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02/02/2024 06:09:55 PM
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abs.go
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acos_s390x.s
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acosh.go
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acosh_s390x.s
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all_test.go
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arith_s390x.go
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arith_s390x_test.go
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asin.go
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asin_s390x.s
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asinh.go
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asinh_s390x.s
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atan.go
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atan2.go
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atan2_s390x.s
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atan_s390x.s
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atanh.go
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atanh_s390x.s
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big
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bits
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bits.go
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cbrt.go
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cbrt_s390x.s
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cmplx
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const.go
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const_test.go
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copysign.go
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cosh_s390x.s
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dim.go
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dim_amd64.s
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dim_arm64.s
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dim_asm.go
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dim_noasm.go
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dim_riscv64.s
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dim_s390x.s
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erf.go
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erf_s390x.s
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erfc_s390x.s
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erfinv.go
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example_test.go
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exp.go
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exp2_asm.go
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exp2_noasm.go
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exp_amd64.go
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exp_amd64.s
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exp_arm64.s
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exp_asm.go
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exp_noasm.go
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exp_s390x.s
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expm1.go
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expm1_s390x.s
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export_s390x_test.go
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export_test.go
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floor.go
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floor_386.s
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floor_amd64.s
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floor_arm64.s
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floor_asm.go
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floor_noasm.go
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floor_ppc64x.s
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floor_s390x.s
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floor_wasm.s
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fma.go
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frexp.go
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gamma.go
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huge_test.go
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hypot.go
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hypot_386.s
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hypot_amd64.s
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hypot_asm.go
264 bytes
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hypot_noasm.go
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j0.go
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j1.go
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jn.go
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ldexp.go
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lgamma.go
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log.go
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log10.go
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log10_s390x.s
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log1p.go
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log1p_s390x.s
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log_amd64.s
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log_asm.go
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log_s390x.s
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log_stub.go
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logb.go
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mod.go
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modf.go
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modf_arm64.s
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modf_asm.go
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modf_noasm.go
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modf_ppc64x.s
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nextafter.go
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pow.go
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pow10.go
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pow_s390x.s
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rand
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remainder.go
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signbit.go
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sin.go
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sin_s390x.s
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sincos.go
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sinh.go
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sinh_s390x.s
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sqrt.go
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stubs.go
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stubs_s390x.s
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tan.go
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tan_s390x.s
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tanh.go
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tanh_s390x.s
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trig_reduce.go
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unsafe.go
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Editing: expm1_s390x.s
Close
// Copyright 2017 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" // Minimax polynomial approximation and other constants DATA 路expm1rodataL22<> + 0(SB)/8, $-1.0 DATA 路expm1rodataL22<> + 8(SB)/8, $800.0E+00 DATA 路expm1rodataL22<> + 16(SB)/8, $1.0 DATA 路expm1rodataL22<> + 24(SB)/8, $-.231904681384629956E-16 DATA 路expm1rodataL22<> + 32(SB)/8, $0.50000000000000029671E+00 DATA 路expm1rodataL22<> + 40(SB)/8, $0.16666666666666676570E+00 DATA 路expm1rodataL22<> + 48(SB)/8, $0.83333333323590973444E-02 DATA 路expm1rodataL22<> + 56(SB)/8, $0.13889096526400683566E-02 DATA 路expm1rodataL22<> + 64(SB)/8, $0.41666666661701152924E-01 DATA 路expm1rodataL22<> + 72(SB)/8, $0.19841562053987360264E-03 DATA 路expm1rodataL22<> + 80(SB)/8, $-.693147180559945286E+00 DATA 路expm1rodataL22<> + 88(SB)/8, $0.144269504088896339E+01 DATA 路expm1rodataL22<> + 96(SB)/8, $704.0E+00 GLOBL 路expm1rodataL22<> + 0(SB), RODATA, $104 DATA 路expm1xmone<> + 0(SB)/8, $0xbff0000000000000 GLOBL 路expm1xmone<> + 0(SB), RODATA, $8 DATA 路expm1xinf<> + 0(SB)/8, $0x7ff0000000000000 GLOBL 路expm1xinf<> + 0(SB), RODATA, $8 DATA 路expm1x4ff<> + 0(SB)/8, $0x4ff0000000000000 GLOBL 路expm1x4ff<> + 0(SB), RODATA, $8 DATA 路expm1x2ff<> + 0(SB)/8, $0x2ff0000000000000 GLOBL 路expm1x2ff<> + 0(SB), RODATA, $8 DATA 路expm1xaddexp<> + 0(SB)/8, $0xc2f0000100003ff0 GLOBL 路expm1xaddexp<> + 0(SB), RODATA, $8 // Log multipliers table DATA 路expm1tab<> + 0(SB)/8, $0.0 DATA 路expm1tab<> + 8(SB)/8, $-.171540871271399150E-01 DATA 路expm1tab<> + 16(SB)/8, $-.306597931864376363E-01 DATA 路expm1tab<> + 24(SB)/8, $-.410200970469965021E-01 DATA 路expm1tab<> + 32(SB)/8, $-.486343079978231466E-01 DATA 路expm1tab<> + 40(SB)/8, $-.538226193725835820E-01 DATA 路expm1tab<> + 48(SB)/8, $-.568439602538111520E-01 DATA 路expm1tab<> + 56(SB)/8, $-.579091847395528847E-01 DATA 路expm1tab<> + 64(SB)/8, $-.571909584179366341E-01 DATA 路expm1tab<> + 72(SB)/8, $-.548312665987204407E-01 DATA 路expm1tab<> + 80(SB)/8, $-.509471843643441085E-01 DATA 路expm1tab<> + 88(SB)/8, $-.456353588448863359E-01 DATA 路expm1tab<> + 96(SB)/8, $-.389755254243262365E-01 DATA 路expm1tab<> + 104(SB)/8, $-.310332908285244231E-01 DATA 路expm1tab<> + 112(SB)/8, $-.218623539150173528E-01 DATA 路expm1tab<> + 120(SB)/8, $-.115062908917949451E-01 GLOBL 路expm1tab<> + 0(SB), RODATA, $128 // Expm1 returns e**x - 1, the base-e exponential of x minus 1. // It is more accurate than Exp(x) - 1 when x is near zero. // // Special cases are: // Expm1(+Inf) = +Inf // Expm1(-Inf) = -1 // Expm1(NaN) = NaN // Very large values overflow to -1 or +Inf. // The algorithm used is minimax polynomial approximation using a table of // polynomial coefficients determined with a Remez exchange algorithm. TEXT 路expm1Asm(SB), NOSPLIT, $0-16 FMOVD x+0(FP), F0 MOVD $路expm1rodataL22<>+0(SB), R5 LTDBR F0, F0 BLTU L20 FMOVD F0, F2 L2: WORD $0xED205060 //cdb %f2,.L23-.L22(%r5) BYTE $0x00 BYTE $0x19 BGE L16 BVS L16 WFCEDBS V2, V2, V2 BVS LEXITTAGexpm1 MOVD $路expm1xaddexp<>+0(SB), R1 FMOVD 88(R5), F1 FMOVD 0(R1), F2 WFMSDB V0, V1, V2, V1 FMOVD 80(R5), F6 WFADB V1, V2, V4 FMOVD 72(R5), F2 FMADD F6, F4, F0 FMOVD 64(R5), F3 FMOVD 56(R5), F6 FMOVD 48(R5), F5 FMADD F2, F0, F6 WFMADB V0, V5, V3, V5 WFMDB V0, V0, V2 LGDR F1, R1 WFMADB V6, V2, V5, V6 FMOVD 40(R5), F3 FMOVD 32(R5), F5 WFMADB V0, V3, V5, V3 FMOVD 24(R5), F5 WFMADB V2, V6, V3, V2 FMADD F5, F4, F0 FMOVD 16(R5), F6 WFMADB V0, V2, V6, V2 RISBGZ $57, $60, $3, R1, R3 WORD $0xB3130022 //lcdbr %f2,%f2 MOVD $路expm1tab<>+0(SB), R2 WORD $0x68432000 //ld %f4,0(%r3,%r2) FMADD F4, F0, F0 SLD $48, R1, R2 WFMSDB V2, V0, V4, V0 LDGR R2, F4 WORD $0xB3130000 //lcdbr %f0,%f0 FSUB F4, F6 WFMSDB V0, V4, V6, V0 FMOVD F0, ret+8(FP) RET L16: WFCEDBS V2, V2, V4 BVS LEXITTAGexpm1 WORD $0xED205008 //cdb %f2,.L34-.L22(%r5) BYTE $0x00 BYTE $0x19 BLT L6 WFCEDBS V2, V0, V0 BVS L7 MOVD $路expm1xinf<>+0(SB), R1 FMOVD 0(R1), F0 FMOVD F0, ret+8(FP) RET L20: WORD $0xB3130020 //lcdbr %f2,%f0 BR L2 L6: MOVD $路expm1xaddexp<>+0(SB), R1 FMOVD 88(R5), F5 FMOVD 0(R1), F4 WFMSDB V0, V5, V4, V5 FMOVD 80(R5), F3 WFADB V5, V4, V1 VLEG $0, 48(R5), V16 WFMADB V1, V3, V0, V3 FMOVD 56(R5), F4 FMOVD 64(R5), F7 FMOVD 72(R5), F6 WFMADB V3, V16, V7, V16 WFMADB V3, V6, V4, V6 WFMDB V3, V3, V4 MOVD $路expm1tab<>+0(SB), R2 WFMADB V6, V4, V16, V6 VLEG $0, 32(R5), V16 FMOVD 40(R5), F7 WFMADB V3, V7, V16, V7 VLEG $0, 24(R5), V16 WFMADB V4, V6, V7, V4 WFMADB V1, V16, V3, V1 FMOVD 16(R5), F6 FMADD F4, F1, F6 LGDR F5, R1 WORD $0xB3130066 //lcdbr %f6,%f6 RISBGZ $57, $60, $3, R1, R3 WORD $0x68432000 //ld %f4,0(%r3,%r2) FMADD F4, F1, F1 MOVD $0x4086000000000000, R2 FMSUB F1, F6, F4 WORD $0xB3130044 //lcdbr %f4,%f4 WFCHDBS V2, V0, V0 BEQ L21 ADDW $0xF000, R1 RISBGN $0, $15, $48, R1, R2 LDGR R2, F0 FMADD F0, F4, F0 MOVD $路expm1x4ff<>+0(SB), R3 FMOVD 0(R5), F4 FMOVD 0(R3), F2 WFMADB V2, V0, V4, V0 FMOVD F0, ret+8(FP) RET L7: MOVD $路expm1xmone<>+0(SB), R1 FMOVD 0(R1), F0 FMOVD F0, ret+8(FP) RET L21: ADDW $0x1000, R1 RISBGN $0, $15, $48, R1, R2 LDGR R2, F0 FMADD F0, F4, F0 MOVD $路expm1x2ff<>+0(SB), R3 FMOVD 0(R5), F4 FMOVD 0(R3), F2 WFMADB V2, V0, V4, V0 FMOVD F0, ret+8(FP) RET LEXITTAGexpm1: FMOVD F0, ret+8(FP) RET