Re: Unsafe Optimizations (WAS: Compiler

Ralph Johnson <>
Thu, 7 Jun 90 17:15:19 GMT

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Re: Unsafe Optimizations (WAS: Compiler (Ralph Johnson) (1990-06-07)
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Newsgroups: comp.compilers
From: Ralph Johnson <>
Date: Thu, 7 Jun 90 17:15:19 GMT
Organization: Compilers Central
Keywords: code, optimize

>Another reason for emphasizing front ends is probably the fact that these
>techniques are useful for lots of things other than writing compilers,
>whereas code generation and optimization is mainly of interest to compiler

The most important part of code optimization is dataflow analysis,
data and control dependencies, and so on. This is very important
in many areas of program analysis.

I think that main reason that compiler courses emphasize front ends
is tradition. I don't think that is a good reason.

Ralph Johnson

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