https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98101
scott snyder <s...@li-snyder.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |s...@li-snyder.org
--- Comment #3 from scott snyder <s...@li-snyder.org> ---
Here's another example that crashes in the same place, but which doesn't use
-fvtable-verify. This example does use vectorization, and the ICE occurs only
with -O3. Seen with gcc 11.0.0 20201128.
-- x.cc ------------------------------------------------------------------
typedef double Packet2d __attribute__ ((__vector_size__ (16)));
Packet2d psub();
struct Translation
{
double m_coeffs[2];
Translation(double sx, double sy )
{
m_coeffs[0] = sx;
m_coeffs[1] = sy;
}
};
struct GeoTransform
{
GeoTransform(const Translation& transform);
};
struct GeoIdentifierTag
{
GeoIdentifierTag();
};
struct CryostatConstructionTBEC
{
virtual ~CryostatConstructionTBEC();
};
GeoTransform* createEnvelope()
{
CryostatConstructionTBEC cryoConstruction;
double pos[2];
*(Packet2d*)pos = psub();
new GeoIdentifierTag;
return new GeoTransform( Translation(pos[0], pos[1]) );
}
---------------------------------------------------------------------------
$ g++ -c -O3 x.cc
during GIMPLE pass: ehcleanup
x.cc: In function ‘GeoTransform* createEnvelope()’:
x.cc:30:15: internal compiler error: in mark_reachable_handlers, at
tree-eh.c:4033
30 | GeoTransform* createEnvelope()
| ^~~~~~~~~~~~~~
0x633a75 mark_reachable_handlers
/home/sss/gcc/gcc/gcc/tree-eh.c:4033
0xcda146 remove_unreachable_handlers
/home/sss/gcc/gcc/gcc/tree-eh.c:4080
0xcddfd1 execute_cleanup_eh_1
/home/sss/gcc/gcc/gcc/tree-eh.c:4783
0xcddfd1 execute
/home/sss/gcc/gcc/gcc/tree-eh.c:4850
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