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WalterBright on Aug 13, 2021 | parent | context | favorite | on: C++ Exceptions: Under the Hood (2013)

"spilling" usually means a variable is sometimes in a register, sometimes on the stack. "Enregistering" means it is full time in a register.

titzer on Aug 13, 2021 [–]

But what's a variable, really? After SSA renaming, optimization, SSA deconstruction, then liveness analysis, coalescing, and finally live-range splitting, variables are history and the register allocator is only dealing with live ranges, typically.

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