<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assert in llvm::ReassociatePass::OptimizeAdd"
href="https://llvm.org/bugs/show_bug.cgi?id=30256">30256</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assert in llvm::ReassociatePass::OptimizeAdd
</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>babokin@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, Vsevolod.Livinskij@frtk.ru
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17208" name="attach_17208" title="reproducer">attachment 17208</a> <a href="attachment.cgi?id=17208&action=edit" title="reproducer">[details]</a></span>
reproducer
<span class="quote">> clang++ -std=c++11 -O1 pr.cpp -c</span >
clang-4.0:
/export/users/dybaboki/llvm/llvm-trunk/lib/Transforms/Scalar/Reassociate.cpp:1592:
llvm::Value *llvm::ReassociatePass::OptimizeAdd(llvm::Instruction *,
SmallVectorImpl<llvm::reassociate::ValueEntry> &): Assertion `NumAddedValues >
1 && "Each occurrence should contribute a value"' failed.
#0 0x000000000115d575 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x115d575)
#1 0x000000000115dc46 SignalHandler(int)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x115dc46)
#2 0x00007f8f60dcba00 __restore_rt (/lib64/libpthread.so.0+0x10a00)
#3 0x00007f8f5f947a28 __GI_raise (/lib64/libc.so.6+0x34a28)
#4 0x00007f8f5f94962a __GI_abort (/lib64/libc.so.6+0x3662a)
#5 0x00007f8f5f940227 __assert_fail_base (/lib64/libc.so.6+0x2d227)
#6 0x00007f8f5f9402d2 (/lib64/libc.so.6+0x2d2d2)
#7 0x0000000001081773 llvm::ReassociatePass::OptimizeAdd(llvm::Instruction*,
llvm::SmallVectorImpl<llvm::reassociate::ValueEntry>&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1081773)
#8 0x0000000001082e2a
llvm::ReassociatePass::OptimizeExpression(llvm::BinaryOperator*,
llvm::SmallVectorImpl<llvm::reassociate::ValueEntry>&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1082e2a)
#9 0x0000000001085f4a
llvm::ReassociatePass::ReassociateExpression(llvm::BinaryOperator*)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1085f4a)
#10 0x0000000001085085 llvm::ReassociatePass::OptimizeInst(llvm::Instruction*)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1085085)
#11 0x0000000001086d25 llvm::ReassociatePass::run(llvm::Function&,
llvm::AnalysisManager<llvm::Function>&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1086d25)
#12 0x000000000108870c (anonymous
namespace)::ReassociateLegacyPass::runOnFunction(llvm::Function&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x108870c)
#13 0x0000000000d70e3f llvm::FPPassManager::runOnFunction(llvm::Function&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0xd70e3f)
#14 0x0000000001b51fe7 (anonymous
namespace)::CGPassManager::runOnModule(llvm::Module&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1b51fe7)
#15 0x0000000000d71598 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0xd71598)
#16 0x00000000012e0c13 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions
const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x12e0c13)
#17 0x00000000019b487f
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x19b487f)
#18 0x0000000001ddccc6 clang::ParseAST(clang::Sema&, bool, bool)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1ddccc6)
#19 0x000000000169bc45 clang::FrontendAction::Execute()
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x169bc45)
#20 0x0000000001666571
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x1666571)
#21 0x000000000172f9e1
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x172f9e1)
#22 0x00000000006e2d79 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x6e2d79)
#23 0x00000000006e17fe main
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x6e17fe)
#24 0x00007f8f5f933580 __libc_start_main (/lib64/libc.so.6+0x20580)
#25 0x00000000006dec49 _start
(/export/users/dybaboki/llvm/bin-trunk/bin/clang-4.0+0x6dec49)
<span class="quote">> clang --version</span >
clang version 4.0.0 (trunk 280256)
Target: x86_64-unknown-linux-gnu</pre>
</div>
</p>
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