Re: PATCH: Enable TFmode for x86

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Wed, Jul 2, 2008 at 8:50 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Wed, Jul 2, 2008 at 7:45 AM, Ian Lance Taylor <iant@google.com> wrote:
>> "H.J. Lu" <hjl.tools@gmail.com> writes:
>>
>>> gcc/
>>>
>>> 2008-07-01  H.J. Lu  <hongjiu.lu@intel.com>
>>>
>>>       PR target/36669
>>>       * config/i386/libgcc-glibc.ver: New.
>>>
>>>       * config/i386/libgcc-x86_64-glibc.ver: Removed.
>>>
>>> 2008-07-01  H.J. Lu  <hongjiu.lu@intel.com>
>>>
>>>       * config.gcc: Remove i386/t-fprules-softfp64 soft-fp/t-softfp
>>>       from tmake_file from i[34567]86-*-darwin*, x86_64-*-darwin*,
>>>       i[34567]86-*-linux*, x86_64-*-linux*.  Add
>>>       i386/t-fprules-softfp and soft-fp/t-softfp to tmake_file for
>>>       i[34567]86-*-darwin*, x86_64-*-darwin*, i[34567]86-*-linux*,
>>>       x86_64-*-linux*.  Add i386/t-linux to tmake_file for
>>>       i[34567]86-*-linux*, x86_64-*-linux*.
>>>
>>>       * libgcc-std.ver: Add empty GCC_4.4.0.
>>>
>>>       * mkmap-symver.awk: Support multiple versions per symbol.
>>>
>>>       * config/libgcc-glibc.ver: Add %exclude.
>>>
>>>       * config/i386/i386.c (ix86_init_builtins): Always define
>>>       __builtin_fabsq and __builtin_copysignq with fallbacks.
>>>       (ix86_expand_builtin): Emit normal call for __builtin_fabsq
>>>       and __builtin_copysignq if SSE2 isn't available.
>>>
>>>       * config/i386/linux.h (LIBGCC2_HAS_TF_MODE): Defined.
>>>       (LIBGCC2_TF_CEXT): Likwise.
>>>       (TF_SIZE): Likwise.
>>>
>>>       * config/i386/linux64.h (LIBGCC2_HAS_TF_MODE): Defined as 1.
>>>
>>>       * config/i386/sfp-machine.h: Moved to libgcc.
>>>
>>>       * config/i386/sfp-machine.h: New.
>>>       * config/i386/t-linux: Likwise.
>>>
>>>       * config/i386/t-darwin: Remove softfp_wrap_start and
>>>       softfp_wrap_end.
>>>       * config/i386/t-darwin64: Likewise.
>>>
>>>       * config/i386/t-fprules-softfp64: Renamed to ...
>>>       * config/i386/t-fprules-softfp: This.
>>>
>>>       * config/i386/t-linux64: Remove SHLIB_MAPFILES, softfp_wrap_start
>>>       and softfp_wrap_end.
>>>
>>> libgcc/
>>>
>>> 2008-07-01  H.J. Lu  <hongjiu.lu@intel.com>
>>>
>>>       PR target/36669
>>>       * shared-object.mk ($(base)_s$(objext)): Add -DSHARED.
>>>
>>>       * config/i386/64/_divtc3-compat.c: New.
>>>       * config/i386/64/_multc3-compat.c: Likewise.
>>>       * config/i386/64/_powitf2-compat.c: Likewise.
>>>       * config/i386/64/eqtf2.c: Likewise.
>>>       * config/i386/64/getf2.c: Likewise.
>>>       * config/i386/64/letf2.c: Likewise.
>>>       * config/i386/64/t-fprules-softfp: Likewise.
>>>
>>> 2008-07-01  H.J. Lu  <hongjiu.lu@intel.com>
>>>
>>>       * config.host: Add i386/${host_address}/t-fprules-softfp to
>>>       tmake_file for i[34567]86-*-darwin*, x86_64-*-darwin*,
>>>       i[34567]86-*-linux*, x86_64-*-linux*.
>>>
>>>       * configure.ac: Set host_address to 64 or 32 for x86.
>>>       * configure: Regenerated.
>>>
>>>       * Makefile.in (config.status): Also depend on
>>>       $(srcdir)/config.host.
>>>
>>>       * config/i386/32/t-fprules-softfp: New.
>>>       * config/i386/32/tf-signs.c: Likewise.
>>>
>>>       * config/i386/64/sfp-machine.h: New. Moved from gcc.
>>>
>>> 2008-07-01  H.J. Lu  <hongjiu.lu@intel.com>
>>>           Uros Bizjak  <ubizjak@gmail.com>
>>>
>>>       * config/i386/32/sfp-machine.h: New.
>>
>>
>>> +%ifdef __x86_64__
>>> +GCC_3.0 {
>>> +  __gttf2
>>> +  __lttf2
>>> +  __netf2
>>> +}
>>> +
>>> +GCC_4.0.0 {
>>> +  __divtc3
>>> +  __multc3
>>> +  __powitf2
>>> +}
>>
>> Please add some comments explaining why we are doing this.
>>
>>
>> This is OK with that change.
>>
>
> This is the patch I am checking in.
>
> Thanks.
>

Hi Uros,

__float128 is now supported on Linux/x86. Is this __float128 testsuite patch:

http://gcc.gnu.org/ml/gcc-patches/2008-06/msg01924.html

OK for trunk? Tested on Linux/ia32, Linux/ia64 and Linux/x86-64.

Thanks.


-- 
H.J.