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Fix a nasty bug where the ConstantMerge pass was invalidating the TargetData pass

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even though it was immutable.  Immutable passes should never end up in CurrentAnalyses!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5906 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-04-24 20:07:38 +00:00
parent a148ccb158
commit a172846d3a
1 changed files with 25 additions and 13 deletions
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38
lib/VMCore/PassManagerT.h
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@ -332,12 +332,32 @@ public:
}
}
Pass *getImmutablePassOrNull(const PassInfo *ID) const {
for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) {
const PassInfo *IPID = ImmutablePasses[i]->getPassInfo();
if (IPID == ID)
return ImmutablePasses[i];
// This pass is the current implementation of all of the interfaces it
// implements as well.
//
const std::vector<const PassInfo*> &II =
IPID->getInterfacesImplemented();
for (unsigned j = 0, e = II.size(); j != e; ++j)
if (II[j] == ID) return ImmutablePasses[i];
}
return 0;
}
Pass *getAnalysisOrNullDown(const PassInfo *ID) const {
std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(ID);
if (I != CurrentAnalyses.end())
return I->second; // Found it.
if (Pass *P = getImmutablePassOrNull(ID))
return P;
if (Batcher)
return ((AnalysisResolver*)Batcher)->getAnalysisOrNullDown(ID);
return 0;
@ -350,6 +370,8 @@ public:
if (Parent) // Try scanning...
return Parent->getAnalysisOrNullUp(ID);
else if (!ImmutablePasses.empty())
return getImmutablePassOrNull(ID);
return 0;
}
@ -386,7 +408,9 @@ public:
if (Parent) {
Parent->markPassUsed(P, this);
} else {
assert(0 && "Pass available but not found! "
assert(getAnalysisOrNullUp(P) &&
dynamic_cast<ImmutablePass*>(getAnalysisOrNullUp(P)) &&
"Pass available but not found! "
"Perhaps this is a module pass requiring a function pass?");
}
}
@ -556,18 +580,6 @@ public:
// Initialize the immutable pass...
IP->initializePass();
// Add this pass to the currently available set...
if (const PassInfo *PI = IP->getPassInfo()) {
CurrentAnalyses[PI] = IP;
// This pass is the current implementation of all of the interfaces it
// implements as well.
//
const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented();
for (unsigned i = 0, e = II.size(); i != e; ++i)
CurrentAnalyses[II[i]] = IP;
}
}
};