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Remove ExtractGlobalVariable - use StripPointerCasts

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instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37937 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2007-07-06 09:10:03 +00:00
parent 33b0b8d242
commit b4fd45e2fc
1 changed files with 3 additions and 20 deletions
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23
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -2491,27 +2491,10 @@ void SelectionDAGLowering::visitTargetIntrinsic(CallInst &I,
}
}
/// ExtractGlobalVariable - If V is a global variable, or a bitcast of one
/// (possibly constant folded), return it. Otherwise return NULL.
static GlobalVariable *ExtractGlobalVariable (Value *V) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
return GV;
else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
if (CE->getOpcode() == Instruction::BitCast)
return dyn_cast<GlobalVariable>(CE->getOperand(0));
else if (CE->getOpcode() == Instruction::GetElementPtr) {
for (unsigned i = 1, e = CE->getNumOperands(); i != e; ++i)
if (!CE->getOperand(i)->isNullValue())
return NULL;
return dyn_cast<GlobalVariable>(CE->getOperand(0));
}
}
return NULL;
}
/// ExtractTypeInfo - Extracts the type info from a value.
/// ExtractTypeInfo - Returns the type info, possibly bitcast, encoded in V.
static GlobalVariable *ExtractTypeInfo (Value *V) {
GlobalVariable *GV = ExtractGlobalVariable(V);
V = IntrinsicInst::StripPointerCasts(V);
GlobalVariable *GV = dyn_cast<GlobalVariable>(V);
assert (GV || isa<ConstantPointerNull>(V) &&
"TypeInfo must be a global variable or NULL");
return GV;