On Jun 2, 2011, at 3:41 AM, Eric Botcazou wrote: > This removes the (undocumented) support for SETJMP_VIA_SAVE_AREA from the > compiler.
> 2011-06-02 Eric Botcazou <ebotca...@adacore.com> > * builtins.c (expand_builtin_setjmp_setup): Do not set calls_setjmp. > --- builtins.c (revision 174559) > +++ builtins.c (working copy) > @@ -806,10 +806,6 @@ expand_builtin_setjmp_setup (rtx buf_add > emit_insn (gen_builtin_setjmp_setup (buf_addr)); > #endif > > - /* Tell optimize_save_area_alloca that extra work is going to > - need to go on during alloca. */ > - cfun->calls_setjmp = 1; > - > /* We have a nonlocal label. */ > cfun->has_nonlocal_label = 1; > } You do know that at least rtl hoisting is dependent upon calls_setjmp being set, right? :-( This part breaks my port. I think you read the comment and thought it was exhaustive, I don't believe it is. Any objection to putting it back, or, would you like me to drill down on rtl hoisting?