This loop executed exactly one time, turn it into straightline code

llvm-svn: 4159
This commit is contained in:
Chris Lattner 2002-10-14 03:28:42 +00:00
parent e2d6232e00
commit b1696e6aed

View File

@ -117,15 +117,13 @@ static struct PerModuleInfo {
// Loop over all of the uses of the GlobalValue. The only thing they are
// allowed to be is ConstantPointerRef's.
assert(OldGV->use_size() == 1 && "Only one reference should exist!");
while (!OldGV->use_empty()) {
User *U = OldGV->use_back(); // Must be a ConstantPointerRef...
ConstantPointerRef *CPR = cast<ConstantPointerRef>(U);
assert(CPR->getValue() == OldGV && "Something isn't happy");
User *U = OldGV->use_back(); // Must be a ConstantPointerRef...
ConstantPointerRef *CPR = cast<ConstantPointerRef>(U);
// Change the const pool reference to point to the real global variable
// now. This should drop a use from the OldGV.
CPR->mutateReferences(OldGV, GV);
}
// Change the const pool reference to point to the real global variable
// now. This should drop a use from the OldGV.
CPR->mutateReferences(OldGV, GV);
assert(OldGV->use_empty() && "All uses should be gone now!");
// Remove OldGV from the module...
CurrentModule->getGlobalList().remove(OldGV);