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Trying to get the dsgraph for an external function is bad for DSA's health

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9979 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-11-13 18:48:11 +00:00
parent cf95d4fe42
commit a366c98077
1 changed files with 12 additions and 11 deletions
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23
lib/Analysis/DataStructure/CompleteBottomUp.cpp
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@ -116,17 +116,18 @@ unsigned CompleteBUDataStructures::calculateSCCGraphs(DSGraph &FG,
// Loop over all of the actually called functions...
ActualCalleesTy::iterator I, E;
for (tie(I, E) = ActualCallees.equal_range(Call); I != E; ++I) {
DSGraph &Callee = getOrCreateGraph(*I->second);
unsigned M;
// Have we visited the destination function yet?
hash_map<DSGraph*, unsigned>::iterator It = ValMap.find(&Callee);
if (It == ValMap.end()) // No, visit it now.
M = calculateSCCGraphs(Callee, Stack, NextID, ValMap);
else // Yes, get it's number.
M = It->second;
if (M < Min) Min = M;
}
for (tie(I, E) = ActualCallees.equal_range(Call); I != E; ++I)
if (!I->second->isExternal()) {
DSGraph &Callee = getOrCreateGraph(*I->second);
unsigned M;
// Have we visited the destination function yet?
hash_map<DSGraph*, unsigned>::iterator It = ValMap.find(&Callee);
if (It == ValMap.end()) // No, visit it now.
M = calculateSCCGraphs(Callee, Stack, NextID, ValMap);
else // Yes, get it's number.
M = It->second;
if (M < Min) Min = M;
}
}
assert(ValMap[&FG] == MyID && "SCC construction assumption wrong!");