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Replace dyn_castGetElementPtr with dyn_cast<GEPOperator>.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77286 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-07-28 00:37:50 +00:00
parent a195b7ffd6
commit 04d5544034
1 changed files with 5 additions and 15 deletions
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20
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -628,16 +628,6 @@ static inline Value *dyn_castFoldableMul(Value *V, ConstantInt *&CST,
return 0;
}
/// dyn_castGetElementPtr - If this is a getelementptr instruction or constant
/// expression, return it.
static User *dyn_castGetElementPtr(Value *V) {
if (isa<GetElementPtrInst>(V)) return cast<User>(V);
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V))
if (CE->getOpcode() == Instruction::GetElementPtr)
return cast<User>(V);
return false;
}
/// AddOne - Add one to a ConstantInt
static Constant *AddOne(Constant *C, LLVMContext *Context) {
return Context->getConstantExprAdd(C,
@ -5572,7 +5562,7 @@ static Value *EvaluateGEPOffsetExpression(User *GEP, Instruction &I,
Instruction *InstCombiner::FoldGEPICmp(User *GEPLHS, Value *RHS,
ICmpInst::Predicate Cond,
Instruction &I) {
assert(dyn_castGetElementPtr(GEPLHS) && "LHS is not a getelementptr!");
assert(isa<GEPOperator>(GEPLHS) && "LHS is not a getelementptr!");
// Look through bitcasts.
if (BitCastInst *BCI = dyn_cast<BitCastInst>(RHS))
@ -5590,7 +5580,7 @@ Instruction *InstCombiner::FoldGEPICmp(User *GEPLHS, Value *RHS,
Offset = EmitGEPOffset(GEPLHS, I, *this);
return new ICmpInst(*Context, ICmpInst::getSignedPredicate(Cond), Offset,
Context->getNullValue(Offset->getType()));
} else if (User *GEPRHS = dyn_castGetElementPtr(RHS)) {
} else if (User *GEPRHS = dyn_cast<GEPOperator>(RHS)) {
// If the base pointers are different, but the indices are the same, just
// compare the base pointer.
if (PtrBase != GEPRHS->getOperand(0)) {
@ -6355,10 +6345,10 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
}
// If we can optimize a 'icmp GEP, P' or 'icmp P, GEP', do so now.
if (User *GEP = dyn_castGetElementPtr(Op0))
if (User *GEP = dyn_cast<GEPOperator>(Op0))
if (Instruction *NI = FoldGEPICmp(GEP, Op1, I.getPredicate(), I))
return NI;
if (User *GEP = dyn_castGetElementPtr(Op1))
if (User *GEP = dyn_cast<GEPOperator>(Op1))
if (Instruction *NI = FoldGEPICmp(GEP, Op0,
ICmpInst::getSwappedPredicate(I.getPredicate()), I))
return NI;
@ -11065,7 +11055,7 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
// getelementptr instructions into a single instruction.
//
SmallVector<Value*, 8> SrcGEPOperands;
if (User *Src = dyn_castGetElementPtr(PtrOp))
if (User *Src = dyn_cast<GEPOperator>(PtrOp))
SrcGEPOperands.append(Src->op_begin(), Src->op_end());
if (!SrcGEPOperands.empty()) {