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diff --git a/chapter20/README.md b/chapter20/README.md index 96803e51..34824650 100644 --- a/chapter20/README.md +++ b/chapter20/README.md @@ -7,6 +7,11 @@ English | [日本語](README.ja.md) The grammar is unchanged from [Chapter 18](../chapter18/docs/18-grammar.md). +`RegAlloc` follows local scheduling and assigns physical registers or stack +slots to live ranges. Request the complete pipeline through allocation with +`code.driver(CodeGen.Phase.RegAlloc, "x86_64_v2", "SystemV")`. Instruction +encoding is introduced in Chapter 21; this chapter stops with allocated nodes. + ## Some Reading Material This is a Briggs-Chaitin-Click allocator, and is very similar to the one used |