Virtual-Physical Registers

The number of physical registers is one of the criticalissues of current superscalar out-of-order processors.Conventional architectures allocate in the decode stage anew storage location (e.g. physical register) for eachoperation that has a destination ...

It is well known that a large fraction of variables are short-lived. This paper proposes a novel approach to exploiting this fact to reduce the register pressure for pipelined processors with data-forwarding network. The idea is that the compiler can ...

Register file access time represents one of the critical delays of current microprocessors, and it is expected to become more critical as future processors increase the instruction window size and the issue width. This paper present a novel physical ...