[Bug testsuite/94036] [9 regression] gcc.target/powerpc/pr72804.c fails

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94036

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |marxin at gcc dot gnu.org

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
commit r9-8357-g85c08558c66dd8e2000a4ad282ca03368028fce3
Author: Xionghu Luo <luoxhu@linux.ibm.com>
Date:   Mon Mar 9 20:25:20 2020 -0500

    Backport to gcc-9: PR92398: Fix testcase failure of pr72804.c

    Backport the patch to fix failures on P9 and P8BE, P7LE for PR94036.
    Tested pass on P9/P8/P7.
    (gcc-8 is not needed as the test doesn't exists.)

    P9LE generated instruction is not worse than P8LE.
    mtvsrdd;xxlnot;stxv vs. not;not;std;std.
    It can have longer latency, but latency via memory is not so critical,
    and this does save decode and other resources.  It's hard to choose
    which is best.  Update the test case to fix failures.

    gcc/testsuite/ChangeLog:

            2020-03-10  Luo Xiong Hu  <luoxhu@linux.ibm.com>

            backport from master.
            PR testsuite/94036

            2019-12-02  Luo Xiong Hu  <luoxhu@linux.ibm.com>

            PR testsuite/92398
            * gcc.target/powerpc/pr72804.c: Split the store function to...
            * gcc.target/powerpc/pr92398.h: ... this one.  New.
            * gcc.target/powerpc/pr92398.p9+.c: New.
            * gcc.target/powerpc/pr92398.p9-.c: New.
            * lib/target-supports.exp (check_effective_target_p8): New.
            (check_effective_target_p9+): New.