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Contributing to LLVM
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Module 4
Clang Frontend and AST Analysis
1
Clang's Front-End: Lexer, Preprocessor, Parser, and Sema Roles
Identify the distinct roles of the Lexer, Preprocessor, Parser, and Sema in Clang.
2
Clang AST: Structure and Hierarchy
Explain the logical structure and hierarchy of the Clang Abstract Syntax Tree (AST).
3
AST Inspection with clang -Xclang -ast-dump
Use clang -Xclang -ast-dump to inspect the AST of a C/C++ program.
4
Clang Parser and Sema: AST Construction Flow
Describe the general flow of how Clang's Parser and Sema cooperate to build AST nodes.
5
Clang DiagnosticsEngine: Compiler Error Reporting
Explain the role of Clang's DiagnosticsEngine in reporting compiler errors.
6
Debugging Clang's C++ Parser
Set up a debug build of Clang and use a debugger (GDB/LLDB) to set a breakpoint in Clang's C++ parsing logic.
7
Debugging AST Creation
Step through the parsing of a simple expression in the debugger to observe the creation of the corresponding AST node.
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