global_atomic_fmax_x2 GPU Native ISA AMD Vector

GLOBAL ATOMIC FMAX X2 Vector/Global Memory

global_atomic_fmax_x2

Select the maximum of two double-precision float inputs, given two values stored in the data register and a location in the global aperture.

Encoding

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

Reference

AMDGPU / GFX ISA

Description

Select the maximum of two double-precision float inputs, given two values stored in the data register and a location in the global aperture. Update the global aperture with the selected value. Store the original value from global aperture into a vector register iff the GLC bit is set.

Sources