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Fix a bug John tracked down in libstdc++ where we were incorrectly deleting

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weak functions.  Thanks for finding this John!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16997 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-10-14 19:53:50 +00:00
parent 59e12ed789
commit b23cd2f688
1 changed files with 2 additions and 1 deletions
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lib/Transforms/IPO/GlobalOpt.cpp
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@ -808,7 +808,8 @@ bool GlobalOpt::runOnModule(Module &M) {
for (Module::iterator FI = M.begin(), E = M.end(); FI != E; ) { for (Module::iterator FI = M.begin(), E = M.end(); FI != E; ) {
Function *F = FI++; Function *F = FI++;
F->removeDeadConstantUsers(); F->removeDeadConstantUsers();
if (F->use_empty() && (F->hasInternalLinkage() || F->hasWeakLinkage())) { if (F->use_empty() && (F->hasInternalLinkage() ||
F->hasLinkOnceLinkage())) {
M.getFunctionList().erase(F); M.getFunctionList().erase(F);
LocalChange = true; LocalChange = true;
++NumFnDeleted; ++NumFnDeleted;