--- Comment #11 from hjl at gcc dot gnu dot org 2010-03-13 16:59 ---
Subject: Bug 43209
Author: hjl
Date: Sat Mar 13 16:58:19 2010
New Revision: 157426
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=157426
Log:
Backport testcases from mainline.
2010-03-13 H.J. Lu
--- Comment #9 from spop at gcc dot gnu dot org 2010-03-04 12:13 ---
Subject: Bug 43209
Author: spop
Date: Thu Mar 4 12:12:50 2010
New Revision: 157217
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=157217
Log:
Fix PR43209: Do not decrease the cost of an IV candidate when the
--- Comment #10 from spop at gcc dot gnu dot org 2010-03-04 12:14 ---
Fixed.
--
spop at gcc dot gnu dot org changed:
What|Removed |Added
Status|NEW
--- Comment #8 from pinskia at gcc dot gnu dot org 2010-03-02 20:58 ---
*** Bug 43238 has been marked as a duplicate of this bug. ***
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--
rguenth at gcc dot gnu dot org changed:
What|Removed |Added
Keywords||ice-on-valid-code
Priority|P3 |P1
--- Comment #5 from changpeng dot fang at amd dot com 2010-03-01 18:02
---
I have a fix for this problem. We should not decrease the cost if the cost is
infinite.
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c
index 74dadf7..9accda9 100644
---
--- Comment #6 from sebpop at gmail dot com 2010-03-01 18:10 ---
Subject: Re: [4.5 Regression] ICE in
try_improve_iv_set, at tree-ssa-loop-ivopts.c:5238
On Mon, Mar 1, 2010 at 12:02, changpeng dot fang at amd dot com
I have a fix for this problem. We should not decrease the
--- Comment #7 from sebpop at gmail dot com 2010-03-01 18:21 ---
Subject: Re: [4.5 Regression] ICE in
try_improve_iv_set, at tree-ssa-loop-ivopts.c:5238
You should fuse this condition into the previous condition expression
to avoid the inner if.
Like this:
diff --git
--- Comment #2 from zsojka at seznam dot cz 2010-02-28 13:49 ---
4.4 r157120 works fine too
testcase doesn't fail at -O2, -O3 (in trunk)
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zsojka at seznam dot cz changed:
What|Removed |Added
--- Comment #3 from hjl dot tools at gmail dot com 2010-02-28 17:02 ---
It is caused by revision 156701:
http://gcc.gnu.org/ml/gcc-cvs/2010-02/msg00283.html
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hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #4 from amonakov at gcc dot gnu dot org 2010-02-28 22:01
---
Confirmed.
The first invocation of get_computation_aff fails with ustep == (long) j, cstep
== (unsigned long) j: constant_multiple_of (ustep, cstep, rat) returns false
(j is int, STRIP_NOPS ({u,c}step) preserves
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43209
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