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authorAndrew Waterman <andrew@sifive.com>2018-07-11 01:16:28 -0700
committerAndrew Waterman <andrew@sifive.com>2018-07-11 01:16:28 -0700
commit5cd8d2b93fad2011fdf8f49a263d77697af35b32 (patch)
treef6fb9cb6d3bef2aa5c9903511b92e5a6e99e9519 /softfloat/f32_eq_signaling.c
parent8e69141749065ff957383d2112768f95a33429b6 (diff)
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Upgrade to SoftFloat 3e
Diffstat (limited to 'softfloat/f32_eq_signaling.c')
-rw-r--r--[-rwxr-xr-x]softfloat/f32_eq_signaling.c42
1 files changed, 36 insertions, 6 deletions
diff --git a/softfloat/f32_eq_signaling.c b/softfloat/f32_eq_signaling.c
index 38d892f..03395f3 100755..100644
--- a/softfloat/f32_eq_signaling.c
+++ b/softfloat/f32_eq_signaling.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>
@@ -18,14 +51,11 @@ bool f32_eq_signaling( 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 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
- return ( uiA == uiB ) || ! (uint32_t) ( ( uiA | uiB )<<1 );
+ return (uiA == uiB) || ! (uint32_t) ((uiA | uiB)<<1);
}