[Bug tree-optimization/53693] [4.7/4.8 regression] ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1438

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53693

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-18 14:05:33 UTC ---
Author: rguenth
Date: Mon Jun 18 14:05:27 2012
New Revision: 188733

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188733
Log:
2012-06-18  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/53693
    * tree-vect-patterns.c (vect_operation_fits_smaller_type):
    Reject operands with more than one use.

    * g++.dg/torture/pr53693.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr53693.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-patterns.c