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Add skeleton to the section contents so that Joel knows what to fill in
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3596 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -9,12 +9,56 @@
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<ol>
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<li><a href="#introduction">Introduction</a>
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<li><a href="#common">Helpful Hints for Common Operations</a>
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<li><a href="#general">General Information</a>
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<ul>
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<li><a href="#stl">The C++ Standard Template Library</a>
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<li>The isa<>, cast<> and dyn_cast<> templates
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</ul>
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<li><a href="#common">Helpful Hints for Common Operations</a>
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<ul>
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<li><a href="#inspection">Basic Inspection and Traversal Routines</a>
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<ul>
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<li><a href="#iterate_function">Iterating over the <tt>BasicBlock</tt>s
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in a <tt>Function</tt></a>
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<li><a href="#iterate_basicblock">Iterating over the <tt>Instruction</tt>s
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in a <tt>BasicBlock</tt></a>
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<li><a href="#iterate_convert">Turning an iterator into a class
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pointer</a>
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</ul>
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<li><a href="#simplechanges">Making simple changes</a>
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<ul>
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<li>Creating and inserting new <tt>Instruction</tt>s
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<li>Deleting <tt>Instruction</tt>s
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<li>Replacing an <tt>Instruction</tt> with another <tt>Value</tt>
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</ul>
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<!--
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<li>Working with the Control Flow Graph
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<ul>
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<li>Accessing predecessors and successors of a <tt>BasicBlock</tt>
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<li>
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<li>
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</ul>
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-->
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<li>Useful LLVM APIs
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<ul>
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<li>isa<>, cast<>, and dyn_cast<> templates
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<!--
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<li>The general graph API
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<li>The <tt>InstVisitor</tt> template
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<li>The DEBUG() macro
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<li>The <tt>Statistic</tt> template
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-->
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</ul>
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<!--
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<li>Useful related topics
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<ul>
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<li>The <tt>-time-passes</tt> option
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<li>How to use the LLVM Makefile system
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<li>How to write a regression test
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<li>
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</ul>
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-->
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</ul>
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<li><a href="#coreclasses">The Core LLVM Class Heirarchy Reference</a>
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<ul>
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<li><a href="#Value">The <tt>Value</tt> class</a>
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@ -50,20 +94,6 @@
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<li>Important iterator invalidation semantics to be aware of
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</ul>
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<!--
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III. Useful things to know about the LLVM source base:
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III.1 Useful links that introduce the STL
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III.2 isa<>, cast<>, dyn_cast<>
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III.3 Makefiles, useful options
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III.4 How to use opt & analyze to debug stuff
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III.5 How to write a regression test
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III.6 DEBUG() and Statistics (-debug & -stats)
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III.7 The -time-passes option
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III.8 ... more as needed ...
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-->
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<p><b>Written by <a href="mailto:dhurjati@cs.uiuc.edu">Dinakar Dhurjati</a>
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and <a href="mailto:sabre@nondot.org">Chris Lattner</a></b><p>
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</ol>
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@ -146,6 +176,7 @@ href="CodingStandards.html">LLVM Coding Standards</a> guide which focuses on how
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to write maintainable code more than where to put your curly braces.<p>
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<!-- *********************************************************************** -->
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</ul><table width="100%" bgcolor="#330077" border=0 cellpadding=4 cellspacing=0>
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<tr><td align=center><font color="#EEEEFF" size=+2 face="Georgia,Palatino"><b>
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@ -153,6 +184,66 @@ to write maintainable code more than where to put your curly braces.<p>
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</b></font></td></tr></table><ul>
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<!-- *********************************************************************** -->
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This section describes how to perform some very simple transformations of LLVM
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code. This is meant to give examples of common idioms used, showing the
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practical side of LLVM transformations.<p>
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Because this is a "howto" section, you should also read about the main classes
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that you will be working with. The <a href="#coreclasses">Core LLVM Class
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Heirarchy Reference</a> contains details and descriptions of the main classes
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that you should know about.<p>
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<!-- NOTE: this section should be heavy on example code -->
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<!-- ======================================================================= -->
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</ul><table width="100%" bgcolor="#441188" border=0 cellpadding=4 cellspacing=0>
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<tr><td> </td><td width="100%">
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<font color="#EEEEFF" face="Georgia,Palatino"><b>
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<a name="inspection">Basic Inspection and Traversal Routines</a>
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</b></font></td></tr></table><ul>
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<!-- LLVM has heirarchical representation: Module, Function, BasicBlock,
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Instruction. Common patterns for all levels. -->
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<!-- _______________________________________________________________________ -->
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</ul><h4><a name="iterate_function"><hr size=0>Iterating over the
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<tt>BasicBlock</tt>s in a <tt>Function</tt> </h4><ul>
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<!-- _______________________________________________________________________ -->
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</ul><h4><a name="iterate_basicblock"><hr size=0>Iterating over the
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<tt>Instruction</tt>s in a <tt>BasicBlock</tt> </h4><ul>
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<!-- _______________________________________________________________________ -->
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</ul><h4><a name="iterate_convert"><hr size=0>Turning an iterator into a class
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pointer </h4><ul>
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<!-- dereferenced iterator = Class &
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iterators have converting constructor for 'Class *'
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iterators automatically convert to 'Class *' except in dyn_cast<> case
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-->
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<!-- ======================================================================= -->
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</ul><table width="100%" bgcolor="#441188" border=0 cellpadding=4 cellspacing=0>
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<tr><td> </td><td width="100%">
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<font color="#EEEEFF" face="Georgia,Palatino"><b>
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<a name="simplechanges">Making simple changes</a>
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</b></font></td></tr></table><ul>
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<!-- Value::replaceAllUsesWith
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User::replaceUsesOfWith
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Point out: include/llvm/Transforms/Utils/
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especially BasicBlockUtils.h with:
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ReplaceInstWithValue, ReplaceInstWithInst
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-->
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<!-- *********************************************************************** -->
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@ -980,6 +1071,6 @@ pointer to the parent Function.
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<a href="mailto:sabre@nondot.org">Chris Lattner</a></address>
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<!-- Created: Tue Aug 6 15:00:33 CDT 2002 -->
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<!-- hhmts start -->
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Last modified: Fri Sep 6 11:39:58 CDT 2002
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Last modified: Fri Sep 6 13:30:36 CDT 2002
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<!-- hhmts end -->
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</font></body></html>
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