From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id 974F23858D32; Wed, 27 Dec 2023 13:23:48 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 974F23858D32 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1703683428; bh=Gyfba3XZ3V1thYAA5+myiQ2IYSWbYCRTcvBldtXxzMU=; h=From:To:Subject:Date:From; b=Vww4Vz2czhPb/KzO1E37R08zMYISkbFA2H9JtNtMWprC7IOQ21pC1fHhJmPsRMwFU sQyRFz9yj1h9bAgBAVrHn7tp/j9Zu8vHxt4/dkTbKb3w3jDzMExWNM8KiK/9DqALf+ ALVKvk8g2t9Phw+qL8GTPVOQHrDncMxc8qlAnI8o= 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 trunc 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: 28e3562609428955f34960abe83d530a116d32cf X-Git-Newrev: b046c66f0874fa75d1bc859851f7d2e28481905f Message-Id: <20231227132348.974F23858D32@sourceware.org> Date: Wed, 27 Dec 2023 13:23:48 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b046c66f0874fa75d1bc859851f7d2e28481905f commit b046c66f0874fa75d1bc859851f7d2e28481905f Author: Adhemerval Zanella Date: Tue Dec 26 16:52:19 2023 -0300 mips: Implement trunc with hardware floating-point rounding instruction Diff: --- sysdeps/mips/fpu/round_to_integer.h | 4 ++++ sysdeps/mips/fpu/s_trunc.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 a2146e4a71..78975ce3eb 100644 --- a/sysdeps/mips/fpu/round_to_integer.h +++ b/sysdeps/mips/fpu/round_to_integer.h @@ -26,6 +26,7 @@ enum round_mode { CEIL, FLOOR, + TRUNC, }; static inline double @@ -46,6 +47,9 @@ round_to_integer_double (enum round_mode mode, double x) case FLOOR: asm ("floor.l.d %0, %0" : "+f" (r)); break; + case TRUNC: + asm ("trunc.l.d %0, %0" : "+f" (r)); + break; } libc_fesetenv (&fe); diff --git a/sysdeps/mips/fpu/s_trunc.c b/sysdeps/mips/fpu/s_trunc.c new file mode 100644 index 0000000000..fcc9a8f008 --- /dev/null +++ b/sysdeps/mips/fpu/s_trunc.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 + +double +__trunc (double x) +{ + return round_to_integer_double (TRUNC, x); +} +libm_alias_double (__trunc, trunc) +#else +# include +#endif