Attributed linear intermediate representations for retargetable code generators

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Abstract
This paper illustrates the usefulness of an attributed prefix linear intermediate representation for compiler code generation. In separating the machine‐independent and machine‐dependent aspects of a compiler, we discuss the advantages and disadvantages of an attributed linear intermediate representation with respect to tree‐structured intermediate representations. Some of these issues are relevant to fundamental questions of compiler structure with particular emphasis on retargetability. We discuss our implementation experience using this linear intermediate representation with a table‐driven code generation scheme for a variety of target architectures.

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