This method of register allocation is particularly relevant to GPU shader compilers. On modern GPU architectures, spilling variables is expensive due to limited memory bandwidth and high memory latency, while limiting register usage can improve performance due to dynamic partitioning of the register file. The XOR swap algorithm is therefore required by some GPU compilers.
This method of register alloca.tion is particularly relevant to GPU shader compilers. On modern GPU architectures, spilling. variables is expensive due to limited memory bandwidth and high memory latency, while limiting register usage can improve performance due to dynamic partitioning of the register file The XOR swap algorithm is therefore required by some GPU compilers