[Bug target/90362] or1k: Soft divide does not work correctly

[shorne at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90362

--- Comment #3 from Stafford Horne <shorne at gcc dot gnu.org> ---
Author: shorne
Date: Sun Jul 21 20:59:50 2019
New Revision: 273648

URL: https://gcc.gnu.org/viewcvs?rev=273648&root=gcc&view=rev
Log:
or1k: Fix issues with msoft-div

Fixes bad assembly logic with software divide as reported by Richard Selvaggi.
Also, add a basic test to verify the soft math works when enabled.

gcc/testsuite/ChangeLog:

        PR target/90362
        * gcc.target/or1k/div-mul-3.c: New test.

libgcc/ChangeLog:

        PR target/90362
        * config/or1k/lib1funcs.S (__udivsi3): Change l.sfeqi
        to l.sfeq and l.sfltsi to l.sflts equivalents as the immediate
        instructions are not available on every processor.  Change a
        l.bnf to l.bf to fix logic issue.


Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/libgcc/ChangeLog
    trunk/libgcc/config/or1k/lib1funcs.S