Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 256 insertions, 0 deletions

diff --git a/tests/fp/berkeley-softfloat-3/source/s_roundPackToExtF80.c b/tests/fp/berkeley-softfloat-3/source/s_roundPackToExtF80.c
new file mode 100644
index 000000000..a5ea38c60
--- /dev/null
+++ b/tests/fp/berkeley-softfloat-3/source/s_roundPackToExtF80.c
@@ -0,0 +1,256 @@
+
+/*============================================================================
+
+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, 2015, 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.
+
+=============================================================================*/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "softfloat.h"
+
+extFloat80_t
+ softfloat_roundPackToExtF80(
+     bool sign,
+     int_fast32_t exp,
+     uint_fast64_t sig,
+     uint_fast64_t sigExtra,
+     uint_fast8_t roundingPrecision
+ )
+{
+    uint_fast8_t roundingMode;
+    bool roundNearEven;
+    uint_fast64_t roundIncrement, roundMask, roundBits;
+    bool isTiny, doIncrement;
+    struct uint64_extra sig64Extra;
+    union { struct extFloat80M s; extFloat80_t f; } uZ;
+
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    roundingMode = softfloat_roundingMode;
+    roundNearEven = (roundingMode == softfloat_round_near_even);
+    if ( roundingPrecision == 80 ) goto precision80;
+    if ( roundingPrecision == 64 ) {
+        roundIncrement = UINT64_C( 0x0000000000000400 );
+        roundMask = UINT64_C( 0x00000000000007FF );
+    } else if ( roundingPrecision == 32 ) {
+        roundIncrement = UINT64_C( 0x0000008000000000 );
+        roundMask = UINT64_C( 0x000000FFFFFFFFFF );
+    } else {
+        goto precision80;
+    }
+    sig |= (sigExtra != 0);
+    if ( ! roundNearEven && (roundingMode != softfloat_round_near_maxMag) ) {
+        roundIncrement =
+            (roundingMode
+                 == (sign ? softfloat_round_min : softfloat_round_max))
+                ? roundMask
+                : 0;
+    }
+    roundBits = sig & roundMask;
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( 0x7FFD <= (uint32_t) (exp - 1) ) {
+        if ( exp <= 0 ) {
+            /*----------------------------------------------------------------
+            *----------------------------------------------------------------*/
+            isTiny =
+                   (softfloat_detectTininess
+                        == softfloat_tininess_beforeRounding)
+                || (exp < 0)
+                || (sig <= (uint64_t) (sig + roundIncrement));
+            sig = softfloat_shiftRightJam64( sig, 1 - exp );
+            roundBits = sig & roundMask;
+            if ( roundBits ) {
+                if ( isTiny ) softfloat_raiseFlags( softfloat_flag_underflow );
+                softfloat_exceptionFlags |= softfloat_flag_inexact;
+#ifdef SOFTFLOAT_ROUND_ODD
+                if ( roundingMode == softfloat_round_odd ) {
+                    sig |= roundMask + 1;
+                }
+#endif
+            }
+            sig += roundIncrement;
+            exp = ((sig & UINT64_C( 0x8000000000000000 )) != 0);
+            roundIncrement = roundMask + 1;
+            if ( roundNearEven && (roundBits<<1 == roundIncrement) ) {
+                roundMask |= roundIncrement;
+            }
+            sig &= ~roundMask;
+            goto packReturn;
+        }
+        if (
+               (0x7FFE < exp)
+            || ((exp == 0x7FFE) && ((uint64_t) (sig + roundIncrement) < sig))
+        ) {
+            goto overflow;
+        }
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( roundBits ) {
+        softfloat_exceptionFlags |= softfloat_flag_inexact;
+#ifdef SOFTFLOAT_ROUND_ODD
+        if ( roundingMode == softfloat_round_odd ) {
+            sig = (sig & ~roundMask) | (roundMask + 1);
+            goto packReturn;
+        }
+#endif
+    }
+    sig = (uint64_t) (sig + roundIncrement);
+    if ( sig < roundIncrement ) {
+        ++exp;
+        sig = UINT64_C( 0x8000000000000000 );
+    }
+    roundIncrement = roundMask + 1;
+    if ( roundNearEven && (roundBits<<1 == roundIncrement) ) {
+        roundMask |= roundIncrement;
+    }
+    sig &= ~roundMask;
+    goto packReturn;
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+ precision80:
+    doIncrement = (UINT64_C( 0x8000000000000000 ) <= sigExtra);
+    if ( ! roundNearEven && (roundingMode != softfloat_round_near_maxMag) ) {
+        doIncrement =
+            (roundingMode
+                 == (sign ? softfloat_round_min : softfloat_round_max))
+                && sigExtra;
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( 0x7FFD <= (uint32_t) (exp - 1) ) {
+        if ( exp <= 0 ) {
+            /*----------------------------------------------------------------
+            *----------------------------------------------------------------*/
+            isTiny =
+                   (softfloat_detectTininess
+                        == softfloat_tininess_beforeRounding)
+                || (exp < 0)
+                || ! doIncrement
+                || (sig < UINT64_C( 0xFFFFFFFFFFFFFFFF ));
+            sig64Extra =
+                softfloat_shiftRightJam64Extra( sig, sigExtra, 1 - exp );
+            exp = 0;
+            sig = sig64Extra.v;
+            sigExtra = sig64Extra.extra;
+            if ( sigExtra ) {
+                if ( isTiny ) softfloat_raiseFlags( softfloat_flag_underflow );
+                softfloat_exceptionFlags |= softfloat_flag_inexact;
+#ifdef SOFTFLOAT_ROUND_ODD
+                if ( roundingMode == softfloat_round_odd ) {
+                    sig |= 1;
+                    goto packReturn;
+                }
+#endif
+            }
+            doIncrement = (UINT64_C( 0x8000000000000000 ) <= sigExtra);
+            if (
+                ! roundNearEven
+                    && (roundingMode != softfloat_round_near_maxMag)
+            ) {
+                doIncrement =
+                    (roundingMode
+                         == (sign ? softfloat_round_min : softfloat_round_max))
+                        && sigExtra;
+            }
+            if ( doIncrement ) {
+                ++sig;
+                sig &=
+                    ~(uint_fast64_t)
+                         (! (sigExtra & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
+                              & roundNearEven);
+                exp = ((sig & UINT64_C( 0x8000000000000000 )) != 0);
+            }
+            goto packReturn;
+        }
+        if (
+               (0x7FFE < exp)
+            || ((exp == 0x7FFE) && (sig == UINT64_C( 0xFFFFFFFFFFFFFFFF ))
+                    && doIncrement)
+        ) {
+            /*----------------------------------------------------------------
+            *----------------------------------------------------------------*/
+            roundMask = 0;
+ overflow:
+            softfloat_raiseFlags(
+                softfloat_flag_overflow | softfloat_flag_inexact );
+            if (
+                   roundNearEven
+                || (roundingMode == softfloat_round_near_maxMag)
+                || (roundingMode
+                        == (sign ? softfloat_round_min : softfloat_round_max))
+            ) {
+                exp = 0x7FFF;
+                sig = UINT64_C( 0x8000000000000000 );
+            } else {
+                exp = 0x7FFE;
+                sig = ~roundMask;
+            }
+            goto packReturn;
+        }
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( sigExtra ) {
+        softfloat_exceptionFlags |= softfloat_flag_inexact;
+#ifdef SOFTFLOAT_ROUND_ODD
+        if ( roundingMode == softfloat_round_odd ) {
+            sig |= 1;
+            goto packReturn;
+        }
+#endif
+    }
+    if ( doIncrement ) {
+        ++sig;
+        if ( ! sig ) {
+            ++exp;
+            sig = UINT64_C( 0x8000000000000000 );
+        } else {
+            sig &=
+                ~(uint_fast64_t)
+                     (! (sigExtra & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
+                          & roundNearEven);
+        }
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+ packReturn:
+    uZ.s.signExp = packToExtF80UI64( sign, exp );
+    uZ.s.signif = sig;
+    return uZ.f;
+
+}
+