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+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+
+#include "textflag.h"
+
+// Constants
+DATA sinhrodataL21<>+0(SB)/8, $0.231904681384629956E-16
+DATA sinhrodataL21<>+8(SB)/8, $0.693147180559945286E+00
+DATA sinhrodataL21<>+16(SB)/8, $704.E0
+GLOBL sinhrodataL21<>+0(SB), RODATA, $24
+DATA sinhrlog2<>+0(SB)/8, $0x3ff7154760000000
+GLOBL sinhrlog2<>+0(SB), RODATA, $8
+DATA sinhxinf<>+0(SB)/8, $0x7ff0000000000000
+GLOBL sinhxinf<>+0(SB), RODATA, $8
+DATA sinhxinit<>+0(SB)/8, $0x3ffb504f333f9de6
+GLOBL sinhxinit<>+0(SB), RODATA, $8
+DATA sinhxlim1<>+0(SB)/8, $800.E0
+GLOBL sinhxlim1<>+0(SB), RODATA, $8
+DATA sinhxadd<>+0(SB)/8, $0xc3200001610007fb
+GLOBL sinhxadd<>+0(SB), RODATA, $8
+DATA sinhx4ff<>+0(SB)/8, $0x4ff0000000000000
+GLOBL sinhx4ff<>+0(SB), RODATA, $8
+
+// Minimax polynomial approximations
+DATA sinhe0<>+0(SB)/8, $0.11715728752538099300E+01
+GLOBL sinhe0<>+0(SB), RODATA, $8
+DATA sinhe1<>+0(SB)/8, $0.11715728752538099300E+01
+GLOBL sinhe1<>+0(SB), RODATA, $8
+DATA sinhe2<>+0(SB)/8, $0.58578643762688526692E+00
+GLOBL sinhe2<>+0(SB), RODATA, $8
+DATA sinhe3<>+0(SB)/8, $0.19526214587563004497E+00
+GLOBL sinhe3<>+0(SB), RODATA, $8
+DATA sinhe4<>+0(SB)/8, $0.48815536475176217404E-01
+GLOBL sinhe4<>+0(SB), RODATA, $8
+DATA sinhe5<>+0(SB)/8, $0.97631072948627397816E-02
+GLOBL sinhe5<>+0(SB), RODATA, $8
+DATA sinhe6<>+0(SB)/8, $0.16271839297756073153E-02
+GLOBL sinhe6<>+0(SB), RODATA, $8
+DATA sinhe7<>+0(SB)/8, $0.23245485387271142509E-03
+GLOBL sinhe7<>+0(SB), RODATA, $8
+DATA sinhe8<>+0(SB)/8, $0.29080955860869629131E-04
+GLOBL sinhe8<>+0(SB), RODATA, $8
+DATA sinhe9<>+0(SB)/8, $0.32311267157667725278E-05
+GLOBL sinhe9<>+0(SB), RODATA, $8
+
+// Sinh returns the hyperbolic sine of the argument.
+//
+// Special cases are:
+// Sinh(±0) = ±0
+// Sinh(±Inf) = ±Inf
+// Sinh(NaN) = NaN
+// The algorithm used is minimax polynomial approximation
+// with coefficients determined with a Remez exchange algorithm.
+
+TEXT ·sinhAsm(SB),NOSPLIT,$0-16
+ FMOVD x+0(FP), F0
+ //special case Sinh(±0) = ±0
+ FMOVD $(0.0), F1
+ FCMPU F0, F1
+ BEQ sinhIsZero
+ //special case Sinh(±Inf) = ±Inf
+ FMOVD $1.797693134862315708145274237317043567981e+308, F1
+ FCMPU F1, F0
+ BLEU sinhIsInf
+ FMOVD $-1.797693134862315708145274237317043567981e+308, F1
+ FCMPU F1, F0
+ BGT sinhIsInf
+
+ MOVD $sinhrodataL21<>+0(SB), R5
+ LTDBR F0, F0
+ MOVD sinhxinit<>+0(SB), R1
+ FMOVD F0, F4
+ MOVD R1, R3
+ BLTU L19
+ FMOVD F0, F2
+L2:
+ WORD $0xED205010 //cdb %f2,.L22-.L21(%r5)
+ BYTE $0x00
+ BYTE $0x19
+ BGE L15 //jnl .L15
+ BVS L15
+ WFCEDBS V2, V2, V0
+ BEQ L20
+L12:
+ FMOVD F4, F0
+ FMOVD F0, ret+8(FP)
+ RET
+
+L15:
+ WFCEDBS V2, V2, V0
+ BVS L12
+ MOVD $sinhxlim1<>+0(SB), R2
+ FMOVD 0(R2), F0
+ WFCHDBS V0, V2, V0
+ BEQ L6
+ WFCHEDBS V4, V2, V6
+ MOVD $sinhxinf<>+0(SB), R1
+ FMOVD 0(R1), F0
+ BNE LEXITTAGsinh
+ WFCHDBS V2, V4, V2
+ BNE L16
+ FNEG F0, F0
+ FMOVD F0, ret+8(FP)
+ RET
+
+L19:
+ FNEG F0, F2
+ BR L2
+L6:
+ MOVD $sinhxadd<>+0(SB), R2
+ FMOVD 0(R2), F0
+ MOVD sinhrlog2<>+0(SB), R2
+ LDGR R2, F6
+ WFMSDB V4, V6, V0, V16
+ FMOVD sinhrodataL21<>+8(SB), F6
+ WFADB V0, V16, V0
+ FMOVD sinhrodataL21<>+0(SB), F3
+ WFMSDB V0, V6, V4, V6
+ MOVD $sinhe9<>+0(SB), R2
+ WFMADB V0, V3, V6, V0
+ FMOVD 0(R2), F1
+ MOVD $sinhe7<>+0(SB), R2
+ WFMDB V0, V0, V6
+ FMOVD 0(R2), F5
+ MOVD $sinhe8<>+0(SB), R2
+ FMOVD 0(R2), F3
+ MOVD $sinhe6<>+0(SB), R2
+ WFMADB V6, V1, V5, V1
+ FMOVD 0(R2), F5
+ MOVD $sinhe5<>+0(SB), R2
+ FMOVD 0(R2), F7
+ MOVD $sinhe3<>+0(SB), R2
+ WFMADB V6, V3, V5, V3
+ FMOVD 0(R2), F5
+ MOVD $sinhe4<>+0(SB), R2
+ WFMADB V6, V7, V5, V7
+ FMOVD 0(R2), F5
+ MOVD $sinhe2<>+0(SB), R2
+ VLEG $0, 0(R2), V20
+ WFMDB V6, V6, V18
+ WFMADB V6, V5, V20, V5
+ WFMADB V1, V18, V7, V1
+ FNEG F0, F0
+ WFMADB V3, V18, V5, V3
+ MOVD $sinhe1<>+0(SB), R3
+ WFCEDBS V2, V4, V2
+ FMOVD 0(R3), F5
+ MOVD $sinhe0<>+0(SB), R3
+ WFMADB V6, V1, V5, V1
+ FMOVD 0(R3), F5
+ VLGVG $0, V16, R2
+ WFMADB V6, V3, V5, V6
+ RLL $3, R2, R2
+ RISBGN $0, $15, $48, R2, R1
+ BEQ L9
+ WFMSDB V0, V1, V6, V0
+ MOVD $sinhx4ff<>+0(SB), R3
+ FNEG F0, F0
+ FMOVD 0(R3), F2
+ FMUL F2, F0
+ ANDW $0xFFFF, R2
+ WORD $0xA53FEFB6 //llill %r3,61366
+ SUBW R2, R3, R2
+ RISBGN $0, $15, $48, R2, R1
+ LDGR R1, F2
+ FMUL F2, F0
+ FMOVD F0, ret+8(FP)
+ RET
+
+L20:
+ MOVD $sinhxadd<>+0(SB), R2
+ FMOVD 0(R2), F2
+ MOVD sinhrlog2<>+0(SB), R2
+ LDGR R2, F0
+ WFMSDB V4, V0, V2, V6
+ FMOVD sinhrodataL21<>+8(SB), F0
+ FADD F6, F2
+ MOVD $sinhe9<>+0(SB), R2
+ FMSUB F0, F2, F4
+ FMOVD 0(R2), F1
+ FMOVD sinhrodataL21<>+0(SB), F3
+ MOVD $sinhe7<>+0(SB), R2
+ FMADD F3, F2, F4
+ FMOVD 0(R2), F0
+ MOVD $sinhe8<>+0(SB), R2
+ WFMDB V4, V4, V2
+ FMOVD 0(R2), F3
+ MOVD $sinhe6<>+0(SB), R2
+ FMOVD 0(R2), F5
+ LGDR F6, R2
+ RLL $3, R2, R2
+ RISBGN $0, $15, $48, R2, R1
+ WFMADB V2, V1, V0, V1
+ LDGR R1, F0
+ MOVD $sinhe5<>+0(SB), R1
+ WFMADB V2, V3, V5, V3
+ FMOVD 0(R1), F5
+ MOVD $sinhe3<>+0(SB), R1
+ FMOVD 0(R1), F6
+ WFMDB V2, V2, V7
+ WFMADB V2, V5, V6, V5
+ WORD $0xA7487FB6 //lhi %r4,32694
+ FNEG F4, F4
+ ANDW $0xFFFF, R2
+ SUBW R2, R4, R2
+ RISBGN $0, $15, $48, R2, R3
+ LDGR R3, F6
+ WFADB V0, V6, V16
+ MOVD $sinhe4<>+0(SB), R1
+ WFMADB V1, V7, V5, V1
+ WFMDB V4, V16, V4
+ FMOVD 0(R1), F5
+ MOVD $sinhe2<>+0(SB), R1
+ VLEG $0, 0(R1), V16
+ MOVD $sinhe1<>+0(SB), R1
+ WFMADB V2, V5, V16, V5
+ VLEG $0, 0(R1), V16
+ WFMADB V3, V7, V5, V3
+ WFMADB V2, V1, V16, V1
+ FSUB F6, F0
+ FMUL F1, F4
+ MOVD $sinhe0<>+0(SB), R1
+ FMOVD 0(R1), F6
+ WFMADB V2, V3, V6, V2
+ WFMADB V0, V2, V4, V0
+ FMOVD F0, ret+8(FP)
+ RET
+
+L9:
+ WFMADB V0, V1, V6, V0
+ MOVD $sinhx4ff<>+0(SB), R3
+ FMOVD 0(R3), F2
+ FMUL F2, F0
+ WORD $0xA72AF000 //ahi %r2,-4096
+ RISBGN $0, $15, $48, R2, R1
+ LDGR R1, F2
+ FMUL F2, F0
+ FMOVD F0, ret+8(FP)
+ RET
+
+L16:
+ FMOVD F0, ret+8(FP)
+ RET
+
+LEXITTAGsinh:
+sinhIsInf:
+sinhIsZero:
+ FMOVD F0, ret+8(FP)
+ RET
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 04:11:07 +0000