[Bug target/46091] missed optimization: x86 bt/btc/bts instructions

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46091

--- Comment #4 from uros at gcc dot gnu.org ---
Author: uros
Date: Mon Aug 14 16:42:15 2017
New Revision: 251095

URL: https://gcc.gnu.org/viewcvs?rev=251095&root=gcc&view=rev
Log:
        PR target/46091
        * config/i386/i386.md (*anddi_1_btr): New insn_and_split pattern.
        (*iordi_1_bts): Ditto.
        (*xordi_1_btc): Ditto.

testsuite/ChangeLog:

        PR target/46091
        * gcc.target/i386/pr46091-1.c: New test.
        * gcc.target/i386/pr46091-2.c: Ditto.
        * gcc.target/i386/pr46091-3.c: Ditto.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr46091-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr46091-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr46091-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog