<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/111294>111294</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [Clang] Assertion `(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur in error-recovery path."' failed.
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          yijan4845
      </td>
    </tr>
</table>

<pre>
    Compiler Explorer: [https://godbolt.org/z/M6carxE9d](https://godbolt.org/z/M6carxE9d)

Attempting to compile the following program with Clang Assertion Trunk:
```c
enum {
    SHORT_FIXED_FRACTIONAL_BITS= --11,
    SHORT_FIXED_ONE= 1<<SHORT_FIXED_FRACTIONAL_BITS 
};
```

Stack dump:
```
clang: /root/llvm-project/clang/lib/Sema/SemaExpr.cpp:15334: clang::ExprResult clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*): Assertion `(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur in error-recovery path."' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
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 -O3 <source>
1.      <source>:4:1: current parser token '}'
 #0 0x0000000003b99d28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b99d28)
 #1 0x0000000003b979ec llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b979ec)
 #2 0x0000000003ae61f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000076d228442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x000076d2284969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x000076d228442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x000076d2284287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x000076d22842871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x000076d228439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x0000000006c2727c clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6c2727c)
#10 0x0000000006c27735 clang::Sema::ActOnBinOp(clang::Scope*, clang::SourceLocation, clang::tok::TokenKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6c27735)
#11 0x000000000669933d clang::Parser::ParseRHSOfBinaryExpression(clang::ActionResult<clang::Expr*, true>, clang::prec::Level) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x669933d)
#12 0x00000000066a3b0a clang::Parser::ParseConstantExpressionInExprEvalContext(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66a3b0a)
#13 0x000000000665f4ad clang::Parser::ParseEnumBody(clang::SourceLocation, clang::Decl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x665f4ad)
#14 0x0000000006667328 clang::Parser::ParseEnumSpecifier(clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, clang::Parser::DeclSpecContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6667328)
#15 0x0000000006663656 clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6663656)
#16 0x000000000661f964 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x661f964)
#17 0x00000000066203ce clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66203ce)
#18 0x0000000006627b63 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6627b63)
#19 0x0000000006628a4d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6628a4d)
#20 0x0000000006628ef0 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6628ef0)
#21 0x000000000661af32 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x661af32)
#22 0x00000000044f0998 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44f0998)
#23 0x00000000047aa2e9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x47aa2e9)
#24 0x0000000004728c2e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4728c2e)
#25 0x000000000488fb6e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x488fb6e)
#26 0x0000000000cd801f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcd801f)
#27 0x0000000000ccfd2a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#28 0x0000000004534669 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
#29 0x0000000003ae66a4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3ae66a4)
#30 0x0000000004534c5f 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
#31 0x00000000044fa59d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44fa59d)
#32 0x00000000044fb68d 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+0x44fb68d)
#33 0x0000000004502fb5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4502fb5)
#34 0x0000000000cd4eef clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcd4eef)
#35 0x0000000000ba49a4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xba49a4)
#36 0x000076d228429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#37 0x000076d228429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#38 0x0000000000ccf7de _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xccf7de)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzkWltz2ziy_jXwC4oqErw_-EHWZeI5nnHKcp06byoQBCWMSYAHAB15f_0WQMomaFmJZ5XZndpUEvHS6P7660ajSQIrxXac0msQ34B4eYU7vRfy-oX9gXmURfFVIcqX64VoWlZTCVeHthaSShDOIYhv9lq3CoRzgNYArXeiLEStZ0LuAFr_A6D1bwnB8rDKSxAvAcp-XBzlwF8Cf97_P9eaNq1mfAe1gKQHA_WewkrUtfhmbrRS7CRu4Dem93BRY76Dc6Wo1Exw-Cg7_mQM90oTv_9L-nPKuwaC9KY_gxDCzZf7h8ft-vb_Vsvt-mG-eLy9_31-t725fdyAcAk9LwgAWpyWv_99ZWQCEC5AuDijCQ5o0iUIbybIxt5vNCZPsOya9r0H_Skx7tqQoLUUQgO0ruvnxmul-IMSc9pLoHXNCoDWG9rg4Wd1aOWMtEZ1EIdhZLQc1YFwbm4_UNXVenzVjrdHNx2ryxvG71uAsrEEES0FaA7QwhkoOknonSDYhGVy84ZxLF_uWyqxFvJ_GC8nAgbMe52vV3OD_S3mhh2U3X3ZGAEPhCsiuMaMq5WUQiqAMoByCNIFSBfw4byYlUQJQAkECG32oqtLKHj9AgUhnYSMQ2rEPUmJeKbyBbZY72cAIYBSWGFW03LWx-rr3Wq-WUHVFQ3TEMOi20FJWyG1ye3JDGF63xUzIpohou8Dy5TqqAJoDTEvIeOk7sp-ahCJ1R4WmDxpiQk1rLWStlIQqhQtobKxMJfNSKyUIAxrWkLZcaiIZK2efZiA_gz4-ddhymG56xrKtRpSULQ25Yaa4dFjzRjS0MPHGClP24mJ1gXjx9vQ25XfsKy8CHo76AmjEbet0dvpttMzBb3GsAA975AlHlaNp164xgcQLhnXtIZexYX3TGUhFDX3obeBnrcjxNNC1GSPGQfh8ixSI6w4btVeaOhVRNRCeiXDOy6UZkT1NizH7uX7EIJwMZAbrnq6AkOXczmcm6kW2OnWSUm5hi2WikqoxRPlEKDUFAaUDkUGoNCH_sE__gmLPC9RBm1W2HmgXlR_8FUyrm3MHvvAZ29CEn_bCqUlxY3N5wVkXPfZnf3LkQPoxj8MwF4ruEEeTJCnOSWnkC9qinnX3vMN23FcA5R13C5PJayF0X9ZnAaGgxM5ODFNgiqDCxPjh2Fe98C-YF7Wxlw2sOfILATX9KCHqurbf68mwsFEmpQIZVGEYuQPTvW1-ZAl2yTyasa7g7fjXX-DzJSYJRa4HeLAjlydeZJXBLZ6Lykut0-srj9nwI53DMRT0FGawJ2yXHwWfJQmju7E1Y2ytAohLkw9_JRmO9DRnL7THBSf1hkUjs7M1RnmNE8-p9MOcXTm46xLCEpRSv4Gq-3lpuLg81vTh8LAn5KShvFpUuZE3_MLkaLFU3_waIrwv52UNIwdUpw6miR5HoblGMdXu4KMjh--bO6rPtIGI1XK-jymaU4Mjr7HA-HitK9adnbVct1uJSX90R19pvVl3e-9c9xHrvs4LHx81v2F4Epjrt98v-XmePWM66FKu2SMNTy-tHSBlVlJNb2wbxa641vo-hZXET4f2hXvmhtRvkyS_lx2LympL56mPVTHl8j1JUlDlH3Xl01LCauYXVU_45AZN7Qy50yUj7Rpa6zpLa_MIyRX-v2oOTG98QjJhzqPll-z6KKUWsYcSuMJpWESJ2f9NQCxtKS9-qNcav8sexfl7UPJO6xpb3uutbxjJl7TunvbtDUjTJupynFDf1I0DNlONBI3GkGVJ9F3o3Ev1x23xXZJq1uuqexb3Ok46y8rOm0e605G5rsSjO8-Du67YF2ULMuFQ1bqkoX8kNAfTV2HM8aZfrd8_RTKpnn2cymzjDiUZRPK0iIJzxfQQ59OI-r-GpouS4Tx0yEinxCR4ej8qvgoWtuL9EvdmIH7Fv9_R79q6TY5RvAXKbr2gVa2w5l6_dZo_ibKrqa3TSvksSlILs2AcXDMAPKnDNDKP8vAmkml__Y00Mp3aJh0vgGuQvSOhvnmcdI82Pec1pVCiPrt97Ilz4Bx0DqNahRVfp47DdBClPQXyvvW-9hsU9JpOlwa3k1eCuMAwcHoNJxRijGi-RjjWprFlJcnQF4cXm_dgRe58FBGEHUp7A3e2g6f0NMsfuzPhXN2QOi44PRsUZZVRULdp0YL9s2T59cuNzvn6YXr7oDMge40OD4pMz-oICHBtsFm9OiF4lxK_GKLxoLssTx21vPj06JzDS3gs2DlpT3o8TkOpK4DpCoRhkfCF8GjrQIjNzYNruv_pUQLaZrKk97YOvI2xOgYGs7R80QOS8meqXz_9s_Achb2KA6jJMktJSO91dDxbKVl1d4dvkLY98YgnBNc1wUmT9uKu2W8tz3kzSJYiKbBvJxO3pPRU3qQE62xjg0HI360ZHw3LA59aF8HbLfkcAiC_qTAipGtsuIDi46wubDVEjOtjrcn6nBdm3kg5Oi-EZm_lW-bPj3ndghAaY2bosQApW9Uoez40vhXUZyORz594ZvgaBSKU691-zsPHd_gitYvDp3nQ3fRt9c91nHOu98HTHKRuIL_zclh6J61WOqZfy4L3M8TUVThOC8_JM5GDb9bE49sOqV7MtAIfPTq4Yzo3GlhRr5drDkwDjupNG1giiT7NCO_ikJ9TMevojDP9A4d58rxawa0mJng2w8vP87gkCY_mUdDk8Oj22TFPqqK-CPMy9Gx0xqc6Ak-4v8v5PGSHUhPjMNcNOlAIkqHYnbsQY7IbRGZDyXg-8vzBbsOg8kB7XR8foGjHEfQwL2c1V6pY3X6BS0v809-UrRDHJ3Tb2c5jXy43ZphW6Wx1NuRWz9shUaulWzapaUlhb3-C8bJqn21e8z0fsPG63YXWA3PB5AMOd_v2uj3E9EDM1lUUhiEkYHWKQq9Z6gFVJRCNmrdBzOvO6Yk1Z3k1Mw6M3iyf-eqvA7LPMzxFb0OUpSh0E_98Gp_HUUoLipSpTgLMMFFktAg9PMiDPMoTSm6YtfIR1Hg-0mQ-LGPZjRBflYWJY7C2I_8GEQ-bTCrZ2ZOzITcXdm9ItdBEKA8uqpxQWtlt30hNLCFQLy8ktd2i0nR7RSI_Joprd5UaKZru1fM7rAC8fI_ecPNVSfr6z-_o2Yg6vka_TMAAP__yOADhw">