[Bug target/82498] Missed optimization for x86 rotate instruction

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82498

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Oct 12 19:10:34 2017
New Revision: 253695

URL: https://gcc.gnu.org/viewcvs?rev=253695&root=gcc&view=rev
Log:
        PR target/82498
        * config/i386/i386.md (*ashl<mode>3_mask_1,
        *<shift_insn><mode>3_mask_1, *<rotate_insn><mode>3_mask_1,
        *<btsc><mode>_mask_1, *btr<mode>_mask_1): New define_insn_and_split
        patterns.

        * gcc.target/i386/pr82498-1.c: New test.
        * gcc.target/i386/pr82498-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr82498-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr82498-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog