LLVM 2.0

• AST
• Abstract syntax tree
• Better warning control
• C language family frontend for LLVM
• C/ObjC parser
• Chris Lattner
• Clang
• Code generator
• Codegen
• Compiler
• Development builds
• Distcc
• Enum definitions
• Expressive diagnostics
• FORTRAN & Ada
• File scoped variables
• Function declarations
• GCC 4.0
• GCC 4.1 front-end features
• GCC front-end is difficult to work with
• GCC is slow and memory hungry
• GIMPLE
• Good diagnostics
• Header analysis
• Header preprocessing
• IDE
• IR
• Indexing
• LLVC C Family Frontend
• LLVM
• LLVM IR
• Library based architecture
• Link Time Optimization
• Macros
• OpenMP
• Optimizer 
• PIC support
• Parse
• Precompiled Headers (PCH)
• Precompiled headers
• Preprocess
• Refactoring
• Release builds
• Rename variable
• Semantic analysis
• Source analysis
• Source-Level Analysis tools
• Structure definitions
• System headers are huge
• Token
• Tree building
• Typedefs
• Unified parser for C-based languages