Re: [PATCH, i386, AVX-512ER] vrcp28ps auto generation

2016-06-20 Thread Uros Bizjak
On Mon, Jun 20, 2016 at 7:09 PM, Ilya Verbin wrote: > Hi! > > This patch emits vrcp28ps and vmulps istructions for ix86_emit_swdivsf. > The relative error is < 2^-23, so no additional iteration is necessary. > Regtested using various benchmarks on a AVX-512ER machine. OK for trunk? > > > gcc/ >

[PATCH, i386, AVX-512ER] vrcp28ps auto generation

2016-06-20 Thread Ilya Verbin
Hi! This patch emits vrcp28ps and vmulps istructions for ix86_emit_swdivsf. The relative error is < 2^-23, so no additional iteration is necessary. Regtested using various benchmarks on a AVX-512ER machine. OK for trunk? gcc/ * config/i386/i386.c (ix86_emit_swdivsf): Emit vrcp28ps. gcc/