diff options
Diffstat (limited to 'contrib/llvm/lib/Transforms/Scalar/GVN.cpp')
-rw-r--r-- | contrib/llvm/lib/Transforms/Scalar/GVN.cpp | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/contrib/llvm/lib/Transforms/Scalar/GVN.cpp b/contrib/llvm/lib/Transforms/Scalar/GVN.cpp index 88b6776..c62ce1f 100644 --- a/contrib/llvm/lib/Transforms/Scalar/GVN.cpp +++ b/contrib/llvm/lib/Transforms/Scalar/GVN.cpp @@ -165,7 +165,6 @@ namespace { Expression create_expression(CastInst* C); Expression create_expression(GetElementPtrInst* G); Expression create_expression(CallInst* C); - Expression create_expression(Constant* C); Expression create_expression(ExtractValueInst* C); Expression create_expression(InsertValueInst* C); @@ -665,7 +664,7 @@ namespace { public: static char ID; // Pass identification, replacement for typeid explicit GVN(bool noloads = false) - : FunctionPass(&ID), NoLoads(noloads), MD(0) { } + : FunctionPass(ID), NoLoads(noloads), MD(0) { } private: bool NoLoads; @@ -716,8 +715,7 @@ FunctionPass *llvm::createGVNPass(bool NoLoads) { return new GVN(NoLoads); } -static RegisterPass<GVN> X("gvn", - "Global Value Numbering"); +INITIALIZE_PASS(GVN, "gvn", "Global Value Numbering", false, false); void GVN::dump(DenseMap<uint32_t, Value*>& d) { errs() << "{\n"; @@ -735,7 +733,7 @@ static bool isSafeReplacement(PHINode* p, Instruction *inst) { for (Instruction::use_iterator UI = p->use_begin(), E = p->use_end(); UI != E; ++UI) - if (PHINode* use_phi = dyn_cast<PHINode>(UI)) + if (PHINode* use_phi = dyn_cast<PHINode>(*UI)) if (use_phi->getParent() == inst->getParent()) return false; @@ -1312,7 +1310,7 @@ static Value *ConstructSSAForLoadSet(LoadInst *LI, // Otherwise, we have to construct SSA form. SmallVector<PHINode*, 8> NewPHIs; SSAUpdater SSAUpdate(&NewPHIs); - SSAUpdate.Initialize(LI); + SSAUpdate.Initialize(LI->getType(), LI->getName()); const Type *LoadTy = LI->getType(); @@ -2112,6 +2110,11 @@ bool GVN::performPRE(Function &F) { CurInst->mayReadFromMemory() || CurInst->mayHaveSideEffects() || isa<DbgInfoIntrinsic>(CurInst)) continue; + + // We don't currently value number ANY inline asm calls. + if (CallInst *CallI = dyn_cast<CallInst>(CurInst)) + if (CallI->isInlineAsm()) + continue; uint32_t ValNo = VN.lookup(CurInst); |