v_dot4_i32_iu8 GPU Native ISA AMD Vector

V DOT4 I32 IU8 Vector Packed Arithmetic

v_dot4_i32_iu8

Compute the dot product of two packed 4-D signed or unsigned 8-bit integer inputs in the signed 32-bit integer domain, add a signed 32-bit integer…

Encoding

Verified bit-level encoding data is not yet available for this instruction. The instruction-format classification below (VOP3P) is well-documented and stable; exact per-target opcode/field bit positions have not yet been imported from a verified source.
Format VOP3P
Execution Unit

Operands

Operand details have not yet been curated for this instruction.

GFX Target Compatibility

TargetSupport
gfx1100✅ Supported

Related

More in Vector Packed Arithmetic

Reference

AMDGPU / GFX ISA

Description

Compute the dot product of two packed 4-D signed or unsigned 8-bit integer inputs in the signed 32-bit integer domain, add a signed 32-bit integer value from the third input and store the result into a vector register.

Example

v_dot4_i32_iu8 v5, v1, v2, s3

A real instruction accepted by the LLVM assembler, taken verbatim from LLVM's own AMDGPU MC test suite (gfx11). Not from an AMD document, and not authored here.

Sources