[Bug target/70903] [4.9/5/6/7 Regression] wrong code with bfi @ aarch64 with -Os

[edlinger at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70903

--- Comment #6 from Bernd Edlinger <edlinger at gcc dot gnu.org> ---
Author: edlinger
Date: Thu Aug  4 13:20:57 2016
New Revision: 239122

URL: https://gcc.gnu.org/viewcvs?rev=239122&root=gcc&view=rev
Log:
2016-08-04  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        PR rtl-optimization/70903
        * cse.c (cse_insn): If DEST is a paradoxical SUBREG, don't record DEST.

testsuite:
2016-08-04  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        PR rtl-optimization/70903
        * gcc.c-torture/execute/pr70903.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr70903.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cse.c
    trunk/gcc/testsuite/ChangeLog