/* * Copyright (C) 2007 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA *//* * This file is originally a part of the GCC testsuite. * Check that certain subnormal numbers (formerly known as denormalized * numbers) are rounded to within 0.5 ulp.  PR other/14354. */#include <common.h>#include <post.h>#if CONFIG_POST & CONFIG_SYS_POST_FPUGNU_FPOST_ATTRunion uf{	unsigned int u;	float f;};static floatu2f (unsigned int v){	union uf u;	u.u = v;	return u.f;}static unsigned intf2u (float v){	union uf u;	u.f = v;	return u.u;}static int ok = 1;static voidtstmul (unsigned int ux, unsigned int uy, unsigned int ur){	float x = u2f (ux);	float y = u2f (uy);	if (f2u (x * y) != ur)	/* Set a variable rather than aborting here, to simplify tracing when	   several computations are wrong.  */		ok = 0;}/* We don't want to make this const and static, or else we risk inlining   causing the test to fold as constants at compile-time.  */struct{  unsigned int p1, p2, res;} static volatile expected[] ={	{0xfff, 0x3f800400, 0xfff},	{0xf, 0x3fc88888, 0x17},	{0xf, 0x3f844444, 0xf}};int fpu_post_test_math7 (void){	unsigned int i;	for (i = 0; i < sizeof (expected) / sizeof (expected[0]); i++)	{		tstmul (expected[i].p1, expected[i].p2, expected[i].res);		tstmul (expected[i].p2, expected[i].p1, expected[i].res);	}	if (!ok) {		post_log ("Error in FPU math7 test\n");		return -1;	}	return 0;}#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */