[Clang][OpenMP] Assertion `!isNull() && "Cannot retrieve a NULL type pointer"' failed. #69200
Assignees
Labels
clang:frontend
Language frontend issues, e.g. anything involving "Sema"
crash-on-invalid
good first issue
https://github.com/llvm/llvm-project/contribute
openmp
Comments
dtcxzyw
added
openmp
clang:frontend
|
@llvm/issue-subscribers-openmp Author: None (connglli)
Compiler explorer: https://godbolt.org/z/5Wcz3KP8h.
The following program > The % cat small.c
int c[-1];
void foo (){
#pragma omp task depend(inout: c[:])
}
% clang -O0 -fopenmp-simd small.c
<source>:1:7: error: 'c' declared as an array with a negative size
1 | int c[-1];
| ^~
clang: /root/llvm-project/clang/include/clang/AST/Type.h:752: const clang::ExtQualsTypeCommonBase* clang::QualType::getCommonPtr() const: Assertion `!isNull() && "Cannot retrieve a NULL type pointer"' 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 -S --gcc-toolchain=/opt/compiler-explorer/gcc-9.2.0 -fcolor-diagnostics -fno-crash-diagnostics -O0 -fopenmp-simd <source>
1. <source>:4:39: at annotation token
2. <source>:3:12: parsing function body 'foo'
3. <source>:3:12: in compound statement ('{}')
#<!-- -->0 0x000000000372f498 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x372f498)
#<!-- -->1 0x000000000372d15c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x372d15c)
#<!-- -->2 0x0000000003675a78 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#<!-- -->3 0x00007efc03b50420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#<!-- -->4 0x00007efc0361300b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
#<!-- -->5 0x00007efc035f2859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
#<!-- -->6 0x00007efc035f2729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
#<!-- -->7 0x00007efc03603fd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
#<!-- -->8 0x0000000003a5419f clang::QualType::getNonReferenceType() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3a5419f)
#<!-- -->9 0x00000000066bad0d clang::Sema::ActOnOpenMPDependClause(clang::OMPDependClause::DependDataTy const&, clang::Expr*, llvm::ArrayRef<clang::Expr*>, clang::SourceLocation, clang::SourceLocation, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66bad0d)
#<!-- -->10 0x00000000067080f0 clang::Sema::ActOnOpenMPVarListClause(llvm::omp::Clause, llvm::ArrayRef<clang::Expr*>, clang::OMPVarListLocTy const&, clang::Sema::OpenMPVarListDataTy&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67080f0)
#<!-- -->11 0x0000000005f5620f clang::Parser::ParseOpenMPVarListClause(llvm::omp::Directive, llvm::omp::Clause, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f5620f)
#<!-- -->12 0x0000000005f564a8 clang::Parser::ParseOpenMPClause(llvm::omp::Directive, llvm::omp::Clause, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f564a8)
#<!-- -->13 0x0000000005f625b8 clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f625b8)
#<!-- -->14 0x0000000005f7f0e4 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+0x5f7f0e4)
#<!-- -->15 0x0000000005f80f88 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f80f88)
#<!-- -->16 0x0000000005f81ec9 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f81ec9)
#<!-- -->17 0x0000000005f837ea clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f837ea)
#<!-- -->18 0x0000000005eb1501 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eb1501)
#<!-- -->19 0x0000000005ed8a18 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ed8a18)
#<!-- -->20 0x0000000005ea596b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ea596b)
#<!-- -->21 0x0000000005ea609f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#<!-- -->22 0x0000000005eada44 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eada44)
#<!-- -->23 0x0000000005eae26d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eae26d)
#<!-- -->24 0x0000000005ea131a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ea131a)
#<!-- -->25 0x000000000499b538 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x499b538)
#<!-- -->26 0x00000000041fefa9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x41fefa9)
#<!-- -->27 0x000000000418044e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x418044e)
#<!-- -->28 0x00000000042de12e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x42de12e)
#<!-- -->29 0x0000000000befa56 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbefa56)
#<!-- -->30 0x0000000000be731a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#<!-- -->31 0x0000000003fdc649 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
#<!-- -->32 0x0000000003675f24 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3675f24)
#<!-- -->33 0x0000000003fdcc3f 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
#<!-- -->34 0x0000000003fa4e05 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fa4e05)
#<!-- -->35 0x0000000003fa586d 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+0x3fa586d)
#<!-- -->36 0x0000000003fad795 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fad795)
#<!-- -->37 0x0000000000becefc clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbecefc)
#<!-- -->38 0x0000000000ae7091 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xae7091)
#<!-- -->39 0x00007efc035f4083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#<!-- -->40 0x0000000000be6dfe _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbe6dfe)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)Clang version: |
|
@llvm/issue-subscribers-clang-frontend Author: None (connglli)
Compiler explorer: https://godbolt.org/z/5Wcz3KP8h.
The following program > The % cat small.c
int c[-1];
void foo (){
#pragma omp task depend(inout: c[:])
}
% clang -O0 -fopenmp-simd small.c
<source>:1:7: error: 'c' declared as an array with a negative size
1 | int c[-1];
| ^~
clang: /root/llvm-project/clang/include/clang/AST/Type.h:752: const clang::ExtQualsTypeCommonBase* clang::QualType::getCommonPtr() const: Assertion `!isNull() && "Cannot retrieve a NULL type pointer"' 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 -S --gcc-toolchain=/opt/compiler-explorer/gcc-9.2.0 -fcolor-diagnostics -fno-crash-diagnostics -O0 -fopenmp-simd <source>
1. <source>:4:39: at annotation token
2. <source>:3:12: parsing function body 'foo'
3. <source>:3:12: in compound statement ('{}')
#<!-- -->0 0x000000000372f498 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x372f498)
#<!-- -->1 0x000000000372d15c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x372d15c)
#<!-- -->2 0x0000000003675a78 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#<!-- -->3 0x00007efc03b50420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#<!-- -->4 0x00007efc0361300b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
#<!-- -->5 0x00007efc035f2859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
#<!-- -->6 0x00007efc035f2729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
#<!-- -->7 0x00007efc03603fd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
#<!-- -->8 0x0000000003a5419f clang::QualType::getNonReferenceType() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3a5419f)
#<!-- -->9 0x00000000066bad0d clang::Sema::ActOnOpenMPDependClause(clang::OMPDependClause::DependDataTy const&, clang::Expr*, llvm::ArrayRef<clang::Expr*>, clang::SourceLocation, clang::SourceLocation, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66bad0d)
#<!-- -->10 0x00000000067080f0 clang::Sema::ActOnOpenMPVarListClause(llvm::omp::Clause, llvm::ArrayRef<clang::Expr*>, clang::OMPVarListLocTy const&, clang::Sema::OpenMPVarListDataTy&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67080f0)
#<!-- -->11 0x0000000005f5620f clang::Parser::ParseOpenMPVarListClause(llvm::omp::Directive, llvm::omp::Clause, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f5620f)
#<!-- -->12 0x0000000005f564a8 clang::Parser::ParseOpenMPClause(llvm::omp::Directive, llvm::omp::Clause, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f564a8)
#<!-- -->13 0x0000000005f625b8 clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f625b8)
#<!-- -->14 0x0000000005f7f0e4 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+0x5f7f0e4)
#<!-- -->15 0x0000000005f80f88 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f80f88)
#<!-- -->16 0x0000000005f81ec9 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f81ec9)
#<!-- -->17 0x0000000005f837ea clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f837ea)
#<!-- -->18 0x0000000005eb1501 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eb1501)
#<!-- -->19 0x0000000005ed8a18 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ed8a18)
#<!-- -->20 0x0000000005ea596b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ea596b)
#<!-- -->21 0x0000000005ea609f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#<!-- -->22 0x0000000005eada44 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eada44)
#<!-- -->23 0x0000000005eae26d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eae26d)
#<!-- -->24 0x0000000005ea131a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ea131a)
#<!-- -->25 0x000000000499b538 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x499b538)
#<!-- -->26 0x00000000041fefa9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x41fefa9)
#<!-- -->27 0x000000000418044e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x418044e)
#<!-- -->28 0x00000000042de12e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x42de12e)
#<!-- -->29 0x0000000000befa56 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbefa56)
#<!-- -->30 0x0000000000be731a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#<!-- -->31 0x0000000003fdc649 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
#<!-- -->32 0x0000000003675f24 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3675f24)
#<!-- -->33 0x0000000003fdcc3f 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
#<!-- -->34 0x0000000003fa4e05 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fa4e05)
#<!-- -->35 0x0000000003fa586d 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+0x3fa586d)
#<!-- -->36 0x0000000003fad795 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fad795)
#<!-- -->37 0x0000000000becefc clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbecefc)
#<!-- -->38 0x0000000000ae7091 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xae7091)
#<!-- -->39 0x00007efc035f4083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#<!-- -->40 0x0000000000be6dfe _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbe6dfe)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)Clang version: |
shiltian
changed the title
shiltian
added
the
good first issue
|
@llvm/issue-subscribers-good-first-issue Author: None (connglli)
Compiler explorer: https://godbolt.org/z/5Wcz3KP8h.
The following program > The % cat small.c
int c[-1];
void foo (){
#pragma omp task depend(inout: c[:])
}
% clang -O0 -fopenmp-simd small.c
<source>:1:7: error: 'c' declared as an array with a negative size
1 | int c[-1];
| ^~
clang: /root/llvm-project/clang/include/clang/AST/Type.h:752: const clang::ExtQualsTypeCommonBase* clang::QualType::getCommonPtr() const: Assertion `!isNull() && "Cannot retrieve a NULL type pointer"' 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 -S --gcc-toolchain=/opt/compiler-explorer/gcc-9.2.0 -fcolor-diagnostics -fno-crash-diagnostics -O0 -fopenmp-simd <source>
1. <source>:4:39: at annotation token
2. <source>:3:12: parsing function body 'foo'
3. <source>:3:12: in compound statement ('{}')
#<!-- -->0 0x000000000372f498 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x372f498)
#<!-- -->1 0x000000000372d15c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x372d15c)
#<!-- -->2 0x0000000003675a78 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#<!-- -->3 0x00007efc03b50420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#<!-- -->4 0x00007efc0361300b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
#<!-- -->5 0x00007efc035f2859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
#<!-- -->6 0x00007efc035f2729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
#<!-- -->7 0x00007efc03603fd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
#<!-- -->8 0x0000000003a5419f clang::QualType::getNonReferenceType() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3a5419f)
#<!-- -->9 0x00000000066bad0d clang::Sema::ActOnOpenMPDependClause(clang::OMPDependClause::DependDataTy const&, clang::Expr*, llvm::ArrayRef<clang::Expr*>, clang::SourceLocation, clang::SourceLocation, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x66bad0d)
#<!-- -->10 0x00000000067080f0 clang::Sema::ActOnOpenMPVarListClause(llvm::omp::Clause, llvm::ArrayRef<clang::Expr*>, clang::OMPVarListLocTy const&, clang::Sema::OpenMPVarListDataTy&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x67080f0)
#<!-- -->11 0x0000000005f5620f clang::Parser::ParseOpenMPVarListClause(llvm::omp::Directive, llvm::omp::Clause, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f5620f)
#<!-- -->12 0x0000000005f564a8 clang::Parser::ParseOpenMPClause(llvm::omp::Directive, llvm::omp::Clause, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f564a8)
#<!-- -->13 0x0000000005f625b8 clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f625b8)
#<!-- -->14 0x0000000005f7f0e4 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+0x5f7f0e4)
#<!-- -->15 0x0000000005f80f88 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f80f88)
#<!-- -->16 0x0000000005f81ec9 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f81ec9)
#<!-- -->17 0x0000000005f837ea clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5f837ea)
#<!-- -->18 0x0000000005eb1501 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eb1501)
#<!-- -->19 0x0000000005ed8a18 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ed8a18)
#<!-- -->20 0x0000000005ea596b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ea596b)
#<!-- -->21 0x0000000005ea609f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#<!-- -->22 0x0000000005eada44 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eada44)
#<!-- -->23 0x0000000005eae26d clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5eae26d)
#<!-- -->24 0x0000000005ea131a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x5ea131a)
#<!-- -->25 0x000000000499b538 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x499b538)
#<!-- -->26 0x00000000041fefa9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x41fefa9)
#<!-- -->27 0x000000000418044e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x418044e)
#<!-- -->28 0x00000000042de12e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x42de12e)
#<!-- -->29 0x0000000000befa56 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbefa56)
#<!-- -->30 0x0000000000be731a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#<!-- -->31 0x0000000003fdc649 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
#<!-- -->32 0x0000000003675f24 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3675f24)
#<!-- -->33 0x0000000003fdcc3f 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
#<!-- -->34 0x0000000003fa4e05 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fa4e05)
#<!-- -->35 0x0000000003fa586d 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+0x3fa586d)
#<!-- -->36 0x0000000003fad795 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fad795)
#<!-- -->37 0x0000000000becefc clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbecefc)
#<!-- -->38 0x0000000000ae7091 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xae7091)
#<!-- -->39 0x00007efc035f4083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#<!-- -->40 0x0000000000be6dfe _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xbe6dfe)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)Clang version: |
|
@connglli This sounds to be a good first issue. I would like to be assigned to this issue. Could you assign me please? Could I get the full |
|
Thanks for working on that. I think the code shown here and https://godbolt.org/z/5Wcz3KP8h is sufficient for the reproducer. |
|
Should I only fix the crash and let the error on -1 or should I also allow the -1? |
|
The error on -1 has already been caught. The crash is the issue here. By no means a compiler can crash upon a code error. |
|
Hi @shiltian , I'd like to work on this. |
|
I followed the crash dump and noticed that the call reaches to this line: llvm-project/clang/lib/Sema/SemaOpenMP.cpp Lines 21069 to 21070 in 59567e7 The crash happens on the second line above. As a test, I overwrote the Can someone please give me some pointers on how to progress on this? As I understand, we need to do a -ve size check similar to this check and eventually hit a |
Most likely we just need to be more explicit with the special case this creates. It seems this is already handled as an error by some other semantic analysis, so the OpenMP checks just need to stop crashing. I would suggest using |
InfiniteVerma
added a commit
to InfiniteVerma/llvm-project
that referenced
this issue
Jan 5, 2024
|
Ping |
|
I think we can close this issue also now. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Compiler explorer: https://godbolt.org/z/5Wcz3KP8h.
The following program
small.ctriggers a crash in clang-18:Clang version:
The text was updated successfully, but these errors were encountered: