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simplify this code, it is still broken but will follow up on llvm-commits.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123558 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2011-01-16 02:05:10 +00:00
parent c850965ec0
commit d5f656f48b
1 changed files with 5 additions and 15 deletions
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20
lib/Transforms/IPO/GlobalOpt.cpp
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@ -2169,16 +2169,10 @@ static bool isSimpleEnoughPointerToCommit(Constant *C) {
// and we know how to evaluate it by moving the bitcast from the pointer // and we know how to evaluate it by moving the bitcast from the pointer
// operand to the value operand. // operand to the value operand.
} else if (CE->getOpcode() == Instruction::BitCast && } else if (CE->getOpcode() == Instruction::BitCast &&
isa<GlobalVariable>(CE->getOperand(0)) && isa<GlobalVariable>(CE->getOperand(0))) {
CE->getType()->isPointerTy() &&
CE->getOperand(0)->getType()->isPointerTy()) {
GlobalVariable *GV = cast<GlobalVariable>(CE->getOperand(0));
// Do not allow weak/*_odr/linkonce/dllimport/dllexport linkage or // Do not allow weak/*_odr/linkonce/dllimport/dllexport linkage or
// external globals. // external globals.
if (!GV->hasUniqueInitializer()) return cast<GlobalVariable>(CE->getOperand(0))->hasUniqueInitializer();
return false;
return true;
} }
} }
@ -2360,12 +2354,9 @@ static bool EvaluateFunction(Function *F, Constant *&RetVal,
// If we're evaluating a store through a bitcast, then we need // If we're evaluating a store through a bitcast, then we need
// to pull the bitcast off the pointer type and push it onto the // to pull the bitcast off the pointer type and push it onto the
// stored value. // stored value.
Ptr = dyn_cast<Constant>(Ptr->getOperand(0)); Ptr = CE->getOperand(0);
if (!Ptr) return false;
const PointerType *Ty = dyn_cast<PointerType>(Ptr->getType()); const Type *NewTy=cast<PointerType>(Ptr->getType())->getElementType();
if (!Ty) return false;
const Type *NewTy = Ty->getElementType();
// A bitcast'd pointer implicitly points to the first field of a // A bitcast'd pointer implicitly points to the first field of a
// struct. Insert implicity "gep @x, 0, 0, ..." until we get down // struct. Insert implicity "gep @x, 0, 0, ..." until we get down
@ -2374,8 +2365,7 @@ static bool EvaluateFunction(Function *F, Constant *&RetVal,
while (const StructType *STy = dyn_cast<StructType>(NewTy)) { while (const StructType *STy = dyn_cast<StructType>(NewTy)) {
NewTy = STy->getTypeAtIndex(0U); NewTy = STy->getTypeAtIndex(0U);
const IntegerType *IdxTy = const IntegerType *IdxTy =IntegerType::get(NewTy->getContext(), 32);
IntegerType::get(NewTy->getContext(), 32);
Constant *IdxZero = ConstantInt::get(IdxTy, 0, false); Constant *IdxZero = ConstantInt::get(IdxTy, 0, false);
Constant * const IdxList[] = {IdxZero, IdxZero}; Constant * const IdxList[] = {IdxZero, IdxZero};