libclc/generic/include/clc/clcfunc.h - llvm-project - Git at Google

 #define _CLC_OVERLOAD __attribute__((overloadable))
 #define _CLC_DECL
 #define _CLC_DEF __attribute__((always_inline))
 #define _CLC_INLINE __attribute__((always_inline)) static inline
	#define _CLC_OVERLOAD __attribute__((overloadable))
	#define _CLC_DECL
	#define _CLC_DEF __attribute__((always_inline))
	#define _CLC_INLINE __attribute__((always_inline)) static inline