PING^1 [PATCH] rs6000: Fix some issues related to Power10 fusion [PR104024]

["Kewen.Lin" <linkw@linux.ibm.com>]

Hi,

Gentle ping: https://gcc.gnu.org/pipermail/gcc-patches/2022-February/590692.html

BR,
Kewen

on 2022/2/22 10:47 AM, Kewen.Lin via Gcc-patches wrote:
> Hi,
> 
> As PR104024 shows, currently the option -mpower10-fusion isn't guarded
> under -mcpu=power10, so compiler can optimize some patterns unexpectedly.
> As the option is undocumented, this patch just simply unmasks it.
> For some define_insns in fusion.md which have constraint v, they don't
> have the correct conditions there, it can cause ICEs if the modes are
> not supported there.  Besides, it seems better to use BOOL_128 instead
> of VM since the patterns are vector logical operations.
> 
> Bootstrapped and regtested on powerpc64-linux-gnu P8 and
> powerpc64le-linux-gnu P9 and P10.
> 
> Is it ok for trunk?
> 
> BR,
> Kewen
> -----
> 	PR target/104024
> 
> gcc/ChangeLog:
> 
> 	* config/rs6000/fusion.md: Regenerate.
> 	* config/rs6000/genfusion.pl: Add the check for define_insns
> 	with constraint v, use BOOL_128 instead of VM.
> 
> gcc/testsuite/ChangeLog:
> 
> 	* gcc.target/powerpc/pr104024-1.c: New test.
> 	* gcc.target/powerpc/pr104024-2.c: New test.