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Instruction Selection
The heart of any backend is instruction selection. LLVM implements several approaches; in this chapter, we will implement instruction selection via the selection directed acyclic graph (DAG) and with global instruction selection.
In this chapter, you will learn about the following topics:
- Defining the rules of the calling convention: This section shows you how to describe the rules of a calling convention in the target description
- Instruction selection via the selection DAG: This section teaches you how to implement instruction selection with a graph data structure
- Adding register and instruction information: This section explains how to access information in the target description, and what additional information you ...
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