VP2INTERSECTQ

Forms

Operation

What the forms do, in pseudocode that our tests run against results recorded on real processors. How to read.

a = b = 0
for i in range(VL // 64):
    for j in range(VL // 64):
        if zmm2.q[i] == src3.q[j]:
            a |= 1 << i          # zmm2.q[i] is in src3
            b |= 1 << j          # src3.q[j] is in zmm2
k1.group[0].write(a)             # the even register
k1.group[1].write(b)             # the odd one after it
# m64bcst: src3.q[j] is the m64 for every j

Operands

Flags

None: XED records no flag that the forms test or change.

Exceptions

The exception class is XED's name for the set of exception conditions that a form follows. How to read.

All forms

AVX512-E4

Attributes

What else XED records about the forms. How to read.

Memory forms

embedded broadcast (tuple Full)

Intrinsics

The C intrinsics of Clang 23.1.2 that compile to VP2INTERSECTQ, each with the form it compiles to and the Clang options it needs. The forms come from compiling every intrinsic and decoding the result with Intel XED; all intrinsics A–Z explains the method.

CPUID and processors

Each form belongs to an XED ISA set. A form can be used when the processor reports every CPUID bit of one of its ISA set's alternatives.

More AVX512-VP2INTERSECT instructions

• VP2INTERSECTD