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Date: Sat, 10 Jun 2017 17:36:48 +0200
From: Szabolcs Nagy <>
Cc: David Edelsohn <>
Subject: Re: [PATCH] s390x: Add single instruction math functions

* David Edelsohn <> [2017-06-09 10:51:25 -0400]:
> The following patch is a start at single instruction math functions
> for s390x architecture to increase performance.

looks good, i wonder why gcc does not have builtins support for
ceil, floor, nearbyint, round and trunc

(on aarch64 the builtins expand to single instruction with
-fno-math-errno, but on s390x they remain libc calls

at some point we plan to have some internal header to turn
math/string calls into builtins when compiling musl with gcc)

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