diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_atan2f.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_atan2f.S | 86 |
1 files changed, 53 insertions, 33 deletions
diff --git a/sysdeps/ia64/fpu/e_atan2f.S b/sysdeps/ia64/fpu/e_atan2f.S index 67618f0437..03a4fed82f 100644 --- a/sysdeps/ia64/fpu/e_atan2f.S +++ b/sysdeps/ia64/fpu/e_atan2f.S @@ -1,10 +1,10 @@ .file "atan2f.s" - -// Copyright (c) 2000 - 2003, Intel Corporation +// Copyright (C) 2000, 2001, Intel Corporation // All rights reserved. // -// Contributed 2000 by the Intel Numerics Group, Intel Corporation +// Contributed 6/1/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story, +// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are @@ -20,7 +20,7 @@ // * The name of Intel Corporation may not be used to endorse or promote // products derived from this software without specific prior written // permission. - +// // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR @@ -35,21 +35,18 @@ // // Intel Corporation is the author of this code, and requests that all // problem reports or change requests be submitted to it directly at -// http://www.intel.com/software/products/opensource/libraries/num.htm. +// http://developer.intel.com/opensource. // History //============================================================== -// 06/01/00 Initial version -// 08/15/00 Bundle added after call to __libm_error_support to properly +// 6/01/00 Initial version +// 8/15/00 Bundle added after call to __libm_error_support to properly // set [the previously overwritten] GR_Parameter_RESULT. -// 08/17/00 Changed predicate register macro-usage to direct predicate +// 8/17/00 Changed predicate register macro-usage to direct predicate // names due to an assembler bug. -// 01/05/01 Fixed flag settings for denormal input. -// 01/19/01 Added documentation -// 01/30/01 Improved speed -// 02/06/02 Corrected .section statement -// 05/20/02 Cleaned up namespace and sf0 syntax -// 02/06/03 Reordered header: .section, .global, .proc, .align +// 1/05/01 Fixed flag settings for denormal input. +// 1/19/01 Added documentation +// 1/30/01 Improved speed // Description //========================================= @@ -229,6 +226,7 @@ // atan2f(+-0/+-0) sets single error tag to 38 // These are domain errors. +#include "libm_support.h" // // Assembly macros @@ -326,20 +324,22 @@ atan2f_poly_atan_U = f88 //atan2f_Pred_Xneg = p9 // x < 0 -RODATA +.data .align 16 -LOCAL_OBJECT_START(atan2f_coef_table1) +atan2f_coef_table1: +ASM_TYPE_DIRECTIVE(atan2f_coef_table1,@object) data8 0xBFD5555512191621 // p1 data8 0x3F522E5D33BC9BAA // p10 data8 0xBFA6E10BA401393F // p7 data8 0x3FB142A73D7C54E3 // p6 data8 0xBFC2473C5145EE38 // p3 data8 0x3FC9997E7AFBFF4E // p2 -LOCAL_OBJECT_END(atan2f_coef_table1) +ASM_SIZE_DIRECTIVE(atan2f_coef_table1) -LOCAL_OBJECT_START(atan2f_coef_table2) +atan2f_coef_table2: +ASM_TYPE_DIRECTIVE(atan2f_coef_table2,@object) data8 0xBF7DEAADAA336451 // p9 data8 0x3F97105B4160F86B // p8 data8 0xBFB68EED6A8CFA32 // p5 @@ -348,12 +348,29 @@ data8 0x3ff921fb54442d18 // pi/2 data8 0x400921fb54442d18 // pi data8 0x3fe921fb54442d18 // pi/4 data8 0x4002d97c7f3321d2 // 3pi/4 -LOCAL_OBJECT_END(atan2f_coef_table2) +ASM_SIZE_DIRECTIVE(atan2f_coef_table2) + +.global atan2f +#ifdef _LIBC +.global __atan2f +.global __ieee754_atan2f +#endif -.section .text -GLOBAL_IEEE754_ENTRY(atan2f) +.text +.align 32 + +atan2f: +.proc atan2f +#ifdef _LIBC +.proc __atan2f +__atan2f: +.proc __ieee754_atan2f +__ieee754_atan2f: +#endif + + { .mfi alloc r32 = ar.pfs,1,5,4,0 @@ -707,7 +724,7 @@ ATAN2F_XY_INF_NAN_ZERO: } { .mfb nop.m 999 -(p10) fma.s.s0 f8 = f9,f8,f0 // Result quietized y if y is nan +(p10) fma.s f8 = f9,f8,f0 // Result quietized y if y is nan (p10) br.ret.spnt b0 // Exit if y is nan } ;; @@ -720,7 +737,7 @@ ATAN2F_XY_INF_NAN_ZERO: } { .mfb nop.m 999 -(p12) fnorm.s.s0 f8 = f9 // Result quietized x if x is nan, y not nan +(p12) fnorm.s 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 } ;; @@ -740,7 +757,7 @@ ATAN2F_XY_INF_NAN_ZERO: } { .mfb nop.m 999 -(p7) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_piby4,f0 // Result +-pi/4 +(p7) fma.s f8 = atan2f_sgn_Y, atan2f_const_piby4,f0 // Result +-pi/4 (p7) br.ret.spnt b0 // Exit if x +inf and y inf } ;; @@ -773,19 +790,19 @@ ATAN2F_XY_INF_NAN_ZERO: } { .mfb nop.m 999 -(p13) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_piby2,f0 // Result +-pi/2 +(p13) fma.s 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 +(p14) fma.s 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 +(p15) fma.s f8 = atan2f_sgn_Y, atan2f_const_pi,f0 // Result +-pi (p11) br.ret.spnt b0 // Exit if x -inf } ;; @@ -812,29 +829,31 @@ ATAN2F_XY_INF_NAN_ZERO: } { .mfb nop.m 999 -(p9) fma.s.s0 f8 = atan2f_sgn_Y, atan2f_const_pi,f0 // x < 0, y 0, result +-pi +(p9) fma.s 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 +(p11) fma.s 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) +.endp atan2f +ASM_SIZE_DIRECTIVE(atan2f) -LOCAL_LIBM_ENTRY(__libm_error_region) +.proc __libm_error_region +__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 +(p11) fma.s f10 = atan2f_sgn_Y, atan2f_const_pi,f0 ;; { .mfi @@ -894,7 +913,8 @@ LOCAL_LIBM_ENTRY(__libm_error_region) } ;; -LOCAL_LIBM_END(__libm_error_region) +.endp __libm_error_region +ASM_SIZE_DIRECTIVE(__libm_error_region) .type __libm_error_support#,@function .global __libm_error_support# |