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Re: [PATCH] x86-64: Compile branred.c with -mprefer-vector-width=128
- From: Wilco Dijkstra <Wilco dot Dijkstra at arm dot com>
- To: "libc-alpha at sourceware dot org" <libc-alpha at sourceware dot org>
- Cc: nd <nd at arm dot com>
- Date: Tue, 18 Jun 2019 11:24:35 +0000
- Subject: Re: [PATCH] x86-64: Compile branred.c with -mprefer-vector-width=128
Hi,
I don't see an issue with building with a target specific option, but
given branred.c is way too large, complex and inefficient, would it not
make more sense to rewrite it using integer arithmetic like I did in
sincosf.h and get a much larger speedup even with -O2?
Wilco