[LLVMbugs] [Bug 16596] New: Compilation crash with assertion "RTTI info cannot have top-level qualifiers"

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Jul 11 05:56:28 PDT 2013


            Bug ID: 16596
           Summary: Compilation crash with assertion "RTTI info cannot
                    have top-level qualifiers"
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: devlists at shadowlab.org
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 10868
  --> http://llvm.org/bugs/attachment.cgi?id=10868&action=edit
Test case and invocation.

Here is the stack trace:

Assertion failed: (!Ty.hasQualifiers() && "RTTI info cannot have top-level
qualifiers"), function mangleCXXRTTI, file
/Users/jddupas/Projects/llvm/llvm/tools/clang/lib/AST/ItaniumMangle.cpp, line
5  clang-3.4         0x000000010cad7681 __assert_rtn + 81
6  clang-3.4         0x000000010cc187d9 (anonymous
llvm::raw_ostream&) + 265
7  clang-3.4         0x000000010cde5916 (anonymous
namespace)::RTTIBuilder::BuildTypeInfo(clang::QualType, bool) + 166
8  clang-3.4         0x000000010cde68f6 (anonymous
namespace)::RTTIBuilder::BuildTypeInfo(clang::QualType, bool) + 4230
9  clang-3.4         0x000000010cde57d1
clang::CodeGen::CodeGenModule::GetAddrOfRTTIDescriptor(clang::QualType, bool) +
10 clang-3.4         0x000000010cd8e4ff
clang::CodeGen::CodeGenFunction::EmitCXXTypeidExpr(clang::CXXTypeidExpr const*)
+ 79

The attachment contains 3 files:
cv.cpp: a reduced test case that depends on libc++ <functional>
cv.ii: a preprocessed version of the test case (produced by the clang crash
cv.sh: the compilation script (produced by the clang crash handler).

Trying to compile cv.cpp using the following command line makes clang crash:

clang++ -std=c++11 -stdlib=libc++ -c cv.cpp

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