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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - opt -O3 causes Assertion `New->getType() == getType() && "replaceAllUses of value with new value of different type!"' failed"
href="http://llvm.org/bugs/show_bug.cgi?id=16780">16780</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>opt -O3 causes Assertion `New->getType() == getType() && "replaceAllUses of value with new value of different type!"' failed
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>milind.chabbi@rice.edu
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=10976" name="attach_10976" title="input files">attachment 10976</a> <a href="attachment.cgi?id=10976&action=edit" title="input files">[details]</a></span>
input files
I am hitting an LLVM assertion from the llc tool iff the bitcode file
is optimized at -O3 level by opt). -O1 and -O2 levels of opt do not
cause this assert.
LLVM version 3.4svn
DEBUG build with assertions.
Built Jul 14 2013 (15:39:08).
Default target: x86_64-unknown-linux-gnu
Host CPU: amdfam10
I have attached the input bc file before -O3 optimization :bzip2.del.bc
I have attached the input bc file after -O3 optimization : bzip2.del.opt.bc
Command to run on -O3 optimized file: llc -cppgen=program bzip2.del.opt.bc
Call stack:
llc: Value.cpp:307: void
llvm::Value::replaceAllUsesWith(llvm::Value*): Assertion
`New->getType() == getType() && "replaceAllUses of value with new
value of different type!"' failed.
0 llc 0x00000000014c716a llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1 llc 0x00000000014c73d1
2 llc 0x00000000014c7718
3 libpthread.so.0 0x000000333060eb10
4 libc.so.6 0x000000332fa30265 gsignal + 53
5 libc.so.6 0x000000332fa31d10 abort + 272
6 libc.so.6 0x000000332fa296e6 __assert_fail + 246
7 llc 0x00000000014702df
llvm::Value::replaceAllUsesWith(llvm::Value*) + 173
8 llc 0x00000000006b91e3
llvm::BitcodeReaderValueList::ResolveConstantForwardRefs() + 1127
9 llc 0x00000000006b9d97
llvm::BitcodeReader::ParseConstants() + 339
10 llc 0x00000000006bc634
llvm::BitcodeReader::ParseFunctionBody(llvm::Function*) + 594
11 llc 0x00000000006c2d63
llvm::BitcodeReader::Materialize(llvm::GlobalValue*, std::string*) +
411
12 llc 0x00000000006c290d
llvm::BitcodeReader::MaterializeModule(llvm::Module*, std::string*) +
195
13 llc 0x000000000144898e
llvm::Module::MaterializeAll(std::string*) + 78
14 llc 0x00000000014489b7
llvm::Module::MaterializeAllPermanently(std::string*) + 29
15 llc 0x00000000006c367b
llvm::ParseBitcodeFile(llvm::MemoryBuffer*, llvm::LLVMContext&,
std::string*) + 93
16 llc 0x0000000000679302
llvm::ParseIR(llvm::MemoryBuffer*, llvm::SMDiagnostic&,
llvm::LLVMContext&) + 214
17 llc 0x000000000067958a llvm::ParseIRFile(std::string
const&, llvm::SMDiagnostic&, llvm::LLVMContext&) + 374
18 llc 0x00000000006680f4
19 llc 0x0000000000668fed main + 199
20 libc.so.6 0x000000332fa1d994 __libc_start_main + 244
21 llc 0x0000000000666319
Stack dump:
0. Program arguments: llc -cppgen=program bzip2.del.opt.bc</pre>
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