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Add asm versions of fmod(), fmodf() and fmodl() on amd64. Add asm
versions of fmodf() amd fmodl() on i387. fmod is similar to remainder, and the C versions are 3 to 9 times slower than the asm versions on x86 for both, but we had the strange mixture of all 6 variants of remainder in asm and only 1 of 6 variants of fmod in asm.
This commit is contained in:
Bruce Evans
parent
e2d1500434
commit
83e449a402
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=305382
@ -1,6 +1,7 @@
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# $FreeBSD$
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ARCH_SRCS = e_remainder.S e_remainderf.S e_remainderl.S \
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ARCH_SRCS = e_fmod.S e_fmodf.S e_fmodl.S \
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e_remainder.S e_remainderf.S e_remainderl.S \
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e_sqrt.S e_sqrtf.S e_sqrtl.S \
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s_llrint.S s_llrintf.S s_llrintl.S \
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s_logbl.S s_lrint.S s_lrintf.S s_lrintl.S \
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54
lib/msun/amd64/e_fmod.S
Normal file
54
lib/msun/amd64/e_fmod.S
Normal file
@ -0,0 +1,54 @@
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/*
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* Copyright (c) 1993,94 Winning Strategies, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Winning Strategies, Inc.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Based on the i387 version written by:
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* J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$")
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ENTRY(fmod)
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movsd %xmm0,-8(%rsp)
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movsd %xmm1,-16(%rsp)
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fldl -16(%rsp)
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fldl -8(%rsp)
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1: fprem
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fstsw %ax
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testw $0x400,%ax
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jne 1b
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fstpl -8(%rsp)
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movsd -8(%rsp),%xmm0
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fstp %st
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ret
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END(fmod)
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.section .note.GNU-stack,"",%progbits
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24
lib/msun/amd64/e_fmodf.S
Normal file
24
lib/msun/amd64/e_fmodf.S
Normal file
@ -0,0 +1,24 @@
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/*
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* Based on the i387 version written by J.T. Conklin <jtc@netbsd.org>.
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* Public domain.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$")
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ENTRY(fmodf)
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movss %xmm0,-4(%rsp)
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movss %xmm1,-8(%rsp)
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flds -8(%rsp)
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flds -4(%rsp)
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1: fprem
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fstsw %ax
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testw $0x400,%ax
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jne 1b
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fstps -4(%rsp)
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movss -4(%rsp),%xmm0
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fstp %st
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ret
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END(fmodf)
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.section .note.GNU-stack,"",%progbits
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50
lib/msun/amd64/e_fmodl.S
Normal file
50
lib/msun/amd64/e_fmodl.S
Normal file
@ -0,0 +1,50 @@
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/*
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* Copyright (c) 1993,94 Winning Strategies, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Winning Strategies, Inc.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Based on the i387 version written by:
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* J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$")
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ENTRY(fmodl)
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fldt 24(%rsp)
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fldt 8(%rsp)
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1: fprem
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fstsw %ax
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testw $0x400,%ax
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jne 1b
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fstp %st(1)
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ret
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END(fmodl)
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.section .note.GNU-stack,"",%progbits
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@ -7,13 +7,14 @@ ARCH_SRCS = e_exp.S e_fmod.S e_log.S e_log10.S \
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s_trunc.S
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# float counterparts
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ARCH_SRCS+= e_log10f.S e_logf.S e_remainderf.S \
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ARCH_SRCS+= e_fmodf.S e_log10f.S e_logf.S e_remainderf.S \
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e_sqrtf.S s_ceilf.S s_copysignf.S s_floorf.S \
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s_llrintf.S s_logbf.S s_lrintf.S \
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s_remquof.S s_rintf.S s_scalbnf.S s_significandf.S s_truncf.S
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# long double counterparts
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ARCH_SRCS+= e_remainderl.S e_sqrtl.S s_ceill.S s_copysignl.S \
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ARCH_SRCS+= e_fmodl.S \
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e_remainderl.S e_sqrtl.S s_ceill.S s_copysignl.S \
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s_floorl.S s_llrintl.S \
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s_logbl.S s_lrintl.S s_remquol.S s_rintl.S s_scalbnl.S s_truncl.S
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24
lib/msun/i387/e_fmodf.S
Normal file
24
lib/msun/i387/e_fmodf.S
Normal file
@ -0,0 +1,24 @@
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/*
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* Based on the i387 version written by J.T. Conklin <jtc@netbsd.org>.
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* Public domain.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$")
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ENTRY(fmodf)
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movss %xmm0,-4(%rsp)
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movss %xmm1,-8(%rsp)
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flds -8(%rsp)
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flds -4(%rsp)
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1: fprem
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fstsw %ax
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testw $0x400,%ax
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jne 1b
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fstps -4(%rsp)
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movss -4(%rsp),%xmm0
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fstp %st
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ret
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END(fmodf)
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.section .note.GNU-stack,"",%progbits
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50
lib/msun/i387/e_fmodl.S
Normal file
50
lib/msun/i387/e_fmodl.S
Normal file
@ -0,0 +1,50 @@
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/*
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* Copyright (c) 1993,94 Winning Strategies, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Winning Strategies, Inc.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Based on the i387 version written by:
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* J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$")
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ENTRY(fmodl)
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fldt 24(%rsp)
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fldt 8(%rsp)
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1: fprem
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fstsw %ax
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testw $0x400,%ax
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jne 1b
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fstp %st(1)
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ret
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END(fmodl)
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.section .note.GNU-stack,"",%progbits
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