/// function is automatically inserted into the end of the function list for
/// the module.
///
- Function(const FunctionType *Ty, LinkageTypes Linkage,
+ Function(FunctionType *Ty, LinkageTypes Linkage,
const Twine &N = "", Module *M = 0);
public:
- static Function *Create(const FunctionType *Ty, LinkageTypes Linkage,
+ static Function *Create(FunctionType *Ty, LinkageTypes Linkage,
const Twine &N = "", Module *M = 0) {
return new(0) Function(Ty, Linkage, N, M);
}
~Function();
- const Type *getReturnType() const; // Return the type of the ret val
- const FunctionType *getFunctionType() const; // Return the FunctionType for me
+ Type *getReturnType() const; // Return the type of the ret val
+ FunctionType *getFunctionType() const; // Return the FunctionType for me
/// getContext - Return a pointer to the LLVMContext associated with this
/// function, or NULL if this function is not bound to a context yet.
/// arguments.
bool isVarArg() const;
- /// isDeclaration - Is the body of this function unknown? (The basic block
- /// list is empty if so.) This is true for function declarations, but not
- /// true for function definitions.
- ///
- virtual bool isDeclaration() const { return BasicBlocks.empty(); }
-
/// getIntrinsicID - This method returns the ID number of the specified
/// function, or Intrinsic::not_intrinsic if the function is not an
/// instrinsic, or if the pointer is null. This value is always defined to be
/// The particular intrinsic functions which correspond to this value are
/// defined in llvm/Intrinsics.h.
///
- unsigned getIntrinsicID() const LLVM_ATTRIBUTE_READONLY;
+ unsigned getIntrinsicID() const LLVM_READONLY;
bool isIntrinsic() const { return getIntrinsicID() != 0; }
/// getCallingConv()/setCallingConv(CC) - These method get and set the
else removeFnAttr(Attribute::NoUnwind);
}
+ /// @brief True if the ABI mandates (or the user requested) that this
+ /// function be in a unwind table.
+ bool hasUWTable() const {
+ return hasFnAttr(Attribute::UWTable);
+ }
+ void setHasUWTable(bool HasUWTable = true) {
+ if (HasUWTable)
+ addFnAttr(Attribute::UWTable);
+ else
+ removeFnAttr(Attribute::UWTable);
+ }
+
+ /// @brief True if this function needs an unwind table.
+ bool needsUnwindTableEntry() const {
+ return hasUWTable() || !doesNotThrow();
+ }
+
/// @brief Determine if the function returns a structure through first
/// pointer argument.
bool hasStructRetAttr() const {
void dropAllReferences();
/// hasAddressTaken - returns true if there are any uses of this function
- /// other than direct calls or invokes to it. Optionally passes back the
- /// offending user for diagnostic purposes.
+ /// other than direct calls or invokes to it, or blockaddress expressions.
+ /// Optionally passes back an offending user for diagnostic purposes.
///
bool hasAddressTaken(const User** = 0) const;
+ /// isDefTriviallyDead - Return true if it is trivially safe to remove
+ /// this function definition from the module (because it isn't externally
+ /// visible, does not have its address taken, and has no callers). To make
+ /// this more accurate, call removeDeadConstantUsers first.
+ bool isDefTriviallyDead() const;
+
/// callsFunctionThatReturnsTwice - Return true if the function has a call to
/// setjmp or other function that gcc recognizes as "returning twice".
bool callsFunctionThatReturnsTwice() const;