diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_asinf.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_asinf.S | 72 |
1 files changed, 42 insertions, 30 deletions
diff --git a/sysdeps/ia64/fpu/e_asinf.S b/sysdeps/ia64/fpu/e_asinf.S index af24165d8e..ddae85880b 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 - 2003, Intel Corporation +// Copyright (C) 2000, 2001, Intel Corporation // All rights reserved. // -// Contributed 2000 by the Intel Numerics Group, Intel Corporation +// 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. // // 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 @@ -35,25 +35,21 @@ // // 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 //============================================================== -// 02/02/00 Initial version -// 06/28/00 Improved speed -// 06/31/00 Changed register allocation because of some duplicate macros +// 2/02/00 Initial revision +// 6/28/00 Improved speed +// 6/31/00 Changed register allocation because of some duplicate macros // moved nan exit bundle up to gain a cycle. -// 08/08/00 Improved speed by avoiding SIR flush. -// 08/15/00 Bundle added after call to __libm_error_support to properly +// 8/08/00 Improved speed by avoiding SIR flush. +// 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. // 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]. @@ -123,6 +119,7 @@ // answer2 = - sign(x) z P(t) + (sign(x) pi/2) // +#include "libm_support.h" // Assembly macros //========================================= @@ -228,30 +225,42 @@ asinf_poly_p1a = f90 // Data tables //============================================================== -RODATA +#ifdef _LIBC +.rodata +#else +.data +#endif .align 16 -LOCAL_OBJECT_START(asinf_coeff_1_table) +asinf_coeff_1_table: +ASM_TYPE_DIRECTIVE(asinf_coeff_1_table,@object) data8 0x3FC5555607DCF816 // P1 data8 0x3F9CF81AD9BAB2C6 // P4 data8 0x3FC59E0975074DF3 // P7 data8 0xBFA6F4CC2780AA1D // P6 data8 0x3FC2DD45292E93CB // P9 data8 0x3fe6a09e667f3bcd // sqrt(2)/2 -LOCAL_OBJECT_END(asinf_coeff_1_table) +ASM_SIZE_DIRECTIVE(asinf_coeff_1_table) -LOCAL_OBJECT_START(asinf_coeff_2_table) +asinf_coeff_2_table: +ASM_TYPE_DIRECTIVE(asinf_coeff_2_table,@object) data8 0x3FA6F108E31EFBA6 // P3 data8 0xBFCA31BF175D82A0 // P8 data8 0x3FA30C0337F6418B // P5 data8 0x3FB332C9266CB1F9 // P2 data8 0x3ff921fb54442d18 // pi_by_2 -LOCAL_OBJECT_END(asinf_coeff_2_table) +ASM_SIZE_DIRECTIVE(asinf_coeff_2_table) +.align 32 +.global asinf + .section .text -GLOBAL_LIBM_ENTRY(asinf) +.proc asinf +.align 32 + +asinf: // Load the addresses of the two tables. // Then, load the coefficients and other constants. @@ -336,7 +345,7 @@ GLOBAL_LIBM_ENTRY(asinf) } { .mfb nop.m 999 -(p8) fma.s.s0 f8 = f8,f1,f0 +(p8) fma.s f8 = f8,f1,f0 (p8) br.ret.spnt b0 ;; // Exit if x=nan } @@ -361,7 +370,7 @@ GLOBAL_LIBM_ENTRY(asinf) { .mfb nop.m 999 fma.s1 asinf_t4 = asinf_t2,asinf_t2,f0 -(p6) br.cond.spnt ASINF_ABS_ONE ;; // Branch if |x|=1 +(p6) br.cond.spnt L(ASINF_ABS_ONE) ;; // Branch if |x|=1 } { .mfi @@ -563,26 +572,27 @@ GLOBAL_LIBM_ENTRY(asinf) .pred.rel "mutex",p8,p7 //asinf_pred_GTsqrt2by2,asinf_pred_LEsqrt2by2 { .mfi nop.m 999 -(p8) fnma.s.s0 f8 = asinf_z,asinf_Pt,asinf_sgn_x_piby2 +(p8) fnma.s f8 = asinf_z,asinf_Pt,asinf_sgn_x_piby2 nop.i 999 } { .mfb nop.m 999 -(p7) fma.s.s0 f8 = asinf_x11,asinf_poly_Bx,asinf_poly_Ax +(p7) fma.s f8 = asinf_x11,asinf_poly_Bx,asinf_poly_Ax br.ret.sptk b0 ;; } -ASINF_ABS_ONE: +L(ASINF_ABS_ONE): // Here for short exit if |x|=1 { .mfb nop.m 999 - fma.s.s0 f8 = asinf_sgn_x,asinf_const_piby2,f0 + fma.s f8 = asinf_sgn_x,asinf_const_piby2,f0 br.ret.sptk b0 } ;; -GLOBAL_LIBM_END(asinf) +.endp asinf +ASM_SIZE_DIRECTIVE(asinf) // Stack operations when calling error support. // (1) (2) @@ -613,7 +623,8 @@ GLOBAL_LIBM_END(asinf) // restore gp // restore ar.pfs -LOCAL_LIBM_ENTRY(__libm_error_region) +.proc __libm_error_region +__libm_error_region: .prologue { .mfi add GR_Parameter_Y=-32,sp // Parameter 2 value @@ -669,7 +680,8 @@ LOCAL_LIBM_ENTRY(__libm_error_region) br.ret.sptk b0 // Return };; -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# |