Re: [PATCH, rs6000] Add support for lxvx and stxvx P9 instructions

2015-12-28 Thread David Edelsohn
On Sun, Dec 27, 2015 at 6:00 PM, Bill Schmidt wrote: > Hi, > > POWER9 adds endian-neutral load and store vector instructions that > support unaligned accesses. This allows more efficient code generation > than POWER8. With these new instructions, we no longer generate the > load-swap and swap-sto

[PATCH, rs6000] Add support for lxvx and stxvx P9 instructions

2015-12-27 Thread Bill Schmidt
Hi, POWER9 adds endian-neutral load and store vector instructions that support unaligned accesses. This allows more efficient code generation than POWER8. With these new instructions, we no longer generate the load-swap and swap-store sequences, and we no longer need to perform swap optimization