//===-- llvm/Support/CallSite.h - Abstract Call & Invoke instrs -*- C++ -*-===//
-//
+//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
// This file defines the CallSite class, which is a handy wrapper for code that
// NOTE: This class is supposed to have "value semantics". So it should be
// passed by value, not by reference; it should not be "new"ed or "delete"d. It
// is efficiently copyable, assignable and constructable, with cost equivalent
-// to copying a pointer. (You will notice that it has only a single data
-// member.)
+// to copying a pointer (notice that it has only a single data member).
//
//===----------------------------------------------------------------------===//
Instruction *I;
public:
CallSite() : I(0) {}
- CallSite(CallInst *CI) : I((Instruction*)CI) {}
- CallSite(InvokeInst *II) : I((Instruction*)II) {}
+ CallSite(CallInst *CI) : I(reinterpret_cast<Instruction*>(CI)) {}
+ CallSite(InvokeInst *II) : I(reinterpret_cast<Instruction*>(II)) {}
CallSite(const CallSite &CS) : I(CS.I) {}
CallSite &operator=(const CallSite &CS) { I = CS.I; return *this; }
static CallSite get(Value *V) {
if (Instruction *I = dyn_cast<Instruction>(V)) {
if (I->getOpcode() == Instruction::Call)
- return CallSite((CallInst*)I);
+ return CallSite(reinterpret_cast<CallInst*>(I));
else if (I->getOpcode() == Instruction::Invoke)
- return CallSite((InvokeInst*)I);
+ return CallSite(reinterpret_cast<InvokeInst*>(I));
}
return CallSite();
}
+ /// getCallingConv/setCallingConv - get or set the calling convention of the
+ /// call.
+ unsigned getCallingConv() const;
+ void setCallingConv(unsigned CC);
+
/// getType - Return the type of the instruction that generated this call site
///
- const Type *getType () const { return I->getType (); }
+ const Type *getType() const { return I->getType(); }
/// getInstruction - Return the instruction this call site corresponds to
///
/// getCalledFunction - Return the function being called if this is a direct
/// call, otherwise return null (if it's an indirect call).
///
- /// FIXME: This should be inlined once ConstantPointerRefs are gone. :(
- Function *getCalledFunction() const;
+ Function *getCalledFunction() const {
+ return dyn_cast<Function>(getCalledValue());
+ }
/// setCalledFunction - Set the callee to the specified value...
///
I->setOperand(0, V);
}
+ Value *getArgument(unsigned ArgNo) const {
+ assert(arg_begin() + ArgNo < arg_end() && "Argument # out of range!");
+ return *(arg_begin()+ArgNo);
+ }
+
/// arg_iterator - The type of iterator to use when looping over actual
/// arguments at this call site...
typedef User::op_iterator arg_iterator;
return I->op_begin()+3; // Skip Function, BB, BB
}
arg_iterator arg_end() const { return I->op_end(); }
- unsigned arg_size() const { return arg_end() - arg_begin(); }
+ unsigned arg_size() const { return unsigned(arg_end() - arg_begin()); }
bool operator<(const CallSite &CS) const {
return getInstruction() < CS.getInstruction();