this information is based on c-tree, not on GIMPLE, but they look very similar. (at least the initial version of GIMPLE, there seem to be hooks to convert it I've read somewhere)
rohan shah schrieb:
Sir, there is something which i would like to point out There is no declaration of a structure in GIMPLE For eg if the C file has struct a { int x,y; };
the corrosponding GIMPLE representation is just
typedef struct a struct struct a (even if the typedef is not present in the C file !!!)
gcc creates artificial type_decl's for structs. you can test with DECL_ARTIFICIAL if it's a typedef in source code.
if(DECL_ARTIFICIAL) TREE_TYPE is a record_type or a union_type
Another thing is that in a function declaration the type of the parameters is not specified in gimple
there are two lists which represent the parameters of a function_decl:
both of them are lists connected with TREE_CHAIN DECL_ARGUMENTS(function_decl): TREE_TYPE: type DECL_NAME: name
TYPE_ARG_TYPES(TREE_TYPE(function_decl)): TREE_PURPOSE: default argument
-- Stefan Strasser
