Re: [PATCH] i386: Simplify {, v}ph{add, sub{, s}{w, d} insn patterns [PR94460]

On Sat, Apr 4, 2020 at 12:41 AM Jakub Jelinek wrote: > > Hi! > > As mentioned in the previous PR94460 patch, the RTL patterns look too > large/complicated, we can simplify them by just performing two 2 arg > permutations to move the arguments into the right spots and then just > doing the plus/min

[PATCH] i386: Simplify {,v}ph{add,sub{,s}{w,d} insn patterns [PR94460]

Hi! As mentioned in the previous PR94460 patch, the RTL patterns look too large/complicated, we can simplify them by just performing two 2 arg permutations to move the arguments into the right spots and then just doing the plus/minus (or signed saturation version thereof). Bootstrapped/regtested