| 1 | //===- Msan.h - Utils related to the memory sanitizer ---------------------===// |
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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 | // This file declares and defines macros related to msan. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #ifndef MLIR_EXECUTIONENGINE_MSAN_H |
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| 14 | #define MLIR_EXECUTIONENGINE_MSAN_H |
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| 15 | |
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| 16 | // Memory sanitizer currently can't be enabled for the jit-compiled code, and |
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| 17 | // to suppress msan warnings we need to unpoison pointers and pointed-to |
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| 18 | // datastructures before they can be accessed. |
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| 19 | |
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| 20 | #ifndef __has_feature |
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| 21 | #define __has_feature(x) 0 |
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| 22 | #endif |
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| 23 | |
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| 24 | #if __has_feature(memory_sanitizer) && !defined(MLIR_MEMORY_SANITIZER) |
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| 25 | #define MLIR_MEMORY_SANITIZER |
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| 26 | #endif |
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| 27 | |
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| 28 | #if defined(MLIR_MEMORY_SANITIZER) |
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| 29 | #include <sanitizer/msan_interface.h> |
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| 30 | #define MLIR_MSAN_MEMORY_IS_INITIALIZED(p, s) __msan_unpoison((p), (s)) |
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| 31 | #else // Memory sanitizer: OFF |
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| 32 | #define MLIR_MSAN_MEMORY_IS_INITIALIZED(p, s) |
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| 33 | #endif // MLIR_MEMORY_SANITIZER |
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| 34 | |
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| 35 | #endif // MLIR_EXECUTIONENGINE_MSAN_H |
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| 36 | |
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