| 1 | //===-- Test for parallel GPU malloc interface ----------------------------===// |
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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 "test/IntegrationTest/test.h" |
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| 10 | |
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| 11 | #include "src/__support/GPU/utils.h" |
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| 12 | #include "src/stdlib/free.h" |
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| 13 | #include "src/stdlib/malloc.h" |
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| 14 | |
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| 15 | using namespace LIBC_NAMESPACE; |
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| 16 | |
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| 17 | static inline void use(uint8_t *ptr, uint32_t size) { |
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| 18 | EXPECT_NE(ptr, nullptr); |
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| 19 | for (int i = 0; i < size; ++i) |
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| 20 | ptr[i] = uint8_t(i + gpu::get_thread_id()); |
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| 21 | |
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| 22 | // Try to detect if some other thread manages to clobber our memory. |
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| 23 | for (int i = 0; i < size; ++i) |
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| 24 | EXPECT_EQ(ptr[i], uint8_t(i + gpu::get_thread_id())); |
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| 25 | } |
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| 26 | |
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| 27 | TEST_MAIN(int, char **, char **) { |
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| 28 | void *ptrs[256]; |
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| 29 | for (int i = 0; i < 256; ++i) |
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| 30 | ptrs[i] = malloc(gpu::get_lane_id() % 2 ? 16 : 32); |
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| 31 | |
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| 32 | for (int i = 0; i < 256; ++i) |
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| 33 | use(reinterpret_cast<uint8_t *>(ptrs[i]), gpu::get_lane_id() % 2 ? 16 : 32); |
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| 34 | |
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| 35 | for (int i = 0; i < 256; ++i) |
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| 36 | free(ptrs[i]); |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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