[Bug target/82981] [7 Regression] unnecessary __multi3 call for mips64r6 linux kernel

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82981

--- Comment #18 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Mon Oct 28 19:17:58 2019
New Revision: 277537

URL: https://gcc.gnu.org/viewcvs?rev=277537&root=gcc&view=rev
Log:
        PR target/82981
        * config/mips/mips.md (<u>mulditi3): Generate patterns for high
        doubleword and low doubleword result of multiplication on
        MIPS64R6.

        * gcc.target/mips/mips64r6-ti-mult.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/mips/mips64r6-ti-mult.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/mips/mips.md
    trunk/gcc/testsuite/ChangeLog