diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp b/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp index b044fe8..6aea79f 100644 --- a/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp +++ b/llvm/lib/Transforms/Scalar/LoopDataPrefetch.cpp @@ -26,6 +26,7 @@ #include "llvm/Analysis/TargetTransformInfo.h" #include "llvm/Analysis/ValueTracking.h" #include "llvm/IR/CFG.h" +#include "llvm/IR/DiagnosticInfo.h" #include "llvm/IR/Dominators.h" #include "llvm/IR/Function.h" #include "llvm/IR/IntrinsicInst.h" @@ -209,9 +210,10 @@ bool LoopDataPrefetch::runOnLoop(Loop *L) { if (ItersAhead > getMaxPrefetchIterationsAhead()) return MadeChange; + Function *F = L->getHeader()->getParent(); DEBUG(dbgs() << "Prefetching " << ItersAhead << " iterations ahead (loop size: " << LoopSize << ") in " - << L->getHeader()->getParent()->getName() << ": " << *L); + << F->getName() << ": " << *L); SmallVector<std::pair<Instruction *, const SCEVAddRecExpr *>, 16> PrefLoads; for (Loop::block_iterator I = L->block_begin(), IE = L->block_end(); @@ -291,6 +293,9 @@ bool LoopDataPrefetch::runOnLoop(Loop *L) { ++NumPrefetches; DEBUG(dbgs() << " Access: " << *PtrValue << ", SCEV: " << *LSCEV << "\n"); + emitOptimizationRemark(F->getContext(), DEBUG_TYPE, *F, + MemI->getDebugLoc(), "prefetched memory access"); + MadeChange = true; } |