Intrinsics available on all architectures

The Microsoft C/C++ compiler and the Universal C Runtime Library (UCRT) make some intrinsics available on all architectures.

Compiler intrinsics

The following intrinsics are available with the x86, AMD64, ARM, and ARM64 architectures:

Intrinsic	Header
_AddressOfReturnAddress	intrin.h
_BitScanForward	intrin.h
_BitScanReverse	intrin.h
_bittest	intrin.h
_bittestandcomplement	intrin.h
_bittestandreset	intrin.h
_bittestandset	intrin.h
__code_seg	intrin.h
__debugbreak	intrin.h
_disable	intrin.h
_enable	intrin.h
__fastfail	intrin.h
_InterlockedAnd	intrin.h
_InterlockedAnd16	intrin.h
_InterlockedAnd8	intrin.h
_interlockedbittestandreset	intrin.h
_interlockedbittestandset	intrin.h
_InterlockedCompareExchange	intrin.h
_InterlockedCompareExchange16	intrin.h
_InterlockedCompareExchange8	intrin.h
_InterlockedCompareExchangePointer	intrin.h
_InterlockedDecrement	intrin.h
_InterlockedDecrement16	intrin.h
_InterlockedExchange	intrin.h
_InterlockedExchange16	intrin.h
_InterlockedExchange8	intrin.h
_InterlockedExchangeAdd	intrin.h
_InterlockedExchangeAdd16	intrin.h
_InterlockedExchangeAdd8	intrin.h
_InterlockedExchangePointer	intrin.h
_InterlockedIncrement	intrin.h
_InterlockedIncrement16	intrin.h
_InterlockedOr	intrin.h
_InterlockedOr16	intrin.h
_InterlockedOr8	intrin.h
_InterlockedXor	intrin.h
_InterlockedXor16	intrin.h
_InterlockedXor8	intrin.h
__nop	intrin.h
_ReadBarrier	intrin.h
_ReadWriteBarrier	intrin.h
_ReturnAddress	intrin.h
_rotl16	intrin.h
_rotl8	intrin.h
_rotr16	intrin.h
_rotr8	intrin.h
_WriteBarrier	intrin.h

UCRT intrinsics

The following UCRT functions have intrinsic forms on all architectures:

Intrinsic	Header
abs	stdlib.h
_abs64	stdlib.h
acos	math.h
acosf	math.h
acosl	math.h
_alloca	malloc.h
asin	math.h
asinf	math.h
asinl	math.h
atan	math.h
atan2	math.h
atan2f	math.h
atan2l	math.h
atanf	math.h
atanl	math.h
_byteswap_uint64	stdlib.h
_byteswap_ulong	stdlib.h
_byteswap_ushort	stdlib.h
ceil	math.h
ceilf	math.h
ceill	math.h
cos	math.h
cosf	math.h
cosh	math.h
coshf	math.h
coshl	math.h
cosl	math.h
exp	math.h
expf	math.h
expl	math.h
fabs	math.h
fabsf	math.h
floor	math.h
floorf	math.h
floorl	math.h
fmod	math.h
fmodf	math.h
fmodl	math.h
labs	stdlib.h
llabs	stdlib.h
log	math.h
log10	math.h
log10f	math.h
log10l	math.h
logf	math.h
logl	math.h
_lrotl	stdlib.h
_lrotr	stdlib.h
memcmp	string.h
memcpy	string.h
memset	string.h
pow	math.h
powf	math.h
powl	math.h
_rotl	stdlib.h
_rotl64	stdlib.h
_rotr	stdlib.h
_rotr64	stdlib.h
sin	math.h
sinf	math.h
sinh	math.h
sinhf	math.h
sinhl	math.h
sinl	math.h
sqrt	math.h
sqrtf	math.h
sqrtl	math.h
strcat	string.h
strcmp	string.h
strcpy	string.h
strlen	string.h
_strset	string.h
strset	string.h
tan	math.h
tanf	math.h
tanh	math.h
tanhf	math.h
tanhl	math.h
tanl	math.h
wcscat	string.h
wcscmp	string.h
wcscpy	string.h
wcslen	string.h
_wcsset	string.h

In Visual Studio 2022 version 17.2 and later, these functions have intrinsic forms on x64 and ARM64 platforms:

Intrinsic	Header
log2	math.h
log2f	math.h

See also

ARM intrinsics
ARM64 intrinsics
x86 intrinsics list
x64 (amd64) intrinsics list