| /* |
| * 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]; |
| if (static_cast<int32_t>(size) > array->GetLength()) { |
| UNIMPLEMENTED(FATAL) << "need to throw AIOOBE and unwind"; |
| } |
| memcpy((char*)array + art::Array::DataOffset().Int32Value(), |
| (char*)&table[4], size_in_bytes); |
| } |
| |
| } // namespace art |