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author | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-03-01 16:24:05 -0800 |
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committer | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-03-01 16:24:44 -0800 |
commit | a95b44df9d142a49f3e1bfe4a60d259ed41ca247 (patch) | |
tree | 49f59c903609e5b0de05d5b0c7f7bd23de8c4f13 /softfloat/f32_eq.c | |
parent | bea283531abfd013811e83c75ff6189a0d9b3075 (diff) | |
download | spike-a95b44df9d142a49f3e1bfe4a60d259ed41ca247.zip spike-a95b44df9d142a49f3e1bfe4a60d259ed41ca247.tar.gz spike-a95b44df9d142a49f3e1bfe4a60d259ed41ca247.tar.bz2 |
Upgrade to latest SoftFloat
Diffstat (limited to 'softfloat/f32_eq.c')
-rw-r--r--[-rwxr-xr-x] | softfloat/f32_eq.c | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/softfloat/f32_eq.c b/softfloat/f32_eq.c index 8f2306b..ee0918f 100755..100644 --- a/softfloat/f32_eq.c +++ b/softfloat/f32_eq.c @@ -1,4 +1,39 @@ +/*============================================================================ + +This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic +Package, Release 3a, 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> #include "platform.h" @@ -17,10 +52,7 @@ bool f32_eq( float32_t a, float32_t b ) uiA = uA.ui; uB.f = b; uiB = uB.ui; - if ( - ( ( expF32UI( uiA ) == 0xFF ) && fracF32UI( uiA ) ) - || ( ( expF32UI( uiB ) == 0xFF ) && fracF32UI( uiB ) ) - ) { + if ( isNaNF32UI( uiA ) || isNaNF32UI( uiB ) ) { if ( softfloat_isSigNaNF32UI( uiA ) || softfloat_isSigNaNF32UI( uiB ) ) { @@ -28,7 +60,7 @@ bool f32_eq( float32_t a, float32_t b ) } return false; } - return ( uiA == uiB ) || ! (uint32_t) ( ( uiA | uiB )<<1 ); + return (uiA == uiB) || ! (uint32_t) ((uiA | uiB)<<1); } |