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title = "Common Problems"
author = "Yann Herklotz"
tags = []
categories = []
backlinks = ["1c5a"]
forwardlinks = ["1c5c"]
zettelid = "1c5b"
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Aliasing
: In some architectures, assigning a value to one register can affect
the value to other registers.
Pre-coloring
: This is the problem that forces variables to be assigned to some
specific registers. For example, calling conventions may force a
register to be assigned in a specific range of registers.
NP-Problem
: Register allocation is an NP-complete problem, however there are
quite efficient ways to actually perform it by reducing it to graph
coloring.
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