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Basic PassManager diagnostics.
Added asserts whenever attempting to use a potentially uninitialized pass. This helps people trying to develop a new pass and people trying to understand the bug reports filed by the former people. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132520 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -632,6 +632,7 @@ void PMTopLevelManager::schedulePass(Pass *P) {
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Pass *AnalysisPass = findAnalysisPass(*I);
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if (!AnalysisPass) {
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const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(*I);
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assert(PI && "Expected required passes to be initialized");
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AnalysisPass = PI->createPass();
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if (P->getPotentialPassManagerType () ==
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AnalysisPass->getPotentialPassManagerType())
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@ -686,6 +687,7 @@ Pass *PMTopLevelManager::findAnalysisPass(AnalysisID AID) {
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// If Pass not found then check the interfaces implemented by Immutable Pass
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const PassInfo *PassInf =
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PassRegistry::getPassRegistry()->getPassInfo(PI);
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assert(PassInf && "Expected all immutable passes to be initialized");
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const std::vector<const PassInfo*> &ImmPI =
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PassInf->getInterfacesImplemented();
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for (std::vector<const PassInfo*>::const_iterator II = ImmPI.begin(),
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@ -727,9 +729,11 @@ void PMTopLevelManager::dumpArguments() const {
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for (SmallVector<ImmutablePass *, 8>::const_iterator I =
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ImmutablePasses.begin(), E = ImmutablePasses.end(); I != E; ++I)
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if (const PassInfo *PI =
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PassRegistry::getPassRegistry()->getPassInfo((*I)->getPassID()))
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PassRegistry::getPassRegistry()->getPassInfo((*I)->getPassID())) {
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assert(PI && "Expected all immutable passes to be initialized");
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if (!PI->isAnalysisGroup())
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dbgs() << " -" << PI->getPassArgument();
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}
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for (SmallVector<PMDataManager *, 8>::const_iterator I = PassManagers.begin(),
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E = PassManagers.end(); I != E; ++I)
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(*I)->dumpPassArguments();
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@ -1183,6 +1187,12 @@ void PMDataManager::dumpAnalysisUsage(StringRef Msg, const Pass *P,
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for (unsigned i = 0; i != Set.size(); ++i) {
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if (i) dbgs() << ',';
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const PassInfo *PInf = PassRegistry::getPassRegistry()->getPassInfo(Set[i]);
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if (!PInf) {
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// Some preserved passes, such as AliasAnalysis, may not be initialized by
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// all drivers.
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dbgs() << " Uninitialized Pass";
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continue;
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}
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dbgs() << ' ' << PInf->getPassName();
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}
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dbgs() << '\n';
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