实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
Table of Contents LLVM Cookbook Credits About the Authors About the Reviewers www.PacktPub.com Support files, eBooks, discount offers, and more Why Subscribe? Free Access for Packt account holders Preface What this book covers What you need for this book Who this book is for Sections Getting ready How to do it… How it works… There's more… See also Conventions Reader feedback Customer support Downloading the example code Downloading the color images of this book Errata Piracy Questions 1. LLVM Design and Use Introduction Understanding modular design Getting ready How to do it... How it works... There's more... See also Cross-compiling Clang/LLVM Getting ready How to do it... How it works... Converting a C source code to LLVM assembly Getting ready How to do it... How it works... See also Converting IR to LLVM bitcode Getting Ready How to do it... How it works... There's more... See also Converting LLVM bitcode to target machine assembly Getting ready How to do it... How it works... There's more... Converting LLVM bitcode back to LLVM assembly Getting ready How to do it... How it works... Transforming LLVM IR Getting ready How to do it... How it works... There's more... Linking LLVM bitcode Getting ready How to do it... How it works... Executing LLVM bitcode Getting ready How to do it... How it works... See also Using the C frontend Clang Getting ready How to do it… How it works... See also Using the GO frontend Getting ready How to do it… How it works… See also Using DragonEgg Getting ready How to do It… See also 2. Steps in Writing a Frontend Introduction Defining a TOY language How to do it… Implementing a lexer Getting ready How to do it… How it works… See also Defining Abstract Syntax Tree Getting ready How to do it… How it works… See also Implementing a parser Getting ready How to do it… How it works… See also Parsing simple expressions Getting ready How to do it… How it works… Parsing binary expressions Getting ready How to do it… See also Invoking a driver for parsing How to do it… How it works… See also Running lexer and parser on our TOY language Getting ready How to do it… How it works… See also Defining IR code generation methods for each AST class Getting ready How to do it… How it works… Generating IR code for expressions How to do it… See also Generating IR code for functions How to do it… How it works… See also Adding IR optimization support How to do it… See also 3. Extending the Frontend and Adding JIT Support Introduction Handling decision making paradigms – if/then/else constructs Getting ready How to do it... How it works… See also Generating code for loops Getting ready How to do it... How it works... See also Handling user-defined operators – binary operators Getting ready How to do it... How it works... See also Handling user-defined operators – unary operators Getting ready How to do it... How it works... See also Adding JIT support How to do it... How it works… 4. Preparing Optimizations Introduction Various levels of optimization Getting ready... How to do it… How it works… See Also Writing your own LLVM pass Getting ready How to do it… How it works See also Running your own pass with the opt tool How to do it… How it works… See also Using another pass in a new pass Getting ready How to do it… How it works… There's more… Registering a pass with pass manager Getting ready How to do it… How it works… See Also Writing an analysis pass Getting ready How to do it… How it works… Writing an alias analysis pass Getting ready How to do it... How it works… See also Using other analysis passes Getting ready… How to do it… How it works… See also 5. Implementing Optimizations Introduction Writing a dead code elimination pass Getting ready How to do it… How it works… See also Writing an inlining transformation pass Getting ready How to do it… How it works... Writing a pass for memory optimization Getting ready How to do it… How it works… See also Combining LLVM IR Getting started How to do it… How it works… See also Transforming and optimizing loops Getting ready How to do it… How it works… Reassociating expressions Getting Ready How to do it… How it works … Vectorizing IR Getting ready How to do it... How it works… See also… Other optimization passes Getting ready… How to do it… How it works… See also 6. Target-independent Code Generator Introduction The life of an LLVM IR instruction C Code to LLVM IR IR optimization LLVM IR to SelectionDAG SelectionDAG legalization Conversion from target-independent DAG to machine DAG Scheduling instructions Register allocation Code emission Visualizing LLVM IR CFG using GraphViz Getting ready How to do it… See also Describing targets using TableGen Getting ready How to do it How it works See also Defining an instruction set Getting ready How to do it… How it works… See also Adding a machine code descriptor How it's done… How it works… Implementing the MachineInstrBuilder class How to do it… How it works… Implementing the MachineBasicBlock class How to do it… How it works… See also Implementing the MachineFunction class How to do it… How it works… See also Writing an instruction selector How to do it… How it works… Legalizing SelectionDAG How to do it… How it works… Optimizing SelectionDAG How to do it… How it works… See also Selecting instruction from the DAG How to do it… How it works… See also Scheduling instructions in SelectionDAG How to do it… How it works… See also 7. Optimizing the Machine Code Introduction Eliminating common subexpression from machine code How to do it… How it works… See more Analyzing live intervals Getting ready How to do it… How it works… See also Allocating registers Getting ready How to do it… How it works… See also Inserting the prologue-epilogue code How to do it… How it works… Code emission How to do it… Tail call optimization Getting ready How to do it… How it works… Sibling call optimisation Getting ready How to do it… How it works… 8. Writing an LLVM Backend Introduction A sample backend Defining registers and registers sets Getting ready How to do it… How it works… See also Defining the calling convention How to do it… How it works… See also Defining the instruction set How to do it… How it works… See also Implementing frame lowering Getting ready How to do it… How it works… See also Printing an instruction Getting ready How to do it… How it works… Selecting an instruction Getting ready How to do it… How it works… See also Adding instruction encoding How to do it… How it works… See also Supporting a subtarget How to do it… See also Lowering to multiple instructions How to do it… How it works… See also Registering a target How to do it… How it works… See also 9. Using LLVM for Various Useful Projects Introduction Exception handling in LLVM Getting ready... How to do it… How it works… See also Using sanitizers Getting ready How to do it… How it works… See also… Writing the garbage collector with LLVM Getting ready How to do it… How it works… See also Converting LLVM IR to JavaScript Getting ready How to do it… See more Using the Clang Static Analyzer Getting ready How to do it… How it works… See also Using bugpoint Getting ready How to do it… How it works… See also Using LLDB Getting ready How to do it… See also Using LLVM utility passes Getting ready How to do it... See also Index
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