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diff --git a/docs/manual/optimizations.html b/docs/manual/optimizations.html deleted file mode 100644 index 4bb18c3..0000000 --- a/docs/manual/optimizations.html +++ /dev/null @@ -1,202 +0,0 @@ -<!doctype html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> -<html> -<head> -<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> -<meta http-equiv="content-style-type" content="text/css"> -<link rel="stylesheet" type="text/css" href="style.css"> -<title>Optimizations</title> -</head> -<body> - -<script type="text/javascript" language="JavaScript"> -<!-- -if (window.self==window.top) - document.write('<a class="largebutton" target="_top" href="../index.html#manual/optimizations.html">ProGuard index</a> <a class="largebutton" target="_top" href="http://www.saikoa.com/dexguard">DexGuard</a> <a class="largebutton" target="_top" href="http://www.saikoa.com/">Saikoa</a> <a class="largebutton" target="other" href="http://sourceforge.net/projects/proguard/">Sourceforge</a>') -//--> -</script> -<noscript> -<a class="largebutton" target="_top" href="../index.html#manual/optimizations.html">ProGuard index</a> -<a class="largebutton" target="_top" href="http://www.saikoa.com/dexguard">DexGuard</a> -<a class="largebutton" target="_top" href="http://www.saikoa.com/">Saikoa</a> -<a class="largebutton" target="other" href="http://sourceforge.net/projects/proguard/">Sourceforge</a> -</noscript> - -<h2>Optimizations</h2> - -The optimization step of ProGuard can be switched off with the -<a href="usage.html#dontoptimize"><code>-dontoptimize</code></a> option. For -more fine-grained control over individual optimizations, experts can use the -<a href="usage.html#optimizations"><code>-optimizations</code></a> option, -with a filter based on the optimization names listed below. The filter works -like any <a href="usage.html#filters">filter</a> in ProGuard. -<p> - -The following wildcards are supported: - -<table cellspacing="10"> -<tr><td valign="top"><code><b>?</b></code></td> - <td>matches any single character in an optimization name.</td></tr> -<tr><td valign="top"><code><b>*</b></code></td> - <td>matches any part of an optimization name.</td></tr> -</table> - -An optimization that is preceded by an exclamation mark '<b>!</b>' is -<i>excluded</i> from further attempts to match with <i>subsequent</i> -optimization names in the filter. Make sure to specify filters correctly, -since they are not checked for potential typos. -<p> - -For example, -"<code>code/simplification/variable,code/simplification/arithmetic</code>" -only performs the two specified peephole optimizations. -<p> - -For example, "<code>!method/propagation/*</code>" performs all optimizations, -except the ones that propagate values between methods. -<p> - -For example, -"<code>!code/simplification/advanced,code/simplification/*</code>" only -performs all peephole optimizations. -<p> -Some optimizations necessarily imply other optimizations. These are then -indicated. Note that the list is likely to change over time, as optimizations -are added and reorganized. -<p> - -<dl> -<dt><code><b>class/marking/final</b></code></dt> -<dd>Marks classes as final, whenever possible.</dd> - -<dt><code><b>class/unboxing/enum</b></code></dt> -<dd>Simplifies enum types to integer constants, whenever possible.</dd> - -<dt><code><b>class/merging/vertical</b></code></dt> -<dd>Merges classes vertically in the class hierarchy, whenever possible.</dd> - -<dt><code><b>class/merging/horizontal</b></code></dt> -<dd>Merges classes horizontally in the class hierarchy, whenever possible.</dd> - -<dt><div>(⇒ <code>code/removal/advanced</code>)</div> - <code><b>field/removal/writeonly</b></code></dt> -<dd>Removes write-only fields.</dd> - -<dt><code><b>field/marking/private</b></code></dt> -<dd>Marks fields as private, whenever possible.</dd> - -<dt><div>(⇒ <code>code/simplification/advanced</code>)</div> - <code><b>field/propagation/value</b></code></dt> -<dd>Propagates the values of fields across methods.</dd> - -<dt><code><b>method/marking/private</b></code></dt> -<dd>Marks methods as private, whenever possible (<i>devirtualization</i>).</dd> - -<dt><div>(⇒ <code>code/removal/advanced</code>)</div> - <code><b>method/marking/static</b></code></dt> -<dd>Marks methods as static, whenever possible (<i>devirtualization</i>).</dd> - -<dt><code><b>method/marking/final</b></code></dt> -<dd>Marks methods as final, whenever possible.</dd> - -<dt><div>(⇒ <code>code/removal/advanced</code>)</div> - <code><b>method/removal/parameter</b></code></dt> -<dd>Removes unused method parameters.</dd> - -<dt><div>(⇒ <code>code/simplification/advanced</code>)</div> - <code><b>method/propagation/parameter</b></code></dt> -<dd>Propagates the values of method parameters from method invocations to - the invoked methods.</dd> - -<dt><div>(⇒ <code>code/simplification/advanced</code>)</div> - <code><b>method/propagation/returnvalue</b></code></dt> -<dd>Propagates the values of method return values from methods to their - invocations.</dd> - -<dt><code><b>method/inlining/short</b></code></dt> -<dd>Inlines short methods.</dd> - -<dt><code><b>method/inlining/unique</b></code></dt> -<dd>Inlines methods that are only called once.</dd> - -<dt><code><b>method/inlining/tailrecursion</b></code></dt> -<dd>Simplifies tail recursion calls, whenever possible.</dd> - -<dt><code><b>code/merging</b></code></dt> -<dd>Merges identical blocks of code by modifying branch targets.</dd> - -<dt><code><b>code/simplification/variable</b></code></dt> -<dd>Performs peephole optimizations for variable loading and storing.</dd> - -<dt><code><b>code/simplification/arithmetic</b></code></dt> -<dd>Performs peephole optimizations for arithmetic instructions.</dd> - -<dt><code><b>code/simplification/cast</b></code></dt> -<dd>Performs peephole optimizations for casting operations.</dd> - -<dt><code><b>code/simplification/field</b></code></dt> -<dd>Performs peephole optimizations for field loading and storing.</dd> - -<dt><div>(⇒ <code>code/removal/simple</code>)</div> - <code><b>code/simplification/branch</b></code></dt> -<dd>Performs peephole optimizations for branch instructions.</dd> - -<dt><code><b>code/simplification/string</b></code></dt> -<dd>Performs peephole optimizations for constant strings.</dd> - -<dt><div>(<i>best used with</i> <code>code/removal/advanced</code>)</div> - <code><b>code/simplification/advanced</b></code></dt> -<dd>Simplifies code based on control flow analysis and data flow - analysis.</dd> - -<dt><div>(⇒ <code>code/removal/exception</code>)</div> - <code><b>code/removal/advanced</b></code></dt> -<dd>Removes dead code based on control flow analysis and data flow - analysis.</dd> - -<dt><div>(⇒ <code>code/removal/exception</code>)</div> - <code><b>code/removal/simple</b></code></dt> -<dd>Removes dead code based on a simple control flow analysis.</dd> - -<dt><code><b>code/removal/variable</b></code></dt> -<dd>Removes unused variables from the local variable frame.</dd> - -<dt><code><b>code/removal/exception</b></code></dt> -<dd>Removes exceptions with empty try blocks.</dd> - -<dt><code><b>code/allocation/variable</b></code></dt> -<dd>Optimizes variable allocation on the local variable frame.</dd> -</dl> -<p> - -ProGuard also provides some unofficial settings to control optimizations, that -may disappear in future versions. These are Java system properties, which -can be set as JVM arguments (with <code>-D.....)</code>: -<dl> -<dt><code><b>maximum.inlined.code.length</b></code> (default = 8 bytes)</dt> -<dd>Specifies the maximum code length (expressed in bytes) of short methods - that are eligible to be inlined. Inlining methods that are too long may - unnecessarily inflate the code size.</dd> - -<dt><code><b>maximum.resulting.code.length</b></code> (default = 8000 bytes - for JSE, 2000 bytes for JME)</dt> -<dd>Specifies the maximum resulting code length (expressed in bytes) allowed - when inlining methods. Many Java virtual machines do not apply just-in-time - compilation to methods that are too long, so it's important not to let them - grow too large.</dd> - -<dt><code><b>optimize.conservatively</b></code> (default = unset)</dt> -<dd>Allows input code with ordinary instructions intentionally throwing - <code>NullPointerException</code>, - <code>ArrayIndexOutOfBoundsException</code>, or - <code>ClassCastException</code>, without any other useful purposes. By - default, ProGuard may just discard such seemingly useless instructions, - resulting in better optimization of most common code.</dd> -</dl> - -<hr /> -<address> -Copyright © 2002-2014 -<a target="other" href="http://www.lafortune.eu/">Eric Lafortune</a> @ <a target="top" href="http://www.saikoa.com/">Saikoa</a>. -</address> -</body> -</html> |