[Bug rtl-optimization/63659] [4.8/4.9/5 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63659

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Oct 31 19:42:39 2014
New Revision: 216985

URL: https://gcc.gnu.org/viewcvs?rev=216985&root=gcc&view=rev
Log:
    PR rtl-optimization/63659
    * ree.c (update_reg_equal_equiv_notes): New function.
    (combine_set_extension, transform_ifelse): Use it.

    * gcc.c-torture/execute/pr63659.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr63659.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ree.c
    trunk/gcc/testsuite/ChangeLog