class CallInst;
class InvokeInst;
-class ParamAttrsList;
class CallSite {
Instruction *I;
CallSite(const CallSite &CS) : I(CS.I) {}
CallSite &operator=(const CallSite &CS) { I = CS.I; return *this; }
+ bool operator==(const CallSite &CS) const { return I == CS.I; }
+ bool operator!=(const CallSite &CS) const { return I != CS.I; }
+
/// CallSite::get - This static method is sort of like a constructor. It will
/// create an appropriate call site for a Call or Invoke instruction, but it
/// can also create a null initialized CallSite object for something which is
/// getParamAttrs/setParamAttrs - get or set the parameter attributes of
/// the call.
- const ParamAttrsList *getParamAttrs() const;
- void setParamAttrs(const ParamAttrsList *PAL);
+ const PAListPtr &getParamAttrs() const;
+ void setParamAttrs(const PAListPtr &PAL);
/// paramHasAttr - whether the call or the callee has the given attribute.
bool paramHasAttr(uint16_t i, ParameterAttributes attr) const;
+ /// @brief Extract the alignment for a call or parameter (0=unknown).
+ uint16_t getParamAlignment(uint16_t i) const;
+
/// @brief Determine if the call does not access memory.
bool doesNotAccessMemory() const;
+ void setDoesNotAccessMemory(bool doesNotAccessMemory = true);
/// @brief Determine if the call does not access or only reads memory.
bool onlyReadsMemory() const;
+ void setOnlyReadsMemory(bool onlyReadsMemory = true);
+
+ /// @brief Determine if the call cannot return.
+ bool doesNotReturn() const;
+ void setDoesNotReturn(bool doesNotReturn = true);
/// @brief Determine if the call cannot unwind.
bool doesNotThrow() const;
void setArgument(unsigned ArgNo, Value* newVal) {
assert(I && "Not a call or invoke instruction!");
assert(arg_begin() + ArgNo < arg_end() && "Argument # out of range!");
- if (I->getOpcode() == Instruction::Call)
- I->setOperand(ArgNo+1, newVal); // Skip Function
- else
- I->setOperand(ArgNo+3, newVal); // Skip Function, BB, BB
+ I->setOperand(getArgumentOffset() + ArgNo, newVal);
}
+ /// Given an operand number, returns the argument that corresponds to it.
+ /// OperandNo must be a valid operand number that actually corresponds to an
+ /// argument.
+ unsigned getArgumentNo(unsigned OperandNo) const {
+ assert(OperandNo >= getArgumentOffset() && "Operand number passed was not "
+ "a valid argument");
+ return OperandNo - getArgumentOffset();
+ }
+
+ /// hasArgument - Returns true if this CallSite passes the given Value* as an
+ /// argument to the called function.
+ bool hasArgument(const Value *Arg) const;
+
/// arg_iterator - The type of iterator to use when looping over actual
/// arguments at this call site...
typedef User::op_iterator arg_iterator;
/// arg_begin/arg_end - Return iterators corresponding to the actual argument
/// list for a call site.
- ///
arg_iterator arg_begin() const {
assert(I && "Not a call or invoke instruction!");
- if (I->getOpcode() == Instruction::Call)
- return I->op_begin()+1; // Skip Function
- else
- return I->op_begin()+3; // Skip Function, BB, BB
+ return I->op_begin() + getArgumentOffset(); // Skip non-arguments
}
+
arg_iterator arg_end() const { return I->op_end(); }
bool arg_empty() 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();
}
+
+private:
+ /// Returns the operand number of the first argument
+ unsigned getArgumentOffset() const {
+ if (I->getOpcode() == Instruction::Call)
+ return 1; // Skip Function
+ else
+ return 3; // Skip Function, BB, BB
+ }
};
} // End llvm namespace