[Bug rtl-optimization/59647] [4.8 Regression] ICE in simplify_const_unary_operation, at simplify-rtx.c:1597

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59647

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Dec 31 23:52:11 2013
New Revision: 206268

URL: http://gcc.gnu.org/viewcvs?rev=206268&root=gcc&view=rev
Log:
    PR rtl-optimization/59647
    * cse.c (cse_process_notes_1): Don't substitute negative VOIDmode
    new_rtx into UNSIGNED_FLOAT rtxes.

    * g++.dg/opt/pr59647.C: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/g++.dg/opt/pr59647.C
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/cse.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog