| /* |
| * Copyright (c) 2014 Advanced Micro Devices, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #if __OPENCL_C_VERSION__ >= 200 |
| |
| #include "wg.h" |
| |
| #define GEN_AA(SUF,ID) \ |
| __attribute__((overloadable, always_inline)) int \ |
| work_group_##SUF(int predicate) \ |
| { \ |
| uint n = get_num_sub_groups(); \ |
| int a = sub_group_##SUF(predicate); \ |
| if (n == 1) \ |
| return a; \ |
| \ |
| __local int *p = (__local int *)__wg_scratch; \ |
| uint l = get_sub_group_local_id(); \ |
| uint i = get_sub_group_id(); \ |
| \ |
| if (l == 0) \ |
| p[i] = a; \ |
| \ |
| work_group_barrier(CLK_LOCAL_MEM_FENCE); \ |
| if (i == 0) { \ |
| a = l < n ? p[l] : ID; \ |
| a = sub_group_##SUF(a); \ |
| if (l == 0) \ |
| p[0] = a; \ |
| } \ |
| work_group_barrier(CLK_LOCAL_MEM_FENCE); \ |
| a = p[0]; \ |
| work_group_barrier(CLK_LOCAL_MEM_FENCE); \ |
| \ |
| return a; \ |
| } |
| |
| GEN_AA(all, 1U) |
| GEN_AA(any, 0U); |
| |
| #endif |
| |