gccint: Passes

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1 9 Passes and Files of the Compiler
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1 This chapter is dedicated to giving an overview of the optimization and
1 code generation passes of the compiler.  In the process, it describes
1 some of the language front end interface, though this description is no
1 where near complete.
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· Parsing pass         The language front end turns text into bits.
· Gimplification pass  The bits are turned into something we can optimize.
· Pass manager         Sequencing the optimization passes.
· Tree SSA passes      Optimizations on a high-level representation.
· RTL passes           Optimizations on a low-level representation.
· Optimization info    Dumping optimization information from passes.
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