HI, I'm a newbie and I'm trying to modify the front end to extend C.
I know the following code can be accepted, void f (struct S { int a; } s, int a[][s.a]) { } . I'm wondering whether it is possible to build a structure which has a variably modified array whose size depends on an other field in that structure at parameter scopes, i.e, something like this, void f (struct S { int a; int b[s.a]; } s) { } . This won't be compiled as s is not declared when build the struct S, but by modifying the front end code, I can mimic this directly. However, the assertion, gcc_assert (SA.partition_to_pseudo[i]); in the function gimple_expend_cfg in cfgexpand.c fails, and I've no idea why. I'm using 4.6.3. Thanks, Chenkan