https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83468
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|-Wuninitialized warning not |-Wuninitialized false
|emitted when it should |negative (reference, VOPs
| |at O0, Wsystem-headers)
--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
It should warn at -O0 for passing q to test2, specially because there is no
inlining. Simpler testcase:
class klass
{
public: void test2(double k);
public: void test3(double& k);
};
int main(int argc, const char** argv)
{
double q;
klass* ptr;
ptr = new klass();
ptr->test2(q);
ptr->test3(q);
ptr->test2(q);
}
It warns if one removes the call to test3. This is because we don't handle VOPs
in they early pass and the call to test3 converts q to one.
There's also the other issue with inlining code from Wsystem-headers.
