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From: Seima Rao <seimarao@gmail.com>
Newsgroups: comp.compilers
Subject: Alternatives to Syntax Trees
Date: Sun, 15 Jan 2017 16:52:15 -0500 (EST)
Organization: Compilers Central
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Hi,

    Are there alternatives to syntax trees(i.e. the tree data structure)
    when compiling via yacc or yacc like  tools ?

Sincerely,
Seima Rao.
[There's quadruples, doubly linked lists of data structures.  They
make it easier to rearrange code, but harder to do just about anything
else.  There's also DAGs, which are trees that can have shared subtrees,
useful when you're doing common subexpressions or tail merging. -John]