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First complete version. The details of configuration are now correctly
stated. PLEASE REVIEW THIS DOCUMENT NOW! :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15988 91177308-0d34-0410-b5e6-96231b3b80d8
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Reid Spencer
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@ -29,8 +29,14 @@
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<li><a href="#actions">Actions</a></li>
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</ol>
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</li>
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<li><a href="#details">Details</a>
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<li><a href="#configuration">Configuration</a>
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<ol>
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<li><a href="#overview">Overview</a></li>
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<li><a href="#filetypes">Configuration Files</a></li>
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<li><a href="#syntax">Syntax</a></li>
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<li><a href="#substitutions">Substitutions</a></li>
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<li><a href="#sample">Sample Config File</a></li>
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</ol>
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<li><a href="#glossary">Glossary</a>
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</ol>
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<div class="doc_author">
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@ -261,12 +267,6 @@
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</ul>
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</div>
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<!-- *********************************************************************** -->
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<div class="doc_section"><a name="details">Details</a></div>
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<!-- *********************************************************************** -->
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<div class="doc_text">
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</div>
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<!-- *********************************************************************** -->
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<div class="doc_section"><a name="configuration">Configuration</a></div>
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<!-- *********************************************************************** -->
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@ -360,6 +360,9 @@ optimization.</p>
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<li>If the LLVM installation directory (typically <tt>/usr/local/llvm</tt>
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contains a sub-directory named <tt>etc</tt> then that directory will be
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tried last.</li>
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<li>A standard "system" directory will be searched next. This is typically
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<tt>/etc/llvm</tt> on UNIX™ and <tt>C:\WINNT</tt> on Microsoft
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Windows™.</li>
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<li>If the configuration file sought still can't be found, <tt>llvmc</tt>
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will print an error message and exit.</li>
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</ol>
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@ -393,8 +396,11 @@ optimization.</p>
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compatible with Java's property files. Here are the syntax rules:</p>
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<ul>
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<li>The file encoding is ASCII.</li>
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<li>The file is line oriented. There should be one configuration item per
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line. Lines are terminated by the newline character (0x0A).</li>
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<li>The file is line oriented. There should be one configuration definition
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per line. Lines are terminated by the newline character (0x0A).</li>
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<li>A backslash (<tt>\</tt>) before a newline causes the newline to be
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ignored. This is useful for line continuation of long definitions. A
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backslash anywhere else is recognized as a backslash.</li>
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<li>A configuration item consists of a name, an <tt>=</tt> and a value.</li>
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<li>A name consists of a sequence of identifiers separated by period.</li>
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<li>An identifier consists of specific keywords made up of only lower case
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@ -435,123 +441,365 @@ optimization.</p>
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default value. Each identifier may appear as all lower case, first letter
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capitalized or all upper case.</p>
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<table>
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<tr>
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<th>Name</th>
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<th>Value Type</th>
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<th>Description</th>
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<th>Default</th>
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</tr>
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<tr><td colspan="4"><h4>LANG ITEMS</h4></td></tr>
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<tr>
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<td><b>lang.name</b></td>
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<td>string</td>
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<td class="td_left">Provides the common name for a language definition.
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For example "C++", "Pascal", "FORTRAN", etc.</td>
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<td><i>blank</i></td>
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</tr>
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<tr>
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<td><b>lang.opt1</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when <tt>-O1</tt> is
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specified on the <tt>llvmc</tt> command line.</td>
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<td><tt>-simplifycfg -instcombine -mem2reg</tt></td>
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</tr>
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<tr>
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<td><b>lang.opt2</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when <tt>-O2</tt> is
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specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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</tr>
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<tr>
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<td><b>lang.opt3</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when <tt>-O3</tt> is
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specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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</tr>
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<tr>
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<td><b>lang.opt4</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when <tt>-O4</tt> is
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specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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</tr>
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<tr>
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<td><b>lang.opt5</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when <tt>-O5</tt> is
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specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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</tr>
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<tr><td colspan="4"><h4>PREPROCESSOR ITEMS</h4></td></tr>
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<tr>
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<td><b>preprocessor.command</b></td>
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<td>command</td>
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<td class="td_left">This provides the command prototype that will be used
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to run the preprocessor. Valid substitutions are <tt>@in@</tt> for the
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input file and <tt>@out@</tt> for the output file. This is generally only
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used with the <tt>-E</tt> option.</td>
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<td><blank></td>
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</tr>
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<tr>
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<td><b>preprocessor.required</b></td>
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<td>boolean</td>
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<td class="td_left">This item specifies whether the pre-processing phase
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is required by the language. If the value is true, then the
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<tt>preprocessor.command</tt> value must not be blank. With this option,
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<tt>llvmc</tt> will always run the preprocessor as it assumes that the
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translation and optimization phases don't know how to pre-process their
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input.</td>
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<td>false</td>
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</tr>
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<tr><td colspan="4"><h4>TRANSLATOR ITEMS</h4></td></tr>
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<tr>
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<td><b>translator.command</b></td>
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<td>command</td>
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<td class="td_left">This provides the command prototype that will be used
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to run the translator. Valid substitutions are <tt>@in@</tt> for the
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input file and <tt>@out@</tt> for the output file.</td>
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<td><blank></td>
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</tr>
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<tr>
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<td><b>translator.output</b></td>
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<td><tt>native</tt>, <tt>bytecode</tt> or <tt>assembly</tt></td>
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<td class="td_left">This item specifies the kind of output the language's
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translator generates.</td>
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<td><tt>bytecode</tt></td>
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</tr>
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<tr>
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<td><b>translator.preprocesses</b></td>
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<td>boolean</td>
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<td class="td_left">Indicates that the translator also preprocesses. If this is true, then
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<tt>llvmc</tt> will skip the pre-processing phase whenever the final
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phase is not pre-processing.</td>
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<td><tt>false</tt></td>
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</tr>
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<tr>
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<td><b>translator.optimizers</b></td>
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<td>boolean</td>
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<td class="td_left">Indicates that the translator also optimizes. If this is true, then
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<tt>llvmc</tt> will skip the optimization phase whenever the final phase
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is optimization or later.</td>
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<td><tt>false</tt></td>
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</tr>
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<tr>
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<td><b>translator.groks_dash_o</b></td>
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<td>boolean</td>
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<td class="td_left">Indicates that the translator understands the <i>intent</i> of the
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various <tt>-O</tt><i>n</i> options to <tt>llvmc</tt>. This will cause the
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<tt>-O</tt><i>n</i> option to be based to the translator instead of the
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equivalent options provided by <tt>lang.opt</tt><i>n</i>.</td>
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<td><tt>false</tt></td>
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</tr>
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<tr><td colspan="4"><h4>OPTIMIZER ITEMS</h4></td></tr>
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<tr><td colspan="4"><h4>ASSEMBLER ITEMS</h4></td></tr>
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<tr><td colspan="4"><h4>LINKER ITEMS</h4></td></tr>
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<tbody>
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<tr>
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<th>Name</th>
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<th>Value Type</th>
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<th>Description</th>
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<th>Default</th>
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</tr>
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<tr><td colspan="4"><h4>LANG ITEMS</h4></td></tr>
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<tr>
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<td><b>lang.name</b></td>
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<td>string</td>
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<td class="td_left">Provides the common name for a language definition.
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For example "C++", "Pascal", "FORTRAN", etc.</td>
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<td><i>blank</i></td>
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</tr>
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<tr>
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<td><b>lang.opt1</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when
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<tt>-O1</tt> is specified on the <tt>llvmc</tt> command line.</td>
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||||
<td><tt>-simplifycfg -instcombine -mem2reg</tt></td>
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</tr>
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||||
<tr>
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||||
<td><b>lang.opt2</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when
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<tt>-O2</tt> is specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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</tr>
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<tr>
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<td><b>lang.opt3</b></td>
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<td>string</td>
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<td class="td_left">Specifies the parameters to give the optimizer when
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<tt>-O3</tt> is specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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</tr>
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||||
<tr>
|
||||
<td><b>lang.opt4</b></td>
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||||
<td>string</td>
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||||
<td class="td_left">Specifies the parameters to give the optimizer when
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||||
<tt>-O4</tt> is specified on the <tt>llvmc</tt> command line.</td>
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<td><i>TBD</i></td>
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||||
</tr>
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||||
<tr>
|
||||
<td><b>lang.opt5</b></td>
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||||
<td>string</td>
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||||
<td class="td_left">Specifies the parameters to give the optimizer when
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||||
<tt>-O5</tt> is specified on the <tt>llvmc</tt> command line.</td>
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||||
<td><i>TBD</i></td>
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</tr>
|
||||
<tr><td colspan="4"><h4>PREPROCESSOR ITEMS</h4></td></tr>
|
||||
<tr>
|
||||
<td><b>preprocessor.command</b></td>
|
||||
<td>command</td>
|
||||
<td class="td_left">This provides the command prototype that will be used
|
||||
to run the preprocessor. This is generally only used with the
|
||||
<tt>-E</tt> option.</td>
|
||||
<td><blank></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>preprocessor.required</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">This item specifies whether the pre-processing phase
|
||||
is required by the language. If the value is true, then the
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||||
<tt>preprocessor.command</tt> value must not be blank. With this option,
|
||||
<tt>llvmc</tt> will always run the preprocessor as it assumes that the
|
||||
translation and optimization phases don't know how to pre-process their
|
||||
input.</td>
|
||||
<td>false</td>
|
||||
</tr>
|
||||
<tr><td colspan="4"><h4>TRANSLATOR ITEMS</h4></td></tr>
|
||||
<tr>
|
||||
<td><b>translator.command</b></td>
|
||||
<td>command</td>
|
||||
<td class="td_left">This provides the command prototype that will be used
|
||||
to run the translator. Valid substitutions are <tt>@in@</tt> for the
|
||||
input file and <tt>@out@</tt> for the output file.</td>
|
||||
<td><blank></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>translator.output</b></td>
|
||||
<td><tt>native</tt>, <tt>bytecode</tt> or <tt>assembly</tt></td>
|
||||
<td class="td_left">This item specifies the kind of output the language's
|
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translator generates.</td>
|
||||
<td><tt>bytecode</tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>translator.preprocesses</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">Indicates that the translator also preprocesses. If
|
||||
this is true, then <tt>llvmc</tt> will skip the pre-processing phase
|
||||
whenever the final phase is not pre-processing.</td>
|
||||
<td><tt>false</tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>translator.optimizers</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">Indicates that the translator also optimizes. If
|
||||
this is true, then <tt>llvmc</tt> will skip the optimization phase
|
||||
whenever the final phase is optimization or later.</td>
|
||||
<td><tt>false</tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>translator.groks_dash_o</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">Indicates that the translator understands the
|
||||
<i>intent</i> of the various <tt>-O</tt><i>n</i> options to
|
||||
<tt>llvmc</tt>. This will cause the <tt>-O</tt><i>n</i> option to be
|
||||
given to the translator instead of the equivalent options provided by
|
||||
<tt>lang.opt</tt><i>n</i>.</td>
|
||||
<td><tt>false</tt></td>
|
||||
</tr>
|
||||
<tr><td colspan="4"><h4>OPTIMIZER ITEMS</h4></td></tr>
|
||||
<tr>
|
||||
<td><b>optimizer.command</b></td>
|
||||
<td>command</td>
|
||||
<td class="td_left">This provides the command prototype that will be used
|
||||
to run the optimizer. Valid substitutions are <tt>@in@</tt> for the
|
||||
input file and <tt>@out@</tt> for the output file.</td>
|
||||
<td><blank></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>optimizer.output</b></td>
|
||||
<td><tt>native</tt>, <tt>bytecode</tt> or <tt>assembly</tt></td>
|
||||
<td class="td_left">This item specifies the kind of output the language's
|
||||
optimizer generates.</td>
|
||||
<td><tt>bytecode</tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>optimizer.preprocesses</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">Indicates that the optimizer also preprocesses. If
|
||||
this is true, then <tt>llvmc</tt> will skip the pre-processing phase
|
||||
whenever the final phase is optimization or later.</td>
|
||||
<td><tt>false</tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>optimizer.translates</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">Indicates that the optimizer also translates. If
|
||||
this is true, then <tt>llvmc</tt> will skip the translation phase
|
||||
whenever the final phase is optimization or later.</td>
|
||||
<td><tt>false</tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>optimizer.groks_dash_o</b></td>
|
||||
<td>boolean</td>
|
||||
<td class="td_left">Indicates that the translator understands the
|
||||
<i>intent</i> of the various <tt>-O</tt><i>n</i> options to
|
||||
<tt>llvmc</tt>. This will cause the <tt>-O</tt><i>n</i> option to be
|
||||
given to the translator instead of the equivalent options provided by
|
||||
<tt>lang.opt</tt><i>n</i>.</td>
|
||||
<td><tt>false</tt></td>
|
||||
</tr>
|
||||
<tr><td colspan="4"><h4>ASSEMBLER ITEMS</h4></td></tr>
|
||||
<tr>
|
||||
<td><b>assembler.command</b></td>
|
||||
<td>command</td>
|
||||
<td class="td_left">This provides the command prototype that will be used
|
||||
to run the assembler. Valid substitutions are <tt>@in@</tt> for the
|
||||
input file and <tt>@out@</tt> for the output file.</td>
|
||||
<td><blank></td>
|
||||
</tr>
|
||||
<tr><td colspan="4"><h4>LINKER ITEMS</h4></td></tr>
|
||||
<tr>
|
||||
<td><b>linker.libs</b></td>
|
||||
<td>library names</td>
|
||||
<td class="td_left">This provides the list of runtime libraries that the
|
||||
source language <i>could</i> link with. In general, the libraries
|
||||
needed will be encoded into the LLVM Assembly or bytecode file.
|
||||
However, this list tells <tt>llvmc</tt> the names of the ones that
|
||||
apply to this source language. The names provided here should be
|
||||
unadorned with no suffix and no "lib" prefix.
|
||||
</td>
|
||||
<td><blank></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>linker.lib_paths</b></td>
|
||||
<td>Fully qualifed local path names</td>
|
||||
<td class="td_left">This item provides a list of potential directories
|
||||
in which the source language's runtime libraries might be located. If
|
||||
a given object file compiled with this language's translator is linked
|
||||
then those libraries will be given as <tt>-L</tt> options to the
|
||||
linker.</td>
|
||||
<td><tt><blank></tt></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><b>linker.output</b></td>
|
||||
<td><tt>native</tt>, <tt>bytecode</tt> or <tt>assembly</tt></td>
|
||||
<td class="td_left">This item specifies the kind of output the language's
|
||||
translator generates.</td>
|
||||
<td><tt>bytecode</tt></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<!-- _______________________________________________________________________ -->
|
||||
<div class="doc_subsection"><a name="substitutions">Substitutions</a></div>
|
||||
<div class="doc_text">
|
||||
<p>On any configruation item that ends in <tt>command</tt>, you must
|
||||
specify substitution tokens. Substitution tokens begin and end with a percent
|
||||
sign (<tt>%</tt>) and are replaced by the corresponding text. Any substitution
|
||||
token may be given on any <tt>command</tt> line but some are more useful than
|
||||
others. In particular each command <em>should</em> have both an <tt>%in%</tt>
|
||||
and an <tt>%out%</tt> substittution. The table below provides definitions of
|
||||
each of the allowed substitution tokens.</p>
|
||||
<table>
|
||||
<tbody>
|
||||
<tr>
|
||||
<th>Substitution Token</th>
|
||||
<th>Replacement Description</th>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><tt>%args%</tt></td>
|
||||
<td class="td_left">Replaced with all the tool-specific arguments given
|
||||
to <tt>llvmc</tt> via the <tt>-T</tt> set of options. This just allows
|
||||
you to place these arguments in the correct place on the command line.
|
||||
If the %args% option does not appear on your command line, then you
|
||||
are explicitly disallowing the <tt>-T</tt> option for your tool.
|
||||
</td>
|
||||
<tr>
|
||||
<td><tt>%in%</tt></td>
|
||||
<td class="td_left">Replaced with the full path of the input file. You
|
||||
needn't worry about the cascading of file names. <tt>llvmc</tt> will
|
||||
create temporary files and ensure that the output of one phase is the
|
||||
input to the next phase.</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><tt>%opt%</tt></td>
|
||||
<td class="td_left">Replaced with the optimization options for the
|
||||
tool. If the tool understands the <tt>-O</tt> options then that will
|
||||
be passed. Otherwise, the <tt>lang.optN</tt> series of configuration
|
||||
items will specify which arguments are to be given.</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><tt>%out%</tt></td>
|
||||
<td class="td_left">Replaced with the full path of the output file.
|
||||
Note that this is not necessarily the output file specified with the
|
||||
<tt>-o</tt> option on <tt>llvmc</tt>'s command line. It might be a
|
||||
temporary file that will be passed to a subsequent phase's input.
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><tt>%stats%</tt></td>
|
||||
<td class="td_left">If your command accepts the <tt>-stats</tt> option,
|
||||
use this substitution token. If the user requested <tt>-stats</tt>
|
||||
from the <tt>llvmc</tt> command line then this token will be replaced
|
||||
with <tt>-stats</tt>, otherwise it will be ignored.
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><tt>%target%</tt></td>
|
||||
<td class="td_left">Replaced with the name of the target "machine" for
|
||||
which code should be generated. The value used here is taken from the
|
||||
<tt>llvmc</tt> option <tt>-march</tt>.
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><tt>%time%</tt></td>
|
||||
<td class="td_left">If your command accepts the <tt>-time-passes</tt>
|
||||
option, use this substitution token. If the user requested
|
||||
<tt>-time-passes</tt> from the <tt>llvmc</tt> command line then this
|
||||
token will be replaced with <tt>-time-passes</tt>, otherwise it will
|
||||
be ignored.
|
||||
</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<!-- _______________________________________________________________________ -->
|
||||
<div class="doc_subsection"><a name="sample">Sample Config File</a></div>
|
||||
<div class="doc_text">
|
||||
<p>Since an example is always instructive, here's how the Stacker language
|
||||
configuration file looks.</p>
|
||||
<pre><tt>
|
||||
# Stacker Configuration File For llvmc
|
||||
|
||||
##########################################################
|
||||
# Language definitions
|
||||
##########################################################
|
||||
lang.name=Stacker
|
||||
lang.opt1=-simplifycfg -instcombine -mem2reg
|
||||
lang.opt2=-simplifycfg -instcombine -mem2reg -load-vn \
|
||||
-gcse -dse -scalarrepl -sccp
|
||||
lang.opt3=-simplifycfg -instcombine -mem2reg -load-vn \
|
||||
-gcse -dse -scalarrepl -sccp -branch-combine -adce \
|
||||
-globaldce -inline -licm -pre
|
||||
lang.opt4=-simplifycfg -instcombine -mem2reg -load-vn \
|
||||
-gcse -dse -scalarrepl -sccp -ipconstprop \
|
||||
-branch-combine -adce -globaldce -inline -licm -pre
|
||||
lang.opt5=-simplifycfg -instcombine -mem2reg --load-vn \
|
||||
-gcse -dse scalarrepl -sccp -ipconstprop \
|
||||
-branch-combine -adce -globaldce -inline -licm -pre \
|
||||
-block-placement
|
||||
|
||||
##########################################################
|
||||
# Pre-processor definitions
|
||||
##########################################################
|
||||
|
||||
# Stacker doesn't have a preprocessor but the following
|
||||
# allows the -E option to be supported
|
||||
preprocessor.command=cp %in% %out%
|
||||
preprocessor.required=false
|
||||
|
||||
##########################################################
|
||||
# Translator definitions
|
||||
##########################################################
|
||||
|
||||
# To compile stacker source, we just run the stacker
|
||||
# compiler with a default stack size of 2048 entries.
|
||||
translator.command=stkrc -s 2048 %in% -o %out% %time% \
|
||||
%stats% %args%
|
||||
|
||||
# stkrc doesn't preprocess but we set this to true so
|
||||
# that we don't run the cp command by default.
|
||||
translator.preprocesses=true
|
||||
|
||||
# The translator is required to run.
|
||||
translator.required=true
|
||||
|
||||
# stkrc doesn't do any optimization, it just translates
|
||||
translator.optimizes=no
|
||||
|
||||
# stkrc doesn't handle the -On options
|
||||
translator.groks_dash_O=no
|
||||
|
||||
##########################################################
|
||||
# Optimizer definitions
|
||||
##########################################################
|
||||
|
||||
# For optimization, we use the LLVM "opt" program
|
||||
optimizer.command=opt %in% -o %out% %opt% %time% %stats% \
|
||||
%args%
|
||||
|
||||
# opt doesn't (yet) grok -On
|
||||
optimizer.groks_dash_O=no
|
||||
|
||||
# opt doesn't translate
|
||||
optimizer.translates = no
|
||||
|
||||
# opt doesn't preprocess
|
||||
optimizer.preprocesses=no
|
||||
|
||||
##########################################################
|
||||
# Assembler definitions
|
||||
##########################################################
|
||||
assembler.command=llc %in% -o %out% %target% \
|
||||
"-regalloc=linearscan" %time% %stats%
|
||||
|
||||
##########################################################
|
||||
# Linker definitions
|
||||
##########################################################
|
||||
linker.libs=stkr_runtime
|
||||
linker.paths=
|
||||
</tt></pre>
|
||||
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
<div class="doc_section"><a name="glossary">Glossary</a></div>
|
||||
<!-- *********************************************************************** -->
|
||||
|
||||
Loading…
Reference in New Issue
Block a user