| buzbee | 67bf885 | 2011-08-17 17:51:35 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "Dalvik.h" |
| 18 | #include "CompilerInternals.h" |
| 19 | |
| 20 | /* FIXME - codegen helper functions, move to art runtime proper */ |
| 21 | |
| 22 | /* |
| 23 | * Float/double conversion requires clamping to min and max of integer form. If |
| 24 | * target doesn't support this normally, use these. |
| 25 | */ |
| 26 | s8 artD2L(double d) |
| 27 | { |
| 28 | static const double kMaxLong = (double)(s8)0x7fffffffffffffffULL; |
| 29 | static const double kMinLong = (double)(s8)0x8000000000000000ULL; |
| 30 | if (d >= kMaxLong) |
| 31 | return (s8)0x7fffffffffffffffULL; |
| 32 | else if (d <= kMinLong) |
| 33 | return (s8)0x8000000000000000ULL; |
| 34 | else if (d != d) // NaN case |
| 35 | return 0; |
| 36 | else |
| 37 | return (s8)d; |
| 38 | } |
| 39 | |
| 40 | s8 artF2L(float f) |
| 41 | { |
| 42 | static const float kMaxLong = (float)(s8)0x7fffffffffffffffULL; |
| 43 | static const float kMinLong = (float)(s8)0x8000000000000000ULL; |
| 44 | if (f >= kMaxLong) |
| 45 | return (s8)0x7fffffffffffffffULL; |
| 46 | else if (f <= kMinLong) |
| 47 | return (s8)0x8000000000000000ULL; |
| 48 | else if (f != f) // NaN case |
| 49 | return 0; |
| 50 | else |
| 51 | return (s8)f; |
| 52 | } |