[Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 19 09:23:52 2013
New Revision: 205012

URL: http://gcc.gnu.org/viewcvs?rev=205012&root=gcc&view=rev
Log:
2013-11-19  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/57517
    * tree-predcom.c (combinable_refs_p): Verify the combination
    is always executed when the refs are.

    * gfortran.fortran-torture/compile/pr57517.f90: New testcase.
    * gcc.dg/torture/pr57517.c: Likewise.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr57517.c
   
branches/gcc-4_8-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr57517.f90
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-predcom.c