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+
+/*============================================================================
+
+This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3e, by John R. Hauser.
+
+Copyright 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.
+
+=============================================================================*/
+
+#ifndef opts_GCC_h
+#define opts_GCC_h 1
+
+#ifdef INLINE
+
+#include <stdint.h>
+#include "primitiveTypes.h"
+
+#ifdef SOFTFLOAT_BUILTIN_CLZ
+
+INLINE uint_fast8_t softfloat_countLeadingZeros16( uint16_t a )
+ { return a ? __builtin_clz( a ) - 16 : 16; }
+#define softfloat_countLeadingZeros16 softfloat_countLeadingZeros16
+
+INLINE uint_fast8_t softfloat_countLeadingZeros32( uint32_t a )
+ { return a ? __builtin_clz( a ) : 32; }
+#define softfloat_countLeadingZeros32 softfloat_countLeadingZeros32
+
+INLINE uint_fast8_t softfloat_countLeadingZeros64( uint64_t a )
+ { return a ? __builtin_clzll( a ) : 64; }
+#define softfloat_countLeadingZeros64 softfloat_countLeadingZeros64
+
+#endif
+
+#ifdef SOFTFLOAT_INTRINSIC_INT128
+
+#include <iprt/cdefs.h> /* VBox: shut up pedantic warnings */
+RT_GCC_EXTENSION typedef unsigned __int128 softfloat_int128_t;
+
+INLINE struct uint128 softfloat_mul64ByShifted32To128( uint64_t a, uint32_t b )
+{
+ union { softfloat_int128_t ui; struct uint128 s; } uZ;
+ uZ.ui = (softfloat_int128_t) a * ((uint_fast64_t) b<<32);
+ return uZ.s;
+}
+#define softfloat_mul64ByShifted32To128 softfloat_mul64ByShifted32To128
+
+INLINE struct uint128 softfloat_mul64To128( uint64_t a, uint64_t b )
+{
+ union { softfloat_int128_t ui; struct uint128 s; } uZ;
+ uZ.ui = (softfloat_int128_t) a * b;
+ return uZ.s;
+}
+#define softfloat_mul64To128 softfloat_mul64To128
+
+INLINE
+struct uint128 softfloat_mul128By32( uint64_t a64, uint64_t a0, uint32_t b )
+{
+ union { softfloat_int128_t ui; struct uint128 s; } uZ;
+ uZ.ui = ((softfloat_int128_t) a64<<64 | a0) * b;
+ return uZ.s;
+}
+#define softfloat_mul128By32 softfloat_mul128By32
+
+INLINE
+void
+ softfloat_mul128To256M(
+ uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0, uint64_t *zPtr )
+{
+ softfloat_int128_t z0, mid1, mid, z128;
+ z0 = (softfloat_int128_t) a0 * b0;
+ mid1 = (softfloat_int128_t) a64 * b0;
+ mid = mid1 + (softfloat_int128_t) a0 * b64;
+ z128 = (softfloat_int128_t) a64 * b64;
+ z128 += (softfloat_int128_t) (mid < mid1)<<64 | mid>>64;
+ mid <<= 64;
+ z0 += mid;
+ z128 += (z0 < mid);
+ zPtr[indexWord( 4, 0 )] = z0;
+ zPtr[indexWord( 4, 1 )] = z0>>64;
+ zPtr[indexWord( 4, 2 )] = z128;
+ zPtr[indexWord( 4, 3 )] = z128>>64;
+}
+#define softfloat_mul128To256M softfloat_mul128To256M
+
+#endif
+
+#endif
+
+#endif
+