diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_sqrt.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_sqrt.S | 69 |
1 files changed, 44 insertions, 25 deletions
diff --git a/sysdeps/ia64/fpu/e_sqrt.S b/sysdeps/ia64/fpu/e_sqrt.S index 0e208b3de1..dd057f58ee 100644 --- a/sysdeps/ia64/fpu/e_sqrt.S +++ b/sysdeps/ia64/fpu/e_sqrt.S @@ -1,11 +1,11 @@ .file "sqrt.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 // met: @@ -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 @@ -35,28 +35,27 @@ // // 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 -// 04/04/00 Unwind support added -// 08/15/00 Bundle added after call to __libm_error_support to properly +// ******************************************************************** +// 2/02/00 Initial version +// 4/04/00 Unwind support added +// 8/15/00 Bundle added after call to __libm_error_support to properly // set [the previously overwritten] GR_Parameter_RESULT. -// 02/10/03 Reordered header: .section, .global, .proc, .align // -//******************************************************************** +// ******************************************************************** // // Function: Combined sqrt(x), where // _ // sqrt(x) = |x, for double precision x values // -//******************************************************************** +// ******************************************************************** // // Accuracy: Correctly Rounded // -//******************************************************************** +// ******************************************************************** // // Resources Used: // @@ -69,7 +68,7 @@ // // Predicate Registers: p6, p7, p8 // -//********************************************************************* +// ********************************************************************* // // IEEE Special Conditions: // @@ -79,13 +78,15 @@ // sqrt(+/-0) = +/-0 // sqrt(negative) = QNaN and error handling is called // -//********************************************************************* +// ********************************************************************* // // Implementation: // // Modified Newton-Raphson Algorithm // -//********************************************************************* +// ********************************************************************* + +#include "libm_support.h" GR_SAVE_PFS = r33 GR_SAVE_B0 = r34 @@ -97,7 +98,19 @@ GR_Parameter_RESULT = r39 .section .text -GLOBAL_IEEE754_ENTRY(sqrt) +.proc sqrt# +.global sqrt# +.align 64 + +sqrt: +#ifdef _LIBC +.global __sqrt +.type __sqrt,@function +__sqrt: +.global __ieee754_sqrt +.type __ieee754_sqrt,@function +__ieee754_sqrt: +#endif { .mfi alloc r32= ar.pfs,0,5,4,0 frsqrta.s0 f7,p6=f8 @@ -242,7 +255,7 @@ GLOBAL_IEEE754_ENTRY(sqrt) { .mfb nop.m 0 - mov f8 = f7 + (p0) mov f8 = f7 (p8) br.ret.sptk b0 ;; } { .mfb @@ -251,7 +264,13 @@ GLOBAL_IEEE754_ENTRY(sqrt) (p7) br.cond.sptk __libm_error_region ;; } // END DOUBLE PRECISION MINIMUM LATENCY SQUARE ROOT ALGORITHM -GLOBAL_IEEE754_END(sqrt) +.endp sqrt# +ASM_SIZE_DIRECTIVE(sqrt) +#ifdef _LIBC +ASM_SIZE_DIRECTIVE(__sqrt) +ASM_SIZE_DIRECTIVE(__ieee754_sqrt) +#endif + // Stack operations when calling error support. // (1) (2) (3) (call) (4) // sp -> + psp -> + psp -> + sp -> + @@ -267,7 +286,8 @@ GLOBAL_IEEE754_END(sqrt) // save gp restore ar.pfs -LOCAL_LIBM_ENTRY(__libm_error_region) +.proc __libm_error_region +__libm_error_region: // // This branch includes all those special values that are not negative, @@ -332,9 +352,8 @@ 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 |