?? e_atan2f.s
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{ .mfi nop.m 999(p8) fma.s1 atan2f_const_1 = atan2f_sgn_Y,f0,f0 nop.i 999} { .mfi nop.m 999(p9) fma.s1 atan2f_const_1 = atan2f_sgn_Y,f1,f0 nop.i 999 ;;} { .mfi nop.m 999(p6) fnma.s1 atan2f_U = atan2f_Z,f1,f0 nop.i 999} { .mfi nop.m 999(p6) fma.s1 atan2f_Usq = atan2f_Z,atan2f_Z,f0 nop.i 999 ;;} { .mfi nop.m 999(p7) fma.s1 atan2f_U = atan2f_A,f1,f0 nop.i 999} { .mfi nop.m 999(p7) fma.s1 atan2f_Usq = atan2f_A,atan2f_A,f0 nop.i 999 ;;}{ .mfi nop.m 999(p6) frcpa.s1 atan2f_Q1,p0 = f1,atan2f_T_denom nop.i 999} { .mfi nop.m 999(p6) fma.s1 atan2f_R_denom = atan2f_T_denom,f1,f0 nop.i 999 ;;} { .mfi nop.m 999(p7) frcpa.s1 atan2f_Q1,p0 = f1,atan2f_G_denom nop.i 999} { .mfi nop.m 999(p7) fma.s1 atan2f_R_denom = atan2f_G_denom,f1,f0 nop.i 999 ;;} { .mfi nop.m 999(p6) fnma.s1 atan2f_R_numer = atan2f_T_numer,f1,f0 nop.i 999} { .mfi nop.m 999(p7) fma.s1 atan2f_R_numer = atan2f_G_numer,f1,f0 nop.i 999 ;;} { .mfi nop.m 999(p6) fnma.s1 atan2f_p1rnum = atan2f_T_numer,atan2f_coef_p1,f0 nop.i 999 ;;} { .mfi nop.m 999(p7) fma.s1 atan2f_p1rnum = atan2f_G_numer,atan2f_coef_p1,f0 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_U4 = atan2f_Usq,atan2f_Usq,f0 nop.i 999}{ .mfi nop.m 999 fma.s1 atan2f_poly_u109 = atan2f_Usq,atan2f_coef_p10,atan2f_coef_p9 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_poly_u87 = atan2f_Usq,atan2f_coef_p8,atan2f_coef_p7 nop.i 999} { .mfi nop.m 999 fma.s1 atan2f_poly_u65 = atan2f_Usq,atan2f_coef_p6,atan2f_coef_p5 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_poly_u43 = atan2f_Usq,atan2f_coef_p4,atan2f_coef_p3 nop.i 999} { .mfi nop.m 999 fnma.s1 atan2f_Q_beta = atan2f_Q1,atan2f_R_denom,f1 nop.i 999 ;;}{ .mfi nop.m 999 fma.s1 atan2f_poly_u21 = atan2f_Usq,atan2f_coef_p2,atan2f_coef_p1 nop.i 999} { .mfi nop.m 999 fma.s1 atan2f_r = atan2f_Q1,atan2f_R_numer,f0 nop.i 999 ;;}{ .mfi nop.m 999(p6) fma.s1 atan2f_C = atan2f_sgn_Y,atan2f_const_piby2,f0 nop.i 999} { .mfi nop.m 999(p7) fma.s1 atan2f_C = atan2f_const_1,atan2f_const_pi,f0 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_U6 = atan2f_U4,atan2f_Usq,f0 nop.i 999}{ .mfi nop.m 999 fma.s1 atan2f_U8 = atan2f_U4,atan2f_U4,f0 nop.i 999 ;;}{ .mfi nop.m 999 fma.s1 atan2f_poly_u10to7 = atan2f_U4,atan2f_poly_u109,atan2f_poly_u87 nop.i 999} { .mfi nop.m 999 fma.s1 atan2f_pR = atan2f_p1rnum,atan2f_Q1,f0 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_poly_u6to3 = atan2f_U4,atan2f_poly_u65,atan2f_poly_u43 nop.i 999} { .mfi nop.m 999 fma.s1 atan2f_Q2 = atan2f_Q1,atan2f_Q_beta,atan2f_Q1 nop.i 999 ;;}{ .mfi nop.m 999 fma.s1 atan2f_Q_beta2 = atan2f_Q_beta,atan2f_Q_beta,f0 nop.i 999} { .mfi nop.m 999 fma.s1 atan2f_rsq = atan2f_r,atan2f_r,f0 nop.i 999 ;;}{ .mfi nop.m 999 fma.s1 atan2f_poly_u210 = atan2f_Usq,atan2f_poly_u21,f1 nop.i 999 ;;} { .mfi nop.m 999 fcmp.eq.s0 p8,p0 = f8,f9 // Dummy op to set flag on denormal inputs nop.i 999}{ .mfi nop.m 999 fma.s1 atan2f_poly_u10to3 = atan2f_U8,atan2f_poly_u10to7,atan2f_poly_u6to3 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_Q3 = atan2f_Q2,atan2f_Q_beta2,atan2f_Q2 nop.i 999} { .mfi nop.m 999 fma.s1 atan2f_pRC = atan2f_rsq,atan2f_pR,atan2f_C nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_poly_u10to0 = atan2f_U6,atan2f_poly_u10to3,atan2f_poly_u210 nop.i 999 ;;} { .mfi nop.m 999 fma.s1 atan2f_pQRC = atan2f_R_numer,atan2f_Q3,atan2f_pRC nop.i 999 ;;} { .mfb nop.m 999 fma.s.s0 f8 = atan2f_U,atan2f_poly_u10to0,atan2f_pQRC br.ret.sptk b0 ;;} ATAN2F_XY_INF_NAN_ZERO:{ .mfi nop.m 999 fclass.m p10,p0 = f8,0xc3 // Is y nan nop.i 999};;{ .mfi nop.m 999 fclass.m p12,p0 = f9,0xc3 // Is x nan nop.i 999};;{ .mfi nop.m 999 fclass.m p6,p0 = f9,0x21 // Is x +inf nop.i 999}{ .mfb nop.m 999(p10) fma.s.s0 f8 = f9,f8,f0 // Result quietized y if y is nan(p10) br.ret.spnt b0 // Exit if y is nan};;{ .mfi nop.m 999(p6) fclass.m.unc p7,p8 = f8,0x23 // x +inf, is y inf nop.i 999}{ .mfb nop.m 999(p12) fnorm.s.s0 f8 = f9 // Result quietized x if x is nan, y not nan(p12) br.ret.spnt b0 // Exit if x is nan, y not nan};;// Here if x or y inf, or x or y zero{ .mfi nop.m 999 fcmp.eq.s0 p15,p0 = f8,f9 // Dummy op to set flag on denormal inputs nop.i 999};;{ .mfi nop.m 999 fclass.m p11,p12 = f9,0x22 // Is x -inf nop.i 999}{ .mfb nop.m 999(p7) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_piby4,f0 // Result +-pi/4(p7) br.ret.spnt b0 // Exit if x +inf and y inf};;{ .mfb nop.m 999(p8) fmerge.s f8 = f8,f0 // If x +inf and y not inf, result +-0(p8) br.ret.spnt b0 // Exit if x +inf and y not inf};;{ .mfi nop.m 999(p12) fclass.m.unc p13,p0 = f8,0x23 // x not -inf, is y inf nop.i 999};;{ .mfi nop.m 999(p11) fclass.m.unc p14,p15 = f8,0x23 // x -inf, is y inf nop.i 999};;{ .mfi nop.m 999 fclass.m p6,p7 = f9,0x7 // Is x zero nop.i 999}{ .mfb nop.m 999(p13) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_piby2,f0 // Result +-pi/2(p13) br.ret.spnt b0 // Exit if x not -inf and y inf};;{ .mfi nop.m 999(p14) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_3piby4,f0 // Result +-3pi/4 nop.i 999}{ .mfb nop.m 999(p15) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_pi,f0 // Result +-pi(p11) br.ret.spnt b0 // Exit if x -inf};;// Here if x or y zero{ .mfi nop.m 999(p7) fclass.m.unc p8,p9 = f9,0x19 // x not zero, y zero, is x > zero nop.i 999};;{ .mfi nop.m 999(p6) fclass.m.unc p10,p11 = f8,0x7 // x zero, is y zero nop.i 999};;{ .mfi nop.m 999(p8) fmerge.s f8 = f8, f0 // x > zero and y zero, result is +-zero nop.i 999}{ .mfb nop.m 999(p9) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_pi,f0 // x < 0, y 0, result +-pi(p10) br.cond.spnt __libm_error_region // Branch if x zero and y zero};;{ .mfb nop.m 999(p11) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_piby2,f0 // x zero, y not zero br.ret.sptk b0 // Final special case exit};;GLOBAL_IEEE754_END(atan2f)LOCAL_LIBM_ENTRY(__libm_error_region).prologue mov GR_Parameter_TAG = 38 fclass.m p10,p11 = f9,0x5 // @zero | @pos;;(p10) fmerge.s f10 = f8, f0(p11) fma.s.s0 f10 = atan2f_sgn_Y, atan2f_const_pi,f0;;{ .mfi add GR_Parameter_Y=-32,sp // Parameter 2 value nop.f 999.save ar.pfs,GR_SAVE_PFS mov GR_SAVE_PFS=ar.pfs // Save ar.pfs}{ .mfi.fframe 64 add sp=-64,sp // Create new stack nop.f 0 mov GR_SAVE_GP=gp // Save gp};;{ .mmi stfs [GR_Parameter_Y] = f9,16 // Store Parameter 2 on stack add GR_Parameter_X = 16,sp // Parameter 1 address.save b0, GR_SAVE_B0 mov GR_SAVE_B0=b0 // Save b0};;.body{ .mib stfs [GR_Parameter_X] = f8 // Store Parameter 1 on stack add GR_Parameter_RESULT = 0,GR_Parameter_Y nop.b 0 // Parameter 3 address}{ .mib stfs [GR_Parameter_Y] = f10 // Store Parameter 3 on stack add GR_Parameter_Y = -16,GR_Parameter_Y br.call.sptk b0=__libm_error_support# // Call error handling function};;{ .mmi nop.m 0 nop.m 0 add GR_Parameter_RESULT = 48,sp};;{ .mmi ldfs f8 = [GR_Parameter_RESULT] // Get return result off stack.restore sp add sp = 64,sp // Restore stack pointer mov b0 = GR_SAVE_B0 // Restore return address};;{ .mib mov gp = GR_SAVE_GP // Restore gp mov ar.pfs = GR_SAVE_PFS // Restore ar.pfs br.ret.sptk b0 // Return};;LOCAL_LIBM_END(__libm_error_region).type __libm_error_support#,@function.global __libm_error_support#?? 快捷鍵說明
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