[Bug tree-optimization/54920] [4.8 Regression] segfault in tree-ssa-pre.c during Firefox build

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54920



--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-15 
11:22:54 UTC ---

Author: rguenth

Date: Mon Oct 15 11:22:49 2012

New Revision: 192454



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192454

Log:

2012-10-15  Richard Guenther  <rguent...@suse.de>



    PR tree-optimization/54920

    * tree-ssa-pre.c (create_expression_by_pieces): Properly

    allocate temporary storage for all NARY elements.



    * gcc.dg/torture/pr54920.c: New testcase.



Added:

    trunk/gcc/testsuite/gcc.dg/torture/pr54920.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/testsuite/ChangeLog

    trunk/gcc/tree-ssa-pre.c