One of my testsuite failures for the pdp11 back end is gcc.c-torture/compile/930326-1.c which is:
struct { char a, b, f[3]; } s; long i = s.f-&s.b; It fails with "error: initializer element is not computable at load time". I don't understand why because it seems to be a perfectly reasonable compile time constant; "load time" doesn't enter into the picture that I can see. If I replace "long" by "short" it works correctly. So presumably it has something to do with the fact that Pmode == HImode. But how that translates into this failure I don't know. paul