[Bug target/85095] [6/7 Regression] worse code generated

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85095

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jun 22 21:02:07 2018
New Revision: 261942

URL: https://gcc.gnu.org/viewcvs?rev=261942&root=gcc&view=rev
Log:
        Backported from mainline
        2018-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/85095
        * config/i386/i386.md (*add<mode>3_carry_0, *addsi3_carry_zext_0,
        *sub<mode>3_carry_0, *subsi3_carry_zext_0): New patterns.

        * gcc.target/i386/pr85095-1.c: New test.
        * gcc.target/i386/pr85095-2.c: New test.
        * gcc.c-torture/execute/pr85095.c: New test.

Added:
    branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/execute/pr85095.c
    branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr85095-1.c
    branches/gcc-7-branch/gcc/testsuite/gcc.target/i386/pr85095-2.c
Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/i386/i386.md
    branches/gcc-7-branch/gcc/testsuite/ChangeLog