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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
86 lines
1.5 KiB
C
86 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2007
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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/*
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* This file is originally a part of the GCC testsuite.
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* Check that certain subnormal numbers (formerly known as denormalized
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* numbers) are rounded to within 0.5 ulp. PR other/14354.
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*/
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#include <common.h>
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#include <post.h>
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GNU_FPOST_ATTR
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#if CFG_POST & CFG_SYS_POST_FPU
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union uf
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{
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unsigned int u;
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float f;
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};
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static float
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u2f (unsigned int v)
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{
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union uf u;
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u.u = v;
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return u.f;
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}
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static unsigned int
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f2u (float v)
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{
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union uf u;
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u.f = v;
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return u.u;
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}
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static int ok = 1;
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static void
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tstmul (unsigned int ux, unsigned int uy, unsigned int ur)
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{
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float x = u2f (ux);
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float y = u2f (uy);
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if (f2u (x * y) != ur)
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/* Set a variable rather than aborting here, to simplify tracing when
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several computations are wrong. */
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ok = 0;
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}
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/* We don't want to make this const and static, or else we risk inlining
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causing the test to fold as constants at compile-time. */
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struct
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{
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unsigned int p1, p2, res;
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} static volatile expected[] =
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{
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{0xfff, 0x3f800400, 0xfff},
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{0xf, 0x3fc88888, 0x17},
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{0xf, 0x3f844444, 0xf}
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};
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int fpu_post_test_math7 (void)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(expected); i++)
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{
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tstmul (expected[i].p1, expected[i].p2, expected[i].res);
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tstmul (expected[i].p2, expected[i].p1, expected[i].res);
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}
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if (!ok) {
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post_log ("Error in FPU math7 test\n");
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return -1;
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}
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return 0;
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}
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#endif /* CFG_POST & CFG_SYS_POST_FPU */
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