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Avoid using Loop::getSubLoopsVector.

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Passes should never modify it, just use the const version. While there
reduce copying in LoopInterchange. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242041 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2015-07-13 17:21:14 +00:00
parent af8cf90e2f
commit ed5546e50b
2 changed files with 7 additions and 7 deletions
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12
lib/Transforms/Scalar/LoopInterchange.cpp
View File

@ -282,21 +282,21 @@ static void populateWorklist(Loop &L, SmallVector<LoopVector, 8> &V) {
DEBUG(dbgs() << "Calling populateWorklist called\n");
LoopVector LoopList;
Loop *CurrentLoop = &L;
std::vector<Loop *> vec = CurrentLoop->getSubLoopsVector();
while (vec.size() != 0) {
const std::vector<Loop *> *Vec = &CurrentLoop->getSubLoops();
while (!Vec->empty()) {
// The current loop has multiple subloops in it hence it is not tightly
// nested.
// Discard all loops above it added into Worklist.
if (vec.size() != 1) {
if (Vec->size() != 1) {
LoopList.clear();
return;
}
LoopList.push_back(CurrentLoop);
CurrentLoop = *(vec.begin());
vec = CurrentLoop->getSubLoopsVector();
CurrentLoop = Vec->front();
Vec = &CurrentLoop->getSubLoops();
}
LoopList.push_back(CurrentLoop);
V.push_back(LoopList);
V.push_back(std::move(LoopList));
}
static PHINode *getInductionVariable(Loop *L, ScalarEvolution *SE) {

2
lib/Transforms/Vectorize/LoopVectorize.cpp
View File

@ -3807,7 +3807,7 @@ bool LoopVectorizationLegality::canVectorize() {
}
// We can only vectorize innermost loops.
if (!TheLoop->getSubLoopsVector().empty()) {
if (!TheLoop->empty()) {
emitAnalysis(VectorizationReport() << "loop is not the innermost loop");
return false;
}