The following table lists and describes integer arithmetic intrinsics that you can use across Intel architectures.
Intrinsic Syntax |
Description |
|---|---|
Intrinsics for all Supported Intel Architectures |
|
int abs(int) |
Returns the absolute value of an integer. |
long labs(long) |
Returns the absolute value of a long integer. |
unsigned long _lrotl(unsigned long value, int shift) |
Implements 64-bit left rotate of value by shift positions. |
unsigned long _lrotr(unsigned long value, int shift) |
Implements 64-bit right rotate of value by shift positions. |
unsigned int _rotl(unsigned int value, int shift) |
Implements 32-bit left rotate of value by shift positions. |
unsigned int _rotr(unsigned int value, int shift) |
Implements 32-bit right rotate of value by shift positions. |
Intrinsics for IA-32 and Intel® 64 Architectures |
|
unsigned short _rotwl(unsigned short value, int shift) |
Implements 16-bit left rotate of value by shift positions. |
unsigned short _rotwr(unsigned short value, int shift) |
Implements 16-bit right rotate of value by shift positions. |
Note
Passing a constant shift value in the rotate intrinsics results in higher performance.