Open
Description
Reproducer:
https://godbolt.org/z/a4deTqq87
auto p1 = new int[][1]();The original reproducer of this issue is the following:
https://github.com/gcc-mirror/gcc/blob/master/gcc/testsuite/g++.dg/cpp2a/new-array5.C
Diagnostics:
<source>:1:22: error: cannot determine allocated array size from initializer
1 | auto p1 = new int[][1]();
| ^Backtrace:
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ExprConstant.cpp:10430: bool {anonymous}::PointerExprEvaluator::VisitCXXNewExpr(const clang::CXXNewExpr*): Assertion `!AllocType->isArrayType() && "array allocation with non-array new"' 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>:1:25: current parser token ';'
#0 0x0000000003f9bf28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f9bf28)
#1 0x0000000003f99bb4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f99bb4)
#2 0x0000000003ede7e8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000073d5e7442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000073d5e74969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000073d5e7442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000073d5e74287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000073d5e742871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000073d5e7439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007933053 (anonymous namespace)::PointerExprEvaluator::VisitCXXNewExpr(clang::CXXNewExpr const*) ExprConstant.cpp:0:0
#10 0x00000000078e99ac clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*) ExprConstant.cpp:0:0
#11 0x00000000078ea8cb EvaluatePointer(clang::Expr const*, (anonymous namespace)::LValue&, (anonymous namespace)::EvalInfo&, bool) ExprConstant.cpp:0:0
#12 0x00000000078d2b35 Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) ExprConstant.cpp:0:0
#13 0x00000000078f04e6 EvaluateInPlace(clang::APValue&, (anonymous namespace)::EvalInfo&, (anonymous namespace)::LValue const&, clang::Expr const*, bool) ExprConstant.cpp:0:0
#14 0x0000000007933c40 clang::Expr::EvaluateAsInitializer(clang::APValue&, clang::ASTContext const&, clang::VarDecl const*, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7933c40)
#15 0x0000000007750d12 clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7750d12)
#16 0x00000000077510c1 clang::VarDecl::checkForConstantInitialization(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x77510c1)
#17 0x00000000069ee96b clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69ee96b)
#18 0x00000000069f5ae2 clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69f5ae2)
#19 0x000000000666ad3a clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x666ad3a)
#20 0x000000000667a609 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+++0x667a609)
#21 0x00000000066381be clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66381be)
#22 0x0000000006638979 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6638979)
#23 0x000000000664028a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664028a)
#24 0x000000000664122d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x664122d)
#25 0x00000000066416e0 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66416e0)
#26 0x00000000066335c3 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66335c3)
#27 0x00000000049478f8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49478f8)
#28 0x0000000004c3f825 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c3f825)
#29 0x0000000004bbe4ee clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bbe4ee)
#30 0x0000000004d32309 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d32309)
#31 0x0000000000daceaf cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdaceaf)
#32 0x0000000000da307a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#33 0x00000000049aebe9 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
#34 0x0000000003edec84 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3edec84)
#35 0x00000000049af1ff 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
#36 0x0000000004970fcd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4970fcd)
#37 0x000000000497205e 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+++0x497205e)
#38 0x000000000497a345 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x497a345)
#39 0x0000000000da8e18 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda8e18)
#40 0x0000000000c2e464 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc2e464)
#41 0x000073d5e7429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#42 0x000073d5e7429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#43 0x0000000000da2b25 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda2b25)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134