Function Targets

Compiler target features and function multiversioning. More...

Macros
#define	hint_target(x)   __attribute__((target(x)))
	Compile a function with the named target features.
#define	hint_target_clones(...)   __attribute__((target_clones(__VA_ARGS__)))
	Request compiler-generated target variants and a runtime resolver.

Detailed Description

Compiler target features and function multiversioning.

Macro Definition Documentation

hint_target

#define hint_target

(

x

)

__attribute__((target(x)))

Compile a function with the named target features.

The compiler interprets the target string. This annotation does not test the running CPU: callers must establish that the required features are available. Compiler-specific function multiversioning can also use it on supported targets. It is not a portable runtime dispatcher.

hint_target_clones

#define hint_target_clones

(

...

)

__attribute__((target_clones(__VA_ARGS__)))

Request compiler-generated target variants and a runtime resolver.

Target strings, available platforms, linkage and template restrictions follow the compiler's target_clones attribute.