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* Convert InstWorkList to vector instead of set, because on big programs it
is empirically faster by a noticable margin, even though duplicates can happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2511 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -92,7 +92,7 @@ class SCCP : public FunctionPass, public InstVisitor<SCCP> {
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std::set<BasicBlock*> BBExecutable;// The basic blocks that are executable
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std::map<Value*, InstVal> ValueState; // The state each value is in...
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std::set<Instruction*> InstWorkList;// The instruction work list
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std::vector<Instruction*> InstWorkList;// The instruction work list
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std::vector<BasicBlock*> BBWorkList; // The BasicBlock work list
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public:
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@ -124,7 +124,7 @@ private:
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DEBUG_SCCP(cerr << "markConstant: " << V << " = " << I);
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if (ValueState[I].markConstant(V)) {
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InstWorkList.insert(I);
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InstWorkList.push_back(I);
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return true;
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}
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return false;
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@ -138,7 +138,7 @@ private:
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if (ValueState[V].markOverdefined()) {
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if (Instruction *I = dyn_cast<Instruction>(V)) {
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DEBUG_SCCP(cerr << "markOverdefined: " << V);
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InstWorkList.insert(I); // Only instructions go on the work list
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InstWorkList.push_back(I); // Only instructions go on the work list
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}
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return true;
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}
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@ -251,8 +251,8 @@ bool SCCP::runOnFunction(Function *F) {
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while (!BBWorkList.empty() || !InstWorkList.empty()) {
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// Process the instruction work list...
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while (!InstWorkList.empty()) {
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Instruction *I = *InstWorkList.begin();
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InstWorkList.erase(InstWorkList.begin());
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Instruction *I = InstWorkList.back();
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InstWorkList.pop_back();
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DEBUG_SCCP(cerr << "\nPopped off I-WL: " << I);
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