The front end of a compiler is language specific and includes a parser for the given language that results in parsed trees and the intermediate representation (the Register Transfer language, or RTL).

编译器的前端是特定于语言的，它包括一个用于给定语言的解析器，这个解析器产生经过解析的树和中间表示(Register Transfer Language, RTL)。

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Strictly speaking, the AST (abstract syntax tree) is also an IR (intermediate representation) - since it is not quite the source, and not quite the target language.

严格说来，AST(抽象语法树)也是一种IR——因为它既不是源代码，也不是目标语言。

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This paper presents the details of generating higher-level intermediate representation from IA-64 assembly language by means of semantic specification in decompiling.

介绍了在反编译过程中通过语义描述由IA-64汇编代码生成更高级的中间表示的实现技术。

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