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https://github.com/encounter/dawn-cmake.git
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884f95258d
Emits branch prediction hints. Give unlikely hints about where we call TINT_ICE. Change-Id: Ied5bc3d7c8b3a838e96e5a0a64156048f90411c6 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/116875 Commit-Queue: Ben Clayton <bclayton@google.com> Auto-Submit: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
111 lines
4.8 KiB
C
111 lines
4.8 KiB
C
// Copyright 2022 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/tint/utils/concat.h"
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#ifndef SRC_TINT_UTILS_COMPILER_MACROS_H_
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#define SRC_TINT_UTILS_COMPILER_MACROS_H_
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#define TINT_REQUIRE_SEMICOLON static_assert(true)
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#if defined(_MSC_VER) && !defined(__clang__)
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////////////////////////////////////////////////////////////////////////////////
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// MSVC
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////////////////////////////////////////////////////////////////////////////////
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#define TINT_DISABLE_WARNING_CONSTANT_OVERFLOW __pragma(warning(disable : 4756))
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#define TINT_DISABLE_WARNING_MAYBE_UNINITIALIZED /* currently no-op */
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#define TINT_DISABLE_WARNING_NEWLINE_EOF /* currently no-op */
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#define TINT_DISABLE_WARNING_OLD_STYLE_CAST /* currently no-op */
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#define TINT_DISABLE_WARNING_SIGN_CONVERSION /* currently no-op */
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#define TINT_DISABLE_WARNING_UNREACHABLE_CODE __pragma(warning(disable : 4702))
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#define TINT_DISABLE_WARNING_WEAK_VTABLES /* currently no-op */
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#define TINT_DISABLE_WARNING_FLOAT_EQUAL /* currently no-op */
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// clang-format off
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#define TINT_BEGIN_DISABLE_WARNING(name) \
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__pragma(warning(push)) \
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TINT_CONCAT(TINT_DISABLE_WARNING_, name) \
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TINT_REQUIRE_SEMICOLON
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#define TINT_END_DISABLE_WARNING(name) \
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__pragma(warning(pop)) \
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TINT_REQUIRE_SEMICOLON
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// clang-format on
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#define TINT_UNLIKELY(x) x /* currently no-op */
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#define TINT_LIKELY(x) x /* currently no-op */
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#elif defined(__clang__)
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////////////////////////////////////////////////////////////////////////////////
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// Clang
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////////////////////////////////////////////////////////////////////////////////
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#define TINT_DISABLE_WARNING_CONSTANT_OVERFLOW /* currently no-op */
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#define TINT_DISABLE_WARNING_MAYBE_UNINITIALIZED /* currently no-op */
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#define TINT_DISABLE_WARNING_NEWLINE_EOF _Pragma("clang diagnostic ignored \"-Wnewline-eof\"")
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#define TINT_DISABLE_WARNING_OLD_STYLE_CAST _Pragma("clang diagnostic ignored \"-Wold-style-cast\"")
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#define TINT_DISABLE_WARNING_SIGN_CONVERSION \
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_Pragma("clang diagnostic ignored \"-Wsign-conversion\"")
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#define TINT_DISABLE_WARNING_UNREACHABLE_CODE /* currently no-op */
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#define TINT_DISABLE_WARNING_WEAK_VTABLES _Pragma("clang diagnostic ignored \"-Wweak-vtables\"")
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#define TINT_DISABLE_WARNING_FLOAT_EQUAL _Pragma("clang diagnostic ignored \"-Wfloat-equal\"")
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// clang-format off
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#define TINT_BEGIN_DISABLE_WARNING(name) \
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_Pragma("clang diagnostic push") \
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TINT_CONCAT(TINT_DISABLE_WARNING_, name) \
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TINT_REQUIRE_SEMICOLON
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#define TINT_END_DISABLE_WARNING(name) \
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_Pragma("clang diagnostic pop") \
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TINT_REQUIRE_SEMICOLON
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// clang-format on
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#define TINT_UNLIKELY(x) __builtin_expect(!!(x), false)
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#define TINT_LIKELY(x) __builtin_expect(!!(x), true)
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#elif defined(__GNUC__)
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////////////////////////////////////////////////////////////////////////////////
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// GCC
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////////////////////////////////////////////////////////////////////////////////
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#define TINT_DISABLE_WARNING_CONSTANT_OVERFLOW /* currently no-op */
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#define TINT_DISABLE_WARNING_MAYBE_UNINITIALIZED \
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_Pragma("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
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#define TINT_DISABLE_WARNING_NEWLINE_EOF /* currently no-op */
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#define TINT_DISABLE_WARNING_OLD_STYLE_CAST /* currently no-op */
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#define TINT_DISABLE_WARNING_SIGN_CONVERSION /* currently no-op */
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#define TINT_DISABLE_WARNING_UNREACHABLE_CODE /* currently no-op */
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#define TINT_DISABLE_WARNING_WEAK_VTABLES /* currently no-op */
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#define TINT_DISABLE_WARNING_FLOAT_EQUAL /* currently no-op */
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// clang-format off
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#define TINT_BEGIN_DISABLE_WARNING(name) \
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_Pragma("GCC diagnostic push") \
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TINT_CONCAT(TINT_DISABLE_WARNING_, name) \
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TINT_REQUIRE_SEMICOLON
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#define TINT_END_DISABLE_WARNING(name) \
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_Pragma("GCC diagnostic pop") \
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TINT_REQUIRE_SEMICOLON
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// clang-format on
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#define TINT_UNLIKELY(x) __builtin_expect(!!(x), false)
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#define TINT_LIKELY(x) __builtin_expect(!!(x), true)
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#else
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////////////////////////////////////////////////////////////////////////////////
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// Other
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////////////////////////////////////////////////////////////////////////////////
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#define TINT_BEGIN_DISABLE_WARNING(name) TINT_REQUIRE_SEMICOLON
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#define TINT_END_DISABLE_WARNING(name) TINT_REQUIRE_SEMICOLON
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#define TINT_UNLIKELY(x) x
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#define TINT_LIKELY(x) x
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#endif
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#endif // SRC_TINT_UTILS_COMPILER_MACROS_H_
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