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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/178553">178553</a></dd>
<dt>Author</dt> <dd>matthew_hanson@apple.com</dd>
<dt>Date</dt> <dd>2015-01-15 17:58:00 -0800 (Thu, 15 Jan 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Merged <a href="http://trac.webkit.org/projects/webkit/changeset/174162">r174162</a>. rdar://problem/19451961</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari6005branchSourceJavaScriptCoreChangeLog">branches/safari-600.5-branch/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#branchessafari6005branchSourceJavaScriptCoreJavaScriptCorevcxprojLLIntLLIntAssemblybuildLLIntAssemblypl">branches/safari-600.5-branch/Source/JavaScriptCore/JavaScriptCore.vcxproj/LLInt/LLIntAssembly/build-LLIntAssembly.pl</a></li>
<li><a href="#branchessafari6005branchSourceWTFChangeLog">branches/safari-600.5-branch/Source/WTF/ChangeLog</a></li>
<li><a href="#branchessafari6005branchSourceWTFwtfPlatformh">branches/safari-600.5-branch/Source/WTF/wtf/Platform.h</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari6005branchSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-600.5-branch/Source/JavaScriptCore/ChangeLog (178552 => 178553)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.5-branch/Source/JavaScriptCore/ChangeLog        2015-01-16 01:57:56 UTC (rev 178552)
+++ branches/safari-600.5-branch/Source/JavaScriptCore/ChangeLog        2015-01-16 01:58:00 UTC (rev 178553)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2015-01-15  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
+        Merge r174162. rdar://problem/19451961
+
+    2014-10-01  Brent Fulgham  &lt;bfulgham@apple.com&gt;
+
+            [Win] 32-bit JavaScriptCore should limit itself to the C loop
+            https://bugs.webkit.org/show_bug.cgi?id=137304
+            &lt;rdar://problem/18375370&gt;
+
+            Reviewed by Michael Saboff.
+
+            * JavaScriptCore.vcxproj/LLInt/LLIntAssembly/build-LLIntAssembly.pl:
+            Use the C loop for 32-bit builds.
+
</ins><span class="cx"> 2015-01-14  Dana Burkart  &lt;dburkart@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Merged r173318. &lt;rdar://problem/19424143&gt;
</span></span></pre></div>
<a id="branchessafari6005branchSourceJavaScriptCoreJavaScriptCorevcxprojLLIntLLIntAssemblybuildLLIntAssemblypl"></a>
<div class="modfile"><h4>Modified: branches/safari-600.5-branch/Source/JavaScriptCore/JavaScriptCore.vcxproj/LLInt/LLIntAssembly/build-LLIntAssembly.pl (178552 => 178553)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.5-branch/Source/JavaScriptCore/JavaScriptCore.vcxproj/LLInt/LLIntAssembly/build-LLIntAssembly.pl        2015-01-16 01:57:56 UTC (rev 178552)
+++ branches/safari-600.5-branch/Source/JavaScriptCore/JavaScriptCore.vcxproj/LLInt/LLIntAssembly/build-LLIntAssembly.pl        2015-01-16 01:58:00 UTC (rev 178553)
</span><span class="lines">@@ -62,7 +62,13 @@
</span><span class="cx"> close(OUTPUTFILENAME);
</span><span class="cx"> 
</span><span class="cx"> # If you want to enable the LLINT C loop, set OUTPUTFILENAME to &quot;LLIntAssembly.h&quot;
</span><del>-my $OUTPUTFILENAME = File::Spec-&gt;catfile($DERIVED_SOURCES_DIR, 'LowLevelInterpreterWin.asm');
</del><ins>+# We only want the C loop for 32-bit Windows so we can continue to support old CPUs.
+my $OUTPUTFILENAME;
+if (&quot;$ARGV[3]&quot; eq &quot;32&quot;) {
+    $OUTPUTFILENAME = File::Spec-&gt;catfile($DERIVED_SOURCES_DIR, 'LLIntAssembly.h');
+} else {
+    $OUTPUTFILENAME = File::Spec-&gt;catfile($DERIVED_SOURCES_DIR, 'LowLevelInterpreterWin.asm');
+}
</ins><span class="cx"> 
</span><span class="cx"> my $offlineAsm = File::Spec-&gt;catfile($XSRCROOT, 'offlineasm', 'asm.rb');
</span><span class="cx"> my $lowLevelInterpreter = File::Spec-&gt;catfile($XSRCROOT, 'llint', 'LowLevelInterpreter.asm');
</span></span></pre></div>
<a id="branchessafari6005branchSourceWTFChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-600.5-branch/Source/WTF/ChangeLog (178552 => 178553)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.5-branch/Source/WTF/ChangeLog        2015-01-16 01:57:56 UTC (rev 178552)
+++ branches/safari-600.5-branch/Source/WTF/ChangeLog        2015-01-16 01:58:00 UTC (rev 178553)
</span><span class="lines">@@ -1,3 +1,17 @@
</span><ins>+2015-01-15  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
+        Merge r174162. rdar://problem/19451961
+
+    2014-10-01  Brent Fulgham  &lt;bfulgham@apple.com&gt;
+
+            [Win] 32-bit JavaScriptCore should limit itself to the C loop
+            https://bugs.webkit.org/show_bug.cgi?id=137304
+            &lt;rdar://problem/18375370&gt;
+
+            Reviewed by Michael Saboff.
+
+            * wtf/Platform.h: Force the C loop when building for 32-bit Windows.
+
</ins><span class="cx"> 2015-01-14  Dana Burkart  &lt;dburkart@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Merged r173318. &lt;rdar://problem/19424143&gt;
</span></span></pre></div>
<a id="branchessafari6005branchSourceWTFwtfPlatformh"></a>
<div class="modfile"><h4>Modified: branches/safari-600.5-branch/Source/WTF/wtf/Platform.h (178552 => 178553)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.5-branch/Source/WTF/wtf/Platform.h        2015-01-16 01:57:56 UTC (rev 178552)
+++ branches/safari-600.5-branch/Source/WTF/wtf/Platform.h        2015-01-16 01:58:00 UTC (rev 178553)
</span><span class="lines">@@ -718,6 +718,12 @@
</span><span class="cx"> #define ENABLE_CONCURRENT_JIT 1
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><ins>+/* We do not want to allow LLInt on 32-bit Windows so that we can support some ancient
+   CPUs that do not have SSE2 support */
+#if OS(WINDOWS) &amp;&amp; !CPU(X86_64)
+#define ENABLE_LLINT_C_LOOP 1
+#endif
+
</ins><span class="cx"> /* Disable the JIT if we force the LLInt C Loop */
</span><span class="cx"> #if defined(ENABLE_LLINT_C_LOOP) &amp;&amp; ENABLE_LLINT_C_LOOP
</span><span class="cx"> #undef ENABLE_JIT
</span></span></pre>
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