|
236
|
1 // -*- C++ -*-
|
|
|
2 //===----------------------------------------------------------------------===//
|
|
|
3 //
|
|
|
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
|
5 // See https://llvm.org/LICENSE.txt for license information.
|
|
|
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
7 //
|
|
|
8 //===----------------------------------------------------------------------===//
|
|
|
9
|
|
|
10 #ifndef _LIBCPP___ASSERT
|
|
|
11 #define _LIBCPP___ASSERT
|
|
|
12
|
|
|
13 #include <__config>
|
|
|
14 #include <__verbose_abort>
|
|
|
15
|
|
|
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
|
17 # pragma GCC system_header
|
|
|
18 #endif
|
|
|
19
|
|
252
|
20 #define _LIBCPP_ASSERT(expression, message) \
|
|
|
21 (__builtin_expect(static_cast<bool>(expression), 1) \
|
|
|
22 ? (void)0 \
|
|
|
23 : _LIBCPP_VERBOSE_ABORT( \
|
|
|
24 "%s:%d: assertion %s failed: %s\n", __builtin_FILE(), __builtin_LINE(), #expression, message))
|
|
236
|
25
|
|
252
|
26 // TODO: __builtin_assume can currently inhibit optimizations. Until this has been fixed and we can add
|
|
|
27 // assumptions without a clear optimization intent, disable that to avoid worsening the code generation.
|
|
|
28 // See https://discourse.llvm.org/t/llvm-assume-blocks-optimization/71609 for a discussion.
|
|
|
29 #if 0 && __has_builtin(__builtin_assume)
|
|
|
30 # define _LIBCPP_ASSUME(expression) \
|
|
|
31 (_LIBCPP_DIAGNOSTIC_PUSH _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wassume") \
|
|
|
32 __builtin_assume(static_cast<bool>(expression)) _LIBCPP_DIAGNOSTIC_POP)
|
|
236
|
33 #else
|
|
252
|
34 # define _LIBCPP_ASSUME(expression) ((void)0)
|
|
236
|
35 #endif
|
|
|
36
|
|
|
37 #endif // _LIBCPP___ASSERT
|
