Re: [PATCH] i386: Better patch to improve avx* vector concatenation [PR93594]

2020-02-07 Thread Uros Bizjak
On Fri, Feb 7, 2020 at 9:05 AM Jakub Jelinek wrote: > > Hi! > > After thinking some more on this, we can do better; rather than having to > add a new prereload splitter pattern to catch all other cases where it might > be beneficial to fold first part of an UNSPEC_CAST back to the unspec >

[PATCH] i386: Better patch to improve avx* vector concatenation [PR93594]

2020-02-07 Thread Jakub Jelinek
Hi! After thinking some more on this, we can do better; rather than having to add a new prereload splitter pattern to catch all other cases where it might be beneficial to fold first part of an UNSPEC_CAST back to the unspec operand, this patch reverts the *.md changes I've made yesterday and