#define LLVM_IR_CALLSITE_H
#include "llvm/ADT/PointerIntPair.h"
+#include "llvm/ADT/iterator_range.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Instructions.h"
class CallSiteBase {
protected:
PointerIntPair<InstrTy*, 1, bool> I;
-public:
- CallSiteBase() : I(0, false) {}
+
+ CallSiteBase() : I(nullptr, false) {}
CallSiteBase(CallTy *CI) : I(CI, true) { assert(CI); }
CallSiteBase(InvokeTy *II) : I(II, false) { assert(II); }
- CallSiteBase(ValTy *II) { *this = get(II); }
-protected:
+ explicit CallSiteBase(ValTy *II) { *this = get(II); }
+
+private:
/// CallSiteBase::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 CallSiteBase object for something
InstrTy *getInstruction() const { return I.getPointer(); }
InstrTy *operator->() const { return I.getPointer(); }
- LLVM_EXPLICIT operator bool() const { return I.getPointer(); }
+ explicit operator bool() const { return I.getPointer(); }
/// getCalledValue - Return the pointer to function that is being called.
///
/// isCallee - Determine whether the passed iterator points to the
/// callee operand's Use.
- ///
- bool isCallee(Value::const_use_iterator UI) const {
- return getCallee() == &UI.getUse();
+ bool isCallee(Value::const_user_iterator UI) const {
+ return isCallee(&UI.getUse());
}
+ /// Determine whether this Use is the callee operand's Use.
+ bool isCallee(const Use *U) const { return getCallee() == U; }
+
ValTy *getArgument(unsigned ArgNo) const {
assert(arg_begin() + ArgNo < arg_end() && "Argument # out of range!");
return *(arg_begin() + ArgNo);
/// Given a value use iterator, returns the argument that corresponds to it.
/// Iterator must actually correspond to an argument.
- unsigned getArgumentNo(Value::const_use_iterator I) const {
+ unsigned getArgumentNo(Value::const_user_iterator I) const {
+ return getArgumentNo(&I.getUse());
+ }
+
+ /// Given a use for an argument, get the argument number that corresponds to
+ /// it.
+ unsigned getArgumentNo(const Use *U) const {
assert(getInstruction() && "Not a call or invoke instruction!");
- assert(arg_begin() <= &I.getUse() && &I.getUse() < arg_end()
+ assert(arg_begin() <= U && U < arg_end()
&& "Argument # out of range!");
- return &I.getUse() - arg_begin();
+ return U - arg_begin();
}
/// arg_iterator - The type of iterator to use when looping over actual
}
IterTy arg_end() const { return (*this)->op_end() - getArgumentEndOffset(); }
+ iterator_range<IterTy> args() const {
+ return iterator_range<IterTy>(arg_begin(), arg_end());
+ }
bool arg_empty() const { return arg_end() == arg_begin(); }
unsigned arg_size() const { return unsigned(arg_end() - arg_begin()); }
-
+
/// getType - Return the type of the instruction that generated this call site
///
Type *getType() const { return (*this)->getType(); }
///
FunTy *getCaller() const { return (*this)->getParent()->getParent(); }
+ /// \brief Tests if this call site must be tail call optimized. Only a
+ /// CallInst can be tail call optimized.
+ bool isMustTailCall() const {
+ return isCall() && cast<CallInst>(getInstruction())->isMustTailCall();
+ }
+
+ /// \brief Tests if this call site is marked as a tail call.
+ bool isTailCall() const {
+ return isCall() && cast<CallInst>(getInstruction())->isTailCall();
+ }
+
#define CALLSITE_DELEGATE_GETTER(METHOD) \
InstrTy *II = getInstruction(); \
return isCall() \
CALLSITE_DELEGATE_SETTER(setCallingConv(CC));
}
+ FunctionType *getFunctionType() const {
+ CALLSITE_DELEGATE_GETTER(getFunctionType());
+ }
+
+ void mutateFunctionType(FunctionType *Ty) const {
+ CALLSITE_DELEGATE_SETTER(mutateFunctionType(Ty));
+ }
+
/// getAttributes/setAttributes - get or set the parameter attributes of
/// the call.
const AttributeSet &getAttributes() const {
CALLSITE_DELEGATE_GETTER(getParamAlignment(i));
}
+ /// @brief Extract the number of dereferenceable bytes for a call or
+ /// parameter (0=unknown).
+ uint64_t getDereferenceableBytes(uint16_t i) const {
+ CALLSITE_DELEGATE_GETTER(getDereferenceableBytes(i));
+ }
+
+ /// @brief Extract the number of dereferenceable_or_null bytes for a call or
+ /// parameter (0=unknown).
+ uint64_t getDereferenceableOrNullBytes(uint16_t i) const {
+ CALLSITE_DELEGATE_GETTER(getDereferenceableOrNullBytes(i));
+ }
+
/// \brief Return true if the call should not be treated as a call to a
/// builtin.
bool isNoBuiltin() const {
paramHasAttr(ArgNo + 1, Attribute::ReadNone);
}
+ /// @brief Return true if the return value is known to be not null.
+ /// This may be because it has the nonnull attribute, or because at least
+ /// one byte is dereferenceable and the pointer is in addrspace(0).
+ bool isReturnNonNull() const {
+ if (paramHasAttr(0, Attribute::NonNull))
+ return true;
+ else if (getDereferenceableBytes(0) > 0 &&
+ getType()->getPointerAddressSpace() == 0)
+ return true;
+
+ return false;
+ }
+
/// hasArgument - Returns true if this CallSite passes the given Value* as an
/// argument to the called function.
bool hasArgument(const Value *Arg) const {
class CallSite : public CallSiteBase<Function, Value, User, Instruction,
CallInst, InvokeInst, User::op_iterator> {
- typedef CallSiteBase<Function, Value, User, Instruction,
- CallInst, InvokeInst, User::op_iterator> Base;
public:
CallSite() {}
- CallSite(Base B) : Base(B) {}
- CallSite(Value* V) : Base(V) {}
- CallSite(CallInst *CI) : Base(CI) {}
- CallSite(InvokeInst *II) : Base(II) {}
- CallSite(Instruction *II) : Base(II) {}
+ CallSite(CallSiteBase B) : CallSiteBase(B) {}
+ CallSite(CallInst *CI) : CallSiteBase(CI) {}
+ CallSite(InvokeInst *II) : CallSiteBase(II) {}
+ explicit CallSite(Instruction *II) : CallSiteBase(II) {}
+ explicit CallSite(Value *V) : CallSiteBase(V) {}
bool operator==(const CallSite &CS) const { return I == CS.I; }
bool operator!=(const CallSite &CS) const { return I != CS.I; }
/// ImmutableCallSite - establish a view to a call site for examination
class ImmutableCallSite : public CallSiteBase<> {
- typedef CallSiteBase<> Base;
public:
- ImmutableCallSite(const Value* V) : Base(V) {}
- ImmutableCallSite(const CallInst *CI) : Base(CI) {}
- ImmutableCallSite(const InvokeInst *II) : Base(II) {}
- ImmutableCallSite(const Instruction *II) : Base(II) {}
- ImmutableCallSite(CallSite CS) : Base(CS.getInstruction()) {}
+ ImmutableCallSite() {}
+ ImmutableCallSite(const CallInst *CI) : CallSiteBase(CI) {}
+ ImmutableCallSite(const InvokeInst *II) : CallSiteBase(II) {}
+ explicit ImmutableCallSite(const Instruction *II) : CallSiteBase(II) {}
+ explicit ImmutableCallSite(const Value *V) : CallSiteBase(V) {}
+ ImmutableCallSite(CallSite CS) : CallSiteBase(CS.getInstruction()) {}
};
-} // End llvm namespace
+} // namespace llvm
#endif
projects / oota-llvm.git / blobdiff