[Bug middle-end/49938] [4.7 regression] ICE in interpret_loop_phi, at tree-scalar-evolution.c:1645

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49938

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-03 
11:09:39 UTC ---
Author: rguenth
Date: Wed Aug  3 11:09:35 2011
New Revision: 177267

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177267
Log:
2011-08-03  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/49938
    * tree-scalar-evolution.c (interpret_loop_phi): Gracefully
    deal with a POLYNOMIAL_CHREC.

    * g++.dg/torture/pr49938.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr49938.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-scalar-evolution.c