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author | Palmer Dabbelt <palmer@dabbelt.com> | 2018-07-11 01:31:05 -0700 |
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committer | GitHub <noreply@github.com> | 2018-07-11 01:31:05 -0700 |
commit | 537ae11ae506b6fa6c4dd9dc37c9cc818af84027 (patch) | |
tree | 392295f5f2f696eb647189eab939bdf45cbc7ab1 /softfloat/f64_eq.c | |
parent | 63241292c9f4aa0e36d6f5482b6e378a48256002 (diff) | |
parent | 5cd8d2b93fad2011fdf8f49a263d77697af35b32 (diff) | |
download | riscv-pk-537ae11ae506b6fa6c4dd9dc37c9cc818af84027.zip riscv-pk-537ae11ae506b6fa6c4dd9dc37c9cc818af84027.tar.gz riscv-pk-537ae11ae506b6fa6c4dd9dc37c9cc818af84027.tar.bz2 |
Merge pull request #113 from riscv/license
Upgrade SoftFloat
Diffstat (limited to 'softfloat/f64_eq.c')
-rw-r--r--[-rwxr-xr-x] | softfloat/f64_eq.c | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/softfloat/f64_eq.c b/softfloat/f64_eq.c index 3b99036..e075c02 100755..100644 --- a/softfloat/f64_eq.c +++ b/softfloat/f64_eq.c @@ -1,5 +1,38 @@ -// See LICENSE.SoftFloat for license details. +/*============================================================================ + +This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic +Package, Release 3e, by John R. Hauser. + +Copyright 2011, 2012, 2013, 2014 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> @@ -19,10 +52,7 @@ bool f64_eq( float64_t a, float64_t b ) uiA = uA.ui; uB.f = b; uiB = uB.ui; - if ( - ( ( expF64UI( uiA ) == 0x7FF ) && fracF64UI( uiA ) ) - || ( ( expF64UI( uiB ) == 0x7FF ) && fracF64UI( uiB ) ) - ) { + if ( isNaNF64UI( uiA ) || isNaNF64UI( uiB ) ) { if ( softfloat_isSigNaNF64UI( uiA ) || softfloat_isSigNaNF64UI( uiB ) ) { @@ -30,8 +60,7 @@ bool f64_eq( float64_t a, float64_t b ) } return false; } - return - ( uiA == uiB ) || ! ( ( uiA | uiB ) & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ); + return (uiA == uiB) || ! ((uiA | uiB) & UINT64_C( 0x7FFFFFFFFFFFFFFF )); } |