Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 179 insertions, 0 deletions

diff --git a/src/libs/softfloat-3e/source/s_roundPackMToF128M.c b/src/libs/softfloat-3e/source/s_roundPackMToF128M.c
new file mode 100644
index 00000000..adb169c0
--- /dev/null
+++ b/src/libs/softfloat-3e/source/s_roundPackMToF128M.c
@@ -0,0 +1,179 @@
+
+/*============================================================================
+
+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, 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"
+
+void
+ softfloat_roundPackMToF128M(
+     bool sign, int32_t exp, uint32_t *extSigPtr, uint32_t *zWPtr SOFTFLOAT_STATE_DECL_COMMA )
+{
+    uint_fast8_t roundingMode;
+    bool roundNearEven;
+    uint32_t sigExtra;
+    bool doIncrement, isTiny;
+    static const uint32_t maxSig[4] =
+        INIT_UINTM4( 0x0001FFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF );
+    uint32_t ui, uj;
+
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    roundingMode = softfloat_roundingMode;
+    roundNearEven = (roundingMode == softfloat_round_near_even);
+    sigExtra = extSigPtr[indexWordLo( 5 )];
+    doIncrement = (0x80000000 <= sigExtra);
+    if ( ! roundNearEven && (roundingMode != softfloat_round_near_maxMag) ) {
+        doIncrement =
+            (roundingMode
+                 == (sign ? softfloat_round_min : softfloat_round_max))
+                && sigExtra;
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( 0x7FFD <= (uint32_t) exp ) {
+        if ( exp < 0 ) {
+            /*----------------------------------------------------------------
+            *----------------------------------------------------------------*/
+            isTiny =
+                   (softfloat_detectTininess
+                        == softfloat_tininess_beforeRounding)
+                || (exp < -1)
+                || ! doIncrement
+                || (softfloat_compare128M(
+                        extSigPtr + indexMultiwordHi( 5, 4 ), maxSig )
+                        < 0);
+            softfloat_shiftRightJam160M( extSigPtr, -exp, extSigPtr );
+            exp = 0;
+            sigExtra = extSigPtr[indexWordLo( 5 )];
+            if ( isTiny && sigExtra ) {
+                softfloat_raiseFlags( softfloat_flag_underflow SOFTFLOAT_STATE_ARG_COMMA );
+            }
+            doIncrement = (0x80000000 <= sigExtra);
+            if (
+                   ! roundNearEven
+                && (roundingMode != softfloat_round_near_maxMag)
+            ) {
+                doIncrement =
+                    (roundingMode
+                         == (sign ? softfloat_round_min : softfloat_round_max))
+                        && sigExtra;
+            }
+        } else if (
+               (0x7FFD < exp)
+            || ((exp == 0x7FFD) && doIncrement
+                    && (softfloat_compare128M(
+                            extSigPtr + indexMultiwordHi( 5, 4 ), maxSig )
+                            == 0))
+        ) {
+            /*----------------------------------------------------------------
+            *----------------------------------------------------------------*/
+            softfloat_raiseFlags(
+                softfloat_flag_overflow | softfloat_flag_inexact
+                SOFTFLOAT_STATE_ARG_COMMA );
+            if (
+                   roundNearEven
+                || (roundingMode == softfloat_round_near_maxMag)
+                || (roundingMode
+                        == (sign ? softfloat_round_min : softfloat_round_max))
+            ) {
+                ui = packToF128UI96( sign, 0x7FFF, 0 );
+                uj = 0;
+            } else {
+                ui = packToF128UI96( sign, 0x7FFE, 0x0000FFFF );
+                uj = 0xFFFFFFFF;
+            }
+            zWPtr[indexWordHi( 4 )] = ui;
+            zWPtr[indexWord( 4, 2 )] = uj;
+            zWPtr[indexWord( 4, 1 )] = uj;
+            zWPtr[indexWord( 4, 0 )] = uj;
+            return;
+        }
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    uj = extSigPtr[indexWord( 5, 1 )];
+    if ( sigExtra ) {
+        softfloat_exceptionFlags |= softfloat_flag_inexact;
+#ifdef SOFTFLOAT_ROUND_ODD
+        if ( roundingMode == softfloat_round_odd ) {
+            uj |= 1;
+            goto noIncrementPackReturn;
+        }
+#endif
+    }
+    if ( doIncrement ) {
+        ++uj;
+        if ( uj ) {
+            if ( ! (sigExtra & 0x7FFFFFFF) && roundNearEven ) uj &= ~1;
+            zWPtr[indexWord( 4, 2 )] = extSigPtr[indexWord( 5, 3 )];
+            zWPtr[indexWord( 4, 1 )] = extSigPtr[indexWord( 5, 2 )];
+            zWPtr[indexWord( 4, 0 )] = uj;
+            ui = extSigPtr[indexWordHi( 5 )];
+        } else {
+            zWPtr[indexWord( 4, 0 )] = uj;
+            ui = extSigPtr[indexWord( 5, 2 )] + 1;
+            zWPtr[indexWord( 4, 1 )] = ui;
+            uj = extSigPtr[indexWord( 5, 3 )];
+            if ( ui ) {
+                zWPtr[indexWord( 4, 2 )] = uj;
+                ui = extSigPtr[indexWordHi( 5 )];
+            } else {
+                ++uj;
+                zWPtr[indexWord( 4, 2 )] = uj;
+                ui = extSigPtr[indexWordHi( 5 )];
+                if ( ! uj ) ++ui;
+            }
+        }
+    } else {
+ noIncrementPackReturn:
+        zWPtr[indexWord( 4, 0 )] = uj;
+        ui = extSigPtr[indexWord( 5, 2 )];
+        zWPtr[indexWord( 4, 1 )] = ui;
+        uj |= ui;
+        ui = extSigPtr[indexWord( 5, 3 )];
+        zWPtr[indexWord( 4, 2 )] = ui;
+        uj |= ui;
+        ui = extSigPtr[indexWordHi( 5 )];
+        uj |= ui;
+        if ( ! uj ) exp = 0;
+    }
+    zWPtr[indexWordHi( 4 )] = packToF128UI96( sign, exp, ui );
+
+}
+