<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/108326>108326</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [Clang] Assertion trunk crashes at tryVectorConvertAndSplat(clang::Sema&, clang::ActionResult<clang::Expr*, true>*, clang::QualType, clang::QualType, clang::QualType, unsigned int&) 
        </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/EW9bxMose](https://godbolt.org/z/EW9bxMose)

Attempting to compile below program with Clang Assertion Trunk:
```c
typedef _Bool bool4 __attribute__((ext_vector_type(4)));

int main( ) {
    bool4 x = 0;
    x != 0;
}
```

Stack dump:
```
clang: /root/llvm-project/clang/lib/AST/Expr.cpp:1928: bool clang::CastExpr::CastConsistency() const: Assertion `!getType()->isBooleanType() && "unheralded conversion to bool"' 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 <source>
1.      <source>:5:11: current parser token ';'
2.      <source>:3:13: parsing function body 'main'
3.      <source>:3:13: in compound statement ('{}')
 #0 0x0000000003b2e8d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b2e8d8)
 #1 0x0000000003b2c59c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b2c59c)
 #2 0x0000000003a7ace8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000073b511842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x000073b5118969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x000073b511842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x000073b5118287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x000073b51182871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x000073b511839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x00000000079e84f0 clang::CastExpr::CastConsistency() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x79e84f0)
#10 0x00000000079e933f clang::ImplicitCastExpr::Create(clang::ASTContext const&, clang::QualType, clang::CastKind, clang::Expr*, llvm::SmallVector<clang::CXXBaseSpecifier*, 4u> const*, clang::ExprValueKind, clang::FPOptionsOverride) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x79e933f)
#11 0x000000000675dd21 clang::Sema::ImpCastExprToType(clang::Expr*, clang::QualType, clang::CastKind, clang::ExprValueKind, llvm::SmallVector<clang::CXXBaseSpecifier*, 4u> const*, clang::CheckedConversionKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x675dd21)
#12 0x0000000006b1ec88 tryVectorConvertAndSplat(clang::Sema&, clang::ActionResult<clang::Expr*, true>*, clang::QualType, clang::QualType, clang::QualType, unsigned int&) SemaExpr.cpp:0:0
#13 0x0000000006bbc1c0 clang::Sema::CheckVectorOperands(clang::ActionResult<clang::Expr*, true>&, clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6bbc1c0)
#14 0x0000000006bbc40f clang::Sema::CheckVectorCompareOperands(clang::ActionResult<clang::Expr*, true>&, clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation, clang::BinaryOperatorKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6bbc40f)
#15 0x0000000006bc57bf clang::Sema::CheckCompareOperands(clang::ActionResult<clang::Expr*, true>&, clang::ActionResult<clang::Expr*, true>&, clang::SourceLocation, clang::BinaryOperatorKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6bc57bf)
#16 0x0000000006bcdb75 clang::Sema::CreateBuiltinBinOp(clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6bcdb75)
#17 0x0000000006bcf2dd clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6bcf2dd)
#18 0x0000000006bcfab1 clang::Sema::ActOnBinOp(clang::Scope*, clang::SourceLocation, clang::tok::TokenKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6bcfab1)
#19 0x000000000664e807 clang::Parser::ParseRHSOfBinaryExpression(clang::ActionResult<clang::Expr*, true>, clang::prec::Level) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x664e807)
#20 0x00000000066519c9 clang::Parser::ParseExpression(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66519c9)
#21 0x00000000066d2ff9 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66d2ff9)
#22 0x00000000066c9ae0 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+0x66c9ae0)
#23 0x00000000066caa10 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66caa10)
#24 0x00000000066cb8e9 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66cb8e9)
#25 0x00000000066cd06a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66cd06a)
#26 0x00000000065e0f93 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x65e0f93)
#27 0x000000000661661d 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+0x661661d)
#28 0x00000000065d4c4e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x65d4c4e)
#29 0x00000000065d53fe clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x65d53fe)
#30 0x00000000065db987 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x65db987)
#31 0x00000000065dc85d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x65dc85d)
#32 0x00000000065cfe4a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x65cfe4a)
#33 0x000000000447ab58 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x447ab58)
#34 0x000000000470c0b9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x470c0b9)
#35 0x000000000468f96e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x468f96e)
#36 0x00000000047f52be clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x47f52be)
#37 0x0000000000cbcb7f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcbcb7f)
#38 0x0000000000cb5dca ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#39 0x00000000044bdfb9 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 0x0000000003a7b194 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3a7b194)
#41 0x00000000044be5af 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 0x00000000044844b5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44844b5)
#43 0x0000000004484f1d 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+0x4484f1d)
#44 0x000000000448cb65 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x448cb65)
#45 0x0000000000cb9f75 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcb9f75)
#46 0x0000000000b8bc84 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xb8bc84)
#47 0x000073b511829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#48 0x000073b511829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#49 0x0000000000cb587e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcb587e)
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/eJzsW01z4zbS_jX0BSUXCX4ffJBlK5m8k_K8I1c2NxUINmXGFMAFQI-8v34LACUTtKSxZzjZze6mHA8NAo2nn240Gh8kUtYbBnDlxddefHNBOvXAxdVz_QdhURbFFwUvn68WfNvWDQh0u2sbLkB44Rx58fWDUq30wrmHlx5ebnhZ8EZdcrHx8PIfHl7e_i0vdr9yCV584-Hs7dVx7vk3nj-3v-dKwbZVNdsgxRG1YFABDf-CWsE3gmzRl1o9oEVD2AbNpQShas7QvejYo-7QCkt8-0Pt3-q5hRIqtL7mvEEF502E1muilKiLTsF67eHMwxns1PoJqOJirVt4OIs0PvsTXg-B1kyhLamZhzPk4Rx5af8aIdR3sENeeIP8Q0P9Zoc8HLjFXnozAj3sZ6UIfURlt21fK2f_pJoJYyW8FJwrDy-b5mk7awX_A6j-09bAy6YuPLycr-61AXatuKStlhrkONPtNWq0l-aF8wWRSld7-WvBmaylAkafDWE5opxJpRu_WEIDw8EG1L2l0MP5zAtva6m5B8JeipGHEw8nyMO4Yw8gSFNCqUU-gZBalOIGlIexh1NUkbqB8tJq_enj7Xx1i2RXbGuFCCq6DRLQcqF0q5H71eqhKy4p3_bcvKaolrID6eElIqxENaNNVwJSD4CoIPIBFYQ-KkEoeHiBWgGt4BSkhBJJ3glbrFsSKTmtiYISiY4hSUXdqsuTpvQvPT__1Ps1EZtuC0zJ3pi8NcbrB-QM9gOyN-iM7CmXM2W8Hy8L7ZD2NZptyi9EVLMIzTZoxrVE0rZabqfaTl1KNNtqFtBstsuSGZHbmXxmiuy88KZmCho0qxifPYEouAT9Hs1WaDbbUDpTnDf0Qbt_eHMWqa4sGWnlA1doVlHecDEra7JhXKqaStuH4dgp9sJFT2x4a6kKNFVOcTiPtfcGmi7aCQFMoZYICQIp_ggMeTjVowynVgI-IiHUEvQv01KHnapj1PixDodahB3lvYzwrIyamZDFO1YiqYgCbU5knD3VASK90Q_7iIc8HPrI3_n7_8ICQ1ZmyLioGXTyWdqHT6JmyjjQvfXC7KWSIF_WXCoBZGsG1ALVTNnhlX23G3n42t_1wBzkwQg5jXN6DPlCj_muvWOresNI4-GsY2YiKlHDtfxpcWoYDk7s4CQpoZChhXa4z0D5E4hnC-xnwspGd5f17Dl1Fpwp2Kk-Yvrm_0MXYd9FGhZxEGQRjrHfK2VD7i5L1kk0a2rW7WYb1tkX9FLyy8QAN00c2JErM0_yiqJWPQgg5fqxbpr3dWDaOx3EY9BRmqCNNFy8F3yUJo7sxJWNs7QKESl0cH6XZNPQkZy-khwU75YZFI7MzJUZ5pAn75Npmjgy86HXpTlkUeV_09w63eDoUbwkXDgM_BHMPAyrIcwP27apaa1GcAUQpWPQoOZ8dd-PkT4nsJFoUOP_O9LYuX8xZuL_alaOik1veK5LX4LKakua5jeToHnhYijk99-viYRVC7Suati3jDovvN3jmR_p4TfSdHCk9-Wnu9awefcEQtQlTBqmeqIdSzjhNEnjssTBENEKtuRgk7057nmfTB0n7rvId6j5QSZYPAB9hHJxyPhsfxNS3TPpUO3MCEkRAM0ypMSz1cqCUXNWrtqGKJdcY4VXnj03CcNnkF2jXFIGxlCiM_nCW03zhuLDRGpmLB2AkAY4SO0HE5XWPHQ1L2hA_eNOZixjCblrQRBWytF4f5fO38fYuPXKJF8fOSVain5pVwlf-3dKv7LkOX4VjdmN_Oqr7Or1NhHwVyB58PK6ZkQ8G9CKi-lHrSXPYTd22aVxWpxj93-8HuXV0Obwmox4LYs0PsGrmfavu7pRNbuu2V07Co7v1ezUhH-sdFoWtJIOC-mIhQqX5XEWtP7lMe0p11F5rMBfiBSts0NKNiaFFCdykjlVd0dd4htIUfzRPtzrRfy_nBRSuNmDk9knSQSZnw5xfDI7EIPnzz-v7ipraY0RpDQ6f3s8ctRuBVD79BGeYOJJzmo3VB_7rvpxkNP8rPqndB5W1AmNTkVXyqwrJlXBIHRUcFPtpMRV9XUVVvvtnNNamOdypbaqXwlNrIkB6mjiZrIJzQn4ZzU5aHEnboA2RJgBOK8UiPl-M1w6m0sn832tZ--ZIe6OTnVfIedsSBgPb9t-CPJob-MakxrA8OsYIBwZgJDgWwzw78L4tGxpMhy2ohFbRQbnB96i30w9sHbNy2cPZ9On8xaMgzYeoS39hJxFu-x3jsdoB220zU_4tuMldtqc3H-1Co6ObvIXg1_l4Zt0vIGqZrU6GtVrttn7Nhdv8dF72OqlNnxgFT-1ezRs9ZEoeBntH-t-a2FKriwVDlduipgESRKUZ_XSJPwkeNeepGjVAn2t6gt5xwfuG0PhSYq_viY556BLLj4TtoEPrJ6edsuqQ7ubhMZlRCP4Ku13YuCoH5gCYY8evn9CeVXjrCnnlIKUgz2xSX3UcOGQlY_IisPq62T1k5DD2cnBPTllY1_7wZRpRoaUuSdwSVwWeXY-n7_dWXdy5-8_gaZpidB6OkQEIyJoFp-Pb_e8NWsOO6kNGbhryd87-KRGCcwhIH6G6vjeyGFB-SsvuwY-bFsu9quCiWdDq6DDgJtOx7SC6PWMb65PnNgT_nHbjRaMg9bJPaMoJUWcOZvrvISfgNm15X41CbRT0Bft72BMhLGH4GB0Mr4o9alfOBnfUugZjpVHQE4Oz_buwHNSvCjJqjwBl0Lb4QcmFWEUjrN4Wp-JfbZH6KiQuAxXMS7A3RYxYF80eTrM8tk5TScOOD0yB7qTUPm0oEVaIUqDdX-v6mVJNBeCPJugsaAPRLwcJ_XbIU4ZXqAnXpdTa2DxOQpkIwXikhK0J3wR3JsocHxl92HbNke1SdzjNi3j9blqjkpRP8HxUx737DmKirIqckPJQO7-lstaGFbNWzvi7J0WL5xT0jQFoY_rirlh3Pbd-80iWPDtlrByPHiPWk-qvh43x6tEczDgR4mabfrJwZr20GC9pruduevjhfOCyJqupanes-hU1gVrJUit5P71SBxpGj0O7BK7f384nLPhez6836Z_cNqQbVESc4dnTxXO9rdYfuHFUXtE_ugGShHk0cAUx-6Z2DefO7YiFTTPDp3nTTfpdRqLdejzUTByLoiJcwzzX-ccmu7Llgh16Z_1AuwSl0VREZ8kzliNvJoT92w6oXvUUFc4tYg-U3XupDCTXz7pFXZcKRwzUrkL6rcw8gsv5Gk6fuHFx1q6N1LOheODB7Sk1sY35-pvZ7B3kx_NY-WukKNoxCMtkpOedTN4dlKDIznBKf7_RB4nTU8NMQ5z8WgCz6v92ec-B9kjN0Fk_upC0qnpecKsQ2NyQDsZn19kBc0icxV9ul6tUKfX8cW7vMzfecfRNHFkZmOZEPlovdbN1lIRodYDtd7cC0RuL_k4S8tSQFb-lHbSYg_97j0dgRDcfEJhSlDVrw8Q7X3e3mm3nzTArtZeVAIKwkhD6ySg2RNSHEkAVA9S976bw8caAlQnGOhRpxuPvhO4KK_CMg9zcgFXQYqTIMBJ7F88XOVZGYdVEoRhif00iQIaVWUJIc0DkuaBf1FfYR9Hfh5gP4yiwL8EmhRpUdKqCrMgj3wv8mFL6uZSj4lLLjYX5ib9VeBnIU4uGlJAI80XJxj3bGEvvrkQV-YCftFtpBf5TS2VfBGhatWYz1TMRx5efDP4usAYwF7KB4mI-k-5uHXRiebq2z9b6Pl-usL_DAAA__89W_64">