s_get_waveid_in_workgroup GPU Native ISA AMD Scalar

S GET WAVEID IN WORKGROUP Scalar Memory

s_get_waveid_in_workgroup

Return the wave's ID within a workgroup 0-(N-1).

Encoding

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

Operands

Operand details have not yet been curated for this instruction.

GFX Target Compatibility

Per-target GFX compatibility has not yet been verified for this instruction.

Related

More in Scalar Memory

Reference

AMDGPU / GFX ISA

Description

Return the wave's ID within a workgroup 0-(N-1). Return zero if wave is not in a workgroup. ID reflects the order in which waves were created within each workgroup.

Example

s_get_waveid_in_workgroup s0

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