[Bug libgcc/83112] Silence warnings from PowerPC libgcc float128-ifunc.c compilation

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83112

--- Comment #3 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Fri Dec  1 14:26:31 2017
New Revision: 255309

URL: https://gcc.gnu.org/viewcvs?rev=255309&root=gcc&view=rev
Log:
2017-12-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Back port from trunk
        2017-11-30  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR libgcc/83112
        * config/rs6000/float128-ifunc.c (__addkf3_resolve): Use the
        correct type for all ifunc resolvers to silence -Wattribute-alias
        warnings.  Eliminate the forward declaration of the resolver
        functions which is no longer needed.
        (__subkf3_resolve): Likewise.
        (__mulkf3_resolve): Likewise.
        (__divkf3_resolve): Likewise.
        (__negkf2_resolve): Likewise.
        (__eqkf2_resolve): Likewise.
        (__nekf2_resolve): Likewise.
        (__gekf2_resolve): Likewise.
        (__gtkf2_resolve): Likewise.
        (__lekf2_resolve): Likewise.
        (__ltkf2_resolve): Likewise.
        (__unordkf2_resolve): Likewise.
        (__extendsfkf2_resolve): Likewise.
        (__extenddfkf2_resolve): Likewise.
        (__trunckfsf2_resolve): Likewise.
        (__trunckfdf2_resolve): Likewise.
        (__fixkfsi_resolve): Likewise.
        (__fixkfdi_resolve): Likewise.
        (__fixunskfsi_resolve): Likewise.
        (__fixunskfdi_resolve): Likewise.
        (__floatsikf_resolve): Likewise.
        (__floatdikf_resolve): Likewise.
        (__floatunsikf_resolve): Likewise.
        (__floatundikf_resolve): Likewise.
        (__extendkftf2_resolve): Likewise.
        (__trunctfkf2_resolve): Likewise.

        PR libgcc/83103
        * config/rs6000/quad-float128.h (TF): Don't define if long double
        is IEEE 128-bit floating point.
        (TCtype): Define as either TCmode or KCmode, depending on whether
        long double is IEEE 128-bit floating point.
        (__mulkc3_sw): Add declarations for software/hardware versions of
        complex multiply/divide.
        (__divkc3_sw): Likewise.
        (__mulkc3_hw): Likewise.
        (__divkc3_hw): Likewise.
        * config/rs6000/_mulkc3.c (_mulkc3): If we are building ifunc
        handlers to switch between using software emulation and hardware
        float128 instructions, build the complex multiply/divide functions
        for both software and hardware support.
        * config/rs6000/_divkc3.c (_divkc3): Likewise.
        * config/rs6000/float128-ifunc.c (__mulkc3_resolve): Likewise.
        (__divkc3_resolve): Likewise.
        (__mulkc3): Likewise.
        (__divkc3): Likewise.
        * config/rs6000/t-float128-hw (fp128_hardfp_src): Likewise.
        (fp128_hw_src): Likewise.
        (fp128_hw_static_obj): Likewise.
        (fp128_hw_shared_obj): Likewise.
        (_mulkc3-hw.c): Likewise.
        (_divkc3-hw.c): Likewise.
        * config/rs6000/t-float128 (clean-float128): Delete _mulkc3-hw.c
        and _divkc3-hw.c.


Modified:
    branches/ibm/gcc-7-branch/libgcc/ChangeLog.ibm
    branches/ibm/gcc-7-branch/libgcc/config/rs6000/_divkc3.c
    branches/ibm/gcc-7-branch/libgcc/config/rs6000/_mulkc3.c
    branches/ibm/gcc-7-branch/libgcc/config/rs6000/float128-ifunc.c
    branches/ibm/gcc-7-branch/libgcc/config/rs6000/quad-float128.h
    branches/ibm/gcc-7-branch/libgcc/config/rs6000/t-float128
    branches/ibm/gcc-7-branch/libgcc/config/rs6000/t-float128-hw