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More LLVMContext-ification.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74807 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2009-07-05 22:41:43 +00:00
parent db882950f3
commit 0a205a4598
26 changed files with 162 additions and 98 deletions
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20
lib/Transforms/Utils/PromoteMemoryToRegister.cpp
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@@ -23,6 +23,7 @@
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/LLVMContext.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/AliasSetTracker.h"
#include "llvm/ADT/DenseMap.h"
@@ -181,6 +182,8 @@ namespace {
/// AST - An AliasSetTracker object to update. If null, don't update it.
///
AliasSetTracker *AST;
LLVMContext* Context;
/// AllocaLookup - Reverse mapping of Allocas.
///
@@ -212,8 +215,9 @@ namespace {
DenseMap<const BasicBlock*, unsigned> BBNumPreds;
public:
PromoteMem2Reg(const std::vector<AllocaInst*> &A, DominatorTree &dt,
DominanceFrontier &df, AliasSetTracker *ast)
: Allocas(A), DT(dt), DF(df), AST(ast) {}
DominanceFrontier &df, AliasSetTracker *ast,
LLVMContext* C)
: Allocas(A), DT(dt), DF(df), AST(ast), Context(C) {}
void run();
@@ -445,7 +449,7 @@ void PromoteMem2Reg::run() {
//
RenamePassData::ValVector Values(Allocas.size());
for (unsigned i = 0, e = Allocas.size(); i != e; ++i)
Values[i] = UndefValue::get(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
@@ -472,7 +476,7 @@ void PromoteMem2Reg::run() {
// Just delete the users now.
//
if (!A->use_empty())
A->replaceAllUsesWith(UndefValue::get(A->getType()));
A->replaceAllUsesWith(Context->getUndef(A->getType()));
if (AST) AST->deleteValue(A);
A->eraseFromParent();
}
@@ -558,7 +562,7 @@ void PromoteMem2Reg::run() {
BasicBlock::iterator BBI = BB->begin();
while ((SomePHI = dyn_cast<PHINode>(BBI++)) &&
SomePHI->getNumIncomingValues() == NumBadPreds) {
Value *UndefVal = UndefValue::get(SomePHI->getType());
Value *UndefVal = Context->getUndef(SomePHI->getType());
for (unsigned pred = 0, e = Preds.size(); pred != e; ++pred)
SomePHI->addIncoming(UndefVal, Preds[pred]);
}
@@ -804,7 +808,7 @@ void PromoteMem2Reg::PromoteSingleBlockAlloca(AllocaInst *AI, AllocaInfo &Info,
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(UndefValue::get(LI->getType()));
LI->replaceAllUsesWith(Context->getUndef(LI->getType()));
if (AST && isa<PointerType>(LI->getType()))
AST->deleteValue(LI);
LBI.deleteValue(LI);
@@ -995,9 +999,9 @@ NextIteration:
///
void llvm::PromoteMemToReg(const std::vector<AllocaInst*> &Allocas,
DominatorTree &DT, DominanceFrontier &DF,
AliasSetTracker *AST) {
LLVMContext* Context, AliasSetTracker *AST) {
// If there is nothing to do, bail out...
if (Allocas.empty()) return;
PromoteMem2Reg(Allocas, DT, DF, AST).run();
PromoteMem2Reg(Allocas, DT, DF, AST, Context).run();
}