| 1 | //===-- Test for the shuffle operations on the GPU ------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/__support/CPP/bit.h" |
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| 10 | #include "src/__support/GPU/utils.h" |
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| 11 | #include "test/IntegrationTest/test.h" |
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| 12 | |
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| 13 | using namespace LIBC_NAMESPACE; |
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| 14 | |
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| 15 | // Test to ensure that match any / match all work. |
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| 16 | static void test_match() { |
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| 17 | // FIXME: Disable on older SMs as they hang for some reason. |
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| 18 | #if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 700 |
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| 19 | uint64_t mask = gpu::get_lane_mask(); |
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| 20 | EXPECT_EQ(1ull << gpu::get_lane_id(), |
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| 21 | gpu::match_any(mask, gpu::get_lane_id())); |
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| 22 | EXPECT_EQ(mask, gpu::match_any(mask, 1)); |
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| 23 | |
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| 24 | uint64_t expected = gpu::get_lane_id() < 16 ? 0xffff : 0xffff0000; |
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| 25 | EXPECT_EQ(expected, gpu::match_any(mask, gpu::get_lane_id() < 16)); |
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| 26 | EXPECT_EQ(mask, gpu::match_all(mask, 1)); |
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| 27 | EXPECT_EQ(0ull, gpu::match_all(mask, gpu::get_lane_id())); |
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| 28 | #endif |
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| 29 | } |
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| 30 | |
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| 31 | TEST_MAIN(int argc, char **argv, char **envp) { |
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| 32 | if (gpu::get_thread_id() >= gpu::get_lane_size()) |
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| 33 | return 0; |
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| 34 | |
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| 35 | test_match(); |
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| 36 | |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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