MIC 230: Compiler vocab
23 Cards in this Set
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Abstract Syntax Tree
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A contraction of the parse tree
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Attribute grammar
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A context free grammar augmented by a set of rules that specify computations.
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Basic block
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A maximal-length sequence of branch-free code
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Bottom-up parsing
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A parsing process that builds the parse tree from the leaves to the root.
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Control flow graph
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A graph that models the flow of control between the basic blocks in a program.
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Data dependency graph
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A graph that models the flow of values from the point where the value is created to the points where the value is used.
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First set
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For a given sequence of grammar symbols, α, the set of terminals that can start a sentence derived from α.
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Follow set
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For a given nonterminal the set of terminals that can occur immediately after the nonterminal in a sentence.
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Instruction set architecture
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The set of operations or instructions supported by a processor.
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Intermediate representations
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An internal representation of the source program created by the compiler.
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LL grammar
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A context free grammar suitable for deterministic top down parsing.
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LR grammar
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A context free grammar suitable for deterministic bottom up parsing.
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Lvalue
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An expression evlauated to a location such as the left hand side of an assignment statement.
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Optimizer
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A phase of the compiler process that restructures the intermediate representation or machine language representation to improve the quality of the compiled code.
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Parsing
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A phase of the compiler process that determines if the input stream is a sentence in the source language.
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Parser generator
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A program that builds a parser from the specifications of the programming language.
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Rvalue
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An expression evaluated to a value such as the right hand side of an assignment statement.
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Scanner
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A phase of the compiler that converts a stream of characters into a stream of words or tokens.
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Scanner generator
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A program that builds a scanner from the specification of the tokens in a programming language.
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Semantics
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The meaning of a language construct.
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Symbol table
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A data structure that stores identifiers and associated information.
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Syntax
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The form or structure of well-formed sentences in a language.
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Top-down parsing
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A parsing process that builds the parse tree from the root to the leaves.
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MIC 230: Motility