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code cleanup

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135157 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2011-07-14 18:01:49 +00:00
parent 9dec507ecb
commit 9854e1bebe
1 changed files with 15 additions and 20 deletions
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35
lib/VMCore/Globals.cpp
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@ -210,31 +210,26 @@ bool GlobalAlias::isDeclaration() const {
return false;
}
void GlobalAlias::setAliasee(Constant *Aliasee)
{
if (Aliasee)
assert(Aliasee->getType() == getType() &&
"Alias and aliasee types should match!");
void GlobalAlias::setAliasee(Constant *Aliasee) {
assert((!Aliasee || Aliasee->getType() == getType()) &&
"Alias and aliasee types should match!");
setOperand(0, Aliasee);
}
const GlobalValue *GlobalAlias::getAliasedGlobal() const {
const Constant *C = getAliasee();
if (C) {
if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
return GV;
else {
const ConstantExpr *CE = 0;
if ((CE = dyn_cast<ConstantExpr>(C)) &&
(CE->getOpcode() == Instruction::BitCast ||
CE->getOpcode() == Instruction::GetElementPtr))
return dyn_cast<GlobalValue>(CE->getOperand(0));
else
llvm_unreachable("Unsupported aliasee");
}
}
return 0;
if (C == 0) return 0;
if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
return GV;
const ConstantExpr *CE = cast<ConstantExpr>(C);
assert((CE->getOpcode() == Instruction::BitCast ||
CE->getOpcode() == Instruction::GetElementPtr) &&
"Unsupported aliasee");
return dyn_cast<GlobalValue>(CE->getOperand(0));
}
const GlobalValue *GlobalAlias::resolveAliasedGlobal(bool stopOnWeak) const {
@ -255,7 +250,7 @@ const GlobalValue *GlobalAlias::resolveAliasedGlobal(bool stopOnWeak) const {
GV = GA->getAliasedGlobal();
if (!Visited.insert(GV))
return NULL;
return 0;
}
return GV;