[LLVMbugs] [Bug 12642] New: Crash on codegen, only with C++11

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Apr 24 00:01:01 PDT 2012


             Bug #: 12642
           Summary: Crash on codegen, only with C++11
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++11
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chandlerc at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu,
                    richard-llvm at metafoo.co.uk
    Classification: Unclassified

% cat x.cc
namespace N {
  struct S { };
namespace N {
  S s_arr[] = { };
  S *s_arr_end = s_arr + sizeof 0;

% ./bin/clang++ -O2 -o /dev/null -c x.cc
<no problem>
% ./bin/clang++ -O2 -o /dev/null -c x.cc -std=c++11
clang-3.1: ../lib/Target/TargetData.cpp:81: unsigned int
llvm::StructLayout::getElementContainingOffset(uint64_t) const: Assertion `SI
!= &MemberOffsets[0] && "Offset not in structure type!"' failed.

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