From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id F31B13858C41; Wed, 27 Dec 2023 13:24:08 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org F31B13858C41 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1703683448; bh=c49L4ctq1+Dg7a+xKOnHz1vaw5e/inxXDe01xy2R/RQ=; h=From:To:Subject:Date:From; b=VhA8FxloFMhV3gVSEWmNsEWHugQsAVKEM0t5MtJtyNdROm2uCbKtZ+9kzoVNjWdH7 eF4eOqr9Cd+XbhIUupTsUUOCZwnA7JRSVL6YezQEYPW7e5tmi/fAzG8y/wMkKzUYo4 XTcw3wAx6jlDoIDeVKcmmtOt1O/ZCuqD0qsNKVlc= 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 truncf 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: 16da0a4727b145ae384b791839821c294eee1626 X-Git-Newrev: 8b3c945b3f5365834261f3e78225dabc441f467f Message-Id: <20231227132408.F31B13858C41@sourceware.org> Date: Wed, 27 Dec 2023 13:24:08 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8b3c945b3f5365834261f3e78225dabc441f467f commit 8b3c945b3f5365834261f3e78225dabc441f467f Author: Adhemerval Zanella Date: Wed Dec 27 10:03:06 2023 -0300 mips: Implement truncf with hardware floating-point rounding instruction Diff: --- sysdeps/mips/fpu/roundf_to_integer.h | 5 +++++ sysdeps/mips/fpu/s_truncf.c | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/sysdeps/mips/fpu/roundf_to_integer.h b/sysdeps/mips/fpu/roundf_to_integer.h index 089322072e..f1a7fefda9 100644 --- a/sysdeps/mips/fpu/roundf_to_integer.h +++ b/sysdeps/mips/fpu/roundf_to_integer.h @@ -27,6 +27,7 @@ enum round_mode { CEIL, FLOOR, + TRUNC, }; static inline float @@ -47,6 +48,10 @@ round_to_integer_float (enum round_mode mode, float x) case FLOOR: asm ("floor.l.s %0, %0" : "+f" (r)); break; + case TRUNC: + asm ("trunc.l.s %0, %0" : "+f" (r)); + break; + break; } libc_fesetenvf (&fe); diff --git a/sysdeps/mips/fpu/s_truncf.c b/sysdeps/mips/fpu/s_truncf.c new file mode 100644 index 0000000000..f108c0e51f --- /dev/null +++ b/sysdeps/mips/fpu/s_truncf.c @@ -0,0 +1,36 @@ +/* Round to integer, toward zero. 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 + +float +__truncf (float x) +{ + return round_to_integer_float (TRUNC, x); +} +libm_alias_float (__trunc, trunc) +#else +# include +#endif