Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017-2018 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 24 | |
Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 25 | #pragma once |
| 26 | |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 27 | // Macro for unreachable code (e.g. impossible default cases on switch) |
| 28 | #define UNREACHABLE(why) __builtin_unreachable() |
Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 29 | |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 30 | // Paranoid option for the above with assert |
| 31 | // #define UNREACHABLE(why) assert(0 && why) |
Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 32 | |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 33 | inline int iceildiv(const int a, const int b) |
| 34 | { |
| 35 | return (a + b - 1) / b; |
| 36 | } |
Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 37 | |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 38 | template <typename T> |
| 39 | inline T roundup(const T a, const T b) |
| 40 | { |
| 41 | T rem = a % b; |
Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 42 | |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 43 | if(rem) |
| 44 | { |
| 45 | return a + b - rem; |
Michele Di Giorgio | 5b6904b | 2018-01-29 12:24:14 +0000 | [diff] [blame] | 46 | } |
Pablo Tello | eb82fd2 | 2018-02-23 13:43:50 +0000 | [diff] [blame] | 47 | else |
| 48 | { |
| 49 | return a; |
| 50 | } |
| 51 | } |