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[LSV] Nix two global (ish) variables in the LoadStoreVectorizer. NFC

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Reviewers: asbirlea

Subscribers: mzolotukhin, llvm-commits, arsenm

Differential Revision: https://reviews.llvm.org/D22532

llvm-svn: 276054
This commit is contained in:
Justin Lebar 2016-07-19 23:19:16 +00:00
parent 359116d21c
commit 79abe4d38e
1 changed files with 12 additions and 10 deletions
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18
lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
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@ -43,10 +43,10 @@ namespace {
// TODO: Remove this
static const unsigned TargetBaseAlign = 4;
class Vectorizer {
typedef SmallVector<Value *, 8> ValueList;
typedef MapVector<Value *, ValueList> ValueListMap;
class Vectorizer {
Function &F;
AliasAnalysis &AA;
DominatorTree &DT;
@ -54,8 +54,6 @@ class Vectorizer {
TargetTransformInfo &TTI;
const DataLayout &DL;
IRBuilder<> Builder;
ValueListMap StoreRefs;
ValueListMap LoadRefs;
public:
Vectorizer(Function &F, AliasAnalysis &AA, DominatorTree &DT,
@ -115,7 +113,7 @@ private:
BasicBlock::iterator To);
/// Collects load and store instructions to vectorize.
void collectInstructions(BasicBlock *BB);
std::pair<ValueListMap, ValueListMap> collectInstructions(BasicBlock *BB);
/// Processes the collected instructions, the \p Map. The elements of \p Map
/// should be all loads or all stores.
@ -198,7 +196,8 @@ bool Vectorizer::run() {
// Scan the blocks in the function in post order.
for (BasicBlock *BB : post_order(&F)) {
collectInstructions(BB);
ValueListMap LoadRefs, StoreRefs;
std::tie(LoadRefs, StoreRefs) = collectInstructions(BB);
Changed |= vectorizeChains(LoadRefs);
Changed |= vectorizeChains(StoreRefs);
}
@ -493,9 +492,10 @@ unsigned Vectorizer::getVectorizablePrefixEndIdx(ArrayRef<Value *> Chain,
return Chain.size();
}
void Vectorizer::collectInstructions(BasicBlock *BB) {
LoadRefs.clear();
StoreRefs.clear();
std::pair<ValueListMap, ValueListMap>
Vectorizer::collectInstructions(BasicBlock *BB) {
ValueListMap LoadRefs;
ValueListMap StoreRefs;
for (Instruction &I : *BB) {
if (!I.mayReadOrWriteMemory())
@ -569,6 +569,8 @@ void Vectorizer::collectInstructions(BasicBlock *BB) {
StoreRefs[ObjPtr].push_back(SI);
}
}
return {LoadRefs, StoreRefs};
}
bool Vectorizer::vectorizeChains(ValueListMap &Map) {