[llvm-commits] CVS: llvm/include/llvm/Support/GetElementPtrTypeIterator.h
Chris Lattner
lattner at cs.uiuc.edu
Sun Feb 22 00:31:01 PST 2004
Changes in directory llvm/include/llvm/Support:
GetElementPtrTypeIterator.h updated: 1.4 -> 1.5
---
Log message:
Significantly simplify gep_type_iterator, and make its interface more general/powerful
---
Diffs of the changes: (+24 -23)
Index: llvm/include/llvm/Support/GetElementPtrTypeIterator.h
diff -u llvm/include/llvm/Support/GetElementPtrTypeIterator.h:1.4 llvm/include/llvm/Support/GetElementPtrTypeIterator.h:1.5
--- llvm/include/llvm/Support/GetElementPtrTypeIterator.h:1.4 Thu Dec 11 22:58:13 2003
+++ llvm/include/llvm/Support/GetElementPtrTypeIterator.h Sun Feb 22 00:27:03 2004
@@ -15,8 +15,7 @@
#ifndef LLVM_SUPPORT_GETELEMENTPTRTYPE_H
#define LLVM_SUPPORT_GETELEMENTPTRTYPE_H
-#include "Support/iterator"
-#include "llvm/iMemory.h"
+#include "llvm/User.h"
#include "llvm/DerivedTypes.h"
namespace llvm {
@@ -24,30 +23,26 @@
: public forward_iterator<const Type *, ptrdiff_t> {
typedef forward_iterator<const Type*, ptrdiff_t> super;
- User *TheGEP; // Either GetElementPtrInst or ConstantExpr
+ User::op_iterator OpIt;
const Type *CurTy;
- unsigned Operand;
-
gep_type_iterator() {}
public:
- static gep_type_iterator begin(User *gep) {
+ static gep_type_iterator begin(const Type *Ty, User::op_iterator It) {
gep_type_iterator I;
- I.TheGEP = gep;
- I.CurTy = gep->getOperand(0)->getType();
- I.Operand = 1;
+ I.CurTy = Ty;
+ I.OpIt = It;
return I;
}
- static gep_type_iterator end(User *gep) {
+ static gep_type_iterator end(User::op_iterator It) {
gep_type_iterator I;
- I.TheGEP = gep;
I.CurTy = 0;
- I.Operand = gep->getNumOperands();
+ I.OpIt = It;
return I;
}
bool operator==(const gep_type_iterator& x) const {
- return Operand == x.Operand;
+ return OpIt == x.OpIt;
}
bool operator!=(const gep_type_iterator& x) const {
return !operator==(x);
@@ -61,9 +56,7 @@
// current type directly.
const Type *operator->() const { return operator*(); }
- unsigned getOperandNum() const { return Operand; }
-
- Value *getOperand() const { return TheGEP->getOperand(Operand); }
+ Value *getOperand() const { return *OpIt; }
gep_type_iterator& operator++() { // Preincrement
if (const CompositeType *CT = dyn_cast<CompositeType>(CurTy)) {
@@ -71,7 +64,7 @@
} else {
CurTy = 0;
}
- ++Operand;
+ ++OpIt;
return *this;
}
@@ -81,18 +74,26 @@
};
inline gep_type_iterator gep_type_begin(User *GEP) {
- return gep_type_iterator::begin(GEP);
+ return gep_type_iterator::begin(GEP->getOperand(0)->getType(),
+ GEP->op_begin()+1);
}
-
inline gep_type_iterator gep_type_end(User *GEP) {
- return gep_type_iterator::end(GEP);
+ return gep_type_iterator::end(GEP->op_end());
}
inline gep_type_iterator gep_type_begin(User &GEP) {
- return gep_type_iterator::begin(&GEP);
+ return gep_type_iterator::begin(GEP.getOperand(0)->getType(),
+ GEP.op_begin()+1);
}
-
inline gep_type_iterator gep_type_end(User &GEP) {
- return gep_type_iterator::end(&GEP);
+ return gep_type_iterator::end(GEP.op_end());
+ }
+ inline gep_type_iterator gep_type_begin(const Type *Op0, User::op_iterator I,
+ User::op_iterator E) {
+ return gep_type_iterator::begin(Op0, I);
+ }
+ inline gep_type_iterator gep_type_end(const Type *Op0, User::op_iterator I,
+ User::op_iterator E) {
+ return gep_type_iterator::end(E);
}
} // end namespace llvm
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