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The structure of an optimizing compiler

The structure of an optimizing compiler. String of characters. Lexical analyzer. String of tokens. Parser. Parse tree. Semantic analyzer. Parse tree. Intermediate-code generator. Medium-level intermediate code. Optimizer. Medium-level intermediate code. Code Generator.

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The structure of an optimizing compiler

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  1. The structure of an optimizing compiler String of characters Lexical analyzer String of tokens Parser Parse tree Semantic analyzer Parse tree Intermediate-code generator Medium-level intermediate code Optimizer Medium-level intermediate code Code Generator Low-level intermediate code Postpass optimizer Relocatable object module or runable machine code

  2. 1C 5C 2C 3C Source and high-level optimizations A B 4C D E

  3. 1C 5C 2C 3C High and mid-level optimization A B 4C D E

  4. 2C 3C Medium and low-level optimizations A B 1C 5C 4C D E

  5. 1C 5C 2C 3C Low-level (machine dependent) optimizations A B 4C D E

  6. 1C 5C 2C 3C Link-time optimizations A B 4C D E

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