gcc/analyzer/ChangeLog:
PR analyzer/96643
* region-model.cc (region_model::deref_rvalue): Rather than
attempting to handle all svalue kinds in the switch, only cover
the special cases, and move symbolic-region handling to after
the switch, thus implicitly handling the missing case SK_COMPOUND.
gcc/testsuite/ChangeLog:
PR analyzer/96643
* g++.dg/analyzer/pr96643.C: New test.
switch (ptr_sval->get_kind ())
{
default:
- gcc_unreachable ();
+ break;
case SK_REGION:
{
return m_mgr->get_offset_region (parent_region, type, offset);
}
default:
- goto create_symbolic_region;
+ break;
}
}
-
- case SK_CONSTANT:
- case SK_INITIAL:
- case SK_UNARYOP:
- case SK_SUB:
- case SK_WIDENING:
- case SK_CONJURED:
- goto create_symbolic_region;
+ break;
case SK_POISONED:
{
ctxt->warn (new poisoned_value_diagnostic (ptr, pkind));
}
}
- goto create_symbolic_region;
}
-
- case SK_UNKNOWN:
- {
- create_symbolic_region:
- return m_mgr->get_symbolic_region (ptr_sval);
- }
-
- case SK_SETJMP:
- goto create_symbolic_region;
+ break;
}
- gcc_unreachable ();
+ return m_mgr->get_symbolic_region (ptr_sval);
}
/* Set the value of the region given by LHS_REG to the value given
--- /dev/null
+/* { dg-additional-options "-O1" } */
+
+int l0;
+
+class qv {
+public:
+ int operator[] (int b1) const { return k2[b1]; }
+
+private:
+ int *k2;
+};
+
+class g0 {
+ qv nf, v6;
+
+ void
+ iq ();
+};
+
+void
+g0::iq ()
+{
+ for (;;)
+ if (nf[0] == 0)
+ ++l0;
+}