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[Bug optimization/6990] -O do better optimization than -O3/-O2/-Os on jump-to-jump for PowerPC
- From: "pinskia at physics dot uc dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Jun 2003 01:09:45 -0000
- Subject: [Bug optimization/6990] -O do better optimization than -O3/-O2/-Os on jump-to-jump for PowerPC
- References: <20020611050601.6990.fshvaige@cisco.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=6990
pinskia@physics.uc.edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
------- Additional Comments From pinskia@physics.uc.edu 2003-06-02 01:09 -------
This is fixed on the mainline (20030529):
mr. r0,r5
mtctr r0
beqlr- cr0
cmplw cr0,r3,r4
ble- cr0,L3
add r4,r4,r0
add r2,r3,r0
L4:
lbzu r5,-1(r4)
stbu r5,-1(r2)
bdnz L4
blr
L3:
addi r4,r4,-1
addi r2,r3,-1
L7:
lbzu r6,1(r4)
stbu r6,1(r2)
bdnz L7
blr
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