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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang 3.9 reports a compilation warning about ENABLE_EXCEPTION_SCOPE_VERIFICATION"
href="https://bugs.webkit.org/show_bug.cgi?id=162718">162718</a>
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<th>Summary</th>
<td>Clang 3.9 reports a compilation warning about ENABLE_EXCEPTION_SCOPE_VERIFICATION
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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<th>Hardware</th>
<td>Unspecified
</td>
</tr>
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<th>OS</th>
<td>Unspecified
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>Web Template Framework
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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</tr>
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<th>Reporter</th>
<td>Hironori.Fujii@sony.com
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<div>
<pre>Clang 3.9 have introduced a new compilation warning.
<a href="https://reviews.llvm.org/D15866">https://reviews.llvm.org/D15866</a>
<a href="http://llvm.org/viewvc/llvm-project?view=revision&revision=258128">http://llvm.org/viewvc/llvm-project?view=revision&revision=258128</a>
<span class="quote">> ../../Source/JavaScriptCore/runtime/VM.h:656:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
> #if ENABLE(EXCEPTION_SCOPE_VERIFICATION)
> ^
> ../../Source/WTF/wtf/Platform.h:56:63: note: expanded from macro 'ENABLE'
> #define ENABLE(WTF_FEATURE) (defined ENABLE_##WTF_FEATURE && ENABLE_##WTF_FEATURE)
> ^
> <scratch space>:26:1: note: expanded from here
> ENABLE_EXCEPTION_SCOPE_VERIFICATION
> ^
> ../../Source/WTF/wtf/Platform.h:899:47: note: expanded from macro 'ENABLE_EXCEPTION_SCOPE_VERIFICATION'
> #define ENABLE_EXCEPTION_SCOPE_VERIFICATION (!defined(NDEBUG))
> ^
> In file included from ../../Source/JavaScriptCore/llint/LLIntOffsetsExtractor.cpp:28:
> In file included from ../../Source/JavaScriptCore/bytecode/ArrayProfile.h:29:
> In file included from ../../Source/JavaScriptCore/runtime/JSArray.h:24:
> In file included from ../../Source/JavaScriptCore/runtime/ButterflyInlines.h:28:
> In file included from ../../Source/JavaScriptCore/runtime/ArrayStorage.h:33:
> In file included from ../../Source/JavaScriptCore/runtime/Structure.h:28:
> In file included from ../../Source/JavaScriptCore/runtime/ClassInfo.h:25:
> In file included from ../../Source/JavaScriptCore/interpreter/CallFrame.h:29:</span ></pre>
</div>
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