[PATCH], Add power9 support to GCC, patch #8 (add integer multiply/add)

[David Edelsohn]

On Tue, Nov 10, 2015 at 1:39 PM, Michael Meissner
<meissner@linux.vnet.ibm.com> wrote:
> This patch adds support for the MADDLD instruciton, which is a fused
> multiply/add instruction for integers.  At this time, it is for 64-bit
> multiplies only.  Eventually, we will restructure 128-bit multiply so that we
> can use the 64x64 + 64 high bit varients.
>
> I have bootstrapped a compiler with this change in and there were no
> regressions.  Is it ok to apply to the trunk?
>
> [gcc]
> 2015-11-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
>
>         * config/rs6000/rs6000.h (TARGET_MADDLD): Add support for the ISA
>         3.0 integer multiply-add instruction.
>         * config/rs6000/rs6000.md (<u>mul<mode><dmode>3): Likewise.
>
> [gcc/testsuite]
> 2015-11-10  Michael Meissner  <meissner@linux.vnet.ibm.com>
>
>         * gcc.target/powerpc/maddld.c: New test.

Okay.

Thanks, David