<html>
<head>
<base href="https://bugs.llvm.org/">
</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 - Orphaned master directive in lambda crashes"
href="https://bugs.llvm.org/show_bug.cgi?id=48571">48571</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Orphaned master directive in lambda crashes
</td>
</tr>
<tr>
<th>Product</th>
<td>OpenMP
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Clang Compiler Support
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jdoerfert@anl.gov
</td>
</tr>
<tr>
<th>CC</th>
<td>a.bataev@hotmail.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>This (<a href="https://clang.godbolt.org/z/1f47K4">https://clang.godbolt.org/z/1f47K4</a>) crashes in clang right now:
```
void f(int a, int b) {
auto l = [=]() {
#pragma omp master
{
int c = a + b;
}
};
l();
}
```
stack trace
```
3. <source>:4:12: Generating code for declaration 'f(int, int)::(anonymous
class)::operator()'
4. <source>:6:5: LLVM IR generation of compound statement ('{}')
#0 0x000055ba26506b6c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2efbb6c)
#1 0x000055ba26504904 llvm::sys::RunSignalHandlers()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2ef9904)
#2 0x000055ba26504b95 llvm::sys::CleanupOnSignal(unsigned long)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2ef9b95)
#3 0x000055ba2646e9b8 CrashRecoverySignalHandler(int)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2e639b8)
#4 0x00007f131f2923c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#5 0x000055ba26b0ec87 (anonymous
namespace)::CGOpenMPInlinedRegionInfo::getContextValue() const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3503c87)
#6 0x000055ba26a60d45
clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3455d45)
#7 0x000055ba26a5f2de clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr
const*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x34542de)
#8 0x000055ba26a63887
clang::CodeGen::CodeGenFunction::EmitCheckedLValue(clang::Expr const*,
clang::CodeGen::CodeGenFunction::TypeCheckKind)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3458887)
#9 0x000055ba26a9afc9 (anonymous
namespace)::ScalarExprEmitter::EmitLoadOfLValue(clang::Expr const*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x348ffc9)
#10 0x000055ba26a994c2 (anonymous
namespace)::ScalarExprEmitter::Visit(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x348e4c2)
#11 0x000055ba26a9f1e0 (anonymous
namespace)::ScalarExprEmitter::VisitCastExpr(clang::CastExpr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x34941e0)
#12 0x000055ba26a99297 (anonymous
namespace)::ScalarExprEmitter::Visit(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x348e297)
#13 0x000055ba26a9cabd (anonymous
namespace)::ScalarExprEmitter::EmitBinOps(clang::BinaryOperator const*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3491abd)
#14 0x000055ba26a9913c (anonymous
namespace)::ScalarExprEmitter::Visit(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x348e13c)
#15 0x000055ba26a9ac23
clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x348fc23)
#16 0x000055ba26a30a0f
clang::CodeGen::CodeGenFunction::EmitScalarInit(clang::Expr const*,
clang::ValueDecl const*, clang::CodeGen::LValue, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3425a0f)
#17 0x000055ba26a3137e
clang::CodeGen::CodeGenFunction::EmitExprAsInit(clang::Expr const*,
clang::ValueDecl const*, clang::CodeGen::LValue, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x342637e)
#18 0x000055ba26a377ae
clang::CodeGen::CodeGenFunction::EmitAutoVarInit(clang::CodeGen::CodeGenFunction::AutoVarEmission
const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x342c7ae)
#19 0x000055ba26a38885
clang::CodeGen::CodeGenFunction::EmitAutoVarDecl(clang::VarDecl const&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x342d885)
#20 0x000055ba26a38b6d clang::CodeGen::CodeGenFunction::EmitDecl(clang::Decl
const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x342db6d)
#21 0x000055ba267e13c7
clang::CodeGen::CodeGenFunction::EmitDeclStmt(clang::DeclStmt const&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31d63c7)
#22 0x000055ba267ef5b5
clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*,
llvm::ArrayRef<clang::Attr const*>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e45b5)
#23 0x000055ba267eb022 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt
const*, llvm::ArrayRef<clang::Attr const*>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e0022)
#24 0x000055ba267eb6dc
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e06dc)
#25 0x000055ba267eb9f3
clang::CodeGen::CodeGenFunction::EmitCompoundStmt(clang::CompoundStmt const&,
bool, clang::CodeGen::AggValueSlot)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e09f3)
#26 0x000055ba267ef4da
clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*,
llvm::ArrayRef<clang::Attr const*>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e44da)
#27 0x000055ba267eb022 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt
const*, llvm::ArrayRef<clang::Attr const*>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e0022)
#28 0x000055ba26b14f0a
clang::CodeGen::RegionCodeGenTy::operator()(clang::CodeGen::CodeGenFunction&)
const (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3509f0a)
#29 0x000055ba26b1517f (anonymous
namespace)::CGOpenMPRegionInfo::EmitBody(clang::CodeGen::CodeGenFunction&,
clang::Stmt const*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x350a17f)
#30 0x000055ba26b1147e
clang::CodeGen::CGOpenMPRuntime::emitInlinedDirective(clang::CodeGen::CodeGenFunction&,
llvm::omp::Directive, clang::CodeGen::RegionCodeGenTy const&, bool)
(.part.1682) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x350647e)
#31 0x000055ba26b360fa
clang::CodeGen::CGOpenMPRuntime::emitMasterRegion(clang::CodeGen::CodeGenFunction&,
clang::CodeGen::RegionCodeGenTy const&, clang::SourceLocation)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x352b0fa)
#32 0x000055ba267f6f20
clang::CodeGen::CodeGenFunction::EmitOMPMasterDirective(clang::OMPMasterDirective
const&) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x31ebf20)
#33 0x000055ba267eb459 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt
const*, llvm::ArrayRef<clang::Attr const*>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e0459)
#34 0x000055ba267eb6dc
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x31e06dc)
#35 0x000055ba268382a9
clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x322d2a9)
#36 0x000055ba2683fa2e
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3234a2e)
#37 0x000055ba26882198
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3277198)
#38 0x000055ba26880114
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x3275114)
#39 0x000055ba2688693a clang::CodeGen::CodeGenModule::EmitDeferred()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x327b93a)
#40 0x000055ba268869ac clang::CodeGen::CodeGenModule::EmitDeferred()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x327b9ac)
#41 0x000055ba26886d6c clang::CodeGen::CodeGenModule::Release()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x327bd6c)
#42 0x000055ba2733e9a7 (anonymous
namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3d339a7)
#43 0x000055ba2733c975
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3d31975)
#44 0x000055ba280f3669 clang::ParseAST(clang::Sema&, bool, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ae8669)
#45 0x000055ba26d43281 clang::FrontendAction::Execute()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3738281)
#46 0x000055ba26ced0c3
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x36e20c3)
#47 0x000055ba26e0a933
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x37ff933)
#48 0x000055ba2454301c cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xf3801c)
#49 0x000055ba2453f6cd ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xf346cd)
#50 0x000055ba26bb3105 void llvm::function_ref<void
()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
<span class="quote">>, std::__cxx11::basic_string<char, std::char_traits<char>,</span >
std::allocator<char> >*, bool*) const::'lambda'()>(long)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x35a8105)
#51 0x000055ba2646ea93
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2e63a93)
#52 0x000055ba26bb3c37
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
<span class="quote">>, std::__cxx11::basic_string<char, std::char_traits<char>,</span >
std::allocator<char> >*, bool*) const (.part.172)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x35a8c37)
#53 0x000055ba26b8c93a
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x358193a)
#54 0x000055ba26b8d48f
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x358248f)
#55 0x000055ba26b963b5
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x358b3b5)
#56 0x000055ba2446cf76 main
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xe61f76)
#57 0x00007f131ed430b3 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x270b3)
#58 0x000055ba2453f24a _start
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xf3424a)
```</pre>
</div>
</p>
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