[LLVMbugs] [Bug 24031] New: Assertion `E != nullptr && "Expected a valid initializer expression"' failed.

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sat Jul 4 20:04:22 PDT 2015 

https://llvm.org/bugs/show_bug.cgi?id=24031

            Bug ID: 24031
           Summary: Assertion `E != nullptr && "Expected a valid
                    initializer expression"' failed.
           Product: clang
           Version: trunk
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: stone at cs.hmc.edu
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

The simple program 

/////////////////////////
template <typename T>
struct MyClass  {

    MyClass() { outer = new SubClass; };
    ~MyClass() { delete outer; };


    struct SubClass {

            SubClass() : inner{} {};
            ~SubClass() { delete inner; };

            SubClass* inner = nullptr;
        };

    SubClass* outer;
};


int main()
{
    MyClass<int> t;
}
//////////////////

fails to compile:

clang:
/mnt/cs/grader/cs70grad/CSTools/llvm/tools/clang/lib/Sema/SemaExprCXX.cpp:2446:
const clang::CXXNewExpr *(anonymous
namespace)::MismatchingNewDeleteDetector::getNewExprFromInitListOrExpr(const
clang::Expr *): Assertion `E != nullptr && "Expected a valid initializer
expression"' failed.
#0 0x2ab8f4a llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x2ab8f4a)
#1 0x2aba73b (/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x2aba73b)
#2 0x7f7e550685d0 (/lib64/libpthread.so.0+0x105d0)
#3 0x7f7e54075355 gsignal
/var/tmp/portage/portage/sys-libs/glibc-2.20-r2/work/glibc-2.20/signal/../sysdeps/unix/sysv/linux/raise.c:55:0
#4 0x7f7e540767fd abort
/var/tmp/portage/portage/sys-libs/glibc-2.20-r2/work/glibc-2.20/stdlib/abort.c:91:0
#5 0x7f7e5406e302 __assert_fail_base
/var/tmp/portage/portage/sys-libs/glibc-2.20-r2/work/glibc-2.20/assert/assert.c:53:0
#6 0x7f7e5406e3c2 (/lib64/libc.so.6+0x2e3c2)
#7 0xe87ef2 (/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xe87ef2)
#8 0xe483f8 (/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xe483f8)
#9 0xe479b5 clang::Sema::AnalyzeDeleteExprMismatch(clang::CXXDeleteExpr const*)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xe479b5)
#10 0xe486a4 clang::Sema::ActOnCXXDelete(clang::SourceLocation, bool, bool,
clang::Expr*) (/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xe486a4)
#11 0x1031dd7
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x1031dd7)
#12 0x1041520
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x1041520)
#13 0x1031d4c clang::Sema::SubstStmt(clang::Stmt*,
clang::MultiLevelTemplateArgumentList const&)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x1031d4c)
#14 0x1063bfb clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x1063bfb)
#15 0x105e380 clang::Sema::PerformPendingInstantiations(bool)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x105e380)
#16 0x1063732 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x1063732)
#17 0x105e380 clang::Sema::PerformPendingInstantiations(bool)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x105e380)
#18 0xc3396d clang::Sema::ActOnEndOfTranslationUnit()
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xc3396d)
#19 0xb79c29
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xb79c29)
#20 0xb75786 clang::ParseAST(clang::Sema&, bool, bool)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0xb75786)
#21 0x765282 clang::FrontendAction::Execute()
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x765282)
#22 0x7343cc clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x7343cc)
#23 0x716cad clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x716cad)
#24 0x70d79f cc1_main(llvm::ArrayRef<char const*>, char const*, void*)
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x70d79f)
#25 0x71543c main
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x71543c)
#26 0x7f7e54061b75 __libc_start_main
/var/tmp/portage/portage/sys-libs/glibc-2.20-r2/work/glibc-2.20/csu/libc-start.c:323:0
#27 0x70d32d _start
(/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang+0x70d32d)
Stack dump:
0.    Program arguments: /mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/clang
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free
-main-file-name bug.cpp -mrelocation-model static -mthread-model posix
-mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -fuse-init-array -target-cpu x86-64 -target-linker-version 2.24
-dwarf-column-info -coverage-file /cs/grader/cs70grad/CSTools/bug.cpp
-resource-dir
/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/../lib/clang/3.7.0
-internal-isystem /usr/lib64/gcc/x86_64-pc-linux-gnu/4.8.4/include/g++-v4
-internal-isystem
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.8.4/include/g++-v4/x86_64-pc-linux-gnu
-internal-isystem
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.8.4/include/g++-v4/backward
-internal-isystem /usr/local/include -internal-isystem
/mnt/cs/grader/cs70grad/CSTools/llvm-install/bin/../lib/clang/3.7.0/include
-internal-externc-isystem /include -internal-externc-isystem /usr/include
-std=c++11 -fdeprecated-macro -fdebug-compilation-dir
/cs/grader/cs70grad/CSTools -ferror-limit 19 -fmessage-length 209
-mstackrealign -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -fcolor-diagnostics -o bug.o -x c++ bug.cpp 
1.    <eof> parser at end of file
2.    bug.cpp:5:5: instantiating function definition '~MyClass'
3.    bug.cpp:11:13: instantiating function definition '~SubClass'
clang: error: unable to execute command: Aborted
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.7.0 (trunk 241395)
Target: x86_64-unknown-linux-gnu
Thread model: posix

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