[Bug rtl-optimization/70160] [6 Regression] gcc ICE at -O2 (seg fault) and above on valid code on x86_64-linux-gnu

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70160

--- Comment #8 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
Author: ienkovich
Date: Fri Mar 11 11:25:29 2016
New Revision: 234135

URL: https://gcc.gnu.org/viewcvs?rev=234135&root=gcc&view=rev
Log:
gcc/

        PR target/70160
        * config/i386/i386.c (scalar_chain::convert_reg): Skip uses
        of uninitialized values.

gcc/testsuite/

        PR target/70160
        * gcc.target/i386/pr70160.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr70160.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog