diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_acosf.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_acosf.S | 78 |
1 files changed, 33 insertions, 45 deletions
diff --git a/sysdeps/ia64/fpu/e_acosf.S b/sysdeps/ia64/fpu/e_acosf.S index a342541..68b0b2e 100644 --- a/sysdeps/ia64/fpu/e_acosf.S +++ b/sysdeps/ia64/fpu/e_acosf.S @@ -1,10 +1,10 @@ .file "acosf.s" -// Copyright (C) 2000, 2001, Intel Corporation + +// Copyright (c) 2000 - 2003, Intel Corporation // All rights reserved. // -// Contributed 2/2/2000 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 @@ -35,19 +35,23 @@ // // 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. -// 8/15/00 Bundle added after call to __libm_error_support to properly +// 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 +// 04/17/03 Moved mutex after label // Description @@ -115,7 +119,6 @@ // answer2 = sign(x) z P(t) if x>0 // = sign(x) z P(t) + pi if x<0 -#include "libm_support.h" // // Assembly macros @@ -222,42 +225,30 @@ acosf_poly_p1a = f90 // Data tables //============================================================== -#ifdef _LIBC -.rodata -#else -.data -#endif +RODATA .align 16 -acosf_coeff_1_table: -ASM_TYPE_DIRECTIVE(acosf_coeff_1_table,@object) +LOCAL_OBJECT_START(acosf_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(acosf_coeff_1_table) +LOCAL_OBJECT_END(acosf_coeff_1_table) -acosf_coeff_2_table: -ASM_TYPE_DIRECTIVE(acosf_coeff_2_table,@object) +LOCAL_OBJECT_START(acosf_coeff_2_table) data8 0x3FA6F108E31EFBA6 // P3 data8 0xBFCA31BF175D82A0 // P8 data8 0x3FA30C0337F6418B // P5 data8 0x3FB332C9266CB1F9 // P2 data8 0x3ff921fb54442d18 // pi_by_2 -ASM_SIZE_DIRECTIVE(acosf_coeff_2_table) +LOCAL_OBJECT_END(acosf_coeff_2_table) -.align 32 -.global acosf -ASM_TYPE_DIRECTIVE(acosf,@function) .section .text -.proc acosf -.align 32 - -acosf: +GLOBAL_LIBM_ENTRY(acosf) // Load the addresses of the two tables. // Then, load the coefficients and other constants. @@ -342,7 +333,7 @@ acosf: } { .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 } @@ -350,7 +341,7 @@ acosf: { .mfb nop.m 999 fcmp.eq.s1 p6,p0 = acosf_abs_x,f1 -(p10) br.cond.spnt L(ACOSF_ZERO) ;; // Branch if x=0 +(p10) br.cond.spnt ACOSF_ZERO ;; // Branch if x=0 } { .mfi @@ -367,7 +358,7 @@ acosf: { .mfb nop.m 999 fma.s1 acosf_t4 = acosf_t2,acosf_t2,f0 -(p6) br.cond.spnt L(ACOSF_ABS_ONE) ;; // Branch if |x|=1 +(p6) br.cond.spnt ACOSF_ABS_ONE ;; // Branch if |x|=1 } { .mfi @@ -575,41 +566,40 @@ acosf: .pred.rel "mutex",p8,p7 //acosf_pred_GTsqrt2by2,acosf_pred_LEsqrt2by2 { .mfi nop.m 999 -(p8) fma.s f8 = acosf_z,acosf_Pt,acosf_sgn_x_piby2 +(p8) fma.s.s0 f8 = acosf_z,acosf_Pt,acosf_sgn_x_piby2 nop.i 999 } { .mfb nop.m 999 -(p7) fms.s f8 = acosf_const_piby2,f1,acosf_sinf1 +(p7) fms.s.s0 f8 = acosf_const_piby2,f1,acosf_sinf1 br.ret.sptk b0 ;; } -L(ACOSF_ZERO): +ACOSF_ZERO: // Here if x=0 { .mfb nop.m 999 - fma.s f8 = acosf_const_piby2,f1,f0 // acosf(0)=pi/2 + fma.s.s0 f8 = acosf_const_piby2,f1,f0 // acosf(0)=pi/2 br.ret.sptk b0 ;; } -L(ACOSF_ABS_ONE): +ACOSF_ABS_ONE: .pred.rel "mutex",p11,p12 // Here if |x|=1 { .mfi nop.m 999 -(p11) fma.s f8 = acosf_const_piby2,f1,acosf_const_piby2 // acosf(-1)=pi +(p11) fma.s.s0 f8 = acosf_const_piby2,f1,acosf_const_piby2 // acosf(-1)=pi nop.i 999 } { .mfb nop.m 999 -(p12) fma.s f8 = f1,f0,f0 // acosf(1)=0 +(p12) fma.s.s0 f8 = f1,f0,f0 // acosf(1)=0 br.ret.sptk b0 ;; } -.endp acosf -ASM_SIZE_DIRECTIVE(acosf) +GLOBAL_LIBM_END(acosf) // Stack operations when calling error support. @@ -642,8 +632,7 @@ ASM_SIZE_DIRECTIVE(acosf) // 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 @@ -699,8 +688,7 @@ __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# |