mirror of
https://github.com/golang/go
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224 lines
6.1 KiB
ArmAsm
224 lines
6.1 KiB
ArmAsm
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "textflag.h"
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// Minimax polynomial coefficients and other constants
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DATA ·asinhrodataL18<> + 0(SB)/8, $0.749999999977387502E-01
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DATA ·asinhrodataL18<> + 8(SB)/8, $-.166666666666657082E+00
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DATA ·asinhrodataL18<> + 16(SB)/8, $0.303819368237360639E-01
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DATA ·asinhrodataL18<> + 24(SB)/8, $-.446428569571752982E-01
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DATA ·asinhrodataL18<> + 32(SB)/8, $0.173500047922695924E-01
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DATA ·asinhrodataL18<> + 40(SB)/8, $-.223719767210027185E-01
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DATA ·asinhrodataL18<> + 48(SB)/8, $0.113655037946822130E-01
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DATA ·asinhrodataL18<> + 56(SB)/8, $0.579747490622448943E-02
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DATA ·asinhrodataL18<> + 64(SB)/8, $-.139372433914359122E-01
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DATA ·asinhrodataL18<> + 72(SB)/8, $-.218674325255800840E-02
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DATA ·asinhrodataL18<> + 80(SB)/8, $-.891074277756961157E-02
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DATA ·asinhrodataL18<> + 88(SB)/8, $.41375273347623353626
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DATA ·asinhrodataL18<> + 96(SB)/8, $.51487302528619766235E+04
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DATA ·asinhrodataL18<> + 104(SB)/8, $-1.67526912689208984375
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DATA ·asinhrodataL18<> + 112(SB)/8, $0.181818181818181826E+00
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DATA ·asinhrodataL18<> + 120(SB)/8, $-.165289256198351540E-01
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DATA ·asinhrodataL18<> + 128(SB)/8, $0.200350613573012186E-02
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DATA ·asinhrodataL18<> + 136(SB)/8, $-.273205381970859341E-03
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DATA ·asinhrodataL18<> + 144(SB)/8, $0.397389654305194527E-04
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DATA ·asinhrodataL18<> + 152(SB)/8, $0.938370938292558173E-06
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DATA ·asinhrodataL18<> + 160(SB)/8, $0.212881813645679599E-07
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DATA ·asinhrodataL18<> + 168(SB)/8, $-.602107458843052029E-05
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DATA ·asinhrodataL18<> + 176(SB)/8, $-.148682720127920854E-06
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DATA ·asinhrodataL18<> + 184(SB)/8, $-5.5
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DATA ·asinhrodataL18<> + 192(SB)/8, $1.0
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DATA ·asinhrodataL18<> + 200(SB)/8, $1.0E-20
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GLOBL ·asinhrodataL18<> + 0(SB), RODATA, $208
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// Table of log correction terms
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DATA ·asinhtab2080<> + 0(SB)/8, $0.585235384085551248E-01
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DATA ·asinhtab2080<> + 8(SB)/8, $0.412206153771168640E-01
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DATA ·asinhtab2080<> + 16(SB)/8, $0.273839003221648339E-01
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DATA ·asinhtab2080<> + 24(SB)/8, $0.166383778368856480E-01
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DATA ·asinhtab2080<> + 32(SB)/8, $0.866678223433169637E-02
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DATA ·asinhtab2080<> + 40(SB)/8, $0.319831684989627514E-02
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DATA ·asinhtab2080<> + 48(SB)/8, $0.0
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DATA ·asinhtab2080<> + 56(SB)/8, $-.113006378583725549E-02
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DATA ·asinhtab2080<> + 64(SB)/8, $-.367979419636602491E-03
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DATA ·asinhtab2080<> + 72(SB)/8, $0.213172484510484979E-02
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DATA ·asinhtab2080<> + 80(SB)/8, $0.623271047682013536E-02
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DATA ·asinhtab2080<> + 88(SB)/8, $0.118140812789696885E-01
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DATA ·asinhtab2080<> + 96(SB)/8, $0.187681358930914206E-01
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DATA ·asinhtab2080<> + 104(SB)/8, $0.269985148668178992E-01
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DATA ·asinhtab2080<> + 112(SB)/8, $0.364186619761331328E-01
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DATA ·asinhtab2080<> + 120(SB)/8, $0.469505379381388441E-01
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GLOBL ·asinhtab2080<> + 0(SB), RODATA, $128
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// Asinh returns the inverse hyperbolic sine of the argument.
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//
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// Special cases are:
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// Asinh(±0) = ±0
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// Asinh(±Inf) = ±Inf
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// Asinh(NaN) = NaN
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// The algorithm used is minimax polynomial approximation
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// with coefficients determined with a Remez exchange algorithm.
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TEXT ·asinhAsm(SB), NOSPLIT, $0-16
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FMOVD x+0(FP), F0
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MOVD $·asinhrodataL18<>+0(SB), R9
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WORD $0xB3CD00C0 //lgdr %r12, %f0
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WORD $0xC0293FDF //iilf %r2,1071644671
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BYTE $0xFF
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BYTE $0xFF
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SRAD $32, R12
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WORD $0xB917001C //llgtr %r1,%r12
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MOVW R1, R6
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MOVW R2, R7
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CMPBLE R6, R7, L2
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WORD $0xC0295FEF //iilf %r2,1609564159
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BYTE $0xFF
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BYTE $0xFF
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MOVW R2, R7
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CMPBLE R6, R7, L14
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L3:
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WORD $0xC0297FEF //iilf %r2,2146435071
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BYTE $0xFF
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BYTE $0xFF
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CMPW R1, R2
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BGT L1
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WORD $0xB3120000 //ltdbr %f0,%f0
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FMOVD F0, F10
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BLTU L15
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L9:
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FMOVD $0, F0
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WFADB V0, V10, V0
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WORD $0xC0398006 //iilf %r3,2147909631
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BYTE $0x7F
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BYTE $0xFF
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WORD $0xB3CD0050 //lgdr %r5, %f0
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SRAD $32, R5
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MOVH $0x0, R2
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SUBW R5, R3
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FMOVD $0, F8
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WORD $0xEC4320AF //risbg %r4,%r3,32,128+47,0
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BYTE $0x00
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BYTE $0x55
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BYTE $0x18 //lr %r1,%r4
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BYTE $0x14
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WORD $0xEC24001F //risbgn %r2,%r4,64-64+0,64-64+0+32-1,64-0-32
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BYTE $0x20
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BYTE $0x59
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SUBW $0x100000, R1
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SRAW $8, R1, R1
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ORW $0x45000000, R1
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BR L6
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L2:
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MOVD $0x30000000, R2
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CMPW R1, R2
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BGT L16
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FMOVD 200(R9), F2
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FMADD F2, F0, F0
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L1:
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FMOVD F0, ret+8(FP)
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RET
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L14:
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WORD $0xB3120000 //ltdbr %f0,%f0
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BLTU L17
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FMOVD F0, F10
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L4:
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FMOVD 192(R9), F2
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WFMADB V0, V0, V2, V0
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WORD $0xB3120000 //ltdbr %f0,%f0
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FSQRT F0, F8
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L5:
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WFADB V8, V10, V0
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WORD $0xC0398006 //iilf %r3,2147909631
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BYTE $0x7F
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BYTE $0xFF
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WORD $0xB3CD0050 //lgdr %r5, %f0
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SRAD $32, R5
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MOVH $0x0, R2
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SUBW R5, R3
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WORD $0xEC4320AF //risbg %r4,%r3,32,128+47,0
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BYTE $0x00
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BYTE $0x55
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SRAW $8, R4, R1
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WORD $0xEC24001F //risbgn %r2,%r4,64-64+0,64-64+0+32-1,64-0-32
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BYTE $0x20
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BYTE $0x59
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ORW $0x45000000, R1
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L6:
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WORD $0xB3C10022 //ldgr %f2,%r2
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FMOVD 184(R9), F0
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WFMADB V8, V2, V0, V8
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FMOVD 176(R9), F4
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WFMADB V10, V2, V8, V2
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FMOVD 168(R9), F0
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FMOVD 160(R9), F6
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FMOVD 152(R9), F1
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WFMADB V2, V6, V4, V6
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WFMADB V2, V1, V0, V1
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WFMDB V2, V2, V4
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FMOVD 144(R9), F0
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WFMADB V6, V4, V1, V6
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FMOVD 136(R9), F1
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WORD $0xEC3339BC //risbg %r3,%r3,57,128+60,64-13
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BYTE $0x33
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BYTE $0x55
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WFMADB V2, V0, V1, V0
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FMOVD 128(R9), F1
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WFMADB V4, V6, V0, V6
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FMOVD 120(R9), F0
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WFMADB V2, V1, V0, V1
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VLVGF $0, R1, V0
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WFMADB V4, V6, V1, V4
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LDEBR F0, F0
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FMOVD 112(R9), F6
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WFMADB V2, V4, V6, V4
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MOVD $·asinhtab2080<>+0(SB), R1
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FMOVD 104(R9), F1
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WORD $0x68331000 //ld %f3,0(%r3,%r1)
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FMOVD 96(R9), F6
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WFMADB V2, V4, V3, V2
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WFMADB V0, V1, V6, V0
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FMOVD 88(R9), F4
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WFMADB V0, V4, V2, V0
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MOVD R12, R6
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CMPBGT R6, $0, L1
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WORD $0xB3130000 //lcdbr %f0,%f0
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FMOVD F0, ret+8(FP)
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RET
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L16:
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WFMDB V0, V0, V1
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FMOVD 80(R9), F6
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WFMDB V1, V1, V4
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FMOVD 72(R9), F2
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WFMADB V4, V2, V6, V2
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FMOVD 64(R9), F3
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FMOVD 56(R9), F6
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WFMADB V4, V2, V3, V2
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FMOVD 48(R9), F3
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WFMADB V4, V6, V3, V6
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FMOVD 40(R9), F5
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FMOVD 32(R9), F3
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WFMADB V4, V2, V5, V2
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WFMADB V4, V6, V3, V6
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FMOVD 24(R9), F5
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FMOVD 16(R9), F3
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WFMADB V4, V2, V5, V2
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WFMADB V4, V6, V3, V6
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FMOVD 8(R9), F5
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FMOVD 0(R9), F3
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WFMADB V4, V2, V5, V2
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WFMADB V4, V6, V3, V4
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WFMDB V0, V1, V6
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WFMADB V1, V4, V2, V4
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FMADD F4, F6, F0
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FMOVD F0, ret+8(FP)
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RET
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L17:
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WORD $0xB31300A0 //lcdbr %f10,%f0
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BR L4
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L15:
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WORD $0xB31300A0 //lcdbr %f10,%f0
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BR L9
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