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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [regression] clang crash on __has_nothrow_copy"
href="https://llvm.org/bugs/show_bug.cgi?id=30491">30491</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[regression] clang crash on __has_nothrow_copy
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.9
</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>C++14
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>blastrock@free.fr
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>The following code compiles on clang 3.8 but makes clang 3.9 crash:
struct StringWrapper
{
StringWrapper(StringWrapper const&) noexcept(false)
{}
};
struct AccountID : public StringWrapper
{
using StringWrapper::StringWrapper;
};
static_assert(!__has_nothrow_copy(AccountID), "no");
Here is the backtrace:
#0 0x0000000000f13d08 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/philippe/.local/bin/clang-3.9+0xf13d08)
#1 0x0000000000f143e6 SignalHandler(int)
(/home/philippe/.local/bin/clang-3.9+0xf143e6)
#2 0x00007ff87fb58d40 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10d40)
#3 0x00000000022b56b8 clang::FunctionDecl::getNumParams() const
(/home/philippe/.local/bin/clang-3.9+0x22b56b8)
#4 0x00000000022d71d4
clang::CXXConstructorDecl::isCopyOrMoveConstructor(unsigned int&) const
(/home/philippe/.local/bin/clang-3.9+0x22d71d4)
#5 0x00000000022d4439 clang::CXXConstructorDecl::isCopyConstructor(unsigned
int&) const (/home/philippe/.local/bin/clang-3.9+0x22d4439)
#6 0x0000000001d8fe82 evaluateTypeTrait(clang::Sema&, clang::TypeTrait,
clang::SourceLocation, llvm::ArrayRef<clang::TypeSourceInfo*>,
clang::SourceLocation) (/home/philippe/.local/bin/clang-3.9+0x1d8fe82)
#7 0x0000000001d8d3c4 clang::Sema::BuildTypeTrait(clang::TypeTrait,
clang::SourceLocation, llvm::ArrayRef<clang::TypeSourceInfo*>,
clang::SourceLocation) (/home/philippe/.local/bin/clang-3.9+0x1d8d3c4)
#8 0x0000000001d9010a clang::Sema::ActOnTypeTrait(clang::TypeTrait,
clang::SourceLocation, llvm::ArrayRef<clang::OpaquePtr<clang::QualType> >,
clang::SourceLocation) (/home/philippe/.local/bin/clang-3.9+0x1d9010a)
#9 0x00000000019c6870 clang::Parser::ParseTypeTrait()
(/home/philippe/.local/bin/clang-3.9+0x19c6870)
#10 0x00000000019addfe clang::Parser::ParseCastExpression(bool, bool,
bool&, clang::Parser::TypeCastState)
(/home/philippe/.local/bin/clang-3.9+0x19addfe)
#11 0x00000000019adbd8
clang::Parser::ParseConstantExpression(clang::Parser::TypeCastState)
(/home/philippe/.local/bin/clang-3.9+0x19adbd8)
#12 0x000000000199bb49
clang::Parser::ParseStaticAssertDeclaration(clang::SourceLocation&)
(/home/philippe/.local/bin/clang-3.9+0x199bb49)
#13 0x0000000001982354 clang::Parser::ParseDeclaration(unsigned int,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&)
(/home/philippe/.local/bin/clang-3.9+0x1982354)
#14 0x000000000196f6fe
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/home/philippe/.local/bin/clang-3.9+0x196f6fe)
#15 0x000000000196ecdc
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/home/philippe/.local/bin/clang-3.9+0x196ecdc)
#16 0x000000000196b596 clang::ParseAST(clang::Sema&, bool, bool)
(/home/philippe/.local/bin/clang-3.9+0x196b596)
#17 0x0000000001365f3c clang::FrontendAction::Execute()
(/home/philippe/.local/bin/clang-3.9+0x1365f3c)
#18 0x000000000132fca8
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/home/philippe/.local/bin/clang-3.9+0x132fca8)
#19 0x00000000013df67b
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/home/philippe/.local/bin/clang-3.9+0x13df67b)
#20 0x000000000070d8ad cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/home/philippe/.local/bin/clang-3.9+0x70d8ad)
#21 0x000000000070cd6e main (/home/philippe/.local/bin/clang-3.9+0x70cd6e)
#22 0x00007ff87e6df5f0 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x205f0)
#23 0x0000000000709d29 _start
(/home/philippe/.local/bin/clang-3.9+0x709d29)</pre>
</div>
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