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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 --- - [ms] "Expected MSInheritanceAttr on the CXXRecordDecl!" assert when passing address of base class member function through subclass access path" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23828&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=RbG8BcTh6Ex-r73irckClm_hYPNb5IUcYu3mGyQfOdc&s=UUuR99PWPLUvh9PRQLuvaOEtVWTe-RWQ60qMEVzZyBg&e=">23828</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[ms] "Expected MSInheritanceAttr on the CXXRecordDecl!" assert when passing address of base class member function through subclass access path
</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>All
</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>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nicolasweber@gmx.de
</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>This is not a recent regression, we just didn't have code like this in Chromium
until yesterday.
thakis$ cat repro.cc
template <typename T> void use(const T &);
struct Base { void Method(); };
class Child : public Base {};
void f() { use<void (Child::*)()>(&Child::Method); }
thakis$ ~/src/llvm-build/bin/clang -cc1 -triple x86_64-apple-windows-msvc
-emit-obj repro.cc
Assertion failed: (IA && "Expected MSInheritanceAttr on the CXXRecordDecl!"),
function getMSInheritanceModel, file
/Users/thakis/src/llvm-rw/tools/clang/lib/AST/MicrosoftCXXABI.cpp, line 159.
0 clang 0x0000000103b294c9
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 57
1 clang 0x0000000103b29feb SignalHandler(int) + 875
2 libsystem_platform.dylib 0x00007fff858dcf1a _sigtramp + 26
3 libsystem_platform.dylib 0x00007fff6ba4c764 _sigtramp + 3860265060
4 clang 0x0000000103b29bc6 abort + 22
5 clang 0x0000000103b29ba1 __assert_rtn + 81
6 clang 0x0000000104f638c7
clang::CXXRecordDecl::getMSInheritanceModel() const + 167
7 clang 0x0000000104f63ba9 (anonymous
namespace)::MicrosoftCXXABI::getMemberPointerWidthAndAlign(clang::MemberPointerType
const*) const + 57
8 clang 0x0000000104ddae8d
clang::ASTContext::getTypeInfoImpl(clang::Type const*) const + 1309
9 clang 0x0000000104dda7d2
clang::ASTContext::getTypeInfo(clang::Type const*) const + 194
10 clang 0x0000000104dda571
clang::ASTContext::getTypeInfoInChars(clang::Type const*) const + 113
11 clang 0x0000000104038338
clang::CodeGen::CodeGenModule::ConstructAttributeList(clang::CodeGen::CGFunctionInfo
const&, clang::Decl const*, llvm::SmallVector<llvm::AttributeSet, 8u>&,
unsigned int&, bool) + 4680
12 clang 0x0000000104158031
clang::CodeGen::CodeGenModule::SetFunctionAttributes(clang::GlobalDecl,
llvm::Function*, bool, bool) + 225
13 clang 0x000000010415a54b
clang::CodeGen::CodeGenModule::GetOrCreateLLVMFunction(llvm::StringRef,
llvm::Type*, clang::GlobalDecl, bool, bool, bool, llvm::AttributeSet) + 523
14 clang 0x000000010415d530
clang::CodeGen::CodeGenModule::GetAddrOfFunction(clang::GlobalDecl,
llvm::Type*, bool, bool) + 128
15 clang 0x0000000104090c45
EmitFunctionDeclLValue(clang::CodeGen::CodeGenFunction&, clang::Expr const*,
clang::FunctionDecl const*) + 117
16 clang 0x000000010408864c
clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*) +
876
17 clang 0x0000000104081684
clang::CodeGen::CodeGenFunction::EmitLValue(clang::Expr const*) + 868
18 clang 0x00000001040bf870 (anonymous
namespace)::ScalarExprEmitter::VisitCastExpr(clang::CastExpr*) + 1904
19 clang 0x00000001040b7b6d
clang::StmtVisitorBase<clang::make_ptr, (anonymous
namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) + 493
20 clang 0x00000001040af748
clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) + 104
21 clang 0x0000000104091cc6
clang::CodeGen::CodeGenFunction::EmitCallExpr(clang::CallExpr const*,
clang::CodeGen::ReturnValueSlot) + 582
22 clang 0x00000001040befec (anonymous
namespace)::ScalarExprEmitter::VisitCallExpr(clang::CallExpr const*) + 172
23 clang 0x00000001040b7b98
clang::StmtVisitorBase<clang::make_ptr, (anonymous
namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) + 536
24 clang 0x00000001040af748
clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) + 104
25 clang 0x00000001040812aa
clang::CodeGen::CodeGenFunction::EmitAnyExpr(clang::Expr const*,
clang::CodeGen::AggValueSlot, bool) + 250
26 clang 0x00000001040811a7
clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*) + 55
27 clang 0x00000001041231f1
clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*) + 433
28 clang 0x000000010412afab
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot) + 91
29 clang 0x000000010414d8fa
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&) + 1194
30 clang 0x000000010415c6a3
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl,
llvm::GlobalValue*) + 1283
31 clang 0x000000010415909a
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) + 298
32 clang 0x000000010415b4bd
clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) + 1085
33 clang 0x000000010415e214
clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) + 228
34 clang 0x00000001041c825f (anonymous
namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef) + 127
35 clang 0x0000000104147f95
clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef) + 165
36 clang 0x0000000104507fb3 clang::ParseAST(clang::Sema&,
bool, bool) + 371
37 clang 0x0000000104146c1b
clang::CodeGenAction::ExecuteAction() + 123
38 clang 0x0000000103d58be3 clang::FrontendAction::Execute()
+ 67
39 clang 0x0000000103d2763c
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 972
40 clang 0x0000000103d99e6b
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4043
41 clang 0x0000000102a9d45c cc1_main(llvm::ArrayRef<char
const*>, char const*, void*) + 1068
42 clang 0x0000000102a9c105 main + 11029
43 libdyld.dylib 0x00007fff888b45c9 start + 1
44 libdyld.dylib 0x0000000000000006 start + 2004138558
Stack dump:
0. Program arguments: /Users/thakis/src/llvm-build/bin/clang -cc1 -triple
x86_64-apple-windows-msvc -emit-obj repro.cc
1. <eof> parser at end of file
2. repro.cc:4:6: LLVM IR generation of declaration 'f'
3. repro.cc:4:6: Generating code for declaration 'f'
Illegal instruction: 4</pre>
</div>
</p>
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