--- Additional Comments From dann at godzilla dot ics dot uci dot edu
2005-09-07 22:05 ---
It seems that expand generates different insns in 4.0 and 4.1 for the comparison
in question:
4.0 generates: (from .00.expand)
(insn 15 13 16 1 (set (reg/f:SI 62)
(mem/s/f:SI (plus:SI
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-23
11:27 ---
You really should know that we only care about code size at -Os. We care about
performance
regressions though at -O2.
--
What|Removed |Added
--- Additional Comments From dann at godzilla dot ics dot uci dot edu
2005-08-23 18:05 ---
(In reply to comment #2)
You really should know that we only care about code size at -Os. We care
about performance
regressions though at -O2.
Code size is important for performance for
On Aug 23, 2005, at 2:06 PM, dann at godzilla dot ics dot uci dot edu
wrote:
--- Additional Comments From dann at godzilla dot ics dot uci dot
edu 2005-08-23 18:05 ---
(In reply to comment #2)
You really should know that we only care about code size at -Os. We
care
about
--- Additional Comments From pinskia at physics dot uc dot edu 2005-08-23
18:07 ---
Subject: Re: bigger version of mov + cmp produced
On Aug 23, 2005, at 2:06 PM, dann at godzilla dot ics dot uci dot edu
wrote:
--- Additional Comments From dann at godzilla dot ics dot uci dot
--- Additional Comments From dann at godzilla dot ics dot uci dot edu
2005-08-23 18:15 ---
(In reply to comment #4)
Then use -Os every where instead. You will see that the overall code
size for 4.1
has reduced from 4.0.
That might be true, but -Os is not always an option. If
--- Additional Comments From dann at godzilla dot ics dot uci dot edu
2005-08-23 05:55 ---
Created an attachment (id=9560)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9560action=view)
Testcase for this bug
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23524
