https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94652
Bug ID: 94652 Summary: gdc.dg/ubsan/pr88957.d: valgrind error Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: d Assignee: ibuclaw at gdcproject dot org Reporter: dcb314 at hotmail dot com Target Milestone: --- For D testsuite file ./gdc.dg/ubsan/pr88957.d with a valgrind version of recent trunk D compiler, does this: ==162456== Invalid read of size 8 ==162456== at 0x6C38E9: Expression::copy() (expression.c:2046) ==162456== by 0x664547: visit (dcast.c:68) ==162456== by 0x664547: implicitCastTo(Expression*, Scope*, Type*)::ImplicitC astTo::visit(Expression*) (dcast.c:54) ==162456== by 0x66BE8A: implicitCastTo(Expression*, Scope*, Type*) (dcast.c:1 60)