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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Dalvik.h"
#include "CompilerInternals.h"
namespace art {
/* FIXME - codegen helper functions, move to art runtime proper */
/*
* Float/double conversion requires clamping to min and max of integer form. If
* target doesn't support this normally, use these.
*/
int64_t D2L(double d)
{
static const double kMaxLong = (double)(s8)0x7fffffffffffffffULL;
static const double kMinLong = (double)(s8)0x8000000000000000ULL;
if (d >= kMaxLong)
return (s8)0x7fffffffffffffffULL;
else if (d <= kMinLong)
return (s8)0x8000000000000000ULL;
else if (d != d) // NaN case
return 0;
else
return (s8)d;
}
int64_t F2L(float f)
{
static const float kMaxLong = (float)(s8)0x7fffffffffffffffULL;
static const float kMinLong = (float)(s8)0x8000000000000000ULL;
if (f >= kMaxLong)
return (s8)0x7fffffffffffffffULL;
else if (f <= kMinLong)
return (s8)0x8000000000000000ULL;
else if (f != f) // NaN case
return 0;
else
return (s8)f;
}
/*
* Temporary placeholder. Should include run-time checks for size
* of fill data <= size of array. If not, throw arrayOutOfBoundsException.
* As with other new "FromCode" routines, this should return to the caller
* only if no exception has been thrown.
*
* NOTE: When dealing with a raw dex file, the data to be copied uses
* little-endian ordering. Require that oat2dex do any required swapping
* so this routine can get by with a memcpy().
*
* Format of the data:
* ushort ident = 0x0300 magic value
* ushort width width of each element in the table
* uint size number of elements in the table
* ubyte data[size*width] table of data values (may contain a single-byte
* padding at the end)
*/
void HandleFillArrayDataFromCode(Array* array, const uint16_t* table)
{
uint32_t size = (uint32_t)table[2] | (((uint32_t)table[3]) << 16);
uint32_t size_in_bytes = size * table[1];
UNIMPLEMENTED(WARNING) << "Need to check if array.length() <= size";
memcpy((char*)array + art::Array::DataOffset().Int32Value(),
(char*)&table[4], size_in_bytes);
}
} // namespace art
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