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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Crash in Early-CSE with constants with leading empty structs"
href="http://llvm.org/bugs/show_bug.cgi?id=22595">22595</a>
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<th>Summary</th>
<td>Crash in Early-CSE with constants with leading empty structs
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>3.6
</td>
</tr>
<tr>
<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>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>bsteinbr@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=13867" name="attach_13867" title="IR that causes a crash in Early-CSE">attachment 13867</a> <a href="attachment.cgi?id=13867&action=edit" title="IR that causes a crash in Early-CSE">[details]</a></span>
IR that causes a crash in Early-CSE
The attached testcase causes a crash in Early-CSE.
include/llvm/IR/DerivedTypes.h:291: llvm::Type*
llvm::StructType::getElementType(unsigned int) const: Assertion `N <
NumContainedTys && "Element number out of range!"' failed.
0 opt 0x000000000145dc52 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 opt 0x000000000145c0c1
2 libpthread.so.0 0x00007fe9e109d8d0
3 libc.so.6 0x00007fe9e02dd107 gsignal + 55
4 libc.so.6 0x00007fe9e02de4e8 abort + 328
5 libc.so.6 0x00007fe9e02d6226
6 libc.so.6 0x00007fe9e02d62d2
7 opt 0x0000000000607ce4
8 opt 0x00000000011716dd llvm::Type::getStructElementType(unsigned
int) const + 45
9 opt 0x000000000109518d
llvm::ConstantAggregateZero::getStructElement(unsigned int) const + 13
10 opt 0x0000000000d5ce25
llvm::ConstantFoldLoadFromConstPtr(llvm::Constant*, llvm::DataLayout const*) +
2149
11 opt 0x0000000000d61e82
llvm::ConstantFoldInstruction(llvm::Instruction*, llvm::DataLayout const*,
llvm::TargetLibraryInfo const*) + 466
12 opt 0x0000000000d97bae
llvm::SimplifyInstruction(llvm::Instruction*, llvm::DataLayout const*,
llvm::TargetLibraryInfo const*, llvm::DominatorTree const*,
llvm::AssumptionCache*) + 2110
13 opt 0x000000000131c730
14 opt 0x000000000131df4b
15 opt 0x0000000001159ea0
llvm::FPPassManager::runOnFunction(llvm::Function&) + 480
16 opt 0x000000000115a23b
llvm::FPPassManager::runOnModule(llvm::Module&) + 43
17 opt 0x000000000115a52f
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 719
18 opt 0x0000000000657161 main + 4401
19 libc.so.6 0x00007fe9e02c9b45 __libc_start_main + 245
20 opt 0x000000000067d9f1
Stack dump:
0. Program arguments: bin/opt -early-cse empty-vec-crash.ll
1. Running pass 'Function Pass Manager' on module 'empty-vec-crash.ll'.
2. Running pass 'Early CSE' on function '@crash_on_zeroinit'</pre>
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