#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/Compiler.h"
///
AliasSetTracker *AST;
- LLVMContext* Context;
+ LLVMContext &Context;
/// AllocaLookup - Reverse mapping of Allocas.
///
public:
PromoteMem2Reg(const std::vector<AllocaInst*> &A, DominatorTree &dt,
DominanceFrontier &df, AliasSetTracker *ast,
- LLVMContext* C)
+ LLVMContext &C)
: Allocas(A), DT(dt), DF(df), AST(ast), Context(C) {}
void run();
//
RenamePassData::ValVector Values(Allocas.size());
for (unsigned i = 0, e = Allocas.size(); i != e; ++i)
- Values[i] = Context->getUndef(Allocas[i]->getAllocatedType());
+ Values[i] = Context.getUndef(Allocas[i]->getAllocatedType());
// Walks all basic blocks in the function performing the SSA rename algorithm
// and inserting the phi nodes we marked as necessary
// Just delete the users now.
//
if (!A->use_empty())
- A->replaceAllUsesWith(Context->getUndef(A->getType()));
+ A->replaceAllUsesWith(Context.getUndef(A->getType()));
if (AST) AST->deleteValue(A);
A->eraseFromParent();
}
BasicBlock::iterator BBI = BB->begin();
while ((SomePHI = dyn_cast<PHINode>(BBI++)) &&
SomePHI->getNumIncomingValues() == NumBadPreds) {
- Value *UndefVal = Context->getUndef(SomePHI->getType());
+ Value *UndefVal = Context.getUndef(SomePHI->getType());
for (unsigned pred = 0, e = Preds.size(); pred != e; ++pred)
SomePHI->addIncoming(UndefVal, Preds[pred]);
}
if (StoresByIndex.empty()) {
for (Value::use_iterator UI = AI->use_begin(), E = AI->use_end(); UI != E;)
if (LoadInst *LI = dyn_cast<LoadInst>(*UI++)) {
- LI->replaceAllUsesWith(Context->getUndef(LI->getType()));
+ LI->replaceAllUsesWith(Context.getUndef(LI->getType()));
if (AST && isa<PointerType>(LI->getType()))
AST->deleteValue(LI);
LBI.deleteValue(LI);
// Create a PhiNode using the dereferenced type... and add the phi-node to the
// BasicBlock.
PN = PHINode::Create(Allocas[AllocaNo]->getAllocatedType(),
- Allocas[AllocaNo]->getName() + "." +
- utostr(Version++), BB->begin());
+ Allocas[AllocaNo]->getName() + "." + Version++,
+ BB->begin());
++NumPHIInsert;
PhiToAllocaMap[PN] = AllocaNo;
PN->reserveOperandSpace(getNumPreds(BB));
///
void llvm::PromoteMemToReg(const std::vector<AllocaInst*> &Allocas,
DominatorTree &DT, DominanceFrontier &DF,
- LLVMContext* Context, AliasSetTracker *AST) {
+ LLVMContext &Context, AliasSetTracker *AST) {
// If there is nothing to do, bail out...
if (Allocas.empty()) return;