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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
An alternative SSA construction algorithm for GCC
 Kastl, Filip ; Hubička, Jan (advisor) ; Jambor, Martin (referee)
SSA form is a very important concept in compiler internal code representa- tion. Φ-functions are an integral part of SSA form. Braun, Buchwald, Hack, Leißa, Mallon and Zwinkau introduce a new algorithm for SSA construction and another related algorithm for reducing the number of Φ-functions. These algorithms are not yet implemented in the GCC compiler. Firstly, we introduce, implement and test a basic code generation API based on the SSA construction algorithm. We list the possible extensions and usecases of the API. Then we implement the Φ optimization as a standalone pass. We use it to measure the number of redundant Φ-functions produced by other GCC passes. Finally, we conclude that GCC would benefit from including both of these algorithms. 1
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