[Bug rtl-optimization/66412] [5/6 Regression] ICE on valid code at -O2 and -O3 with -g enabled in simplify_subreg, at simplify-rtx.c:5748

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66412

--- Comment #9 from uros at gcc dot gnu.org ---
Author: uros
Date: Fri Jun 26 07:45:07 2015
New Revision: 224994

URL: https://gcc.gnu.org/viewcvs?rev=224994&root=gcc&view=rev
Log:
        PR target/66412
        * config/i386/i386.md (various splitters): Use shallow_copy_rtx
        before doing PUT_MODE or PUT_CODE on operands to avoid
        in-place RTX modification.

testsuite/ChangeLog:

        PR target/66412
        * gcc.target/i386/pr66412.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr66412.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog