- LLVM Cookbook
- Table of Contents
- LLVM Cookbook
- Credits
- About the Authors
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. LLVM Design and Use
- Introduction
- Understanding modular design
- Cross-compiling Clang/LLVM
- Converting a C source code to LLVM assembly
- Converting IR to LLVM bitcode
- Converting LLVM bitcode to target machine assembly
- Converting LLVM bitcode back to LLVM assembly
- Transforming LLVM IR
- Linking LLVM bitcode
- Executing LLVM bitcode
- Using the C frontend Clang
- Using the GO frontend
- Using DragonEgg
- 2. Steps in Writing a Frontend
- Introduction
- Defining a TOY language
- Implementing a lexer
- Defining Abstract Syntax Tree
- Implementing a parser
- Parsing simple expressions
- Parsing binary expressions
- Invoking a driver for parsing
- Running lexer and parser on our TOY language
- Defining IR code generation methods for each AST class
- Generating IR code for expressions
- Generating IR code for functions
- Adding IR optimization support
- 3. Extending the Frontend and Adding JIT Support
- 4. Preparing Optimizations
- 5. Implementing Optimizations
- 6. Target-independent Code Generator
- Introduction
- The life of an LLVM IR instruction
- Visualizing LLVM IR CFG using GraphViz
- Describing targets using TableGen
- Defining an instruction set
- Adding a machine code descriptor
- Implementing the MachineInstrBuilder class
- Implementing the MachineBasicBlock class
- Implementing the MachineFunction class
- Writing an instruction selector
- Legalizing SelectionDAG
- Optimizing SelectionDAG
- Selecting instruction from the DAG
- Scheduling instructions in SelectionDAG
- 7. Optimizing the Machine Code
- 8. Writing an LLVM Backend
- 9. Using LLVM for Various Useful Projects
- Index
In this chapter, we will cover the following recipes:
- Defining a TOY language
- Implementing a lexer
- Defining Abstract Syntax Tree
- Implementing a parser
- Parsing simple expressions
- Parsing binary expressions
- Invoking a driver for parsing
- Running lexer and parser on our TOY language
- Defining IR code generation methods for each AST class
- Generating IR code for expressions
- Generating IR code for functions
- Adding IR optimization support
-
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