[PATCH] PR 85075, Fix PowerPC __float182/__ibm128 types and mangling

[Michael Meissner]

On Tue, Apr 17, 2018 at 09:57:52AM -0500, Segher Boessenkool wrote:
> On Mon, Apr 16, 2018 at 03:22:16PM -0400, Michael Meissner wrote:
> > Here is the PR 85075 patch without the rs6000.md bits:
> 
> This fails on powerpc64-linux bootstrap (w/ --with-cpu=power7 if that
> matters):
> 
> /home/segher/src/gcc/libgcc/config/rs6000/ibm-ldouble.c: In function '__gcc_qadd
> ':
> /home/segher/src/gcc/libgcc/config/rs6000/ibm-ldouble.c:157:1: error: insn does 
> not satisfy its constraints:
>  }
>  ^
> (insn 144 197 198 15 (set (reg:TF 32 0 [orig:143 _47 ] [143])
>         (unspec:TF [
>                 (reg:DF 33 1 [orig:143 _47+8 ] [143])
>                 (reg/v:DF 36 4 [orig:139 xl ] [139])
>             ] UNSPEC_PACK_128BIT)) "/home/segher/src/gcc/libgcc/config/rs6000/ib
> m-ldouble.c":106 1003 {packtf}
>      (nil))
> during RTL pass: reload

Yes, you need the patch for 85358 applied (which you've approved, but I haven't
checked in yet).  That in fact is why I needed to patch rs6000.md in the
original patch.

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797