<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/140509>140509</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Clang crashes with ICE on dependent expression in __thread static initializer since clang 9.0.0
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          mariete1223
      </td>
    </tr>
</table>

<pre>
    ## Assertion

```
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/Expr.cpp:3345: bool clang::Expr::isConstantInitializer(clang::ASTContext&, bool, const clang::Expr**) const: Assertion `!isValueDependent() && "Expression evaluator can't be called on a dependent expression."' failed.
```

## Stack dump

```
Stack dump:
0.      Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -x c++ <source>
1.      <source>:6:66: current parser token ';'
2.      <source>:5:22: parsing function body 'get_ref'
3.      <source>:5:22: in compound statement ('{}')
 #0 0x0000000003f9b248 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f9b248)
 #1 0x0000000003f98ed4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f98ed4)
 #2 0x0000000003eddb08 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000078740da42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x000078740da969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x000078740da42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x000078740da287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x000078740da2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x000078740da39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x000000000789df6f clang::Expr::isConstantInitializer(clang::ASTContext&, bool, clang::Expr const**) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x789df6f)
#10 0x0000000006995e0d clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*)::'lambda'()::operator()() SemaDecl.cpp:0:0
#11 0x00000000069ee213 clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69ee213)
#12 0x00000000069f5502 clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69f5502)
#13 0x000000000666a61a clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x666a61a)
#14 0x0000000006679ee9 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+++0x6679ee9)
#15 0x0000000006682bb7 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6682bb7)
#16 0x0000000006683079 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6683079)
#17 0x0000000006740d5a clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6740d5a)
#18 0x0000000006741a4d clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6741a4d)
#19 0x0000000006749773 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6749773)
#20 0x0000000006749f3a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6749f3a)
#21 0x0000000006643f53 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6643f53)
#22 0x000000000667a8ed 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+++0x667a8ed)
#23 0x0000000006755768 clang::Parser::ParseDeclarationAfterTemplate(clang::DeclaratorContext, clang::Parser::ParsedTemplateInfo&, clang::ParsingDeclRAIIObject&, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6755768)
#24 0x00000000067632af clang::Parser::ParseTemplateDeclarationOrSpecialization(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (.part.0) ParseTemplate.cpp:0:0
#25 0x000000000676365a clang::Parser::ParseDeclarationStartingWithTemplate(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x676365a)
#26 0x0000000006683220 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6683220)
#27 0x000000000663fc1c clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x663fc1c)
#28 0x0000000006640b0d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6640b0d)
#29 0x0000000006632eda clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6632eda)
#30 0x0000000004946ce8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4946ce8)
#31 0x0000000004c3ecb5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c3ecb5)
#32 0x0000000004bbd8fe clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bbd8fe)
#33 0x0000000004d31799 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d31799)
#34 0x0000000000dacd0f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdacd0f)
#35 0x0000000000da2eda ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#36 0x00000000049adfd9 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
#37 0x0000000003eddfa4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3eddfa4)
#38 0x00000000049ae5ef 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
#39 0x00000000049703bd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49703bd)
#40 0x000000000497144e 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+++0x497144e)
#41 0x0000000004979735 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4979735)
#42 0x0000000000da8c78 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda8c78)
#43 0x0000000000c2e674 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc2e674)
#44 0x000078740da29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#45 0x000078740da29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#46 0x0000000000da2985 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda2985)
```

## Program

```
template <typename T>
class Wrapper{
};
template <typename T>
Wrapper<T>& get_ref(){
    static __thread Wrapper<T> * my_wrapper = new Wrapper<T>{T{}};
}
```

## To quickly reproduce

https://godbolt.org/z/3cafrMj63
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzsWt1u27gSfhrmhrAhU_8XuXCcek-KLlrUQffSoMiRzY0sakkqdfbpD0jJliU7Tl3EPQucLRxXljjDb74ZDkckqdZiVQLcovAOhfc3tDZrqW43VAkwMCHEv8kkf7lFxEfEx1OtQRkhS-RN7Sfy2o83ZQUtV4jc2Y8_xYjMlZQGkXlRPG9GlZJ_Atv9RGRupCw0IvNWbF6IDJH5dPGIyPzDtlJjVlXIn_p-EFp1mZQFbtr6U-RPbZPmSuiZLLWhpXkohRG0EH-DQiQ5aDxdPM5kaWBrEIkQmTlt9n9mJY_Ukqn7pM1j2_vebGxtJROhv9GihnuooORQGkQS295pjzAixOoBra0EPNOipkYqzGiJSGxwBpjRogCOZYkp5jstGPZSY0QIIjHOqSiAjwdU20_jj4Wh7AnzelMdO-TgmW-feWPkpV-UXCm6wVSt6g2URre-kpX1DZObShSgRrCtCqksj42DRnTHgB4ZVZdPiMwzUXb-s27HoxX_TlU-CvBohUfS6qVVZbXXpqrNWOPRxrofj0bbJBpRvRnpl9LQLfLvRWmgwKO8lKNnUJnUYJ_j0QKPRivGRjZe2JqKEvn3Z_HaxrqklV5Lg0c5k4VUIy7oqpTaCKabPpiiet2_vcWstQP5My1rxQD5H5A3nVjievf8aWT_7BdmtVLWeRVVGhQ28glKjEiM_Dv77U3JCXEb04RYcSsmyhXO65K5CLPDzcqvwCwV5I0O_6wOUWLLhKxLjrWhBqxnsQvKGMV3KL63FyRFnvW172Fv6-3--XmakSDBbli6MaBfdHPxRYnSuCh6VJQBIknXSNHvS6mNArppx5SwwyBten2XcELkztu28DrwkwH4BHhwCvysAFrW1edyIVYlLRBJ6tKlOo4Labu4BlQLpoNKelCB88xL8MwG3ldg8hnUS4PtP7TkhctZLYe9Nm3mavOh5_4a_X6rP07iwOM0ICHxWqOabLpNomUUjApR1tvRqqybB2ys5ThykJ1IBzjoK0yjNGe4MmsFlC-fRFFcpt3Jd9rDIdwgjvBKOwouhR3EUac46ismSZz7mGZSmcvUOsFObXykdpJdrHCSdQqTvkI_hTS6TKET6RSmhwEWJynPo_wKk2RfYTsr9ifJ9x5LrTGNqXbU93JWlKYhePwQ2QI2tB34a2BPM7mpCjDwjSpBswLugRVUUVe59Kz-RpV91tjS3EIkLugm49QlzWR_X1ag7Dze3mumfNuvVTAYnhbypA8ZgEz8d4f83sS3ODviSd-KPAw9ctqKKecHwfUoG5CHyPewj4KqvduE3BWMcrA7o_yeUVFEowk9hPTFzeUH1wfOmOYG1O63VNOST41RIqsN6GNzaRsy0cDoox74I2yqghp4KHO5G2PnpOZSfaXlCiznV4qFhpiOtqBPW5wCpG_S9puSddUn5ktT89iniwrYsZ0dc_uUdMxDj_fL-D1uv3CF1SfJ2gE3DNJfzbzjtmM-7DOfkCyLz5q7EDabvJpD3iJ4SMdJet92wHGLE5PKWWrfctIVqHfkdtRHA-p9L3476P9ZpP96Ci1JHYVxj0Jb_ITn0-1i9xLzWQ0zby_ZdnX_YkOL4hswm2z92aHBZrOLJBLU9s3pB3KFFfoxH53ME5f76P190LDc-SAZ-GBCA_4TPvinkH4NwiwlHWHpgLA0jv2zBszaV_A9cXeSvyCSXKuoaSDtARNvCDj3z4-yebvkMAT8ZsV2HCtMVnC1QLaGdGb2y-oo8PPwvF92Zt5DLmx9OkzLB9XI9aq1T9RAN_I_CX21ysER0tFFBjUbTeD8uP-3Zvvpms1y2zHff8mIwzCOkoteMnbWX1ZFXMrigWO_Th8ePmfNOv1bZF9eekwZA61t8IhcWIavkCscyZ0L-i8sceQTmp_lakfVgSs-KwfZvtX-T2q607SNK6rM2LO_esCP1yFIOCQheqP6OjB-Yagyolz9Icz658Lxpwi4QmQ4s7vIOKrqCfH-rerfqurJbrXYUtiv6iM_ZxN2lsIPWwOqpMWrVL4HFUfz1HW4cNZ2XCSDosTLvPOz7KOsPsEzFMeLZJ8r-lcNX8ygpN5Py18hP1lQdwtxv0teF_CwqaQyrra70phqzOxISAcBQYAfJxq3w5sMcfcXB65VMTeQ9oD7G2FBGkQMejP0THL4DcqpKx93i5XAagPtrd2277vCbIF0MHsVb8B8YFl4CHOubOIp-QmcV0LYYOgQ9orMIMt4kkOfyKbPB7cHweA0l6-bdJX4bXF2VvQKtoD7kzhN-wvVDm9nzPM-4SbnjL1KCmrxdeh7tY7HKeNejhmbLDdU9F_bp0rRF5dGZmxNDzZ0bFqZ4f49MsPPUvDrGNGg7GwIBza4DLKjfTZ5dHnh9ALEw6YqThrkMksnYnW0E_XBe1uKuRLPoI7LJz_qJwnKc546Sg6U7jbv3Ya9P3NPd1tHH5omjBZFRtnTMi_7ib3puA2d2WQmNxta8uEoPuk9bdp2srK9U0vAATlGiXLVTheNa_cCyyXbbieT5kdGtWBL7Zq3FPYa2xtLo6gwevd4oI4WhR0KzTJQ-9w2OdjU6R2oQad32T5YQ9vN-Y8yO-GMeLilntPD3f9TG-fNk691uaA5FC89Ls_77QpHBBrEXcAng-CCEHovKP93wTF4tzkdBWmftdjzM_4qa85r9Ghm3FHZS90DQdvgtcWdM02nvXLmSjvkrdn7UAoGxUw8CQK4lJSPMtOvM_JRZp-ENj1GzuXifQRUVFjnu9MtP05iGya_hEpLVkflZEBlGvvha7DvD657BcKJyuA1F_xCKq9QrTp6OvLIYA5PWNwW1btKZAfepZJpmwjenqHfvfawyDrcverPYwSiOMAW8Xt33KjuOh6cuiIpTy88xuVEOoXhUCEEHl4urcxSG6rM8sCsH-4CgoMuomGhliYhbpS_v5-s8rbrk4dg2zOtxydgTbtihZE_My8VlHQD-LE51MkKqjX-Q9GqAoXiOysa3yP_7g25nYQ_e2zGFN4f1HTB5DRhjN1BTMHwctmcn8N9QYzIFG9elt-buxj597iE74NWKL57bA9w7rDZi9eIeJT4r1qwp-IFK6iU5DWDpsHamModjCRzROYryTNZmLFUK0TmfyMy9xnN1e9_Rv4Nv_V56qf0Bm4ncRBHfhqk3s36NgHOwpwRAiyf8Mgjuc_CJGO-FyX5hAU34pZ4JPTCSerFJAi9cZ5QzhMOeUB5kAY5CjzYUFGM7VC3fd8IrWu4nQRe6KU3Bc2g0O4cOiFtEBAU3t-oW3eCPKtXGgVeIbTRnQojTAG3M9scuzO9oPF3Ydb4YfYBy_Lk4Wosys4trZtEd3IJa1GydurE6dgbeze1Km4HFAqzrrMxk5vuSPvgoLuzTiMybw18viX_DQAA__9Ul5Yr">