From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id 9DB573858407; Tue, 26 Dec 2023 20:06:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9DB573858407 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1703621198; bh=Vx66+nF7SBhOkkkwRvckBB+GubRaH9fl8XAOWCOsTwM=; h=From:To:Subject:Date:From; b=o7AnfjCihruI3xJZkchzp91I2eFEX5IAbub90xVgjJbZpUr5tCYVxBaKogxb7+O7O K1lH4lnXVGo/fDUkMIMStavmGoB/i1FhYvjAOCbGlGDYCdW9PeQOKVXOD06bhQ7Vey d1fnrXX4yufYibF7iXWkmyWERgR40z/15mWUoTxI= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Adhemerval Zanella To: glibc-cvs@sourceware.org Subject: [glibc/azanella/mips-hw-fp-round] mips: Implement roundeven with hardware floating-point rounding instruction X-Act-Checkin: glibc X-Git-Author: Adhemerval Zanella X-Git-Refname: refs/heads/azanella/mips-hw-fp-round X-Git-Oldrev: 626d3ad67a2f5a4ef28273dba8ac246363aab205 X-Git-Newrev: cb5220b1c1094fe2b44c76421e97b5d269eae5b2 Message-Id: <20231226200638.9DB573858407@sourceware.org> Date: Tue, 26 Dec 2023 20:06:38 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=cb5220b1c1094fe2b44c76421e97b5d269eae5b2 commit cb5220b1c1094fe2b44c76421e97b5d269eae5b2 Author: Adhemerval Zanella Date: Tue Dec 26 17:03:07 2023 -0300 mips: Implement roundeven with hardware floating-point rounding instruction Diff: --- sysdeps/mips/fpu/round_to_integer.h | 4 ++++ sysdeps/mips/fpu/s_roundeven.c | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/sysdeps/mips/fpu/round_to_integer.h b/sysdeps/mips/fpu/round_to_integer.h index 78975ce3eb..b2ba56b458 100644 --- a/sysdeps/mips/fpu/round_to_integer.h +++ b/sysdeps/mips/fpu/round_to_integer.h @@ -27,6 +27,7 @@ enum round_mode CEIL, FLOOR, TRUNC, + ROUNDEVEN, }; static inline double @@ -50,6 +51,9 @@ round_to_integer_double (enum round_mode mode, double x) case TRUNC: asm ("trunc.l.d %0, %0" : "+f" (r)); break; + case ROUNDEVEN: + asm ("round.l.d %0, %0" : "+f" (r)); + break; } libc_fesetenv (&fe); diff --git a/sysdeps/mips/fpu/s_roundeven.c b/sysdeps/mips/fpu/s_roundeven.c new file mode 100644 index 0000000000..55cb315bf1 --- /dev/null +++ b/sysdeps/mips/fpu/s_roundeven.c @@ -0,0 +1,36 @@ +/* Round towards the nearest even number. MIPS version. + Copyright (C) 2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#if ((__mips_fpr == 64) \ + && (__mips_hard_float == 1) \ + && ((__mips == 32 && __mips_isa_rev > 1) || __mips == 64)) + +#define NO_MATH_REDIRECT +#include +#include +#include + +double +__roundeven (double x) +{ + return round_to_integer_double (ROUNDEVEN, x); +} +libm_alias_double (__roundeven, roundeven) +#else +# include +#endif