diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_acosf.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_acosf.S | 79 |
1 files changed, 46 insertions, 33 deletions
diff --git a/sysdeps/ia64/fpu/e_acosf.S b/sysdeps/ia64/fpu/e_acosf.S index 417f5b7ddc..a3425414cf 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 - 2003, Intel Corporation +// Copyright (C) 2000, 2001, Intel Corporation // All rights reserved. // -// Contributed 2000 by the Intel Numerics Group, Intel Corporation +// 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. // // 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 @@ -35,23 +35,19 @@ // // 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. -// 08/15/00 Bundle added after call to __libm_error_support to properly +// 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 -// 04/17/03 Moved mutex after label // Description @@ -119,6 +115,7 @@ // answer2 = sign(x) z P(t) if x>0 // = sign(x) z P(t) + pi if x<0 +#include "libm_support.h" // // Assembly macros @@ -225,30 +222,42 @@ acosf_poly_p1a = f90 // Data tables //============================================================== -RODATA +#ifdef _LIBC +.rodata +#else +.data +#endif .align 16 -LOCAL_OBJECT_START(acosf_coeff_1_table) +acosf_coeff_1_table: +ASM_TYPE_DIRECTIVE(acosf_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(acosf_coeff_1_table) +ASM_SIZE_DIRECTIVE(acosf_coeff_1_table) -LOCAL_OBJECT_START(acosf_coeff_2_table) +acosf_coeff_2_table: +ASM_TYPE_DIRECTIVE(acosf_coeff_2_table,@object) data8 0x3FA6F108E31EFBA6 // P3 data8 0xBFCA31BF175D82A0 // P8 data8 0x3FA30C0337F6418B // P5 data8 0x3FB332C9266CB1F9 // P2 data8 0x3ff921fb54442d18 // pi_by_2 -LOCAL_OBJECT_END(acosf_coeff_2_table) +ASM_SIZE_DIRECTIVE(acosf_coeff_2_table) +.align 32 +.global acosf +ASM_TYPE_DIRECTIVE(acosf,@function) .section .text -GLOBAL_LIBM_ENTRY(acosf) +.proc acosf +.align 32 + +acosf: // Load the addresses of the two tables. // Then, load the coefficients and other constants. @@ -333,7 +342,7 @@ GLOBAL_LIBM_ENTRY(acosf) } { .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 } @@ -341,7 +350,7 @@ GLOBAL_LIBM_ENTRY(acosf) { .mfb nop.m 999 fcmp.eq.s1 p6,p0 = acosf_abs_x,f1 -(p10) br.cond.spnt ACOSF_ZERO ;; // Branch if x=0 +(p10) br.cond.spnt L(ACOSF_ZERO) ;; // Branch if x=0 } { .mfi @@ -358,7 +367,7 @@ GLOBAL_LIBM_ENTRY(acosf) { .mfb nop.m 999 fma.s1 acosf_t4 = acosf_t2,acosf_t2,f0 -(p6) br.cond.spnt ACOSF_ABS_ONE ;; // Branch if |x|=1 +(p6) br.cond.spnt L(ACOSF_ABS_ONE) ;; // Branch if |x|=1 } { .mfi @@ -566,40 +575,42 @@ GLOBAL_LIBM_ENTRY(acosf) .pred.rel "mutex",p8,p7 //acosf_pred_GTsqrt2by2,acosf_pred_LEsqrt2by2 { .mfi nop.m 999 -(p8) fma.s.s0 f8 = acosf_z,acosf_Pt,acosf_sgn_x_piby2 +(p8) fma.s f8 = acosf_z,acosf_Pt,acosf_sgn_x_piby2 nop.i 999 } { .mfb nop.m 999 -(p7) fms.s.s0 f8 = acosf_const_piby2,f1,acosf_sinf1 +(p7) fms.s f8 = acosf_const_piby2,f1,acosf_sinf1 br.ret.sptk b0 ;; } -ACOSF_ZERO: +L(ACOSF_ZERO): // Here if x=0 { .mfb nop.m 999 - fma.s.s0 f8 = acosf_const_piby2,f1,f0 // acosf(0)=pi/2 + fma.s f8 = acosf_const_piby2,f1,f0 // acosf(0)=pi/2 br.ret.sptk b0 ;; } -ACOSF_ABS_ONE: +L(ACOSF_ABS_ONE): .pred.rel "mutex",p11,p12 // Here if |x|=1 { .mfi nop.m 999 -(p11) fma.s.s0 f8 = acosf_const_piby2,f1,acosf_const_piby2 // acosf(-1)=pi +(p11) fma.s f8 = acosf_const_piby2,f1,acosf_const_piby2 // acosf(-1)=pi nop.i 999 } { .mfb nop.m 999 -(p12) fma.s.s0 f8 = f1,f0,f0 // acosf(1)=0 +(p12) fma.s f8 = f1,f0,f0 // acosf(1)=0 br.ret.sptk b0 ;; } -GLOBAL_LIBM_END(acosf) +.endp acosf +ASM_SIZE_DIRECTIVE(acosf) + // Stack operations when calling error support. // (1) (2) @@ -631,7 +642,8 @@ GLOBAL_LIBM_END(acosf) // 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 @@ -687,7 +699,8 @@ 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# |