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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [InstCombine] simplifyAllocaArraySize fails for out of range constants"
href="https://bugs.llvm.org/show_bug.cgi?id=36820">36820</a>
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<th>Summary</th>
<td>[InstCombine] simplifyAllocaArraySize fails for out of range constants
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Common Code Generator Code
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>llvm-dev@redking.me.uk
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<th>CC</th>
<td>david.majnemer@gmail.com, llvm-bugs@lists.llvm.org, spatel+llvm@rotateright.com
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<p>
<div>
<pre>Reduced from <a href="https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5223">https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5223</a>:
define void @f() {
BB:
%B51 = mul i864 65536, 65536
%B23 = sdiv i864 %B51, -1
%A9 = alloca i8, i864 %B23
br label %BB1
BB1: ; preds = %BB1, %BB
br i1 undef, label %BB1, label %BB3
BB3: ; preds = %BB3, %BB1
%G44 = getelementptr i8, i8* %A9, i1 undef
store i8* %G44, i8** undef
br label %BB3
}</pre>
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