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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ASSERTION FAILED: exec->vm().controlFlowProfiler() in functionDumpBasicBlockExecutionRanges"
href="https://bugs.webkit.org/show_bug.cgi?id=146634">146634</a>
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<th>Summary</th>
<td>ASSERTION FAILED: exec->vm().controlFlowProfiler() in functionDumpBasicBlockExecutionRanges
</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>528+ (Nightly build)
</td>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</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>JavaScriptCore
</td>
</tr>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>rhodovan.u-szeged@partner.samsung.com
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</tr>
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<th>CC</th>
<td>fpizlo@apple.com, saambarati1@gmail.com
</td>
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<th>Blocks</th>
<td>116980
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=256207" name="attach_256207" title="Test case">attachment 256207</a> <a href="attachment.cgi?id=256207&action=edit" title="Test case">[details]</a></span>
Test case
Load this test with debug or release jsc. An assertion fail will happen in debug and an immediate crash in release because of the release assert:
Array(dumpBasicBlockExecutionRanges());
Backtrace:
ASSERTION FAILED: exec->vm().controlFlowProfiler()
../../Source/JavaScriptCore/jsc.cpp(1156) : JSC::EncodedJSValue functionDumpBasicBlockExecutionRanges(JSC::ExecState*)
1 0x7ffff72d46db WTFCrash
2 0x428728
3 0x7fffb0fff0a8
[New Thread 0x7fffaf7fa700 (LWP 32247)]
[New Thread 0x7fffafffb700 (LWP 32245)]
[New Thread 0x7fffb07fc700 (LWP 32244)]
[New Thread 0x7fffb0ffd700 (LWP 32243)]
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff72d46e0 in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:321
321 *(int *)(uintptr_t)0xbbadbeef = 0;
(gdb) bt
#0 0x00007ffff72d46e0 in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:321
#1 0x0000000000428728 in functionDumpBasicBlockExecutionRanges (exec=0x7fffffffca50) at ../../Source/JavaScriptCore/jsc.cpp:1156
#2 0x00007fffb0fff0a8 in ?? ()
#3 0x00007fffffffcab0 in ?? ()
#4 0x00007ffff727e8e9 in llint_entry () from webkit/WebKitBuild/Debug/lib/libjavascriptcore_efl.so.1</pre>
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