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Subject: [Bug target/101235] [11/12 Regression] Fails to bootstrap with
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Date: Tue, 29 Jun 2021 05:24:29 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101235

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Kewen Lin <linkw@gcc.gnu.org=
>:

https://gcc.gnu.org/g:f6306457ee386a9cae9b08e35ce160af0566b9f9

commit r11-8661-gf6306457ee386a9cae9b08e35ce160af0566b9f9
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Tue Jun 22 23:09:30 2021 -0500

    rs6000: Fix typos in float128 ISA3.1 support

    The recent float128 ISA3.1 support (r12-1340) has some typos,
    it makes the libgcc build fail if it's with one binutils
    (assembler) which doesn't support Power10 insns.  The error
    looks like:

    Error: invalid switch -mpower10
    Error: unrecognized option -mpower10
    ... [...libgcc/shared-object.mk:14: float128-p10.o] Error 1

    What this patch does are:
      - fix test target typo libgcc_cv_powerpc_3_1_float128_hw
        (written wrongly as libgcc_cv_powerpc_float128_hw, so it's
         going to build ISA3.1 stuffs just when detecting ISA3.0).
      - fix test used for libgcc_cv_powerpc_3_1_float128_hw check.
      - fix test option used for libgcc_cv_powerpc_3_1_float128_hw
        check.
      - remove the ISA3.1 related contents from t-float128-hw.
      - add new macro FLOAT128_HW_INSNS_ISA3_1 to differentiate
        ISA3.1 content from ISA3.0 part in ifunc support.

    Bootstrapped/regtested on:
      - powerpc64le-linux-gnu P10
      - powerpc64le-linux-gnu P9 (w/i and w/o p10 supported as)
      - powerpc64-linux-gnu P8 (w/i and w/o p10 supported as)

    libgcc/ChangeLog:

            PR target/101235
            * configure: Regenerate.
            * configure.ac (test for libgcc_cv_powerpc_3_1_float128_hw): Fix
            typos among the name, CFLAGS and the test.
            * config/rs6000/t-float128-hw (fp128_3_1_hw_funcs,
fp128_3_1_hw_src,
            fp128_3_1_hw_static_obj, fp128_3_1_hw_shared_obj,
fp128_3_1_hw_obj):
            Remove.
            * config/rs6000/t-float128-p10-hw (FLOAT128_HW_INSNS): Append
            macro FLOAT128_HW_INSNS_ISA3_1.
            (FP128_3_1_CFLAGS_HW): Fix option typo.
            * config/rs6000/float128-ifunc.c (SW_OR_HW_ISA3_1): Guard this =
with
            FLOAT128_HW_INSNS_ISA3_1.
            (__floattikf_resolve): Likewise.
            (__floatuntikf_resolve): Likewise.
            (__fixkfti_resolve): Likewise.
            (__fixunskfti_resolve): Likewise.
            (__floattikf): Likewise.
            (__floatuntikf): Likewise.
            (__fixkfti): Likewise.
            (__fixunskfti): Likewise.

    (cherry picked from commit 47749c43acb460ac8f410ee599616d1860ee5a35)=