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[EarlyCSE] Address post commit review for r249523.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249814 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnaud A. de Grandmaison 2015-10-09 09:23:01 +00:00
parent 80033cca37
commit 4d9ce589f8
1 changed files with 10 additions and 10 deletions
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20
lib/Transforms/Scalar/EarlyCSE.cpp
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@ -291,12 +291,12 @@ public:
/// after every possibly writing memory operation, which ensures that we only
/// CSE loads with other loads that have no intervening store.
struct LoadValue {
Value *data;
unsigned generation;
int matchingId;
LoadValue() : data(nullptr), generation(0), matchingId(-1) {}
LoadValue(Value *data, unsigned generation, unsigned matchingId)
: data(data), generation(generation), matchingId(matchingId) {}
Value *Data;
unsigned Generation;
int MatchingId;
LoadValue() : Data(nullptr), Generation(0), MatchingId(-1) {}
LoadValue(Value *Data, unsigned Generation, unsigned MatchingId)
: Data(Data), Generation(Generation), MatchingId(MatchingId) {}
};
typedef RecyclingAllocator<BumpPtrAllocator,
ScopedHashTableVal<Value *, LoadValue>>
@ -568,12 +568,12 @@ bool EarlyCSE::processNode(DomTreeNode *Node) {
// If we have an available version of this load, and if it is the right
// generation, replace this instruction.
LoadValue InVal = AvailableLoads.lookup(MemInst.getPtr());
if (InVal.data != nullptr && InVal.generation == CurrentGeneration &&
InVal.matchingId == MemInst.getMatchingId()) {
Value *Op = getOrCreateResult(InVal.data, Inst->getType());
if (InVal.Data != nullptr && InVal.Generation == CurrentGeneration &&
InVal.MatchingId == MemInst.getMatchingId()) {
Value *Op = getOrCreateResult(InVal.Data, Inst->getType());
if (Op != nullptr) {
DEBUG(dbgs() << "EarlyCSE CSE LOAD: " << *Inst
<< " to: " << *InVal.data << '\n');
<< " to: " << *InVal.Data << '\n');
if (!Inst->use_empty())
Inst->replaceAllUsesWith(Op);
Inst->eraseFromParent();