[Bug target/91769] [9/10 regression] wrong code with -O2 on MIPS

[draganm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91769

--- Comment #8 from draganm at gcc dot gnu.org ---
Author: draganm
Date: Fri Oct  4 11:10:01 2019
New Revision: 276570

URL: https://gcc.gnu.org/viewcvs?rev=276570&root=gcc&view=rev
Log:
Backport fix for PR target/91769

gcc/ChangeLog:

2019-10-04  Dragan Mladjenovic <dmladjeno...@wavecomp.com>

        Backport from mainline
        2019-10-03  Dragan Mladjenovic  <dmladjeno...@wavecomp.com>

                PR target/91769
                * config/mips/mips.c (mips_split_move): Use
reg_overlap_mentioned_p
                instead of REGNO equality check on addr.reg.

gcc/testsuite/ChangeLog:

2019-10-04  Dragan Mladjenovic <dmladjeno...@wavecomp.com>

        Backport from mainline
        2019-10-03  Dragan Mladjenovic  <dmladjeno...@wavecomp.com>

                PR target/91769
                * gcc.target/mips/pr91769.c: New test.

Added:
    branches/gcc-9-branch/gcc/testsuite/gcc.target/mips/pr91769.c
Modified:
    branches/gcc-9-branch/gcc/ChangeLog
    branches/gcc-9-branch/gcc/config/mips/mips.c
    branches/gcc-9-branch/gcc/testsuite/ChangeLog