do bit operations according to IEEE754 spec. Also include
convert_double_rtp(2,4,8,16) support
Signed-off-by: rander <[email protected]>
---
backend/src/libocl/script/ocl_convert.sh | 99 ++++++++++++++++++++++++++++++++
1 file changed, 99 insertions(+)
diff --git a/backend/src/libocl/script/ocl_convert.sh
b/backend/src/libocl/script/ocl_convert.sh
index 1a3f1f3..c9144c2 100755
--- a/backend/src/libocl/script/ocl_convert.sh
+++ b/backend/src/libocl/script/ocl_convert.sh
@@ -1245,6 +1245,105 @@ for vector_length in $VECTOR_LENGTHS; do
done
done
+if [ $1"a" != "-pa" ]; then
+echo '
+OVERLOADABLE double convert_double_rtp(ulong x)
+{
+ long exp;
+ long ret, ma, tmp;
+ int msbOne = 64 -clz(x);
+
+ exp = msbOne + DF_EXP_BIAS - 1;
+ ret = (exp << 52);
+ int shift = abs(53 - msbOne);
+ tmp = ret | ((x << shift) &DF_MAN_MASK);
+
+ ma = (x & ((0x1 << shift) - 1));
+ ret |= (x >> shift) &DF_MAN_MASK;
+ if(ma) ret += 1;
+
+ ret = (msbOne < 54) ? tmp:ret;
+ ret = (msbOne == 0) ? 0:ret;
+
+ return as_double(ret);
+}
+
+OVERLOADABLE double convert_double_rtz(ulong x)
+{
+ return 0;
+}
+
+OVERLOADABLE double convert_double_rtn(ulong x)
+{
+ return 0;
+}
+
+OVERLOADABLE double convert_double_rte(ulong x)
+{
+ return 0;
+}
+'
+fi
+
+TTYPES=" ulong:8"
+for vector_length in $VECTOR_LENGTHS; do
+ for ftype in $TTYPES; do
+ fbasetype=`IFS=:; set -- dummy $ftype; echo $2`
+
+ if test $vector_length -eq 1; then
+ if [ $1"a" = "-pa" ]; then
+ echo "OVERLOADABLE double convert_double_rte($fbasetype x);"
+ echo "OVERLOADABLE double convert_double_rtz($fbasetype x);"
+ echo "OVERLOADABLE double convert_double_rtp($fbasetype x);"
+ echo "OVERLOADABLE double convert_double_rtn($fbasetype x);"
+ fi
+ continue
+ fi
+
+ for rounding in $ROUNDING_MODES; do
+ fvectortype=$fbasetype$vector_length
+ tvectortype=double$vector_length
+ conv="convert_double_${rounding}"
+
+ construct="$conv(v.s0)"
+ if test $vector_length -gt 1; then
+ construct="$construct, $conv(v.s1)"
+ fi
+ if test $vector_length -gt 2; then
+ construct="$construct, $conv(v.s2)"
+ fi
+ if test $vector_length -gt 3; then
+ construct="$construct, $conv(v.s3)"
+ fi
+ if test $vector_length -gt 4; then
+ construct="$construct, $conv(v.s4)"
+ construct="$construct, $conv(v.s5)"
+ construct="$construct, $conv(v.s6)"
+ construct="$construct, $conv(v.s7)"
+ fi
+ if test $vector_length -gt 8; then
+ construct="$construct, $conv(v.s8)"
+ construct="$construct, $conv(v.s9)"
+ construct="$construct, $conv(v.sA)"
+ construct="$construct, $conv(v.sB)"
+ construct="$construct, $conv(v.sC)"
+ construct="$construct, $conv(v.sD)"
+ construct="$construct, $conv(v.sE)"
+ construct="$construct, $conv(v.sF)"
+ fi
+
+ if [ $1"a" = "-pa" ]; then
+ echo "OVERLOADABLE $tvectortype
convert_${tvectortype}_${rounding}($fvectortype v);"
+ else
+ echo "OVERLOADABLE $tvectortype
convert_${tvectortype}_${rounding}($fvectortype v) {"
+ echo " return ($tvectortype)($construct);"
+ echo "}"
+ echo
+ fi
+ done
+ done
+done
+
if [ $1"a" = "-pa" ]; then
echo "#endif /* __OCL_CONVERT_H__ */"
fi
--
2.7.4
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