diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/JumpThreading.cpp')
-rw-r--r-- | llvm/lib/Transforms/Scalar/JumpThreading.cpp | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/llvm/lib/Transforms/Scalar/JumpThreading.cpp b/llvm/lib/Transforms/Scalar/JumpThreading.cpp index 21f80385cf4..2b4e3ff00dd 100644 --- a/llvm/lib/Transforms/Scalar/JumpThreading.cpp +++ b/llvm/lib/Transforms/Scalar/JumpThreading.cpp @@ -26,6 +26,7 @@ #include "llvm/IR/DataLayout.h" #include "llvm/IR/IntrinsicInst.h" #include "llvm/IR/LLVMContext.h" +#include "llvm/IR/Metadata.h" #include "llvm/IR/ValueHandle.h" #include "llvm/Pass.h" #include "llvm/Support/CommandLine.h" @@ -888,9 +889,10 @@ bool JumpThreading::SimplifyPartiallyRedundantLoad(LoadInst *LI) { if (BBIt != LoadBB->begin()) return false; - // If all of the loads and stores that feed the value have the same TBAA tag, - // then we can propagate it onto any newly inserted loads. - MDNode *TBAATag = LI->getMetadata(LLVMContext::MD_tbaa); + // If all of the loads and stores that feed the value have the same AA tags, + // then we can propagate them onto any newly inserted loads. + AAMDNodes AATags; + LI->getAAMetadata(AATags); SmallPtrSet<BasicBlock*, 8> PredsScanned; typedef SmallVector<std::pair<BasicBlock*, Value*>, 8> AvailablePredsTy; @@ -909,16 +911,16 @@ bool JumpThreading::SimplifyPartiallyRedundantLoad(LoadInst *LI) { // Scan the predecessor to see if the value is available in the pred. BBIt = PredBB->end(); - MDNode *ThisTBAATag = nullptr; + AAMDNodes ThisAATags; Value *PredAvailable = FindAvailableLoadedValue(LoadedPtr, PredBB, BBIt, 6, - nullptr, &ThisTBAATag); + nullptr, &ThisAATags); if (!PredAvailable) { OneUnavailablePred = PredBB; continue; } - // If tbaa tags disagree or are not present, forget about them. - if (TBAATag != ThisTBAATag) TBAATag = nullptr; + // If AA tags disagree or are not present, forget about them. + if (AATags != ThisAATags) AATags = AAMDNodes(); // If so, this load is partially redundant. Remember this info so that we // can create a PHI node. @@ -978,8 +980,8 @@ bool JumpThreading::SimplifyPartiallyRedundantLoad(LoadInst *LI) { LI->getAlignment(), UnavailablePred->getTerminator()); NewVal->setDebugLoc(LI->getDebugLoc()); - if (TBAATag) - NewVal->setMetadata(LLVMContext::MD_tbaa, TBAATag); + if (AATags) + NewVal->setAAMetadata(AATags); AvailablePreds.push_back(std::make_pair(UnavailablePred, NewVal)); } |