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Update ASSUME, add ASSERT and AUDIT

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- ASSUME now uses __builtin_assume in clang
- ASSERT defined as a wrapper around verify
- AUDIT aliases ASSERT when _DEBUG or _AUDIT are set, otherwise empty
This commit is contained in:
Rui Pinheiro 2018-09-06 22:04:26 +01:00 committed by kd-11
parent 13faf4e816
commit a07cbaca8e
1 changed files with 30 additions and 6 deletions
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36
Utilities/types.h
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@ -21,20 +21,34 @@
#define IS_BE_MACHINE 0
#ifdef _MSC_VER
#define ASSUME(cond) __assume(cond)
#define ASSUME(...) __assume(__VA_ARGS__) // MSVC __assume ignores side-effects
#define LIKELY
#define UNLIKELY
#define SAFE_BUFFERS __declspec(safebuffers)
#define NEVER_INLINE __declspec(noinline)
#define FORCE_INLINE __forceinline
#else
#define ASSUME(cond) do { if (!(cond)) __builtin_unreachable(); } while (0)
#define LIKELY(cond) __builtin_expect(!!(cond), 1)
#define UNLIKELY(cond) __builtin_expect(!!(cond), 0)
#else // not _MSC_VER
#ifdef __clang__
#if defined(__has_builtin) && __has_builtin(__builtin_assume)
#pragma clang diagnostic ignored "-Wassume" // ignore the clang "side-effects ignored" warning
#define ASSUME(...) __builtin_assume(!!(__VA_ARGS__)) // __builtin_assume (supported by modern clang) ignores side-effects
#endif
#endif
#ifndef ASSUME // gcc and old clang
#define ASSUME(...) do { if (!(__VA_ARGS__)) __builtin_unreachable(); } while (0) // note: the compiler will generate code to evaluate "cond" if the expression is opaque
#endif
#define LIKELY(...) __builtin_expect(!!(__VA_ARGS__), 1)
#define UNLIKELY(...) __builtin_expect(!!(__VA_ARGS__), 0)
#define SAFE_BUFFERS
#define NEVER_INLINE __attribute__((noinline))
#define FORCE_INLINE __attribute__((always_inline)) inline
#endif
#endif // _MSC_VER
#define CHECK_SIZE(type, size) static_assert(sizeof(type) == size, "Invalid " #type " type size")
#define CHECK_ALIGN(type, align) static_assert(alignof(type) == align, "Invalid " #type " type alignment")
@ -56,6 +70,16 @@
#define STR_CASE(...) case __VA_ARGS__: return #__VA_ARGS__
#define ASSERT(...) do { if(!(__VA_ARGS__)) fmt::raw_error("Assertion failed: " STRINGIZE(__VA_ARGS__) HERE); } while(0)
#if defined(_DEBUG) || defined(_AUDIT)
#define AUDIT(...) ASSERT(__VA_ARGS__)
#else
#define AUDIT(...) ((void)0)
#endif
using schar = signed char;
using uchar = unsigned char;
using ushort = unsigned short;