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Fix another minor bug, exposed by perlbmk

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12198 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-03-07 22:43:27 +00:00
parent c76d80342e
commit 7db5a6df78
1 changed files with 11 additions and 3 deletions
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14
lib/Transforms/IPO/ArgumentPromotion.cpp
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@ -136,10 +136,18 @@ bool ArgPromotion::PromoteArguments(Function *F) {
// Second check: make sure that all callers are direct callers. We can't
// transform functions that have indirect callers.
for (Value::use_iterator UI = F->use_begin(), E = F->use_end();
UI != E; ++UI)
// What about CPRs?
if (!CallSite::get(*UI).getInstruction())
UI != E; ++UI) {
CallSite CS = CallSite::get(*UI);
if (Instruction *I = CS.getInstruction()) {
// Ensure that this call site is CALLING the function, not passing it as
// an argument.
for (CallSite::arg_iterator AI = CS.arg_begin(), E = CS.arg_end();
AI != E; ++AI)
if (*AI == F) return false; // Passing the function address in!
} else {
return false; // Cannot promote an indirect call!
}
}
// Check to see which arguments are promotable. If an argument is not
// promotable, remove it from the PointerArgs vector.