Hi all, How can I find a FUNCTION_DECL node from a CALL_EXPR node for virtual function calls?
Note: I am not after the node for the function that will be executed at runtime as I know this is not possible to determine in most situations. Thanks for any help in advance, Brendon. ----------------------- I have tried the following: When I encounter a CALL_EXPR for a virtual function call, I can get the index for the virtual function table from the OBJ_TYPE_REF object operand: 2 is an INTEGER_CST that seems to have a different index for the various virtual functions. However I need to find the FUNCTION_DECL node that is associated with a particular type with the given virtual function table index. For example if I have a index value of: 1 that I have obtained from the OBJ_TYPE_REF node operand 2 I can also get the METHOD_TYPE node and thus get the RECORD_TYPE node for the object. How can I find the FUNCTION_DECL node given the virtual table index of the function and the classes RECORD_TYPE node? * I have tried using class.c: get_vcall_index() but it seems to return negative integers. * I have also looked in the TYPE_BINFO with the BINFO_VIRTUALS for the BV_CALL_INDEX but that is NULL. * I have also tried using CLASSTYPE_VCALL_INDICES and all these have failed to give me a value that seems correct.
