Phung Nguyen schrieb: > Dear all, > > I am porting GCC to a new target. I don't know how to get attribute of > callee of a call. > > I defined a new attribute to assign to a function but when writing for > pattern name "call" or "call_value", I don't know how to know if the > callee is assigned the attribute. As the code for the call depends on > the attribute of the callee, I need to get the corresponding function > decl tree. As the operand of "call" or "call_value" might be > SYMBOL_REF (direct call) or REG (indirect call), I don't know how to > get the function declaration (fndecl). > > Could you please advise me a solution for it? I highly appreciate your help.
Try this: -- Store that info in the CUMULATIVE_ARGS object -- Pass the info in a "call cookie" as last argument of the function like this: FUNCTION_ARG resp. FUNCTION_ARG_ADVANCE get called with mode=VOIDmode. Return a CONST_INT and evaluate the respective operand of call insn resp. call_calue insn.
