Module Name: src Committed By: matt Date: Sat Jan 26 07:04:23 UTC 2013
Added Files: src/lib/libc/arch/arm/gen: __aeabi_dcmpun.c __aeabi_fcmpun.c Log Message: Add __aeabi_[fd]cmpun for IEEE unordered compares (requires by ARM RTABI). To generate a diff of this commit: cvs rdiff -u -r0 -r1.1 src/lib/libc/arch/arm/gen/__aeabi_dcmpun.c \ src/lib/libc/arch/arm/gen/__aeabi_fcmpun.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Added files: Index: src/lib/libc/arch/arm/gen/__aeabi_dcmpun.c diff -u /dev/null src/lib/libc/arch/arm/gen/__aeabi_dcmpun.c:1.1 --- /dev/null Sat Jan 26 07:04:23 2013 +++ src/lib/libc/arch/arm/gen/__aeabi_dcmpun.c Sat Jan 26 07:04:22 2013 @@ -0,0 +1,54 @@ +/*- + * Copyright (c) 2013 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Matt Thomas of 3am Software Foundry. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +__RCSID("$NetBSD: __aeabi_dcmpun.c,v 1.1 2013/01/26 07:04:22 matt Exp $"); +#endif /* LIBC_SCCS and not lint */ + +#include <arm/aeabi.h> +#include <arm/ieee.h> + +#include <math.h> + +/* + * result (1, 0) denotes (?, <=>) [2], use for C99 isunordered() + */ + +int +__aeabi_dcmpun(double x, double y) +{ + const union ieee_double_u ux = { .dblu_d = x }; + const union ieee_double_u uy = { .dblu_d = y }; + + return (ux.dblu_dbl.dbl_exp == DBL_EXP_INFNAN + && (ux.dblu_dbl.dbl_frach|ux.dblu_dbl.dbl_fracl) != 0) + || (uy.dblu_dbl.dbl_exp == DBL_EXP_INFNAN + && (uy.dblu_dbl.dbl_frach|uy.dblu_dbl.dbl_fracl) != 0); +} Index: src/lib/libc/arch/arm/gen/__aeabi_fcmpun.c diff -u /dev/null src/lib/libc/arch/arm/gen/__aeabi_fcmpun.c:1.1 --- /dev/null Sat Jan 26 07:04:23 2013 +++ src/lib/libc/arch/arm/gen/__aeabi_fcmpun.c Sat Jan 26 07:04:22 2013 @@ -0,0 +1,54 @@ +/*- + * Copyright (c) 2013 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Matt Thomas of 3am Software Foundry. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +__RCSID("$NetBSD: __aeabi_fcmpun.c,v 1.1 2013/01/26 07:04:22 matt Exp $"); +#endif /* LIBC_SCCS and not lint */ + +#include <arm/aeabi.h> +#include <arm/ieee.h> + +#include <math.h> + +/* + * result (1, 0) denotes (?, <=>) [2], use for C99 isunordered() + */ + +int +__aeabi_fcmpun(float x, float y) +{ + const union ieee_single_u ux = { .sngu_f = x }; + const union ieee_single_u uy = { .sngu_f = y }; + + return (ux.sngu_sng.sng_exp == SNG_EXP_INFNAN + && ux.sngu_sng.sng_frac != 0) + || (uy.sngu_sng.sng_exp == SNG_EXP_INFNAN + && uy.sngu_sng.sng_frac != 0); +}