[Bug tree-optimization/54647] [4.8 Regression] Segmentation fault in get_expr_value_id with -O2

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54647



--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-21 
12:44:12 UTC ---

Author: rguenth

Date: Fri Sep 21 12:44:07 2012

New Revision: 191613



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191613

Log:

2012-09-21  Richard Guenther  <rguent...@suse.de>



    PR tree-optimization/54647

    * tree-ssa-pre.c (compute_avail): Do not put COND_EXPR

    or VEC_COND_EXPR into EXP_GEN again.



    * g++.dg/torture/pr54647.C: New testcase.



Added:

    trunk/gcc/testsuite/g++.dg/torture/pr54647.C

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/testsuite/ChangeLog

    trunk/gcc/tree-ssa-pre.c