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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/34027] [4.3 regression] -Os code size nearly doubled Date: Mon, 12 Nov 2007 13:28:00 -0000 [thread overview] Message-ID: <20071112132827.29111.qmail@sourceware.org> (raw) In-Reply-To: <bug-34027-9876@http.gcc.gnu.org/bugzilla/> ------- Comment #9 from rguenth at gcc dot gnu dot org 2007-11-12 13:28 ------- We now generate with -Os -m32 foobar: pushl %ebp movl %esp, %ebp subl $8, %esp pushl $0 pushl $1000000000 pushl 12(%ebp) pushl 8(%ebp) call __umoddi3 addl $16, %esp leave ret and with -O2 -m32: foobar: pushl %ebp movl %esp, %ebp subl $24, %esp movl 12(%ebp), %edx movl 8(%ebp), %eax cmpl $0, %edx ja .L5 cmpl $999999999, %eax ja .L5 leave ret which for -Os is smaller than what we generated with 4.2 (and for -O2 it is slightly larger). So, fixed. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34027
next prev parent reply other threads:[~2007-11-12 13:28 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2007-11-08 11:39 [Bug c/34027] New: " bunk at stusta dot de 2007-11-08 21:45 ` [Bug tree-optimization/34027] " rguenth at gcc dot gnu dot org 2007-11-09 12:15 ` jakub at gcc dot gnu dot org 2007-11-09 12:20 ` rguenther at suse dot de 2007-11-09 12:30 ` jakub at gcc dot gnu dot org 2007-11-09 12:37 ` rguenther at suse dot de 2007-11-10 7:58 ` bunk at stusta dot de 2007-11-10 23:54 ` rguenth at gcc dot gnu dot org 2007-11-12 13:24 ` rguenth at gcc dot gnu dot org 2007-11-12 13:28 ` rguenth at gcc dot gnu dot org [this message] 2007-11-12 15:01 ` rguenth at gcc dot gnu dot org
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