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[Bug middle-end/20671] Poor bit-field code generation
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Mar 2005 22:52:32 -0000
- Subject: [Bug middle-end/20671] Poor bit-field code generation
- References: <20050328192517.20671.dave@synergy.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-28 22:52 -------
Don't worry about it, I can reproduce it on PPC:
lwz r0,0(r12)
rlwinm r3,r0,0,1,31
mr r4,r3
stw r3,0(r12)
rlwimi r4,r0,0,1,1
mr r5,r4
stw r4,0(r12)
Trying to find an equivalent C testcase. Though it is hard.
--
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |19466
nThis| |
Status|UNCONFIRMED |NEW
Component|ada |middle-end
Ever Confirmed| |1
Keywords| |missed-optimization
Last reconfirmed|0000-00-00 00:00:00 |2005-03-28 22:52:30
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20671