[Bug target/86820] [8 regression] gcc-8 miscompiles binutils on m68k

[schwab at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86820

--- Comment #5 from Andreas Schwab <schwab at gcc dot gnu.org> ---
Author: schwab
Date: Thu Aug  2 17:23:13 2018
New Revision: 263269

URL: https://gcc.gnu.org/viewcvs?rev=263269&root=gcc&view=rev
Log:
Fix invalid cc_status after [const_][us]mulsi3_highpart

        Backport from mainline
        PR target/86820
        * config/m68k/m68k.md (umulsi3_highpart+1, const_umulsi3_highpart)
        (smulsi3_highpart+1, const_smulsi3_highpart): Add CC_STATUS_INIT.

testsuite/:
        PR target/86820
        * gcc.target/m68k/mulsi_highpart.c: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.target/m68k/mulsi_highpart.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/config/m68k/m68k.md
    branches/gcc-8-branch/gcc/testsuite/ChangeLog