[Bug libgcc/122275] [16 regression] `DFP_SET_ROUNDMODE` etc. pass wrong operand size on i686-w64-mingw32 since r16-4276-g3dcf3410a74386

[lh_mouse at 126 dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122275

LIU Hao <lh_mouse at 126 dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #62553|0                           |1
        is obsolete|                            |

--- Comment #4 from LIU Hao <lh_mouse at 126 dot com> ---
Created attachment 62559
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62559&action=edit
complete patch

Patch bootstrapped over master on {i686,x86_64}-w64-mingw32.