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[Bug rtl-optimization/39871] [4.3/4.4/4.5 regression] Code size increase on ARM due to inferior CSE
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 May 2009 15:06:40 -0000
- Subject: [Bug rtl-optimization/39871] [4.3/4.4/4.5 regression] Code size increase on ARM due to inferior CSE
- References: <bug-39871-17592@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from bonzini at gnu dot org 2009-05-06 15:06 -------
With 4.5 I see
With 4.5.0 I see:
push {lr}
sub sp, sp, #12
ldr r2, [r0]
ldr r1, [r0, #4]
mov r0, sp
str r2, [sp, #4]
bl func
add sp, sp, #12
pop {pc}
Can you bisect which revision fixed this?
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bonzini at gnu dot org
Known to work| |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39871