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-rw-r--r--src/libs/softfloat-3e/testfloat/source/genCases_f16.c585
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diff --git a/src/libs/softfloat-3e/testfloat/source/genCases_f16.c b/src/libs/softfloat-3e/testfloat/source/genCases_f16.c
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+
+/*============================================================================
+
+This C source 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 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 "random.h"
+#include "softfloat.h"
+#include "genCases.h"
+
+#ifdef FLOAT16
+
+struct sequence {
+ int expNum, term1Num, term2Num;
+ bool done;
+};
+
+union ui16_f16 { uint16_t ui; float16_t f; };
+
+enum {
+ f16NumQIn = 22,
+ f16NumQOut = 34,
+ f16NumP1 = 4,
+ f16NumP2 = 36
+};
+static const uint16_t f16QIn[f16NumQIn] = {
+ 0x0000, /* positive, subnormal */
+ 0x0400, /* positive, -14 */
+ 0x1000, /* positive, -11 */
+ 0x3400, /* positive, -2 */
+ 0x3800, /* positive, -1 */
+ 0x3C00, /* positive, 0 */
+ 0x4000, /* positive, 1 */
+ 0x4400, /* positive, 2 */
+ 0x6800, /* positive, 11 */
+ 0x7800, /* positive, 15 */
+ 0x7C00, /* positive, infinity or NaN */
+ 0x8000, /* negative, subnormal */
+ 0x8400, /* negative, -14 */
+ 0x9000, /* negative, -11 */
+ 0xB400, /* negative, -2 */
+ 0xB800, /* negative, -1 */
+ 0xBC00, /* negative, 0 */
+ 0xC000, /* negative, 1 */
+ 0xC400, /* negative, 2 */
+ 0xE800, /* negative, 11 */
+ 0xF800, /* negative, 15 */
+ 0xFC00 /* negative, infinity or NaN */
+};
+static const uint16_t f16QOut[f16NumQOut] = {
+ 0x0000, /* positive, subnormal */
+ 0x0400, /* positive, -14 */
+ 0x0800, /* positive, -13 */
+ 0x1000, /* positive, -11 */
+ 0x2C00, /* positive, -4 */
+ 0x3000, /* positive, -3 */
+ 0x3400, /* positive, -2 */
+ 0x3800, /* positive, -1 */
+ 0x3C00, /* positive, 0 */
+ 0x4000, /* positive, 1 */
+ 0x4400, /* positive, 2 */
+ 0x4800, /* positive, 3 */
+ 0x4C00, /* positive, 4 */
+ 0x6800, /* positive, 11 */
+ 0x7400, /* positive, 14 */
+ 0x7800, /* positive, 15 */
+ 0x7C00, /* positive, infinity or NaN */
+ 0x8000, /* negative, subnormal */
+ 0x8400, /* negative, -14 */
+ 0x8800, /* negative, -13 */
+ 0x9000, /* negative, -11 */
+ 0xAC00, /* negative, -4 */
+ 0xB000, /* negative, -3 */
+ 0xB400, /* negative, -2 */
+ 0xB800, /* negative, -1 */
+ 0xBC00, /* negative, 0 */
+ 0xC000, /* negative, 1 */
+ 0xC400, /* negative, 2 */
+ 0xC800, /* negative, 3 */
+ 0xCC00, /* negative, 4 */
+ 0xE800, /* negative, 11 */
+ 0xF400, /* negative, 14 */
+ 0xF800, /* negative, 15 */
+ 0xFC00 /* negative, infinity or NaN */
+};
+static const uint16_t f16P1[f16NumP1] = {
+ 0x0000,
+ 0x0001,
+ 0x03FF,
+ 0x03FE
+};
+static const uint16_t f16P2[f16NumP2] = {
+ 0x0000,
+ 0x0001,
+ 0x0002,
+ 0x0004,
+ 0x0008,
+ 0x0010,
+ 0x0020,
+ 0x0040,
+ 0x0080,
+ 0x0100,
+ 0x0200,
+ 0x0300,
+ 0x0380,
+ 0x03C0,
+ 0x03E0,
+ 0x03F0,
+ 0x03F8,
+ 0x03FC,
+ 0x03FE,
+ 0x03FF,
+ 0x03FD,
+ 0x03FB,
+ 0x03F7,
+ 0x03EF,
+ 0x03DF,
+ 0x03BF,
+ 0x037F,
+ 0x02FF,
+ 0x01FF,
+ 0x00FF,
+ 0x007F,
+ 0x003F,
+ 0x001F,
+ 0x000F,
+ 0x0007,
+ 0x0003
+};
+
+static const uint_fast64_t f16NumQInP1 = f16NumQIn * f16NumP1;
+static const uint_fast64_t f16NumQOutP1 = f16NumQOut * f16NumP1;
+
+static float16_t f16NextQInP1( struct sequence *sequencePtr )
+{
+ int expNum, sigNum;
+ union ui16_f16 uZ;
+
+ expNum = sequencePtr->expNum;
+ sigNum = sequencePtr->term1Num;
+ uZ.ui = f16QIn[expNum] | f16P1[sigNum];
+ ++sigNum;
+ if ( f16NumP1 <= sigNum ) {
+ sigNum = 0;
+ ++expNum;
+ if ( f16NumQIn <= expNum ) {
+ expNum = 0;
+ sequencePtr->done = true;
+ }
+ sequencePtr->expNum = expNum;
+ }
+ sequencePtr->term1Num = sigNum;
+ return uZ.f;
+
+}
+
+static float16_t f16NextQOutP1( struct sequence *sequencePtr )
+{
+ int expNum, sigNum;
+ union ui16_f16 uZ;
+
+ expNum = sequencePtr->expNum;
+ sigNum = sequencePtr->term1Num;
+ uZ.ui = f16QOut[expNum] | f16P1[sigNum];
+ ++sigNum;
+ if ( f16NumP1 <= sigNum ) {
+ sigNum = 0;
+ ++expNum;
+ if ( f16NumQOut <= expNum ) {
+ expNum = 0;
+ sequencePtr->done = true;
+ }
+ sequencePtr->expNum = expNum;
+ }
+ sequencePtr->term1Num = sigNum;
+ return uZ.f;
+
+}
+
+static const uint_fast64_t f16NumQInP2 = f16NumQIn * f16NumP2;
+static const uint_fast64_t f16NumQOutP2 = f16NumQOut * f16NumP2;
+
+static float16_t f16NextQInP2( struct sequence *sequencePtr )
+{
+ int expNum, sigNum;
+ union ui16_f16 uZ;
+
+ expNum = sequencePtr->expNum;
+ sigNum = sequencePtr->term1Num;
+ uZ.ui = f16QIn[expNum] | f16P2[sigNum];
+ ++sigNum;
+ if ( f16NumP2 <= sigNum ) {
+ sigNum = 0;
+ ++expNum;
+ if ( f16NumQIn <= expNum ) {
+ expNum = 0;
+ sequencePtr->done = true;
+ }
+ sequencePtr->expNum = expNum;
+ }
+ sequencePtr->term1Num = sigNum;
+ return uZ.f;
+
+}
+
+static float16_t f16NextQOutP2( struct sequence *sequencePtr )
+{
+ int expNum, sigNum;
+ union ui16_f16 uZ;
+
+ expNum = sequencePtr->expNum;
+ sigNum = sequencePtr->term1Num;
+ uZ.ui = f16QOut[expNum] | f16P2[sigNum];
+ ++sigNum;
+ if ( f16NumP2 <= sigNum ) {
+ sigNum = 0;
+ ++expNum;
+ if ( f16NumQOut <= expNum ) {
+ expNum = 0;
+ sequencePtr->done = true;
+ }
+ sequencePtr->expNum = expNum;
+ }
+ sequencePtr->term1Num = sigNum;
+ return uZ.f;
+
+}
+
+static float16_t f16RandomQOutP3( void )
+{
+ union ui16_f16 uZ;
+
+ uZ.ui =
+ f16QOut[randomN_ui8( f16NumQOut )]
+ | ((f16P2[randomN_ui8( f16NumP2 )] + f16P2[randomN_ui8( f16NumP2 )])
+ & 0x03FF);
+ return uZ.f;
+
+}
+
+static float16_t f16RandomQOutPInf( void )
+{
+ union ui16_f16 uZ;
+
+ uZ.ui = f16QOut[randomN_ui8( f16NumQOut )] | (random_ui16() & 0x03FF);
+ return uZ.f;
+
+}
+
+enum { f16NumQInfWeightMasks = 4 };
+static const uint16_t f16QInfWeightMasks[f16NumQInfWeightMasks] =
+ { 0xFC00, 0xFC00, 0xBC00, 0x9C00 };
+static const uint16_t f16QInfWeightOffsets[f16NumQInfWeightMasks] =
+ { 0x0000, 0x0000, 0x2000, 0x3000 };
+
+static float16_t f16RandomQInfP3( void )
+{
+ int weightMaskNum;
+ union ui16_f16 uZ;
+
+ weightMaskNum = randomN_ui8( f16NumQInfWeightMasks );
+ uZ.ui =
+ ((random_ui16() & f16QInfWeightMasks[weightMaskNum])
+ + f16QInfWeightOffsets[weightMaskNum])
+ | ((f16P2[randomN_ui8( f16NumP2 )] + f16P2[randomN_ui8( f16NumP2 )])
+ & 0x03FF);
+ return uZ.f;
+
+}
+
+static float16_t f16RandomQInfPInf( void )
+{
+ int weightMaskNum;
+ union ui16_f16 uZ;
+
+ weightMaskNum = randomN_ui8( f16NumQInfWeightMasks );
+ uZ.ui =
+ (random_ui16() & (f16QInfWeightMasks[weightMaskNum] | 0x03FF))
+ + f16QInfWeightOffsets[weightMaskNum];
+ return uZ.f;
+
+}
+
+static float16_t f16Random( void )
+{
+
+ switch ( random_ui8() & 7 ) {
+ case 0:
+ case 1:
+ case 2:
+ return f16RandomQOutP3();
+ case 3:
+ return f16RandomQOutPInf();
+ case 4:
+ case 5:
+ case 6:
+ return f16RandomQInfP3();
+ case 7:
+ return f16RandomQInfPInf();
+ }
+
+}
+
+static struct sequence sequenceA, sequenceB, sequenceC;
+static float16_t currentA, currentB, currentC;
+static int subcase;
+
+float16_t genCases_f16_a, genCases_f16_b, genCases_f16_c;
+
+void genCases_f16_a_init( void )
+{
+
+ sequenceA.expNum = 0;
+ sequenceA.term1Num = 0;
+ sequenceA.term2Num = 0;
+ sequenceA.done = false;
+ subcase = 0;
+ genCases_total =
+ (genCases_level == 1) ? 3 * f16NumQOutP1 : 2 * f16NumQOutP2;
+ genCases_done = false;
+
+}
+
+void genCases_f16_a_next( void )
+{
+
+ if ( genCases_level == 1 ) {
+ switch ( subcase ) {
+ case 0:
+ case 1:
+ genCases_f16_a = f16Random();
+ break;
+ case 2:
+ genCases_f16_a = f16NextQOutP1( &sequenceA );
+ genCases_done = sequenceA.done;
+ subcase = -1;
+ break;
+ }
+ } else {
+ switch ( subcase ) {
+ case 0:
+ genCases_f16_a = f16Random();
+ break;
+ case 1:
+ genCases_f16_a = f16NextQOutP2( &sequenceA );
+ genCases_done = sequenceA.done;
+ subcase = -1;
+ break;
+ }
+ }
+ ++subcase;
+
+}
+
+void genCases_f16_ab_init( void )
+{
+
+ sequenceA.expNum = 0;
+ sequenceA.term1Num = 0;
+ sequenceA.term2Num = 0;
+ sequenceA.done = false;
+ sequenceB.expNum = 0;
+ sequenceB.term1Num = 0;
+ sequenceB.term2Num = 0;
+ sequenceB.done = false;
+ subcase = 0;
+ if ( genCases_level == 1 ) {
+ genCases_total = 6 * f16NumQInP1 * f16NumQInP1;
+ currentA = f16NextQInP1( &sequenceA );
+ } else {
+ genCases_total = 2 * f16NumQInP2 * f16NumQInP2;
+ currentA = f16NextQInP2( &sequenceA );
+ }
+ genCases_done = false;
+
+}
+
+void genCases_f16_ab_next( void )
+{
+
+ if ( genCases_level == 1 ) {
+ switch ( subcase ) {
+ case 0:
+ if ( sequenceB.done ) {
+ sequenceB.done = false;
+ currentA = f16NextQInP1( &sequenceA );
+ }
+ currentB = f16NextQInP1( &sequenceB );
+ case 2:
+ case 4:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = f16Random();
+ break;
+ case 1:
+ genCases_f16_a = currentA;
+ genCases_f16_b = f16Random();
+ break;
+ case 3:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = currentB;
+ break;
+ case 5:
+ genCases_f16_a = currentA;
+ genCases_f16_b = currentB;
+ genCases_done = sequenceA.done & sequenceB.done;
+ subcase = -1;
+ break;
+ }
+ } else {
+ switch ( subcase ) {
+ case 0:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = f16Random();
+ break;
+ case 1:
+ if ( sequenceB.done ) {
+ sequenceB.done = false;
+ currentA = f16NextQInP2( &sequenceA );
+ }
+ genCases_f16_a = currentA;
+ genCases_f16_b = f16NextQInP2( &sequenceB );
+ genCases_done = sequenceA.done & sequenceB.done;
+ subcase = -1;
+ break;
+ }
+ }
+ ++subcase;
+
+}
+
+void genCases_f16_abc_init( void )
+{
+
+ sequenceA.expNum = 0;
+ sequenceA.term1Num = 0;
+ sequenceA.term2Num = 0;
+ sequenceA.done = false;
+ sequenceB.expNum = 0;
+ sequenceB.term1Num = 0;
+ sequenceB.term2Num = 0;
+ sequenceB.done = false;
+ sequenceC.expNum = 0;
+ sequenceC.term1Num = 0;
+ sequenceC.term2Num = 0;
+ sequenceC.done = false;
+ subcase = 0;
+ if ( genCases_level == 1 ) {
+ genCases_total = 9 * f16NumQInP1 * f16NumQInP1 * f16NumQInP1;
+ currentA = f16NextQInP1( &sequenceA );
+ currentB = f16NextQInP1( &sequenceB );
+ } else {
+ genCases_total = 2 * f16NumQInP2 * f16NumQInP2 * f16NumQInP2;
+ currentA = f16NextQInP2( &sequenceA );
+ currentB = f16NextQInP2( &sequenceB );
+ }
+ genCases_done = false;
+
+}
+
+void genCases_f16_abc_next( void )
+{
+
+ if ( genCases_level == 1 ) {
+ switch ( subcase ) {
+ case 0:
+ if ( sequenceC.done ) {
+ sequenceC.done = false;
+ if ( sequenceB.done ) {
+ sequenceB.done = false;
+ currentA = f16NextQInP1( &sequenceA );
+ }
+ currentB = f16NextQInP1( &sequenceB );
+ }
+ currentC = f16NextQInP1( &sequenceC );
+ genCases_f16_a = f16Random();
+ genCases_f16_b = f16Random();
+ genCases_f16_c = currentC;
+ break;
+ case 1:
+ genCases_f16_a = currentA;
+ genCases_f16_b = currentB;
+ genCases_f16_c = f16Random();
+ break;
+ case 2:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = f16Random();
+ genCases_f16_c = f16Random();
+ break;
+ case 3:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = currentB;
+ genCases_f16_c = currentC;
+ break;
+ case 4:
+ genCases_f16_a = currentA;
+ genCases_f16_b = f16Random();
+ genCases_f16_c = f16Random();
+ break;
+ case 5:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = currentB;
+ genCases_f16_c = f16Random();
+ break;
+ case 6:
+ genCases_f16_a = currentA;
+ genCases_f16_b = f16Random();
+ genCases_f16_c = currentC;
+ break;
+ case 7:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = f16Random();
+ genCases_f16_c = f16Random();
+ break;
+ case 8:
+ genCases_f16_a = currentA;
+ genCases_f16_b = currentB;
+ genCases_f16_c = currentC;
+ genCases_done = sequenceA.done & sequenceB.done & sequenceC.done;
+ subcase = -1;
+ break;
+ }
+ } else {
+ switch ( subcase ) {
+ case 0:
+ genCases_f16_a = f16Random();
+ genCases_f16_b = f16Random();
+ genCases_f16_c = f16Random();
+ break;
+ case 1:
+ if ( sequenceC.done ) {
+ sequenceC.done = false;
+ if ( sequenceB.done ) {
+ sequenceB.done = false;
+ currentA = f16NextQInP2( &sequenceA );
+ }
+ currentB = f16NextQInP2( &sequenceB );
+ }
+ genCases_f16_a = currentA;
+ genCases_f16_b = currentB;
+ genCases_f16_c = f16NextQInP2( &sequenceC );
+ genCases_done = sequenceA.done & sequenceB.done & sequenceC.done;
+ subcase = -1;
+ break;
+ }
+ }
+ ++subcase;
+
+}
+
+#endif
+
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