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Clean up the lazy initialization of DIBuilder a bit.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131956 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich
2011-05-24 06:00:08 +00:00
parent dfa178bc2a
commit 13a16083ab
4 changed files with 8 additions and 13 deletions
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12
lib/Transforms/Utils/SSAUpdater.cpp
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@ -358,7 +358,7 @@ Value *SSAUpdater::GetValueAtEndOfBlockInternal(BasicBlock *BB) {
LoadAndStorePromoter::
LoadAndStorePromoter(const SmallVectorImpl<Instruction*> &Insts,
SSAUpdater &S, DbgDeclareInst *DD, DIBuilder *&DB,
SSAUpdater &S, DbgDeclareInst *DD, DIBuilder *DB,
StringRef BaseName) : SSA(S), DDI(DD), DIB(DB) {
if (Insts.empty()) return;
@ -407,11 +407,8 @@ run(const SmallVectorImpl<Instruction*> &Insts) const {
if (BlockUses.size() == 1) {
// If it is a store, it is a trivial def of the value in the block.
if (StoreInst *SI = dyn_cast<StoreInst>(User)) {
if (DDI) {
if (!DIB)
DIB = new DIBuilder(*SI->getParent()->getParent()->getParent());
if (DDI)
ConvertDebugDeclareToDebugValue(DDI, SI, *DIB);
}
SSA.AddAvailableValue(BB, SI->getOperand(0));
} else
// Otherwise it is a load, queue it to rewrite as a live-in load.
@ -466,11 +463,8 @@ run(const SmallVectorImpl<Instruction*> &Insts) const {
// If this is a store to an unrelated pointer, ignore it.
if (!isInstInList(SI, Insts)) continue;
if (DDI) {
if (!DIB)
DIB = new DIBuilder(*SI->getParent()->getParent()->getParent());
if (DDI)
ConvertDebugDeclareToDebugValue(DDI, SI, *DIB);
}
// Remember that this is the active value in the block.
StoredValue = SI->getOperand(0);