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author | rdivacky <rdivacky@FreeBSD.org> | 2010-07-13 17:19:57 +0000 |
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committer | rdivacky <rdivacky@FreeBSD.org> | 2010-07-13 17:19:57 +0000 |
commit | 9112829d76cbb8e0c8ef51bbc2d7d1be48cd7b74 (patch) | |
tree | 9de1c5f67a98cd0e73c60838396486c984f63ac2 /lib/Transforms/Utils/CloneFunction.cpp | |
parent | 1e3dec662ea18131c495db50caccc57f77b7a5fe (diff) | |
download | FreeBSD-src-9112829d76cbb8e0c8ef51bbc2d7d1be48cd7b74.zip FreeBSD-src-9112829d76cbb8e0c8ef51bbc2d7d1be48cd7b74.tar.gz |
Update LLVM to r108243.
Diffstat (limited to 'lib/Transforms/Utils/CloneFunction.cpp')
-rw-r--r-- | lib/Transforms/Utils/CloneFunction.cpp | 100 |
1 files changed, 50 insertions, 50 deletions
diff --git a/lib/Transforms/Utils/CloneFunction.cpp b/lib/Transforms/Utils/CloneFunction.cpp index 6d4fe4b..1dcfd57 100644 --- a/lib/Transforms/Utils/CloneFunction.cpp +++ b/lib/Transforms/Utils/CloneFunction.cpp @@ -32,7 +32,7 @@ using namespace llvm; // CloneBasicBlock - See comments in Cloning.h BasicBlock *llvm::CloneBasicBlock(const BasicBlock *BB, - DenseMap<const Value*, Value*> &ValueMap, + ValueToValueMapTy &VMap, const Twine &NameSuffix, Function *F, ClonedCodeInfo *CodeInfo) { BasicBlock *NewBB = BasicBlock::Create(BB->getContext(), "", F); @@ -47,7 +47,7 @@ BasicBlock *llvm::CloneBasicBlock(const BasicBlock *BB, if (II->hasName()) NewInst->setName(II->getName()+NameSuffix); NewBB->getInstList().push_back(NewInst); - ValueMap[II] = NewInst; // Add instruction map to value. + VMap[II] = NewInst; // Add instruction map to value. hasCalls |= (isa<CallInst>(II) && !isa<DbgInfoIntrinsic>(II)); if (const AllocaInst *AI = dyn_cast<AllocaInst>(II)) { @@ -72,7 +72,7 @@ BasicBlock *llvm::CloneBasicBlock(const BasicBlock *BB, // ArgMap values. // void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc, - DenseMap<const Value*, Value*> &ValueMap, + ValueToValueMapTy &VMap, SmallVectorImpl<ReturnInst*> &Returns, const char *NameSuffix, ClonedCodeInfo *CodeInfo) { assert(NameSuffix && "NameSuffix cannot be null!"); @@ -80,17 +80,17 @@ void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc, #ifndef NDEBUG for (Function::const_arg_iterator I = OldFunc->arg_begin(), E = OldFunc->arg_end(); I != E; ++I) - assert(ValueMap.count(I) && "No mapping from source argument specified!"); + assert(VMap.count(I) && "No mapping from source argument specified!"); #endif // Clone any attributes. if (NewFunc->arg_size() == OldFunc->arg_size()) NewFunc->copyAttributesFrom(OldFunc); else { - //Some arguments were deleted with the ValueMap. Copy arguments one by one + //Some arguments were deleted with the VMap. Copy arguments one by one for (Function::const_arg_iterator I = OldFunc->arg_begin(), E = OldFunc->arg_end(); I != E; ++I) - if (Argument* Anew = dyn_cast<Argument>(ValueMap[I])) + if (Argument* Anew = dyn_cast<Argument>(VMap[I])) Anew->addAttr( OldFunc->getAttributes() .getParamAttributes(I->getArgNo() + 1)); NewFunc->setAttributes(NewFunc->getAttributes() @@ -111,43 +111,43 @@ void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc, const BasicBlock &BB = *BI; // Create a new basic block and copy instructions into it! - BasicBlock *CBB = CloneBasicBlock(&BB, ValueMap, NameSuffix, NewFunc, + BasicBlock *CBB = CloneBasicBlock(&BB, VMap, NameSuffix, NewFunc, CodeInfo); - ValueMap[&BB] = CBB; // Add basic block mapping. + VMap[&BB] = CBB; // Add basic block mapping. if (ReturnInst *RI = dyn_cast<ReturnInst>(CBB->getTerminator())) Returns.push_back(RI); } // Loop over all of the instructions in the function, fixing up operand - // references as we go. This uses ValueMap to do all the hard work. + // references as we go. This uses VMap to do all the hard work. // - for (Function::iterator BB = cast<BasicBlock>(ValueMap[OldFunc->begin()]), + for (Function::iterator BB = cast<BasicBlock>(VMap[OldFunc->begin()]), BE = NewFunc->end(); BB != BE; ++BB) // Loop over all instructions, fixing each one as we find it... for (BasicBlock::iterator II = BB->begin(); II != BB->end(); ++II) - RemapInstruction(II, ValueMap); + RemapInstruction(II, VMap); } /// CloneFunction - Return a copy of the specified function, but without /// embedding the function into another module. Also, any references specified -/// in the ValueMap are changed to refer to their mapped value instead of the -/// original one. If any of the arguments to the function are in the ValueMap, -/// the arguments are deleted from the resultant function. The ValueMap is +/// in the VMap are changed to refer to their mapped value instead of the +/// original one. If any of the arguments to the function are in the VMap, +/// the arguments are deleted from the resultant function. The VMap is /// updated to include mappings from all of the instructions and basicblocks in /// the function from their old to new values. /// Function *llvm::CloneFunction(const Function *F, - DenseMap<const Value*, Value*> &ValueMap, + ValueToValueMapTy &VMap, ClonedCodeInfo *CodeInfo) { std::vector<const Type*> ArgTypes; // The user might be deleting arguments to the function by specifying them in - // the ValueMap. If so, we need to not add the arguments to the arg ty vector + // the VMap. If so, we need to not add the arguments to the arg ty vector // for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E; ++I) - if (ValueMap.count(I) == 0) // Haven't mapped the argument to anything yet? + if (VMap.count(I) == 0) // Haven't mapped the argument to anything yet? ArgTypes.push_back(I->getType()); // Create a new function type... @@ -161,13 +161,13 @@ Function *llvm::CloneFunction(const Function *F, Function::arg_iterator DestI = NewF->arg_begin(); for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E; ++I) - if (ValueMap.count(I) == 0) { // Is this argument preserved? + if (VMap.count(I) == 0) { // Is this argument preserved? DestI->setName(I->getName()); // Copy the name over... - ValueMap[I] = DestI++; // Add mapping to ValueMap + VMap[I] = DestI++; // Add mapping to VMap } SmallVector<ReturnInst*, 8> Returns; // Ignore returns cloned. - CloneFunctionInto(NewF, F, ValueMap, Returns, "", CodeInfo); + CloneFunctionInto(NewF, F, VMap, Returns, "", CodeInfo); return NewF; } @@ -179,19 +179,19 @@ namespace { struct PruningFunctionCloner { Function *NewFunc; const Function *OldFunc; - DenseMap<const Value*, Value*> &ValueMap; + ValueToValueMapTy &VMap; SmallVectorImpl<ReturnInst*> &Returns; const char *NameSuffix; ClonedCodeInfo *CodeInfo; const TargetData *TD; public: PruningFunctionCloner(Function *newFunc, const Function *oldFunc, - DenseMap<const Value*, Value*> &valueMap, + ValueToValueMapTy &valueMap, SmallVectorImpl<ReturnInst*> &returns, const char *nameSuffix, ClonedCodeInfo *codeInfo, const TargetData *td) - : NewFunc(newFunc), OldFunc(oldFunc), ValueMap(valueMap), Returns(returns), + : NewFunc(newFunc), OldFunc(oldFunc), VMap(valueMap), Returns(returns), NameSuffix(nameSuffix), CodeInfo(codeInfo), TD(td) { } @@ -202,7 +202,7 @@ namespace { public: /// ConstantFoldMappedInstruction - Constant fold the specified instruction, - /// mapping its operands through ValueMap if they are available. + /// mapping its operands through VMap if they are available. Constant *ConstantFoldMappedInstruction(const Instruction *I); }; } @@ -211,7 +211,7 @@ namespace { /// anything that it can reach. void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, std::vector<const BasicBlock*> &ToClone){ - Value *&BBEntry = ValueMap[BB]; + Value *&BBEntry = VMap[BB]; // Have we already cloned this block? if (BBEntry) return; @@ -230,7 +230,7 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, // If this instruction constant folds, don't bother cloning the instruction, // instead, just add the constant to the value map. if (Constant *C = ConstantFoldMappedInstruction(II)) { - ValueMap[II] = C; + VMap[II] = C; continue; } @@ -238,7 +238,7 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, if (II->hasName()) NewInst->setName(II->getName()+NameSuffix); NewBB->getInstList().push_back(NewInst); - ValueMap[II] = NewInst; // Add instruction map to value. + VMap[II] = NewInst; // Add instruction map to value. hasCalls |= (isa<CallInst>(II) && !isa<DbgInfoIntrinsic>(II)); if (const AllocaInst *AI = dyn_cast<AllocaInst>(II)) { @@ -258,12 +258,12 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, ConstantInt *Cond = dyn_cast<ConstantInt>(BI->getCondition()); // Or is a known constant in the caller... if (Cond == 0) - Cond = dyn_cast_or_null<ConstantInt>(ValueMap[BI->getCondition()]); + Cond = dyn_cast_or_null<ConstantInt>(VMap[BI->getCondition()]); // Constant fold to uncond branch! if (Cond) { BasicBlock *Dest = BI->getSuccessor(!Cond->getZExtValue()); - ValueMap[OldTI] = BranchInst::Create(Dest, NewBB); + VMap[OldTI] = BranchInst::Create(Dest, NewBB); ToClone.push_back(Dest); TerminatorDone = true; } @@ -272,10 +272,10 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, // If switching on a value known constant in the caller. ConstantInt *Cond = dyn_cast<ConstantInt>(SI->getCondition()); if (Cond == 0) // Or known constant after constant prop in the callee... - Cond = dyn_cast_or_null<ConstantInt>(ValueMap[SI->getCondition()]); + Cond = dyn_cast_or_null<ConstantInt>(VMap[SI->getCondition()]); if (Cond) { // Constant fold to uncond branch! BasicBlock *Dest = SI->getSuccessor(SI->findCaseValue(Cond)); - ValueMap[OldTI] = BranchInst::Create(Dest, NewBB); + VMap[OldTI] = BranchInst::Create(Dest, NewBB); ToClone.push_back(Dest); TerminatorDone = true; } @@ -286,7 +286,7 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, if (OldTI->hasName()) NewInst->setName(OldTI->getName()+NameSuffix); NewBB->getInstList().push_back(NewInst); - ValueMap[OldTI] = NewInst; // Add instruction map to value. + VMap[OldTI] = NewInst; // Add instruction map to value. // Recursively clone any reachable successor blocks. const TerminatorInst *TI = BB->getTerminator(); @@ -307,13 +307,13 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB, } /// ConstantFoldMappedInstruction - Constant fold the specified instruction, -/// mapping its operands through ValueMap if they are available. +/// mapping its operands through VMap if they are available. Constant *PruningFunctionCloner:: ConstantFoldMappedInstruction(const Instruction *I) { SmallVector<Constant*, 8> Ops; for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) if (Constant *Op = dyn_cast_or_null<Constant>(MapValue(I->getOperand(i), - ValueMap))) + VMap))) Ops.push_back(Op); else return 0; // All operands not constant! @@ -363,7 +363,7 @@ static MDNode *UpdateInlinedAtInfo(MDNode *InsnMD, MDNode *TheCallMD) { /// dead. Since this doesn't produce an exact copy of the input, it can't be /// used for things like CloneFunction or CloneModule. void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, - DenseMap<const Value*, Value*> &ValueMap, + ValueToValueMapTy &VMap, SmallVectorImpl<ReturnInst*> &Returns, const char *NameSuffix, ClonedCodeInfo *CodeInfo, @@ -374,10 +374,10 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, #ifndef NDEBUG for (Function::const_arg_iterator II = OldFunc->arg_begin(), E = OldFunc->arg_end(); II != E; ++II) - assert(ValueMap.count(II) && "No mapping from source argument specified!"); + assert(VMap.count(II) && "No mapping from source argument specified!"); #endif - PruningFunctionCloner PFC(NewFunc, OldFunc, ValueMap, Returns, + PruningFunctionCloner PFC(NewFunc, OldFunc, VMap, Returns, NameSuffix, CodeInfo, TD); // Clone the entry block, and anything recursively reachable from it. @@ -397,14 +397,14 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, SmallVector<const PHINode*, 16> PHIToResolve; for (Function::const_iterator BI = OldFunc->begin(), BE = OldFunc->end(); BI != BE; ++BI) { - BasicBlock *NewBB = cast_or_null<BasicBlock>(ValueMap[BI]); + BasicBlock *NewBB = cast_or_null<BasicBlock>(VMap[BI]); if (NewBB == 0) continue; // Dead block. // Add the new block to the new function. NewFunc->getBasicBlockList().push_back(NewBB); // Loop over all of the instructions in the block, fixing up operand - // references as we go. This uses ValueMap to do all the hard work. + // references as we go. This uses VMap to do all the hard work. // BasicBlock::iterator I = NewBB->begin(); @@ -455,7 +455,7 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, I->setMetadata(DbgKind, 0); } } - RemapInstruction(I, ValueMap); + RemapInstruction(I, VMap); } } @@ -465,19 +465,19 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, const PHINode *OPN = PHIToResolve[phino]; unsigned NumPreds = OPN->getNumIncomingValues(); const BasicBlock *OldBB = OPN->getParent(); - BasicBlock *NewBB = cast<BasicBlock>(ValueMap[OldBB]); + BasicBlock *NewBB = cast<BasicBlock>(VMap[OldBB]); // Map operands for blocks that are live and remove operands for blocks // that are dead. for (; phino != PHIToResolve.size() && PHIToResolve[phino]->getParent() == OldBB; ++phino) { OPN = PHIToResolve[phino]; - PHINode *PN = cast<PHINode>(ValueMap[OPN]); + PHINode *PN = cast<PHINode>(VMap[OPN]); for (unsigned pred = 0, e = NumPreds; pred != e; ++pred) { if (BasicBlock *MappedBlock = - cast_or_null<BasicBlock>(ValueMap[PN->getIncomingBlock(pred)])) { + cast_or_null<BasicBlock>(VMap[PN->getIncomingBlock(pred)])) { Value *InVal = MapValue(PN->getIncomingValue(pred), - ValueMap); + VMap); assert(InVal && "Unknown input value?"); PN->setIncomingValue(pred, InVal); PN->setIncomingBlock(pred, MappedBlock); @@ -531,15 +531,15 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, while ((PN = dyn_cast<PHINode>(I++))) { Value *NV = UndefValue::get(PN->getType()); PN->replaceAllUsesWith(NV); - assert(ValueMap[OldI] == PN && "ValueMap mismatch"); - ValueMap[OldI] = NV; + assert(VMap[OldI] == PN && "VMap mismatch"); + VMap[OldI] = NV; PN->eraseFromParent(); ++OldI; } } // NOTE: We cannot eliminate single entry phi nodes here, because of - // ValueMap. Single entry phi nodes can have multiple ValueMap entries - // pointing at them. Thus, deleting one would require scanning the ValueMap + // VMap. Single entry phi nodes can have multiple VMap entries + // pointing at them. Thus, deleting one would require scanning the VMap // to update any entries in it that would require that. This would be // really slow. } @@ -548,14 +548,14 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc, // and zap unconditional fall-through branches. This happen all the time when // specializing code: code specialization turns conditional branches into // uncond branches, and this code folds them. - Function::iterator I = cast<BasicBlock>(ValueMap[&OldFunc->getEntryBlock()]); + Function::iterator I = cast<BasicBlock>(VMap[&OldFunc->getEntryBlock()]); while (I != NewFunc->end()) { BranchInst *BI = dyn_cast<BranchInst>(I->getTerminator()); if (!BI || BI->isConditional()) { ++I; continue; } // Note that we can't eliminate uncond branches if the destination has // single-entry PHI nodes. Eliminating the single-entry phi nodes would - // require scanning the ValueMap to update any entries that point to the phi + // require scanning the VMap to update any entries that point to the phi // node. BasicBlock *Dest = BI->getSuccessor(0); if (!Dest->getSinglePredecessor() || isa<PHINode>(Dest->begin())) { |