From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id 75E533858416; Tue, 26 Dec 2023 20:06:28 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 75E533858416 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1703621188; bh=ZGpxCxzTU54/rj2DEPuNIHgzM9bVPfeWZUdAztyqH7o=; h=From:To:Subject:Date:From; b=DsqsxQ4LsRDCzTtacmbPxnYnu/znxgpj+LhhmNj9ADe6C1jPgJ3KybT6f+B0ueiwX J4vBTGLOUlG/WZBTidHOvBjE2gfDmg/SzmJOFfYMLF+831dtSWJ0ZAzMtoJ3gx5BWA amdpaXuOuY2wT+p4yDiiuBB6vR6UQLukFFTg6kgM= 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 floor 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: aa380931b0f1a6888dec548532a5b15d36631ac3 X-Git-Newrev: f5b0332d9200c3ca70e8a29d7a7b6d0519aa00da Message-Id: <20231226200628.75E533858416@sourceware.org> Date: Tue, 26 Dec 2023 20:06:28 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f5b0332d9200c3ca70e8a29d7a7b6d0519aa00da commit f5b0332d9200c3ca70e8a29d7a7b6d0519aa00da Author: Adhemerval Zanella Date: Tue Dec 26 16:43:54 2023 -0300 mips: Implement floor with hardware floating-point rounding instruction Diff: --- sysdeps/mips/fpu/round_to_integer.h | 4 ++++ sysdeps/mips/fpu/s_floor.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 7ac6783e54..a2146e4a71 100644 --- a/sysdeps/mips/fpu/round_to_integer.h +++ b/sysdeps/mips/fpu/round_to_integer.h @@ -25,6 +25,7 @@ enum round_mode { CEIL, + FLOOR, }; static inline double @@ -42,6 +43,9 @@ round_to_integer_double (enum round_mode mode, double x) case CEIL: asm ("ceil.l.d %0, %0" : "+f" (r)); break; + case FLOOR: + asm ("floor.l.d %0, %0" : "+f" (r)); + break; } libc_fesetenv (&fe); diff --git a/sysdeps/mips/fpu/s_floor.c b/sysdeps/mips/fpu/s_floor.c new file mode 100644 index 0000000000..52b60c7ebc --- /dev/null +++ b/sysdeps/mips/fpu/s_floor.c @@ -0,0 +1,36 @@ +/* Largest integral value not greater than argument. 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 +__floor (double x) +{ + return round_to_integer_double (FLOOR, x); +} +libm_alias_double (__floor, floor) +#else +# include +#endif