forked from mirrors/gecko-dev
865f64bb14
This patch makes mingwclang builds compile with -include _mingw.h. This makes MSVC-style constants defined from the start of C++ files rather than at the point where they start including files that depend on _mingw.h. Thus, mingwclang builds will behave more closely to regular builds, potentially avoiding future backouts for mingwclang build failures and/or successful but incorrect mingwclang builds. Differential Revision: https://phabricator.services.mozilla.com/D195662
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// This code tests the consistency of architecture-specific predefined macros
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// inherited from MSVC, before and after windows.h inclusion. See
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// https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros for a
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// list of such macros.
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// If this test compiles, it is successful. See bug 1866562 for an example
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// where mingwclang builds were failing to compile this code.
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#if defined(_M_IX86)
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constexpr auto kIX86 = _M_IX86;
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#endif
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#if defined(_M_X64)
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constexpr auto kX64 = _M_X64;
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#endif
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#if defined(_M_AMD64)
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constexpr auto kAMD64 = _M_AMD64;
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#endif
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#if defined(_M_ARM)
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constexpr auto kARM = _M_ARM;
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#endif
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#if defined(_M_ARM64)
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constexpr auto kARM64 = _M_ARM64;
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#endif
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#include <windows.h>
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#if defined(_M_IX86)
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static_assert(kIX86 == _M_IX86);
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#endif
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#if defined(_M_X64)
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static_assert(kX64 == _M_X64);
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#endif
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#if defined(_M_AMD64)
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static_assert(kAMD64 == _M_AMD64);
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#endif
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#if defined(_M_ARM)
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static_assert(kARM == _M_ARM);
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#endif
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#if defined(_M_ARM64)
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static_assert(kARM64 == _M_ARM64);
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#endif
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// If this test compiles, it is successful.
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int main() { return 0; }
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