[Bug rtl-optimization/58079] [4.8 Regression] internal compiler error: in do_SUBST, at combine.c:711

[uros at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58079

--- Comment #12 from uros at gcc dot gnu.org ---
Author: uros
Date: Tue Oct 29 15:44:15 2013
New Revision: 204165

URL: http://gcc.gnu.org/viewcvs?rev=204165root=gccview=rev
Log:
Backport from mainline
2013-08-08  Richard Sandiford  rdsandif...@googlemail.com

PR rtl-optimization/58079
* combine.c (combine_simplify_rtx): Avoid using SUBST if
simplify_comparison has widened a comparison with an integer.

testsuite/ChangeLog:

Backport from mainline
2013-08-08  Richard Sandiford  rdsandif...@googlemail.com

PR rtl-optimization/58079
* gcc.dg/torture/pr58079.c: New test.


Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr58079.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/combine.c
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog

[Bug rtl-optimization/58079] [4.8 Regression] internal compiler error: in do_SUBST, at combine.c:711

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58079

Uroš Bizjak ubizjak at gmail dot com changed:

   What|Removed |Added

 Status|REOPENED|RESOLVED
 Resolution|--- |FIXED

--- Comment #13 from Uroš Bizjak ubizjak at gmail dot com ---
Fixed also for 4.8 branch.

[Bug rtl-optimization/58079] [4.8 Regression] internal compiler error: in do_SUBST, at combine.c:711

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58079

Uroš Bizjak ubizjak at gmail dot com changed:

   What|Removed |Added

 Target|mips64r5900el-linux-gnu |mips64r5900el-linux-gnu,
   ||hppa-unknown-linux-gnu,
   ||alpha-linux-gnu
   Target Milestone|--- |4.8.3
Summary|internal compiler error: in |[4.8 Regression] internal
   |do_SUBST, at combine.c:711  |compiler error: in
   ||do_SUBST, at combine.c:711

--- Comment #11 from Uroš Bizjak ubizjak at gmail dot com ---
Still regression on 4.8 branch.