diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_asinf.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_asinf.S | 73 |
1 files changed, 30 insertions, 43 deletions
diff --git a/sysdeps/ia64/fpu/e_asinf.S b/sysdeps/ia64/fpu/e_asinf.S index ddae85880b..f9a1312b26 100644 --- a/sysdeps/ia64/fpu/e_asinf.S +++ b/sysdeps/ia64/fpu/e_asinf.S @@ -1,10 +1,10 @@ .file "asinf.s" -// Copyright (C) 2000, 2001, Intel Corporation + +// Copyright (c) 2000 - 2003, Intel Corporation // All rights reserved. // -// Contributed 2/02/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story, -// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation. +// Contributed 2000 by the Intel Numerics Group, 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 +35,25 @@ // // Intel Corporation is the author of this code, and requests that all // problem reports or change requests be submitted to it directly at -// http://developer.intel.com/opensource. +// http://www.intel.com/software/products/opensource/libraries/num.htm. // History //============================================================== -// 2/02/00 Initial revision -// 6/28/00 Improved speed -// 6/31/00 Changed register allocation because of some duplicate macros +// 02/02/00 Initial version +// 06/28/00 Improved speed +// 06/31/00 Changed register allocation because of some duplicate macros // moved nan exit bundle up to gain a cycle. -// 8/08/00 Improved speed by avoiding SIR flush. -// 8/15/00 Bundle added after call to __libm_error_support to properly +// 08/08/00 Improved speed by avoiding SIR flush. +// 08/15/00 Bundle added after call to __libm_error_support to properly // set [the previously overwritten] GR_Parameter_RESULT. -// 8/17/00 Changed predicate register macro-usage to direct predicate +// 08/17/00 Changed predicate register macro-usage to direct predicate // names due to an assembler bug. // 10/17/00 Improved speed of x=0 and x=1 paths, set D flag if x denormal. +// 03/13/01 Corrected sign of imm1 value in dep instruction. +// 05/20/02 Cleaned up namespace and sf0 syntax +// 02/06/03 Reordered header: .section, .global, .proc, .align + // Description //========================================= // The asinf function computes the arc sine of x in the range [-pi,+pi]. @@ -119,7 +123,6 @@ // answer2 = - sign(x) z P(t) + (sign(x) pi/2) // -#include "libm_support.h" // Assembly macros //========================================= @@ -225,42 +228,30 @@ asinf_poly_p1a = f90 // Data tables //============================================================== -#ifdef _LIBC -.rodata -#else -.data -#endif +RODATA .align 16 -asinf_coeff_1_table: -ASM_TYPE_DIRECTIVE(asinf_coeff_1_table,@object) +LOCAL_OBJECT_START(asinf_coeff_1_table) data8 0x3FC5555607DCF816 // P1 data8 0x3F9CF81AD9BAB2C6 // P4 data8 0x3FC59E0975074DF3 // P7 data8 0xBFA6F4CC2780AA1D // P6 data8 0x3FC2DD45292E93CB // P9 data8 0x3fe6a09e667f3bcd // sqrt(2)/2 -ASM_SIZE_DIRECTIVE(asinf_coeff_1_table) +LOCAL_OBJECT_END(asinf_coeff_1_table) -asinf_coeff_2_table: -ASM_TYPE_DIRECTIVE(asinf_coeff_2_table,@object) +LOCAL_OBJECT_START(asinf_coeff_2_table) data8 0x3FA6F108E31EFBA6 // P3 data8 0xBFCA31BF175D82A0 // P8 data8 0x3FA30C0337F6418B // P5 data8 0x3FB332C9266CB1F9 // P2 data8 0x3ff921fb54442d18 // pi_by_2 -ASM_SIZE_DIRECTIVE(asinf_coeff_2_table) +LOCAL_OBJECT_END(asinf_coeff_2_table) -.align 32 -.global asinf - .section .text -.proc asinf -.align 32 - -asinf: +GLOBAL_LIBM_ENTRY(asinf) // Load the addresses of the two tables. // Then, load the coefficients and other constants. @@ -345,7 +336,7 @@ asinf: } { .mfb nop.m 999 -(p8) fma.s f8 = f8,f1,f0 +(p8) fma.s.s0 f8 = f8,f1,f0 (p8) br.ret.spnt b0 ;; // Exit if x=nan } @@ -370,7 +361,7 @@ asinf: { .mfb nop.m 999 fma.s1 asinf_t4 = asinf_t2,asinf_t2,f0 -(p6) br.cond.spnt L(ASINF_ABS_ONE) ;; // Branch if |x|=1 +(p6) br.cond.spnt ASINF_ABS_ONE ;; // Branch if |x|=1 } { .mfi @@ -572,28 +563,26 @@ asinf: .pred.rel "mutex",p8,p7 //asinf_pred_GTsqrt2by2,asinf_pred_LEsqrt2by2 { .mfi nop.m 999 -(p8) fnma.s f8 = asinf_z,asinf_Pt,asinf_sgn_x_piby2 +(p8) fnma.s.s0 f8 = asinf_z,asinf_Pt,asinf_sgn_x_piby2 nop.i 999 } { .mfb nop.m 999 -(p7) fma.s f8 = asinf_x11,asinf_poly_Bx,asinf_poly_Ax +(p7) fma.s.s0 f8 = asinf_x11,asinf_poly_Bx,asinf_poly_Ax br.ret.sptk b0 ;; } -L(ASINF_ABS_ONE): +ASINF_ABS_ONE: // Here for short exit if |x|=1 { .mfb nop.m 999 - fma.s f8 = asinf_sgn_x,asinf_const_piby2,f0 + fma.s.s0 f8 = asinf_sgn_x,asinf_const_piby2,f0 br.ret.sptk b0 } ;; -.endp asinf -ASM_SIZE_DIRECTIVE(asinf) - +GLOBAL_LIBM_END(asinf) // Stack operations when calling error support. // (1) (2) // sp -> + psp -> + @@ -623,8 +612,7 @@ ASM_SIZE_DIRECTIVE(asinf) // restore gp // restore ar.pfs -.proc __libm_error_region -__libm_error_region: +LOCAL_LIBM_ENTRY(__libm_error_region) .prologue { .mfi add GR_Parameter_Y=-32,sp // Parameter 2 value @@ -680,8 +668,7 @@ __libm_error_region: br.ret.sptk b0 // Return };; -.endp __libm_error_region -ASM_SIZE_DIRECTIVE(__libm_error_region) +LOCAL_LIBM_END(__libm_error_region) .type __libm_error_support#,@function .global __libm_error_support# |