[Bug rtl-optimization/60947] [4.9/4.10 Regression] Unable to handle kernel paging request (linux kernel 2.6.28.9) with gcc 4.9 release
yufan8.chen at gmail dot com
gcc-bugzilla@gcc.gnu.org
Mon Apr 28 09:35:00 GMT 2014
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60947
--- Comment #10 from YuFan <yufan8.chen at gmail dot com> ---
After more tests, I figure out the issue is caused by the commit:
SVN revision:
r206552 | amker | 2014-01-11 17:33:39 +0800 (六, 11 1月 2014) | 7 lines
* tree-ssa-loop-ivopts.c (iv_ca_narrow): New parameter.
Start narrowing with START. Apply candidate-use pair
and check overall cost in narrowing.
(iv_ca_prune): Pass new argument.
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