Compiler Intrinsics

A compiler intrinsic is usually faster than a nonintrinsic function because code is placed in line and does not generate a function call.

None of the functions in this section require you to use the /Oi compiler option.

The Visual C++ compiler includes the following intrinsics:

• _AddressOfReturnAddress
• __assume
• __debugbreak
• _InterlockedCompareExchange
• _InterlockedDecrement
• _InterlockedExchange
• _InterlockedExchangeAdd
• _InterlockedIncrement
• __noop
• _ReadWriteBarrier
• _ReturnAddress

In addition, the Visual C++ compiler supports intrinsics for MMX, Streaming SIMD Extensions (SSE), and Streaming SIMD Extensions 2:

• MMX, SSE, and SSE2 Intrinsics

See Also

C++ Language Reference