http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50146
Vladimir Makarov <vmakarov at redhat dot com> changed:
What |Removed |Added
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CC| |vmakarov at redhat dot com
--- Comment #1 from Vladimir Makarov <vmakarov at redhat dot com> 2011-08-22
03:32:18 UTC ---
(In reply to comment #0)
> gcc-4.7-20110820 fails to bootstrap on arm-linux-gnueabi with:
>
> The issue is that saved_nregs is declared unconditionally but used #ifndef
> HONOR_REG_ALLOC_ORDER. The ARM backend does define HONOR_REG_ALLOC_ORDER, so
> the warning is expected.
>
> I'm testing the following fix:
>
> --- gcc-4.7-20110820/gcc/ira-color.c.~1~ 2011-08-18 16:56:36.000000000
> +0200
> +++ gcc-4.7-20110820/gcc/ira-color.c 2011-08-21 19:11:00.000000000 +0200
> @@ -1567,13 +1567,14 @@ static bool
> assign_hard_reg (ira_allocno_t a, bool retry_p)
> {
> HARD_REG_SET conflicting_regs[2], profitable_hard_regs[2];
> - int i, j, hard_regno, best_hard_regno, class_size, saved_nregs;
> + int i, j, hard_regno, best_hard_regno, class_size;
> int cost, mem_cost, min_cost, full_cost, min_full_cost, nwords, word;
> int *a_costs;
> enum reg_class aclass;
> enum machine_mode mode;
> static int costs[FIRST_PSEUDO_REGISTER], full_costs[FIRST_PSEUDO_REGISTER];
> #ifndef HONOR_REG_ALLOC_ORDER
> + int saved_nregs;
> enum reg_class rclass;
> int add_cost;
> #endif
Sorry, my bad. It is from my patch for PR50107.
The patch is ok so you can commit it to the trunk.
Thank you.
