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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:49:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:49:04 +0000
commit16f504a9dca3fe3b70568f67b7d41241ae485288 (patch)
treec60f36ada0496ba928b7161059ba5ab1ab224f9d /src/libs/softfloat-3e/testfloat/source/verCases_inline.c
parentInitial commit. (diff)
downloadvirtualbox-16f504a9dca3fe3b70568f67b7d41241ae485288.tar.xz
virtualbox-16f504a9dca3fe3b70568f67b7d41241ae485288.zip
Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libs/softfloat-3e/testfloat/source/verCases_inline.c')
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1 files changed, 138 insertions, 0 deletions
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+
+/*============================================================================
+
+This C header file is part of TestFloat, Release 3e, a package of programs for
+testing the correctness of floating-point arithmetic complying with the IEEE
+Standard for Floating-Point, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
+University of California. All rights reserved.
+
+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.
+
+ 3. Neither the name of the University nor the names of its contributors may
+ be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "uint128.h"
+#include "softfloat.h"
+
+#ifdef FLOAT16
+
+bool f16_same( float16_t a, float16_t b )
+{
+ union { uint16_t ui; float16_t f; } uA, uB;
+ uA.f = a;
+ uB.f = b;
+ return (uA.ui == uB.ui);
+}
+
+bool f16_isNaN( float16_t a )
+{
+ union { uint16_t ui; float16_t f; } uA;
+ uA.f = a;
+ return 0x7C00 < (uA.ui & 0x7FFF);
+}
+
+#endif
+
+bool f32_same( float32_t a, float32_t b )
+{
+ union { uint32_t ui; float32_t f; } uA, uB;
+ uA.f = a;
+ uB.f = b;
+ return (uA.ui == uB.ui);
+}
+
+bool f32_isNaN( float32_t a )
+{
+ union { uint32_t ui; float32_t f; } uA;
+ uA.f = a;
+ return 0x7F800000 < (uA.ui & 0x7FFFFFFF);
+}
+
+#ifdef FLOAT64
+
+bool f64_same( float64_t a, float64_t b )
+{
+ union { uint64_t ui; float64_t f; } uA, uB;
+ uA.f = a;
+ uB.f = b;
+ return (uA.ui == uB.ui);
+}
+
+bool f64_isNaN( float64_t a )
+{
+ union { uint64_t ui; float64_t f; } uA;
+ uA.f = a;
+ return
+ UINT64_C( 0x7FF0000000000000 )
+ < (uA.ui & UINT64_C( 0x7FFFFFFFFFFFFFFF ));
+}
+
+#endif
+
+#ifdef EXTFLOAT80
+
+bool extF80M_same( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
+{
+ const struct extFloat80M *aSPtr = (const struct extFloat80M *) aPtr;
+ const struct extFloat80M *bSPtr = (const struct extFloat80M *) bPtr;
+ return
+ (aSPtr->signExp == bSPtr->signExp) && (aSPtr->signif == bSPtr->signif);
+}
+
+bool extF80M_isNaN( const extFloat80_t *aPtr )
+{
+ const struct extFloat80M *aSPtr = (const struct extFloat80M *) aPtr;
+ return
+ ((aSPtr->signExp & 0x7FFF) == 0x7FFF)
+ && (aSPtr->signif & UINT64_C( 0x7FFFFFFFFFFFFFFF ));
+}
+
+#endif
+
+#ifdef FLOAT128
+
+bool f128M_same( const float128_t *aPtr, const float128_t *bPtr )
+{
+ const struct uint128 *uiAPtr = (const struct uint128 *) aPtr;
+ const struct uint128 *uiBPtr = (const struct uint128 *) bPtr;
+ return (uiAPtr->v64 == uiBPtr->v64) && (uiAPtr->v0 == uiBPtr->v0);
+}
+
+bool f128M_isNaN( const float128_t *aPtr )
+{
+ const struct uint128 *uiAPtr = (const struct uint128 *) aPtr;
+ uint_fast64_t absA64 = uiAPtr->v64 & UINT64_C( 0x7FFFFFFFFFFFFFFF );
+ return
+ (UINT64_C( 0x7FFF000000000000 ) < absA64)
+ || ((absA64 == UINT64_C( 0x7FFF000000000000 )) && uiAPtr->v0);
+}
+
+#endif
+