 'M' is the memcpy 'MDep'. Try to simplify M to -/// copy from MDep's input if we can. MSize is the size of M's copy. +/// copy from MDep's input if we can. /// -bool MemCpyOpt::processMemCpyMemCpyDependence(MemCpyInst *M, MemCpyInst *MDep, - uint64_t MSize) { +bool MemCpyOpt::processMemCpyMemCpyDependence(MemCpyInst *M, MemCpyInst *MDep) { // We can only transforms memcpy's where the dest of one is the source of the // other. if (M->getSource() != MDep->getDest() || MDep->isVolatile()) @@ -964,7 +962,7 @@ bool MemCpyOpt::processMemCpy(MemCpyInst *M) { if (SrcDepInfo.isClobber()) { if (MemCpyInst *MDep = dyn_cast<MemCpyInst>(SrcDepInfo.getInst())) - return processMemCpyMemCpyDependence(M, MDep, CopySize->getZExtValue()); + return processMemCpyMemCpyDependence(M, MDep); } else if (SrcDepInfo.isDef()) { Instruction *I = SrcDepInfo.getInst(); bool hasUndefContents = false; |
