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Reduce double set lookups.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230798 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2015-02-27 21:43:14 +00:00
parent 7c9c6ed761
commit 9f9dcf8046
3 changed files with 3 additions and 6 deletions
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3
include/llvm/ADT/DepthFirstIterator.h
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@ -113,9 +113,8 @@ private:
while (It != GT::child_end(Node)) { while (It != GT::child_end(Node)) {
NodeType *Next = *It++; NodeType *Next = *It++;
// Has our next sibling been visited? // Has our next sibling been visited?
if (Next && !this->Visited.count(Next)) { if (Next && this->Visited.insert(Next).second) {
// No, do it now. // No, do it now.
this->Visited.insert(Next);
VisitStack.push_back(std::make_pair(PointerIntTy(Next, 0), VisitStack.push_back(std::make_pair(PointerIntTy(Next, 0),
GT::child_begin(Next))); GT::child_begin(Next)));
return; return;

3
lib/Analysis/LazyValueInfo.cpp
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@ -346,11 +346,10 @@ namespace {
/// Push BV onto BlockValueStack unless it's already in there. /// Push BV onto BlockValueStack unless it's already in there.
/// Returns true on success. /// Returns true on success.
bool pushBlockValue(const std::pair<BasicBlock *, Value *> &BV) { bool pushBlockValue(const std::pair<BasicBlock *, Value *> &BV) {
if (BlockValueSet.count(BV)) if (!BlockValueSet.insert(BV).second)
return false; // It's already in the stack. return false; // It's already in the stack.
BlockValueStack.push(BV); BlockValueStack.push(BV);
BlockValueSet.insert(BV);
return true; return true;
} }

3
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
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@ -622,8 +622,7 @@ public:
void removeValue(const Value *V) { void removeValue(const Value *V) {
// This is to support hack in lowerCallFromStatepoint // This is to support hack in lowerCallFromStatepoint
// Should be removed when hack is resolved // Should be removed when hack is resolved
if (NodeMap.count(V)) NodeMap.erase(V);
NodeMap.erase(V);
} }
void setUnusedArgValue(const Value *V, SDValue NewN) { void setUnusedArgValue(const Value *V, SDValue NewN) {