[LLVMbugs] [Bug 10290] New: Crash in LLVM VMCore

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Jul 6 13:05:04 PDT 2011


           Summary: Crash in LLVM VMCore
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rtrieu at google.com
                CC: llvmbugs at cs.uiuc.edu

Testing some template code when LLVM crashed.  Details below.

~/clang/test$ cat logical_constant2.cc 
template<unsigned int Flags> struct ei_are_flags_consistent
  int ret = (Flags&5 && Flags&7);

int main(int argc, char** argv) {
  ei_are_flags_consistent<4> foo;
  return 0;

~/clang/test$ clang logical_constant2.cc 
logical_constant2.cc:3:11: warning: in-class initialization of non-static data
      member accepted as a C++0x extension [-Wc++0x-extensions]
  int ret = (Flags&5 && Flags&7);
logical_constant2.cc:3:22: warning: use of logical && with constant operand;
      switch to bitwise & or remove constant [-Wconstant-logical-operand]
  int ret = (Flags&5 && Flags&7);
                     ^  ~~~~~~~
logical_constant2.cc:7:30: note: in instantiation of template class
      'ei_are_flags_consistent<4>' requested here
  ei_are_flags_consistent<4> foo;
clang-3.0: llvm/lib/VMCore/Instructions.cpp:968: void
llvm::StoreInst::AssertOK(): Assertion `getOperand(0)->getType() ==
cast<PointerType>(getOperand(1)->getType())->getElementType() && "Ptr must be a
pointer to Val type!"' failed.
Stack dump:
0.    Program arguments: llvm/llvm_build/bin/clang-3.0 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
logical_constant2.cc -mrelocation-model static -mdisable-fp-elim -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu x86-64
-momit-leaf-frame-pointer -resource-dir llvm/llvm_build/bin/../lib/clang/3.0
-fdeprecated-macro -ferror-limit 19 -fmessage-length 80 -fcxx-exceptions
-fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/cc-wLc9E0.o
-x c++ logical_constant2.cc 
1.    <eof> parser at end of file
2.    Per-file LLVM IR generation
3.    logical_constant2.cc:1:37: Generating code for declaration
clang-3: error: unable to execute command: Aborted
clang-3: error: clang frontend command failed due to signal 2 (use -v to see

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