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[Bug tree-optimization/13876] loop not fully optimized
- 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: 27 Feb 2006 14:14:12 -0000
- Subject: [Bug tree-optimization/13876] loop not fully optimized
- References: <bug-13876-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from pinskia at gcc dot gnu dot org 2006-02-27 14:14 -------
(In reply to comment #5)
> Could it be that this is now fixed?
Nope, the second testcase in comment #2 is still very obvious missing an
optimization with respect with jump threading:
cmpw cr7,r31,r30
li r3,0
cmpwi cr6,r3,0
bne+ cr7,L6
L6:
beq- cr6,L4
That is only time I have seen an missed optimization that is so obvious.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13876