Logical Operators

The logical operators use the symbols and intrinsics listed in the following table.

Bitwise Operation Operator Symbols Syntax Usage Corresponding Intrinsic
Standard w/assign Standard w/assign
AND & &= R = A & B R &= A _mm_and_si64
_mm_and_si128
OR | |= R = A | B R |= A _mm_and_si64
_mm_and_si128
XOR ^ ^= R = A^B R ^= A _mm_and_si64
_mm_and_si128
ANDNOT andnot N/A R = A andnot B N/A _mm_and_si64
_mm_and_si128

Logical Operators and Miscellaneous Exceptions.

A and B converted to M64. Result assigned to Iu8vec8.

I64vec1 A;

Is8vec8 B;

Iu8vec8 C;

C = A & B;

Same size and signedness operators return the nearest common ancestor.

I32vec2 R = Is32vec2 A ^ Iu32vec2 B;

A&B returns M64, which is cast to Iu8vec8.

C = Iu8vec8(A&B)+ C;

When A and B are of the same class, they return the same type. When A and B are of different classes, the return value is the return type of the nearest common ancestor.

The logical operator returns values for combinations of classes, listed in the following tables, apply when A and B are of different classes.

Return (R) AND OR XOR NAND A Operand B Operand
I64vec1 R & | ^ andnot I[s|u]64vec2 A I[s|u]64vec2 B
I64vec2 R & | ^ andnot I[s|u]64vec2 A I[s|u]64vec2 B
I32vec2 R & | ^ andnot I[s|u]32vec2 A I[s|u]32vec2 B
I32vec4 R & | ^ andnot I[s|u]32vec4 A I[s|u]32vec4 B
I16vec4 R & | ^ andnot I[s|u]16vec4 A I[s|u]16vec4 B
I16vec8 R & | ^ andnot I[s|u]16vec8 A I[s|u]16vec8 B
I8vec8 R & | ^ andnot I[s|u]8vec8 A I[s|u]8vec8 B
I8vec16 R & | ^ andnot I[s|u]8vec16 A I[s|u]8vec16 B

For logical operators with assignment, the return value of R is always the same data type as the pre-declared value of R as listed in the table that follows.