If pass reserves all analysis info then each info is not separately
included in PreservedSet. So check getPreservesAll() first.
llvm-svn: 32319
diff --git a/llvm/lib/VMCore/PassManager.cpp b/llvm/lib/VMCore/PassManager.cpp
index 9585b0d..77820ad 100644
--- a/llvm/lib/VMCore/PassManager.cpp
+++ b/llvm/lib/VMCore/PassManager.cpp
@@ -436,8 +436,11 @@
void PMDataManager::removeNotPreservedAnalysis(Pass *P) {
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
- const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet();
+ if (AnUsage.getPreservesAll())
+ return;
+
+ const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet();
for (std::map<AnalysisID, Pass*>::iterator I = AvailableAnalysis.begin(),
E = AvailableAnalysis.end(); I != E; ++I ) {
if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) ==
@@ -470,8 +473,8 @@
/// Add pass P into the PassVector. Update
/// AvailableAnalysis appropriately if ProcessAnalysis is true.
-void PMDataManager::addPassToManager (Pass *P,
- bool ProcessAnalysis) {
+void PMDataManager::addPassToManager(Pass *P,
+ bool ProcessAnalysis) {
if (ProcessAnalysis) {
// Take a note of analysis required and made available by this pass