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Re: more m68k breakage on m68k-linux
On Tue, Mar 02, 2004 at 08:32:44PM +0100, Roman Zippel wrote:
>
> Richard Zidlicky wrote:
>
> >hm.. the problem I see is that the register allocator is initialised
> >with random garbage. Eg FIXED_REGISTERS is 24 elts big, thus
> >initial_fixed_regs[] is also only 24 elts and in init_reg_sets() we
> >copy a random 25th elt into fixed_regs[] and risk segfault.
> >I am pretty sure more it results in more damage later on.
>
> I can confirm that it causes problems, after fixing FIXED_REGISTERS and
> CALL_USED_REGISTERS I can finally bootstrap gcc again, but my tree has
> another fix for a subtle miscompilation, which I still have to test
> separately. reg_class and all related macros still have to be fixed though.
Can you please post the patch that corrects the FIXED_REGISTERS problem?
Gunther