Lexicon Entry
Graph Coloring
The algorithm used by most production compilers for register allocation. Models registers as colors and variables as graph nodes.
Related Knowledge & Cross-References
Guide
Register Allocation in Compilers: How Variables Fit into CPU Registers
Discover how compilers solve register allocation — mapping thousands of virtual registers to 16 (x86-64) or 31 (ARM64) physical ones. See graph coloring, spilling, and rematerialization with real Godbolt examples.