https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89850
Bug ID: 89850
Summary: long compile times with -fsanitize=undefined and
-Wduplicated-branches
Product: gcc
Version: 8.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: joerg.rich...@pdv-fs.de
Target Milestone: ---
cat > t.cc <<EOF
class FooBar
{
private:
long long value_;
public:
FooBar() : value_( 0 ) {}
bool isUnused() const
{ return value_ == 0; }
};
struct Stream
{
template<class T>
Stream& operator<<( T const& t )
{
return *this;
}
};
void xxx( Stream& os )
{
FooBar bar;
long long foo = 0;
if( !bar.isUnused() )
{
os << foo << foo << foo << foo << foo << foo << foo
<< foo << foo << foo << foo << foo << foo << foo
<< foo << foo << foo << foo << foo << foo << foo
<< foo << foo << foo << foo << foo << foo << foo;
}
}
EOF
g++ -fsanitize=undefined -Wduplicated-branches -c -o t.o t.cc
