bug#6031: gcc 4.5 breaks optimized builds of emacs

[Elias Pipping]

On Sun, Apr 25, 2010 at 3:33 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Elias Pipping <pipping.elias@googlemail.com>
>> Date: Sun, 25 Apr 2010 01:44:14 +0200
>> Cc:
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x0000000000406015 in fill_up_glyph_row_area_with_spaces
>> (row=0x111e320, area=2) at dispnew.c:2910
>> 2910            *text++ = space_glyph;
>
> Please show the values of the following variables in frame 0:
>
>  (gdb) p text
>  (gdb) p end
>  (gdb) p row->used[area]
>
> Thanks.

(gdb) p text
$1 = (struct glyph *) 0x1163000
(gdb) p end
$2 = (struct glyph *) 0x7ffff73525fa
(gdb) p *end
$3 = {charpos = -19543819183790871, object = 4904358129765974015,
pixel_width = -30270, ascent = -29241,
  descent = 327, voffset = -28477, type = 0, multibyte_p = 0,
left_box_line_p = 0, right_box_line_p = 1,
  overlaps_vertically_p = 0, padding_p = 0, glyph_not_available_p = 1,
avoid_cursor_p = 0, resolved_level = 8,
  bidi_type = 2, face_id = 37008, font_type = 1, slice = {x = 37008, y
= 37008, width = 37008, height = 65464}, u = {
    ch = 1224736767, cmp = {automatic = 1, id = 8388607, from = 8, to
= 4}, img_id = 1224736767, stretch = {
      height = 65535, ascent = 18687}, val = 1224736767}}
(gdb) p row->used[area]
$4 = 0
(gdb)