gistfile1.txt

00000000000a37e0 <main.main>:
   a37e0:	f9400b81 	ldr	x1, [x28, #16]
   a37e4:	910003e2 	mov	x2, sp
   a37e8:	eb01005f 	cmp	x2, x1
   a37ec:	54000649 	b.ls	a38b4 <main.main+0xd4>  // b.plast
   a37f0:	f81c0ffe 	str	x30, [sp, #-64]!
   a37f4:	f81f83fd 	stur	x29, [sp, #-8]
   a37f8:	d10023fd 	sub	x29, sp, #0x8
   a37fc:	f000027b 	adrp	x27, f2000 <runtime.gcbits.*+0xef8>
   a3800:	9132237b 	add	x27, x27, #0xc88
   a3804:	fd400360 	ldr	d0, [x27]
   a3808:	fd0007e0 	str	d0, [sp, #8]
   a380c:	97ff4195 	bl	73e60 <math.Tanh>
   a3810:	fd400be0 	ldr	d0, [sp, #16]
   a3814:	a902ffff 	stp	xzr, xzr, [sp, #40]
   a3818:	1e6e1001 	fmov	d1, #1.000000000000000000e+00
   a381c:	1f408400 	fmsub	d0, d0, d0, d1
   a3820:	fd0013e0 	str	d0, [sp, #32]
   a3824:	1e612802 	fadd	d2, d0, d1
   a3828:	1e613842 	fsub	d2, d2, d1
   a382c:	fd0007e2 	str	d2, [sp, #8]
   a3830:	97fdd620 	bl	190b0 <runtime.convT64>
   a3834:	f9400be0 	ldr	x0, [sp, #16]
   a3838:	f00000a1 	adrp	x1, ba000 <type.*+0xa000>
   a383c:	913f0021 	add	x1, x1, #0xfc0
   a3840:	f90017e1 	str	x1, [sp, #40]
   a3844:	f9001be0 	str	x0, [sp, #48]
   a3848:	9100a3e0 	add	x0, sp, #0x28
   a384c:	f90007e0 	str	x0, [sp, #8]
   a3850:	b24003e2 	orr	x2, xzr, #0x1
   a3854:	f9000be2 	str	x2, [sp, #16]
   a3858:	f9000fe2 	str	x2, [sp, #24]
   a385c:	97ffff8d 	bl	a3690 <log.Println>
   a3860:	a902ffff 	stp	xzr, xzr, [sp, #40]
   a3864:	fd4013e0 	ldr	d0, [sp, #32]
   a3868:	1e6e1001 	fmov	d1, #1.000000000000000000e+00
   a386c:	1e613800 	fsub	d0, d0, d1
   a3870:	1e602820 	fadd	d0, d1, d0
   a3874:	fd0007e0 	str	d0, [sp, #8]
   a3878:	97fdd60e 	bl	190b0 <runtime.convT64>
   a387c:	f9400be0 	ldr	x0, [sp, #16]
   a3880:	f00000a1 	adrp	x1, ba000 <type.*+0xa000>
   a3884:	913f0021 	add	x1, x1, #0xfc0
   a3888:	f90017e1 	str	x1, [sp, #40]
   a388c:	f9001be0 	str	x0, [sp, #48]
   a3890:	9100a3e0 	add	x0, sp, #0x28
   a3894:	f90007e0 	str	x0, [sp, #8]
   a3898:	b24003e0 	orr	x0, xzr, #0x1
   a389c:	f9000be0 	str	x0, [sp, #16]
   a38a0:	f9000fe0 	str	x0, [sp, #24]
   a38a4:	97ffff7b 	bl	a3690 <log.Println>
   a38a8:	f85f83fd 	ldur	x29, [sp, #-8]
   a38ac:	f84407fe 	ldr	x30, [sp], #64
   a38b0:	d65f03c0 	ret
   a38b4:	aa1e03e3 	mov	x3, x30
   a38b8:	97ff2422 	bl	6c940 <runtime.morestack_noctxt>
   a38bc:	17ffffc9 	b	a37e0 <main.main>

go-tool-objdump.s

TEXT main.main(SB) /home/ubuntu/go/src/scratchpad/testtanh/main.go
  main.go:8		0xa37e0			f9400b81		MOVD 16(R28), R1			
  main.go:8		0xa37e4			910003e2		MOVD RSP, R2				
  main.go:8		0xa37e8			eb01005f		CMP R1, R2				
  main.go:8		0xa37ec			54000649		BLS 50(PC)				
  main.go:8		0xa37f0			f81c0ffe		MOVD.W R30, -64(RSP)			
  main.go:8		0xa37f4			f81f83fd		MOVD R29, -8(RSP)			
  main.go:8		0xa37f8			d10023fd		SUB $8, RSP, R29			
  main.go:10		0xa37fc			f000027b		ADRP 323584(PC), R27			
  main.go:10		0xa3800			9132237b		ADD $3208, R27, R27			
  main.go:10		0xa3804			fd400360		FMOVD (R27), F0				
  main.go:10		0xa3808			fd0007e0		FMOVD F0, 8(RSP)			
  main.go:10		0xa380c			97ff4195		CALL math.Tanh(SB)			
  main.go:10		0xa3810			fd400be0		FMOVD 16(RSP), F0			
  main.go:13		0xa3814			a902ffff		STP (ZR, ZR), 40(RSP)			
  main.go:11		0xa3818			1e6e1001		FMOVD $1., F1				
  main.go:11		0xa381c			1f408400		FMSUBD F0, F1, F0, F0			
  main.go:11		0xa3820			fd0013e0		FMOVD F0, 32(RSP)			
  main.go:11		0xa3824			1e612802		FADDD F1, F0, F2			
  main.go:11		0xa3828			1e613842		FSUBD F1, F2, F2			
  main.go:13		0xa382c			fd0007e2		FMOVD F2, 8(RSP)			
  main.go:13		0xa3830			97fdd620		CALL runtime.convT64(SB)		
  main.go:13		0xa3834			f9400be0		MOVD 16(RSP), R0			
  main.go:13		0xa3838			f00000a1		ADRP 94208(PC), R1			
  main.go:13		0xa383c			913f0021		ADD $4032, R1, R1			
  main.go:13		0xa3840			f90017e1		MOVD R1, 40(RSP)			
  main.go:13		0xa3844			f9001be0		MOVD R0, 48(RSP)			
  main.go:13		0xa3848			9100a3e0		ADD $40, RSP, R0			
  main.go:13		0xa384c			f90007e0		MOVD R0, 8(RSP)				
  main.go:13		0xa3850			b24003e2		ORR $1, ZR, R2				
  main.go:13		0xa3854			f9000be2		MOVD R2, 16(RSP)			
  main.go:13		0xa3858			f9000fe2		MOVD R2, 24(RSP)			
  main.go:13		0xa385c			97ffff8d		CALL log.Println(SB)			
  main.go:14		0xa3860			a902ffff		STP (ZR, ZR), 40(RSP)			
  main.go:12		0xa3864			fd4013e0		FMOVD 32(RSP), F0			
  main.go:12		0xa3868			1e6e1001		FMOVD $1., F1				
  main.go:12		0xa386c			1e613800		FSUBD F1, F0, F0			
  main.go:12		0xa3870			1e602820		FADDD F0, F1, F0			
  main.go:14		0xa3874			fd0007e0		FMOVD F0, 8(RSP)			
  main.go:14		0xa3878			97fdd60e		CALL runtime.convT64(SB)		
  main.go:14		0xa387c			f9400be0		MOVD 16(RSP), R0			
  main.go:14		0xa3880			f00000a1		ADRP 94208(PC), R1			
  main.go:14		0xa3884			913f0021		ADD $4032, R1, R1			
  main.go:14		0xa3888			f90017e1		MOVD R1, 40(RSP)			
  main.go:14		0xa388c			f9001be0		MOVD R0, 48(RSP)			
  main.go:14		0xa3890			9100a3e0		ADD $40, RSP, R0			
  main.go:14		0xa3894			f90007e0		MOVD R0, 8(RSP)				
  main.go:14		0xa3898			b24003e0		ORR $1, ZR, R0				
  main.go:14		0xa389c			f9000be0		MOVD R0, 16(RSP)			
  main.go:14		0xa38a0			f9000fe0		MOVD R0, 24(RSP)			
  main.go:14		0xa38a4			97ffff7b		CALL log.Println(SB)			
  main.go:15		0xa38a8			f85f83fd		LDUR -8(RSP), R29			
  main.go:15		0xa38ac			f84407fe		MOVD.P 64(RSP), R30			
  main.go:15		0xa38b0			d65f03c0		RET					
  main.go:8		0xa38b4			aa1e03e3		MOVD R30, R3				
  main.go:8		0xa38b8			97ff2422		CALL runtime.morestack_noctxt(SB)	
  main.go:8		0xa38bc			17ffffc9		JMP main.main(SB)			

main.go

package main

import (
	"math"
)

func main() {
	v := 0.2228940815087735
	tanh := math.Tanh(v)
	//log.Println(math.Float64bits(tanh))
	_ = 1 - tanh*tanh + 1 - 1
	_ = 1 - tanh*tanh - 1 + 1
}