| //===--- shuffle.cpp - Implementation of the external shuffle idiom API -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "target/shuffle.h" |
| |
| #pragma omp declare target |
| |
| static constexpr uint64_t AllLanes = -1; |
| |
| int32_t __kmpc_shuffle_int32(int32_t val, int16_t delta, int16_t size) { |
| return __kmpc_impl_shfl_down_sync(AllLanes, val, delta, size); |
| } |
| |
| int64_t __kmpc_shuffle_int64(int64_t val, int16_t delta, int16_t size) { |
| uint32_t lo, hi; |
| __kmpc_impl_unpack(val, lo, hi); |
| hi = __kmpc_impl_shfl_down_sync(AllLanes, hi, delta, size); |
| lo = __kmpc_impl_shfl_down_sync(AllLanes, lo, delta, size); |
| return __kmpc_impl_pack(lo, hi); |
| } |
| |
| #pragma omp end declare target |
