https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78614
--- Comment #10 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #9)
> Created attachment 40206 [details]
> gcc7-pr78614-3.patch
>
> The better patch actually doesn't seem to be much better, because
> simplify_replace_fn when it copies something (rather than successfully
> simplifies) doesn't clear the used bits and thus copy_rtx_if_shared
> afterwards will copy it again. But together with this simplify-rtx.c change
> it might work better. Will bootstrap/regtest that on
> x86_64-linux/i686-linux now.
That doesn't work.
libgcc/dfp-bit.c:
{standard input}: Assembler messages:
{standard input}:56: Error: unsupported relocation against ap
But gcc7-pr78614-2.patch alone does --enable-checking=yes,rtl bootstrap.
