[llvm-bugs] [Bug 45706] New: Target offload mapping: test_target_enter_exit_data_classes.cpp compilation segfaults.

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Apr 27 17:08:20 PDT 2020 

https://bugs.llvm.org/show_bug.cgi?id=45706

            Bug ID: 45706
           Summary: Target offload mapping:
                    test_target_enter_exit_data_classes.cpp compilation
                    segfaults.
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Clang Compiler Support
          Assignee: unassignedclangbugs at nondot.org
          Reporter: llvm at meinersbur.de
                CC: llvm-bugs at lists.llvm.org

Created attachment 23411
  --> https://bugs.llvm.org/attachment.cgi?id=23411&action=edit
crash.zip

Clang crashes with the attached file.

Using f30416fdde922eaa655934e050026930fefbd260 (current master). The source
file is based on:
https://github.com/SOLLVE/sollve_vv/blob/master/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp

Why doesn't the clang driver generate a reproducer itself?

$ /tmp/persistent/llvm-install/bin/clang++ -O3 -DNDEBUG  
-fopenmp-targets=nvptx64-nvida-cuda -Xopenmp-target -march=sm_70
--cuda-path=/soft/compilers/cuda/cuda-10.2.89 -fopenmp=libomp -c prep.cpp
clang-11: warning: Unknown CUDA version 10.2. Assuming the latest supported
version 10.1 [-Wunknown-cuda-version]
clang-11: warning: No library 'libomptarget-nvptx-sm_70.bc' found in the
default clang lib directory or in LIBRARY_PATH. Expect degraded performance due
to no inlining of runtime functions on target devices. [-Wopenmp-target]
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:18:38:
warning: Type 'B' is not trivially copyable and not guaranteed to be mapped
correctly [-Wopenmp-mapping]
#pragma omp target enter data map(to:ptr[0:1]) if(not_mapped)
                                     ^~~~~~~~
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:33:14:
note: in instantiation of member function 'Mapper<B>::Mapper' requested here
  B(int n) : Mapper<B>(this), n(n) {
             ^
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:22:42:
warning: Type 'B' is not trivially copyable and not guaranteed to be mapped
correctly [-Wopenmp-mapping]
#pragma omp target exit data map(delete: ptr[0:1]) if(not_mapped)
                                         ^~~~~~~~
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:33:3:
note: in instantiation of member function 'Mapper<B>::~Mapper' requested here
  B(int n) : Mapper<B>(this), n(n) {
  ^
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:18:38:
warning: Type 'A' is not trivially copyable and not guaranteed to be mapped
correctly [-Wopenmp-mapping]
#pragma omp target enter data map(to:ptr[0:1]) if(not_mapped)
                                     ^~~~~~~~
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:62:14:
note: in instantiation of member function 'Mapper<A>::Mapper' requested here
  A(int s) : Mapper<A>(this), B(s), n(s) {
             ^
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:22:42:
warning: Type 'A' is not trivially copyable and not guaranteed to be mapped
correctly [-Wopenmp-mapping]
#pragma omp target exit data map(delete: ptr[0:1]) if(not_mapped)
                                         ^~~~~~~~
/tmp/persistent/sollve_vv-src/tests/4.5/target_enter_exit_data/test_target_enter_exit_data_classes.cpp:62:3:
note: in instantiation of member function 'Mapper<A>::~Mapper' requested here
  A(int s) : Mapper<A>(this), B(s), n(s) {
  ^
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments: /tmp/persistent/llvm-install/bin/clang-11 -cc1
-triple x86_64-unknown-linux-gnu -emit-llvm-bc -emit-llvm-uselists
-disable-free -main-file-name prep.cpp -mrelocation-model static -mthread-model
posix -mframe-pointer=none -fmath-errno -fno-rounding-math
-mconstructor-aliases -munwind-tables -target-cpu x86-64 -dwarf-column-info
-fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir
/tmp/persistent/llvm-install/lib/clang/11.0.0 -D NDEBUG -internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/x86_64-redhat-linux
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/backward
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/x86_64-redhat-linux
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/backward
-internal-isystem /usr/local/include -internal-isystem
/tmp/persistent/llvm-install/lib/clang/11.0.0/include -internal-externc-isystem
/include -internal-externc-isystem /usr/include -internal-isystem
/usr/local/include -internal-isystem
/tmp/persistent/llvm-install/lib/clang/11.0.0/include -internal-externc-isystem
/include -internal-externc-isystem /usr/include -O3 -fdeprecated-macro
-fdebug-compilation-dir /tmp/runci_temp-ybqbsiz8 -ferror-limit 19 -fopenmp
-fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -fcolor-diagnostics
-vectorize-loops -vectorize-slp -disable-llvm-passes
-fopenmp-targets=nvptx64-nvida-cuda -faddrsig -o /tmp/prep-ab4cc3.bc -x c++
prep.cpp
1.      <eof> parser at end of file
 #0 0x00000000026a89e4 PrintStackTraceSignalHandler(void*)
(/tmp/persistent/llvm-install/bin/clang-11+0x26a89e4)
 #1 0x00000000026a662e llvm::sys::RunSignalHandlers()
(/tmp/persistent/llvm-install/bin/clang-11+0x26a662e)
 #2 0x00000000026a8cf5 SignalHandler(int)
(/tmp/persistent/llvm-install/bin/clang-11+0x26a8cf5)
 #3 0x00007f33d78e7630 __restore_rt (/lib64/libpthread.so.0+0xf630)
 #4 0x000000000408520e llvm::SmallSet<clang::CanonicalDeclPtr<clang::Decl>, 4u,
std::__1::less<clang::CanonicalDeclPtr<clang::Decl> >
>::insert(clang::CanonicalDeclPtr<clang::Decl> const&)
(/tmp/persistent/llvm-install/bin/clang-11+0x408520e)
 #5 0x0000000004084fce (anonymous
namespace)::DeferredDiagnosticsEmitter::checkFunc(clang::SourceLocation,
clang::FunctionDecl*) (/tmp/persistent/llvm-install/bin/clang-11+0x4084fce)
 #6 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
 #7 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
 #8 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
 #9 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#10 0x0000000004085a44 clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4085a44)
#11 0x0000000004085a44 clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4085a44)
#12 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#13 0x0000000004085756 clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4085756)
#14 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#15 0x0000000004085057 (anonymous
namespace)::DeferredDiagnosticsEmitter::checkFunc(clang::SourceLocation,
clang::FunctionDecl*) (/tmp/persistent/llvm-install/bin/clang-11+0x4085057)
#16 0x000000000408593f clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x408593f)
#17 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#18 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#19 0x0000000004085a44 clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4085a44)
#20 0x0000000004085a44 clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4085a44)
#21 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#22 0x0000000004085756 clang::StmtVisitorBase<std::__1::add_pointer, (anonymous
namespace)::DeferredDiagnosticsEmitter, void>::Visit(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4085756)
#23 0x0000000004086365 clang::EvaluatedExprVisitorBase<std::__1::add_pointer,
(anonymous namespace)::DeferredDiagnosticsEmitter>::VisitStmt(clang::Stmt*)
(/tmp/persistent/llvm-install/bin/clang-11+0x4086365)
#24 0x0000000004085057 (anonymous
namespace)::DeferredDiagnosticsEmitter::checkFunc(clang::SourceLocation,
clang::FunctionDecl*) (/tmp/persistent/llvm-install/bin/clang-11+0x4085057)
#25 0x000000000407a269 clang::Sema::emitDeferredDiags()
(/tmp/persistent/llvm-install/bin/clang-11+0x407a269)
#26 0x000000000407950c
clang::Sema::ActOnEndOfTranslationUnitFragment(clang::Sema::TUFragmentKind)
(/tmp/persistent/llvm-install/bin/clang-11+0x407950c)
#27 0x000000000407a584 clang::Sema::ActOnEndOfTranslationUnit()
(/tmp/persistent/llvm-install/bin/clang-11+0x407a584)
#28 0x0000000003f7b1ae
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/tmp/persistent/llvm-install/bin/clang-11+0x3f7b1ae)
#29 0x0000000003f75edd clang::ParseAST(clang::Sema&, bool, bool)
(/tmp/persistent/llvm-install/bin/clang-11+0x3f75edd)
#30 0x0000000002e3f980 clang::FrontendAction::Execute()
(/tmp/persistent/llvm-install/bin/clang-11+0x2e3f980)
#31 0x0000000002ddc402
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/tmp/persistent/llvm-install/bin/clang-11+0x2ddc402)
#32 0x0000000002ee6c52
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/tmp/persistent/llvm-install/bin/clang-11+0x2ee6c52)
#33 0x00000000009b1544 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/tmp/persistent/llvm-install/bin/clang-11+0x9b1544)
#34 0x00000000009af3ec ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/tmp/persistent/llvm-install/bin/clang-11+0x9af3ec)
#35 0x00000000009af067 main
(/tmp/persistent/llvm-install/bin/clang-11+0x9af067)
#36 0x00007f33d62c3545 __libc_start_main (/lib64/libc.so.6+0x22545)
#37 0x00000000009ac15d _start
(/tmp/persistent/llvm-install/bin/clang-11+0x9ac15d)
clang-11: error: unable to execute command: Segmentation fault
clang-11: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 11.0.0 (/tmp/persistent/llvm-src/clang
a875447ad2023d9d0cb2c78cccb32196a8557f97)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /tmp/persistent/llvm-install/bin
clang-11: warning: No library 'libomptarget-nvptx-sm_70.bc' found in the
default clang lib directory or in LIBRARY_PATH. Expect degraded performance due
to no inlining of runtime functions on target devices. [-Wopenmp-target]
clang-11: note: diagnostic msg: Error generating preprocessed source(s).

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