On 01/09/2014 03:34 PM, Jakub Jelinek wrote:
> 2014-01-09 Jakub Jelinek <ja...@redhat.com>
>
> * target-globals.c (save_target_globals): Allocate < 4KB structs using
> GC in payload of target_globals struct instead of allocating them on
> the heap and the larger structs separately using GC.
> * target-globals.h (struct target_globals): Make regs, hard_regs,
> reload, expmed, ira, ira_int and lra_fields GTY((atomic)) instead
> of GTY((skip)) and change type to void *.
> (reset_target_globals): Cast loads from those fields to corresponding
> types.
>
> --- gcc/target-globals.h.jj 2014-01-09 19:24:20.000000000 +0100
> +++ gcc/target-globals.h 2014-01-09 19:39:43.879348712 +0100
> @@ -41,17 +41,17 @@ extern struct target_lower_subreg *this_
>
> struct GTY(()) target_globals {
> struct target_flag_state *GTY((skip)) flag_state;
> - struct target_regs *GTY((skip)) regs;
> + void *GTY((atomic)) regs;
I'm not entirely fond of this either, for the obvious reason. Clearly a
deficiency in gengtype, but after 2 hours of poking around I can see that
it isn't a quick fix.
I guess I'm ok with the patch, since the use of the target_globals structure
is so restricted.
r~
