diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVN.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp index 83a7efe14e9..4f66c5d1314 100644 --- a/llvm/lib/Transforms/Scalar/GVN.cpp +++ b/llvm/lib/Transforms/Scalar/GVN.cpp @@ -1590,10 +1590,13 @@ bool GVN::PerformLoadPRE(LoadInst *LI, AvailValInBlkVect &ValuesPerBlock, return true; } -static void reportLoadElim(LoadInst *LI, OptimizationRemarkEmitter *ORE) { +static void reportLoadElim(LoadInst *LI, Value *AvailableValue, + OptimizationRemarkEmitter *ORE) { + using namespace ore; ORE->emit(OptimizationRemark(DEBUG_TYPE, "LoadElim", LI) - << "load of type " << ore::NV("Type", LI->getType()) - << " eliminated"); + << "load of type " << NV("Type", LI->getType()) << " eliminated" + << setExtraArgs() << " in favor of " + << NV("InfavorOfValue", AvailableValue)); } /// Attempt to eliminate a load whose dependencies are @@ -1666,7 +1669,7 @@ bool GVN::processNonLocalLoad(LoadInst *LI) { MD->invalidateCachedPointerInfo(V); markInstructionForDeletion(LI); ++NumGVNLoad; - reportLoadElim(LI, ORE); + reportLoadElim(LI, V, ORE); return true; } @@ -1813,7 +1816,7 @@ bool GVN::processLoad(LoadInst *L) { patchAndReplaceAllUsesWith(L, AvailableValue); markInstructionForDeletion(L); ++NumGVNLoad; - reportLoadElim(L, ORE); + reportLoadElim(L, AvailableValue, ORE); // Tell MDA to rexamine the reused pointer since we might have more // information after forwarding it. if (MD && AvailableValue->getType()->getScalarType()->isPointerTy()) |
