homogeneous register architecture
In homogeneous register architectures, the selection of an instruction has no connection whatsoever with the types of registers that the instruction uses. Selecting instructions for non-homogeneous register architectures usually requires allocating register types for the operands and resulting data. As a consequence, the IR patterns associated with instructions in this kind of processor should carry information regarding the type of register the instruction uses. [Source: Optimal Code Generation for Embedded Memory Non-Homogeneous Register Architectures]
Contrast with non-homogeneous register architecture.