re PR ipa/62015 (ipa-cp-clone uses a clone that is too specialized for the call context)

2014-09-03  Martin Jambor  <mjambor@suse.cz>

	PR ipa/62015
	* ipa-cp.c (intersect_aggregates_with_edge): Handle impermissible
	pass-trough jump functions correctly.

testsuite/
	* g++.dg/ipa/pr62015.C: New test.

From-SVN: r214878

gcc/ChangeLog

 2014-09-03  Martin Jambor  <mjambor@suse.cz>
 
+	PR ipa/62015
+	* ipa-cp.c (intersect_aggregates_with_edge): Handle impermissible
+	pass-trough jump functions correctly.
+
+2014-09-03  Martin Jambor  <mjambor@suse.cz>
+
 	PR ipa/61986
 	* ipa-cp.c (find_aggregate_values_for_callers_subset): Chain
 	created replacements in ascending order of offsets.

gcc/ipa-cp.c

@@ -3048,6 +3048,11 @@ intersect_aggregates_with_edge (struct cgraph_edge *cs, int index,
 		intersect_with_agg_replacements (cs->caller, src_idx,
 						 &inter, 0);
 	    }
+	  else
+	    {
+	      inter.release ();
+	      return vNULL;
+	    }
 	}
       else
 	{
@@ -3063,6 +3068,11 @@ intersect_aggregates_with_edge (struct cgraph_edge *cs, int index,
 	      else
 		intersect_with_plats (src_plats, &inter, 0);
 	    }
+	  else
+	    {
+	      inter.release ();
+	      return vNULL;
+	    }
 	}
     }
   else if (jfunc->type == IPA_JF_ANCESTOR

gcc/testsuite/ChangeLog

 2014-09-03  Martin Jambor  <mjambor@suse.cz>
 
+	PR ipa/62015
+	* g++.dg/ipa/pr62015.C: New test.
+
+2014-09-03  Martin Jambor  <mjambor@suse.cz>
+
 	PR ipa/61986
 	* gcc.dg/ipa/pr61986.c: New test.
 

gcc/testsuite/g++.dg/ipa/pr62015.C

+/* { dg-do run } */
+/* { dg-options "-O3 -std=c++11"  } */
+
+
+extern "C" int printf(const char *fmt, ...);
+extern "C" void abort(void);
+
+struct Side {
+    enum _Value { Left, Right, Invalid };
+
+    constexpr Side() : _value(Invalid) {}
+    constexpr Side(_Value value) : _value(value) {}
+    operator _Value() const { return (_Value)_value; }
+
+  private:
+    char _value;
+};
+
+struct A {
+    void init();
+    void adjust(Side side, bool final);
+    void move(Side side);
+};
+
+void A::init()
+{
+    adjust(Side::Invalid, false);
+}
+
+static void __attribute__((noinline))
+check (int v, int final)
+{
+    if (v != 0)
+      abort();
+}
+
+
+__attribute__((noinline))
+void A::adjust(Side side, bool final)
+{
+  check ((int)side, final);
+}
+
+void A::move(Side side)
+{
+    adjust(side, false);
+    adjust(side, true);
+}
+
+int main()
+{
+    A t;
+    t.move(Side::Left);
+    return 0;
+}