--- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-28 18:34
---
PRE has now been disabled at -Os, someone wants to try again?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17549
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-18 13:35
---
Turning off GVN-PRE at least on PPC gets back to what it was for 3.3:
5704 temp.s
5796 temp1.s
11500 total
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17549
--- Additional Comments From giovannibajo at libero dot it 2004-10-18 13:55
---
Yes, also on x86, we save approx 2k:
212134.0.0 -Os
191584.0.0 -Os -fno-tree-pre
184664.0.0 -Os -fno-tree-pre -fno-ivopts
201724.0.0 -Os -fno-ivopts
179713.4.1 -Os
Daniel?
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--- Additional Comments From dberlin at dberlin dot org 2004-10-18 14:06 ---
Subject: Re: [4.0 Regression] 15% increase in codesize with C code
On Oct 18, 2004, at 9:55 AM, giovannibajo at libero dot it wrote:
--- Additional Comments From giovannibajo at libero dot it
--- Additional Comments From giovannibajo at libero dot it 2004-10-18 03:57
---
With today's mainline:
3.4.1 -Os:
textdata bss dec hex filename
17971 0 0 179714633 susan.o
4.0.0 -Os:
textdata bss dec hex filename
21213
