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Use a DenseMap instead of a std::map for AnalysisID -> Pass* maps. This reduces the pass-manager overhead from FPPassManager::runOnFunction() by about 10%.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176072 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Ilseman
2013-02-26 01:31:59 +00:00
parent 70cdcd5114
commit ce522ee0a2
2 changed files with 9 additions and 10 deletions
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7
include/llvm/PassManagers.h
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@@ -352,7 +352,7 @@ public:
return PMT_Unknown;
}
std::map<AnalysisID, Pass*> *getAvailableAnalysis() {
DenseMap<AnalysisID, Pass*> *getAvailableAnalysis() {
return &AvailableAnalysis;
}
@@ -375,8 +375,7 @@ protected:
// Collection of Analysis provided by Parent pass manager and
// used by current pass manager. At at time there can not be more
// then PMT_Last active pass mangers.
std::map<AnalysisID, Pass *> *InheritedAnalysis[PMT_Last];
DenseMap<AnalysisID, Pass *> *InheritedAnalysis[PMT_Last];
/// isPassDebuggingExecutionsOrMore - Return true if -debug-pass=Executions
/// or higher is specified.
@@ -390,7 +389,7 @@ private:
// pass. If a pass requires an analysis which is not available then
// the required analysis pass is scheduled to run before the pass itself is
// scheduled to run.
std::map<AnalysisID, Pass*> AvailableAnalysis;
DenseMap<AnalysisID, Pass*> AvailableAnalysis;
// Collection of higher level analysis used by the pass managed by
// this manager.