[Clang] [ICE] [crash-on-valid] clang frontend crashes when using modules, self-friend template with concepts

[yujincheng08]

Description

Maybe related to #86769, but I have merged its fix #86914 and still crash.

Minimum reproducible example:
https://godbolt.org/z/3cd8nYMh5

Assertion

clang++: /root/llvm-project/clang/lib/AST/ExprConstant.cpp:15828: bool clang::Expr::EvaluateAsConstantExpr(clang::Expr::EvalResult&, const clang::ASTContext&, clang::Expr::ConstantExprKind) const: Assertion `!isValueDependent() && "Expression evaluator can't be called on a dependent expression."' failed.

Stack dump:

0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -Dtest_EXPORTS -fcolor-diagnostics -fno-crash-diagnostics -O2 -g -DNDEBUG -std=gnu++20 -fPIC -MD -MT CMakeFiles/test.dir/foo.cc.o -MF CMakeFiles/test.dir/foo.cc.o.d @CMakeFiles/test.dir/foo.cc.o.modmap -o CMakeFiles/test.dir/foo.cc.o -c /app/foo.cc
1.	/app/foo.cc:6:8: at annotation token
2.	/app/foo.cc:5:10: parsing function body 'y'
3.	/app/foo.cc:5:10: in compound statement ('{}')
 #0 0x00000000039391d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x39391d8)
 #1 0x0000000003936ebc llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3936ebc)
 #2 0x000000000387d468 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007fda3d242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007fda3d2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007fda3d242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007fda3d2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00007fda3d22871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x00007fda3d239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x0000000007499998 clang::Expr::EvaluateAsConstantExpr(clang::Expr::EvalResult&, clang::ASTContext const&, clang::Expr::ConstantExprKind) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7499998)
#10 0x00000000064af45e clang::ActionResult<clang::Expr*, true> calculateConstraintSatisfaction<calculateConstraintSatisfaction(clang::Sema&, clang::NamedDecl const*, clang::SourceLocation, clang::MultiLevelTemplateArgumentList const&, clang::Expr const*, clang::ConstraintSatisfaction&)::'lambda'(clang::Expr const*)>(clang::Sema&, clang::Expr const*, clang::ConstraintSatisfaction&, calculateConstraintSatisfaction(clang::Sema&, clang::NamedDecl const*, clang::SourceLocation, clang::MultiLevelTemplateArgumentList const&, clang::Expr const*, clang::ConstraintSatisfaction&)::'lambda'(clang::Expr const*)&&) SemaConcept.cpp:0:0
#11 0x00000000064afc42 CheckConstraintSatisfaction(clang::Sema&, clang::NamedDecl const*, llvm::ArrayRef<clang::Expr const*>, llvm::SmallVectorImpl<clang::Expr*>&, clang::MultiLevelTemplateArgumentList const&, clang::SourceRange, clang::ConstraintSatisfaction&) SemaConcept.cpp:0:0
#12 0x00000000064b027a clang::Sema::CheckConstraintSatisfaction(clang::NamedDecl const*, llvm::ArrayRef<clang::Expr const*>, llvm::SmallVectorImpl<clang::Expr*>&, clang::MultiLevelTemplateArgumentList const&, clang::SourceRange, clang::ConstraintSatisfaction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64b027a)
#13 0x00000000064b5c0c clang::Sema::EnsureTemplateArgumentListConstraints(clang::TemplateDecl*, clang::MultiLevelTemplateArgumentList const&, clang::SourceRange) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64b5c0c)
#14 0x0000000006bf7558 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&, bool, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bf7558)
#15 0x0000000006bfda59 clang::Sema::CheckTemplateIdType(clang::TemplateName, clang::SourceLocation, clang::TemplateArgumentListInfo&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bfda59)
#16 0x0000000006c005b7 clang::Sema::ActOnTemplateIdType(clang::Scope*, clang::CXXScopeSpec&, clang::SourceLocation, clang::OpaquePtr<clang::TemplateName>, clang::IdentifierInfo*, clang::SourceLocation, clang::SourceLocation, llvm::MutableArrayRef<clang::ParsedTemplateArgument>, clang::SourceLocation, bool, bool, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c005b7)
#17 0x00000000062e505b clang::Parser::AnnotateTemplateIdTokenAsType(clang::CXXScopeSpec&, clang::ImplicitTypenameContext, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62e505b)
#18 0x00000000061e2be0 clang::Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(clang::CXXScopeSpec&, bool, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e2be0)
#19 0x00000000061e57fe clang::Parser::TryAnnotateTypeOrScopeToken(clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e57fe)
#20 0x00000000062f6b4b clang::Parser::isCXXDeclarationSpecifier(clang::ImplicitTypenameContext, clang::Parser::TPResult, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62f6b4b)
#21 0x00000000062fc1a7 clang::Parser::isCXXDeclarationStatement(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62fc1a7)
#22 0x00000000062d1041 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d1041)
#23 0x00000000062d2927 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d2927)
#24 0x00000000062d3831 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d3831)
#25 0x00000000062d514a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d514a)
#26 0x00000000061effe1 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61effe1)
#27 0x000000000622780c clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x622780c)
#28 0x00000000061e3f7e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e3f7e)
#29 0x00000000061e4773 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e4773)
#30 0x00000000061ebbe6 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61ebbe6)
#31 0x00000000061eca8d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61eca8d)
#32 0x00000000061df76a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61df76a)
#33 0x00000000041e9fa8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41e9fa8)
#34 0x0000000004468cd9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4468cd9)
#35 0x00000000043f23de clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43f23de)
#36 0x000000000454bd5e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x454bd5e)
#37 0x0000000000c4463c cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc4463c)
#38 0x0000000000c3d8ca ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#39 0x000000000422ced9 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#40 0x000000000387d914 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x387d914)
#41 0x000000000422d4cf clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#42 0x00000000041f38c5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41f38c5)
#43 0x00000000041f432d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41f432d)
#44 0x00000000041fc0a5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41fc0a5)
#45 0x0000000000c41ad5 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc41ad5)
#46 0x0000000000b24944 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xb24944)
#47 0x00007fda3d229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#48 0x00007fda3d229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#49 0x0000000000c3d3be _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc3d3be)

[yujincheng08]

hi @zyn0217, since you have fixed a similiar issue #86769, any idea about this?

[llvmbot]

@llvm/issue-subscribers-clang-modules

Author: LoveSy (yujincheng08)

### Description Maybe related to #86769, but I have merged its fix #86914 and still crash.

Minimum reproducible example:
https://godbolt.org/z/3cd8nYMh5

Assertion

clang++: /root/llvm-project/clang/lib/AST/ExprConstant.cpp:15828: bool clang::Expr::EvaluateAsConstantExpr(clang::Expr::EvalResult&, const clang::ASTContext&, clang::Expr::ConstantExprKind) const: Assertion `!isValueDependent() && "Expression evaluator can't be called on a dependent expression."' failed.

Stack dump:

<details>

0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -Dtest_EXPORTS -fcolor-diagnostics -fno-crash-diagnostics -O2 -g -DNDEBUG -std=gnu++20 -fPIC -MD -MT CMakeFiles/test.dir/foo.cc.o -MF CMakeFiles/test.dir/foo.cc.o.d @<!-- -->CMakeFiles/test.dir/foo.cc.o.modmap -o CMakeFiles/test.dir/foo.cc.o -c /app/foo.cc
1.	/app/foo.cc:6:8: at annotation token
2.	/app/foo.cc:5:10: parsing function body 'y'
3.	/app/foo.cc:5:10: in compound statement ('{}')
 #<!-- -->0 0x00000000039391d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x39391d8)
 #<!-- -->1 0x0000000003936ebc llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3936ebc)
 #<!-- -->2 0x000000000387d468 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #<!-- -->3 0x00007fda3d242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #<!-- -->4 0x00007fda3d2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #<!-- -->5 0x00007fda3d242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #<!-- -->6 0x00007fda3d2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #<!-- -->7 0x00007fda3d22871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #<!-- -->8 0x00007fda3d239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #<!-- -->9 0x0000000007499998 clang::Expr::EvaluateAsConstantExpr(clang::Expr::EvalResult&amp;, clang::ASTContext const&amp;, clang::Expr::ConstantExprKind) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7499998)
#<!-- -->10 0x00000000064af45e clang::ActionResult&lt;clang::Expr*, true&gt; calculateConstraintSatisfaction&lt;calculateConstraintSatisfaction(clang::Sema&amp;, clang::NamedDecl const*, clang::SourceLocation, clang::MultiLevelTemplateArgumentList const&amp;, clang::Expr const*, clang::ConstraintSatisfaction&amp;)::'lambda'(clang::Expr const*)&gt;(clang::Sema&amp;, clang::Expr const*, clang::ConstraintSatisfaction&amp;, calculateConstraintSatisfaction(clang::Sema&amp;, clang::NamedDecl const*, clang::SourceLocation, clang::MultiLevelTemplateArgumentList const&amp;, clang::Expr const*, clang::ConstraintSatisfaction&amp;)::'lambda'(clang::Expr const*)&amp;&amp;) SemaConcept.cpp:0:0
#<!-- -->11 0x00000000064afc42 CheckConstraintSatisfaction(clang::Sema&amp;, clang::NamedDecl const*, llvm::ArrayRef&lt;clang::Expr const*&gt;, llvm::SmallVectorImpl&lt;clang::Expr*&gt;&amp;, clang::MultiLevelTemplateArgumentList const&amp;, clang::SourceRange, clang::ConstraintSatisfaction&amp;) SemaConcept.cpp:0:0
#<!-- -->12 0x00000000064b027a clang::Sema::CheckConstraintSatisfaction(clang::NamedDecl const*, llvm::ArrayRef&lt;clang::Expr const*&gt;, llvm::SmallVectorImpl&lt;clang::Expr*&gt;&amp;, clang::MultiLevelTemplateArgumentList const&amp;, clang::SourceRange, clang::ConstraintSatisfaction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64b027a)
#<!-- -->13 0x00000000064b5c0c clang::Sema::EnsureTemplateArgumentListConstraints(clang::TemplateDecl*, clang::MultiLevelTemplateArgumentList const&amp;, clang::SourceRange) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64b5c0c)
#<!-- -->14 0x0000000006bf7558 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&amp;, bool, llvm::SmallVectorImpl&lt;clang::TemplateArgument&gt;&amp;, llvm::SmallVectorImpl&lt;clang::TemplateArgument&gt;&amp;, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bf7558)
#<!-- -->15 0x0000000006bfda59 clang::Sema::CheckTemplateIdType(clang::TemplateName, clang::SourceLocation, clang::TemplateArgumentListInfo&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bfda59)
#<!-- -->16 0x0000000006c005b7 clang::Sema::ActOnTemplateIdType(clang::Scope*, clang::CXXScopeSpec&amp;, clang::SourceLocation, clang::OpaquePtr&lt;clang::TemplateName&gt;, clang::IdentifierInfo*, clang::SourceLocation, clang::SourceLocation, llvm::MutableArrayRef&lt;clang::ParsedTemplateArgument&gt;, clang::SourceLocation, bool, bool, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c005b7)
#<!-- -->17 0x00000000062e505b clang::Parser::AnnotateTemplateIdTokenAsType(clang::CXXScopeSpec&amp;, clang::ImplicitTypenameContext, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62e505b)
#<!-- -->18 0x00000000061e2be0 clang::Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(clang::CXXScopeSpec&amp;, bool, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e2be0)
#<!-- -->19 0x00000000061e57fe clang::Parser::TryAnnotateTypeOrScopeToken(clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e57fe)
#<!-- -->20 0x00000000062f6b4b clang::Parser::isCXXDeclarationSpecifier(clang::ImplicitTypenameContext, clang::Parser::TPResult, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62f6b4b)
#<!-- -->21 0x00000000062fc1a7 clang::Parser::isCXXDeclarationStatement(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62fc1a7)
#<!-- -->22 0x00000000062d1041 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector&lt;clang::Stmt*, 32u&gt;&amp;, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d1041)
#<!-- -->23 0x00000000062d2927 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector&lt;clang::Stmt*, 32u&gt;&amp;, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d2927)
#<!-- -->24 0x00000000062d3831 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d3831)
#<!-- -->25 0x00000000062d514a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d514a)
#<!-- -->26 0x00000000061effe1 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&amp;, clang::Parser::ParsedTemplateInfo const&amp;, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61effe1)
#<!-- -->27 0x000000000622780c clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&amp;, clang::DeclaratorContext, clang::ParsedAttributes&amp;, clang::Parser::ParsedTemplateInfo&amp;, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x622780c)
#<!-- -->28 0x00000000061e3f7e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec&amp;, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e3f7e)
#<!-- -->29 0x00000000061e4773 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e4773)
#<!-- -->30 0x00000000061ebbe6 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61ebbe6)
#<!-- -->31 0x00000000061eca8d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr&lt;clang::DeclGroupRef&gt;&amp;, clang::Sema::ModuleImportState&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61eca8d)
#<!-- -->32 0x00000000061df76a clang::ParseAST(clang::Sema&amp;, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61df76a)
#<!-- -->33 0x00000000041e9fa8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41e9fa8)
#<!-- -->34 0x0000000004468cd9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4468cd9)
#<!-- -->35 0x00000000043f23de clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43f23de)
#<!-- -->36 0x000000000454bd5e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x454bd5e)
#<!-- -->37 0x0000000000c4463c cc1_main(llvm::ArrayRef&lt;char const*&gt;, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc4463c)
#<!-- -->38 0x0000000000c3d8ca ExecuteCC1Tool(llvm::SmallVectorImpl&lt;char const*&gt;&amp;, llvm::ToolContext const&amp;) driver.cpp:0:0
#<!-- -->39 0x000000000422ced9 void llvm::function_ref&lt;void ()&gt;::callback_fn&lt;clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const::'lambda'()&gt;(long) Job.cpp:0:0
#<!-- -->40 0x000000000387d914 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref&lt;void ()&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x387d914)
#<!-- -->41 0x000000000422d4cf clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const (.part.0) Job.cpp:0:0
#<!-- -->42 0x00000000041f38c5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&amp;, clang::driver::Command const*&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41f38c5)
#<!-- -->43 0x00000000041f432d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41f432d)
#<!-- -->44 0x00000000041fc0a5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41fc0a5)
#<!-- -->45 0x0000000000c41ad5 clang_main(int, char**, llvm::ToolContext const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc41ad5)
#<!-- -->46 0x0000000000b24944 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xb24944)
#<!-- -->47 0x00007fda3d229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#<!-- -->48 0x00007fda3d229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#<!-- -->49 0x0000000000c3d3be _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc3d3be)

</details>

[yujincheng08]

@EugeneZelenko Hi, I also think it's related to concepts since this issue does not exist when I am not using concepts.

[llvmbot]

@llvm/issue-subscribers-c-20

Author: LoveSy (yujincheng08)

### Description Maybe related to #86769, but I have merged its fix #86914 and still crash.

Minimum reproducible example:
https://godbolt.org/z/3cd8nYMh5

Assertion

clang++: /root/llvm-project/clang/lib/AST/ExprConstant.cpp:15828: bool clang::Expr::EvaluateAsConstantExpr(clang::Expr::EvalResult&, const clang::ASTContext&, clang::Expr::ConstantExprKind) const: Assertion `!isValueDependent() && "Expression evaluator can't be called on a dependent expression."' failed.

Stack dump:

<details>

0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -Dtest_EXPORTS -fcolor-diagnostics -fno-crash-diagnostics -O2 -g -DNDEBUG -std=gnu++20 -fPIC -MD -MT CMakeFiles/test.dir/foo.cc.o -MF CMakeFiles/test.dir/foo.cc.o.d @<!-- -->CMakeFiles/test.dir/foo.cc.o.modmap -o CMakeFiles/test.dir/foo.cc.o -c /app/foo.cc
1.	/app/foo.cc:6:8: at annotation token
2.	/app/foo.cc:5:10: parsing function body 'y'
3.	/app/foo.cc:5:10: in compound statement ('{}')
 #<!-- -->0 0x00000000039391d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x39391d8)
 #<!-- -->1 0x0000000003936ebc llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3936ebc)
 #<!-- -->2 0x000000000387d468 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #<!-- -->3 0x00007fda3d242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #<!-- -->4 0x00007fda3d2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #<!-- -->5 0x00007fda3d242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #<!-- -->6 0x00007fda3d2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #<!-- -->7 0x00007fda3d22871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #<!-- -->8 0x00007fda3d239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #<!-- -->9 0x0000000007499998 clang::Expr::EvaluateAsConstantExpr(clang::Expr::EvalResult&amp;, clang::ASTContext const&amp;, clang::Expr::ConstantExprKind) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7499998)
#<!-- -->10 0x00000000064af45e clang::ActionResult&lt;clang::Expr*, true&gt; calculateConstraintSatisfaction&lt;calculateConstraintSatisfaction(clang::Sema&amp;, clang::NamedDecl const*, clang::SourceLocation, clang::MultiLevelTemplateArgumentList const&amp;, clang::Expr const*, clang::ConstraintSatisfaction&amp;)::'lambda'(clang::Expr const*)&gt;(clang::Sema&amp;, clang::Expr const*, clang::ConstraintSatisfaction&amp;, calculateConstraintSatisfaction(clang::Sema&amp;, clang::NamedDecl const*, clang::SourceLocation, clang::MultiLevelTemplateArgumentList const&amp;, clang::Expr const*, clang::ConstraintSatisfaction&amp;)::'lambda'(clang::Expr const*)&amp;&amp;) SemaConcept.cpp:0:0
#<!-- -->11 0x00000000064afc42 CheckConstraintSatisfaction(clang::Sema&amp;, clang::NamedDecl const*, llvm::ArrayRef&lt;clang::Expr const*&gt;, llvm::SmallVectorImpl&lt;clang::Expr*&gt;&amp;, clang::MultiLevelTemplateArgumentList const&amp;, clang::SourceRange, clang::ConstraintSatisfaction&amp;) SemaConcept.cpp:0:0
#<!-- -->12 0x00000000064b027a clang::Sema::CheckConstraintSatisfaction(clang::NamedDecl const*, llvm::ArrayRef&lt;clang::Expr const*&gt;, llvm::SmallVectorImpl&lt;clang::Expr*&gt;&amp;, clang::MultiLevelTemplateArgumentList const&amp;, clang::SourceRange, clang::ConstraintSatisfaction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64b027a)
#<!-- -->13 0x00000000064b5c0c clang::Sema::EnsureTemplateArgumentListConstraints(clang::TemplateDecl*, clang::MultiLevelTemplateArgumentList const&amp;, clang::SourceRange) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x64b5c0c)
#<!-- -->14 0x0000000006bf7558 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&amp;, bool, llvm::SmallVectorImpl&lt;clang::TemplateArgument&gt;&amp;, llvm::SmallVectorImpl&lt;clang::TemplateArgument&gt;&amp;, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bf7558)
#<!-- -->15 0x0000000006bfda59 clang::Sema::CheckTemplateIdType(clang::TemplateName, clang::SourceLocation, clang::TemplateArgumentListInfo&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bfda59)
#<!-- -->16 0x0000000006c005b7 clang::Sema::ActOnTemplateIdType(clang::Scope*, clang::CXXScopeSpec&amp;, clang::SourceLocation, clang::OpaquePtr&lt;clang::TemplateName&gt;, clang::IdentifierInfo*, clang::SourceLocation, clang::SourceLocation, llvm::MutableArrayRef&lt;clang::ParsedTemplateArgument&gt;, clang::SourceLocation, bool, bool, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c005b7)
#<!-- -->17 0x00000000062e505b clang::Parser::AnnotateTemplateIdTokenAsType(clang::CXXScopeSpec&amp;, clang::ImplicitTypenameContext, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62e505b)
#<!-- -->18 0x00000000061e2be0 clang::Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(clang::CXXScopeSpec&amp;, bool, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e2be0)
#<!-- -->19 0x00000000061e57fe clang::Parser::TryAnnotateTypeOrScopeToken(clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e57fe)
#<!-- -->20 0x00000000062f6b4b clang::Parser::isCXXDeclarationSpecifier(clang::ImplicitTypenameContext, clang::Parser::TPResult, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62f6b4b)
#<!-- -->21 0x00000000062fc1a7 clang::Parser::isCXXDeclarationStatement(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62fc1a7)
#<!-- -->22 0x00000000062d1041 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector&lt;clang::Stmt*, 32u&gt;&amp;, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d1041)
#<!-- -->23 0x00000000062d2927 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector&lt;clang::Stmt*, 32u&gt;&amp;, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d2927)
#<!-- -->24 0x00000000062d3831 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d3831)
#<!-- -->25 0x00000000062d514a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x62d514a)
#<!-- -->26 0x00000000061effe1 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&amp;, clang::Parser::ParsedTemplateInfo const&amp;, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61effe1)
#<!-- -->27 0x000000000622780c clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&amp;, clang::DeclaratorContext, clang::ParsedAttributes&amp;, clang::Parser::ParsedTemplateInfo&amp;, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x622780c)
#<!-- -->28 0x00000000061e3f7e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec&amp;, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e3f7e)
#<!-- -->29 0x00000000061e4773 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61e4773)
#<!-- -->30 0x00000000061ebbe6 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&amp;, clang::ParsedAttributes&amp;, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61ebbe6)
#<!-- -->31 0x00000000061eca8d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr&lt;clang::DeclGroupRef&gt;&amp;, clang::Sema::ModuleImportState&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61eca8d)
#<!-- -->32 0x00000000061df76a clang::ParseAST(clang::Sema&amp;, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x61df76a)
#<!-- -->33 0x00000000041e9fa8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41e9fa8)
#<!-- -->34 0x0000000004468cd9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4468cd9)
#<!-- -->35 0x00000000043f23de clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43f23de)
#<!-- -->36 0x000000000454bd5e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x454bd5e)
#<!-- -->37 0x0000000000c4463c cc1_main(llvm::ArrayRef&lt;char const*&gt;, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc4463c)
#<!-- -->38 0x0000000000c3d8ca ExecuteCC1Tool(llvm::SmallVectorImpl&lt;char const*&gt;&amp;, llvm::ToolContext const&amp;) driver.cpp:0:0
#<!-- -->39 0x000000000422ced9 void llvm::function_ref&lt;void ()&gt;::callback_fn&lt;clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const::'lambda'()&gt;(long) Job.cpp:0:0
#<!-- -->40 0x000000000387d914 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref&lt;void ()&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x387d914)
#<!-- -->41 0x000000000422d4cf clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const (.part.0) Job.cpp:0:0
#<!-- -->42 0x00000000041f38c5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&amp;, clang::driver::Command const*&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41f38c5)
#<!-- -->43 0x00000000041f432d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41f432d)
#<!-- -->44 0x00000000041fc0a5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x41fc0a5)
#<!-- -->45 0x0000000000c41ad5 clang_main(int, char**, llvm::ToolContext const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc41ad5)
#<!-- -->46 0x0000000000b24944 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xb24944)
#<!-- -->47 0x00007fda3d229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#<!-- -->48 0x00007fda3d229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#<!-- -->49 0x0000000000c3d3be _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc3d3be)

</details>

[zyn0217]

I presume this is different from #86769 since it also causes crashes prior to clang 18.
https://godbolt.org/z/5TWKhjqGE
@ChuanqiXu9 in case you have an interest in looking into this, as it appears to be module-specific?

[yujincheng08]

Hi, any update on this issue?

[ChuanqiXu9]

Hi, any update on this issue?

Not yet... I didn't have time to lookup at this..