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Check for division by zero when performing modulus 

operations.

<rdar://problem/14656908>

llvm-svn: 187996
This commit is contained in:
Sean Callanan 2013-08-08 17:57:00 +00:00
parent 9c2f9cdec0
commit 9ba6eaec57
1 changed files with 8 additions and 14 deletions
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24
lldb/source/Core/Scalar.cpp
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@ -1690,22 +1690,16 @@ lldb_private::operator% (const Scalar& lhs, const Scalar& rhs)
{
switch (result.m_type)
{
case Scalar::e_sint: result.m_data.sint = a->m_data.sint % b->m_data.sint; break;
case Scalar::e_uint: result.m_data.uint = a->m_data.uint % b->m_data.uint; break;
case Scalar::e_slong: result.m_data.slong = a->m_data.slong % b->m_data.slong; break;
case Scalar::e_ulong: result.m_data.ulong = a->m_data.ulong % b->m_data.ulong; break;
case Scalar::e_slonglong: result.m_data.slonglong = a->m_data.slonglong % b->m_data.slonglong; break;
case Scalar::e_ulonglong: result.m_data.ulonglong = a->m_data.ulonglong % b->m_data.ulonglong; break;
case Scalar::e_void:
case Scalar::e_float:
case Scalar::e_double:
case Scalar::e_long_double:
// No bitwise AND on floats, doubles of long doubles
default: break;
case Scalar::e_sint: if (b->m_data.sint != 0) { result.m_data.sint = a->m_data.sint % b->m_data.sint; return result; } break;
case Scalar::e_uint: if (b->m_data.uint != 0) { result.m_data.uint = a->m_data.uint % b->m_data.uint; return result; } break;
case Scalar::e_slong: if (b->m_data.slong != 0) { result.m_data.slong = a->m_data.slong % b->m_data.slong; return result; } break;
case Scalar::e_ulong: if (b->m_data.ulong != 0) { result.m_data.ulong = a->m_data.ulong % b->m_data.ulong; return result; } break;
case Scalar::e_slonglong: if (b->m_data.slonglong != 0) { result.m_data.slonglong = a->m_data.slonglong % b->m_data.slonglong; return result; } break;
case Scalar::e_ulonglong: if (b->m_data.ulonglong != 0) { result.m_data.ulonglong = a->m_data.ulonglong % b->m_data.ulonglong; return result; } break;
}
}
result.m_type = Scalar::e_void;
break;
}
}
return result;
}