3 Subsystem Documentation
4 =======================
29 .. FIXME: once LangRef is Sphinxified, HowToUseInstrMappings should be put
30 under LangRef's toctree instead of this page's toctree.
32 * :doc:`WritingAnLLVMPass`
34 Information on how to write LLVM transformations and analyses.
36 * :doc:`WritingAnLLVMBackend`
38 Information on how to write LLVM backends for machine targets.
40 * :ref:`code_generator`
42 The design and implementation of the LLVM code generator. Useful if you are
43 working on retargetting LLVM to a new architecture, designing a new codegen
44 pass, or enhancing existing components.
48 Describes the TableGen tool, which is used heavily by the LLVM code
51 * :ref:`alias_analysis`
53 Information on how to write a new alias analysis implementation or how to
54 use existing analyses.
56 * :doc:`GarbageCollection`
58 The interfaces source-language compilers should use for compiling GC'd
61 * :doc:`Source Level Debugging with LLVM <SourceLevelDebugging>`
63 This document describes the design and philosophy behind the LLVM
64 source-level debugger.
68 This document describes the current status of vectorization in LLVM.
70 * :ref:`exception_handling`
72 This document describes the design and implementation of exception handling
77 Automatic bug finder and test-case reducer description and usage
80 * :ref:`bitcode_format`
82 This describes the file format and encoding used for LLVM "bc" files.
84 * :doc:`System Library <SystemLibrary>`
86 This document describes the LLVM System Library (``lib/System``) and
87 how to keep LLVM source code portable
91 This document describes the interface between LLVM intermodular optimizer
92 and the linker and its design
96 How to build your programs with link-time optimization on Linux.
98 * :ref:`debugging-jited-code`
100 How to debug JITed code with GDB.
102 * :ref:`branch_weight`
104 Provides information about Branch Prediction Information.
106 * :ref:`segmented_stacks`
108 This document describes segmented stacks and how they are used in LLVM.
110 * `Howto: Implementing LLVM Integrated Assembler`_
112 A simple guide for how to implement an LLVM integrated assembler for an
115 .. _`Howto: Implementing LLVM Integrated Assembler`: http://www.embecosm.com/download/ean10.html
117 * :ref:`marked_up_disassembly`
119 This document describes the optional rich disassembly output syntax.