<html>
<head>
<base href="http://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 --- - Assertion in Codegen with lambdas"
href="http://llvm.org/bugs/show_bug.cgi?id=18020">18020</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion in Codegen with lambdas
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</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>LLVM Codegen
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rtrieu@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Command line:
clang -cc1 -emit-obj -std=c++11 lambda.ii
Code:
class Registerer {
public:
Registerer(void (*creator)()) { }
void test() { }
};
class Base {
public:
virtual void Run() { };
};
template<typename Lambda>
class LambdaHandler : public Base {
public:
void Run() {
Lambda()();
}
static void Create() {
new LambdaHandler();
}
static Registerer R;
struct C {
C() {
R.test();
}
} c;
};
template <typename T> Registerer LambdaHandler<T>::R(Create);
auto x = []() {
static auto l1 = []() { return 0; };
struct Lambda {
void operator()() const {
l1();
}
};
return new LambdaHandler<Lambda>();
};
Stack dump:
clang: llvm/tools/clang/lib/CodeGen/CGExpr.cpp:1795: clang::CodeGen::LValue
clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(const clang::DeclRefExpr*):
Assertion `isa<BlockDecl>(CurCodeDecl) && E->refersToEnclosingLocal()' failed.
0 clang 0x0000000001e5cc23 llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1 clang 0x0000000001e5ceaa
2 clang 0x0000000001e5c8ee
3 libpthread.so.0 0x00007fec48834cb0
4 libc.so.6 0x00007fec47c89425 gsignal + 53
5 libc.so.6 0x00007fec47c8cb8b abort + 379
6 libc.so.6 0x00007fec47c820ee
7 libc.so.6 0x00007fec47c82192
8 clang 0x0000000001ff9800
clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*) +
1298
9 clang 0x0000000001ff459b
clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*) + 481
10 clang 0x0000000001fff1a6
clang::CodeGen::CodeGenFunction::EmitCastLValue(clang::CastExpr const*) + 446
11 clang 0x0000000001ff4a93
clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*) + 1753
12 clang 0x000000000201f685
clang::CodeGen::CodeGenFunction::EmitCXXOperatorMemberCallExpr(clang::CXXOperatorCallExpr
const*, clang::CXXMethodDecl const*, clang::CodeGen::ReturnValueSlot) + 143
13 clang 0x0000000001fffd30
clang::CodeGen::CodeGenFunction::EmitCallExpr(clang::CallExpr const*,
clang::CodeGen::ReturnValueSlot) + 768
14 clang 0x00000000020281df
15 clang 0x00000000020392fb
16 clang 0x00000000020386cb
17 clang 0x00000000020277e7
18 clang 0x0000000002037489
clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) + 159
19 clang 0x0000000001ff0ce9
clang::CodeGen::CodeGenFunction::EmitAnyExpr(clang::Expr const*,
clang::CodeGen::AggValueSlot, bool) + 101
20 clang 0x0000000001ff0c39
clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*) + 127
21 clang 0x0000000001ee59be
clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*) + 400
22 clang 0x0000000001ee6065
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot) + 109
23 clang 0x0000000001f013f3
clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::CodeGen::FunctionArgList&,
clang::Stmt const*) + 113
24 clang 0x0000000001f01b27
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&) + 1347
25 clang 0x0000000001f13809
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl)
+ 943
26 clang 0x0000000001f10cd3
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl) + 331
27 clang 0x0000000001f0f77f
clang::CodeGen::CodeGenModule::EmitDeferred() + 341
28 clang 0x0000000001f0c7a9 clang::CodeGen::CodeGenModule::Release()
+ 25
29 clang 0x0000000001e96b85
30 clang 0x0000000001e957ef
31 clang 0x000000000226d72c clang::ParseAST(clang::Sema&, bool, bool)
+ 776
32 clang 0x0000000002166b33 clang::ASTFrontendAction::ExecuteAction()
+ 321
33 clang 0x0000000001e94704 clang::CodeGenAction::ExecuteAction() +
1414
34 clang 0x0000000002166672 clang::FrontendAction::Execute() + 200
35 clang 0x000000000213eaa4
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 720
36 clang 0x0000000001e633de
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1018
37 clang 0x0000000000d035a9 cc1_main(char const**, char const**, char
const*, void*) + 717
38 clang 0x0000000000cfdade main + 786
39 libc.so.6 0x00007fec47c7476d __libc_start_main + 237
40 clang 0x0000000000cfc3d9
Stack dump:
0. Program arguments: llvm/llvm_build/bin/clang -cc1 -emit-obj -std=c++11
lambda.ii
1. <eof> parser at end of file
2. Per-file LLVM IR generation
3. lambda.ii:38:10: Generating code for declaration '<anonymous
class>::operator()()::Lambda::operator()'
Aborted (core dumped)</pre>
</div>
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