US 2015/0089192 A1 · Dynamic Attribute Inference

Abstract

In an embodiment, a processor may be configured to dynamically infer one or more attributes of input and/or output registers of an instruction, given the attributes corresponding to at least one input registers. The inference may be made at the issue circuit/stage of the processor, for those registers that do not have attribute information at the issue circuit/stage. In an embodiment, the processor may also include a register attribute tracker configured to track attributes of registers prior to the issue stage of the processor pipeline. The processor may feed back, to the register attribute tracker, inferred attributes and the register addresses of the registers to which the inferred attributes apply. The register attribute tracker may be configured to may associate the inferred attribute with the identified register attribute tracker may also be configured to infer input register attributes from other input register attributes.

Claims20

Dependent claims

A processor comprising:

a register attribute tracker configured to receive instruction operations corresponding to an instruction stream, and in response to receiving a first instruction operation having a plurality of input registers, wherein the register attribute tracker has associated a tracked attribute with a first input register of the plurality of input registers, the register attribute tracker is configured to associate a second attribute to a second input register of the first instruction operation based on the tracked attribute of the first input register.

Dependencies are inferred from the claim text.

Dynamic Attribute Inference

Life of this patent

Dynamic Attribute Inference

Life of this patent

Abstract

Claims20