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Update the 'used' flag correctly

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-10-22 04:43:18 +00:00
parent 4cb766af4a
commit 6be5e567ce
1 changed files with 7 additions and 6 deletions
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13
lib/Transforms/IPO/FunctionResolution.cpp
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@ -245,24 +245,25 @@ bool FunctionResolvingPass::run(Module &M) {
// algorithm here to avoid problems with iterators getting invalidated if we // algorithm here to avoid problems with iterators getting invalidated if we
// did a one pass scheme. // did a one pass scheme.
// //
bool Changed = false;
for (Module::iterator I = M.begin(), E = M.end(); I != E; ) { for (Module::iterator I = M.begin(), E = M.end(); I != E; ) {
Function *F = I++; Function *F = I++;
if (F->use_empty() && F->isExternal()) if (F->use_empty() && F->isExternal()) {
M.getFunctionList().erase(F); M.getFunctionList().erase(F);
else if (!F->hasInternalLinkage() && !F->getName().empty()) Changed = true;
} else if (!F->hasInternalLinkage() && !F->getName().empty())
Globals[F->getName()].push_back(F); Globals[F->getName()].push_back(F);
} }
for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ) { for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ) {
GlobalVariable *GV = I++; GlobalVariable *GV = I++;
if (GV->use_empty() && GV->isExternal()) if (GV->use_empty() && GV->isExternal()) {
M.getGlobalList().erase(GV); M.getGlobalList().erase(GV);
else if (!GV->hasInternalLinkage() && !GV->getName().empty()) Changed = true;
} else if (!GV->hasInternalLinkage() && !GV->getName().empty())
Globals[GV->getName()].push_back(GV); Globals[GV->getName()].push_back(GV);
} }
bool Changed = false;
TargetData &TD = getAnalysis<TargetData>(); TargetData &TD = getAnalysis<TargetData>();
// Now we have a list of all functions with a particular name. If there is // Now we have a list of all functions with a particular name. If there is