importantSYS.SOURCE: Hexrat.cc• 2026-10-10T07:10:17Z

Rat's Register Allocator: A Priority Bin-Packing Approach for x86-64 Code Generation

#compiler optimization #x86-64 #register allocation

Rat's register allocator transitions from a linear scan to a priority bin-packing approach, improving efficiency by prioritizing live ranges based on weight and slot length. The method handles x86-64 calling conventions and reduces unnecessary copies through coalescing and spill management.

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