[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=204165&root=gcc&view=rev
Log:
    Backport from mainline
    2013-08-08  Richard Sandiford  <rdsandiford@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  <rdsandiford@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