uncheckedReplaceAllUsesWith(New);
}
+Value *Value::stripPointerCasts() {
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(this)) {
+ if (CE->getOpcode() == Instruction::BitCast) {
+ if (isa<PointerType>(CE->getOperand(0)->getType()))
+ return CE->getOperand(0)->stripPointerCasts();
+ } else if (CE->getOpcode() == Instruction::GetElementPtr) {
+ for (unsigned i = 1, e = CE->getNumOperands(); i != e; ++i)
+ if (!CE->getOperand(i)->isNullValue())
+ return this;
+ return CE->getOperand(0)->stripPointerCasts();
+ }
+ return this;
+ }
+
+ if (BitCastInst *CI = dyn_cast<BitCastInst>(this)) {
+ if (isa<PointerType>(CI->getOperand(0)->getType()))
+ return CI->getOperand(0)->stripPointerCasts();
+ } else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(this)) {
+ if (GEP->hasAllZeroIndices())
+ return GEP->getOperand(0)->stripPointerCasts();
+ }
+ return this;
+}
+
//===----------------------------------------------------------------------===//
// User Class
//===----------------------------------------------------------------------===//
setOperand(i, To); // Fix it now...
}
}
-
-//===----------------------------------------------------------------------===//
-// Utility functions
-//===----------------------------------------------------------------------===//
-
-Value *llvm::StripPointerCasts(Value *Ptr) {
- if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ptr)) {
- if (CE->getOpcode() == Instruction::BitCast) {
- if (isa<PointerType>(CE->getOperand(0)->getType()))
- return StripPointerCasts(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 Ptr;
- return StripPointerCasts(CE->getOperand(0));
- }
- return Ptr;
- }
-
- if (BitCastInst *CI = dyn_cast<BitCastInst>(Ptr)) {
- if (isa<PointerType>(CI->getOperand(0)->getType()))
- return StripPointerCasts(CI->getOperand(0));
- } else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(Ptr)) {
- if (GEP->hasAllZeroIndices())
- return StripPointerCasts(GEP->getOperand(0));
- }
- return Ptr;
-}