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likely

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This commit is contained in:
J. Nick Koston
2025-10-28 21:59:43 -05:00
parent 5b5388b3ff
commit f96c4ad721
1 changed files with 4 additions and 2 deletions
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6
esphome/core/macros.h
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@@ -5,11 +5,13 @@
// Branch prediction hints for performance-critical paths // Branch prediction hints for performance-critical paths
#if defined(__GNUC__) || defined(__clang__) #if defined(__GNUC__) || defined(__clang__)
// GCC and Clang: use __builtin_expect for better optimization
#define ESPHOME_LIKELY(x) __builtin_expect(!!(x), 1) #define ESPHOME_LIKELY(x) __builtin_expect(!!(x), 1)
#define ESPHOME_UNLIKELY(x) __builtin_expect(!!(x), 0) #define ESPHOME_UNLIKELY(x) __builtin_expect(!!(x), 0)
#else #else
#define ESPHOME_LIKELY(x) (x) // Other C++20 compilers: use standard attributes
#define ESPHOME_UNLIKELY(x) (x) #define ESPHOME_LIKELY(x) (x) [[likely]]
#define ESPHOME_UNLIKELY(x) (x) [[unlikely]]
#endif #endif
#ifdef USE_ARDUINO #ifdef USE_ARDUINO