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In theory the aliasee may have dead constant users

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here.  Since we only do the transform if there is
one use, strip off any such users in the hope of
making the transform fire more often.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64926 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2009-02-18 17:55:38 +00:00
parent 6210a9493a
commit 95c5d0fb0a
1 changed files with 1 additions and 0 deletions
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lib/Transforms/IPO/GlobalOpt.cpp
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@ -2383,6 +2383,7 @@ bool GlobalOpt::ResolveAliases(Module &M) {
Constant *Aliasee = J->getAliasee();
GlobalValue *Target = cast<GlobalValue>(Aliasee->stripPointerCasts());
Target->removeDeadConstantUsers();
bool hasOneUse = Target->hasOneUse() && Aliasee->hasOneUse();
// Make all users of the alias use the aliasee instead.