2002-07-11  Jakub Jelinek  <jakub@redhat.com>

	* g++.dg/opt/nrv5.C: New test.

2002-07-05  Jason Merrill  <jason@redhat.com>

	* g++.dg/opt/nrv4.C: New test.

2002-04-09  Jason Merrill  <jason@redhat.com>

	* g++.dg/opt/nrv3.C: New test.

--- gcc/testsuite/g++.dg/opt/nrv3.C.jj	Thu Apr 11 16:25:15 2002
+++ gcc/testsuite/g++.dg/opt/nrv3.C	Tue Apr  9 19:02:43 2002
@@ -0,0 +1,24 @@
+// PR optimization/6189
+// Bug: we forgot about foo's nrv after writing it out.
+// { dg-options -O3 }
+// { dg-do run }
+
+struct A
+{
+  int i;
+};
+
+
+A foo ()
+{
+  A a;
+  a.i = 42;
+  return a;
+}
+
+
+int main()
+{
+  A b = foo();
+  return b.i != 42;
+}
--- gcc/testsuite/g++.dg/opt/nrv4.C.jj	Thu Apr 11 16:25:15 2002
+++ gcc/testsuite/g++.dg/opt/nrv4.C	Fri Jul  5 17:16:56 2002
@@ -0,0 +1,23 @@
+// PR optimization/7145
+// Bug: The NRV optimization caused us to lose the initializer for 'ret'.
+// { dg-options -O }
+// { dg-do run }
+
+struct GdkColor {
+  long  pixel;
+  short red;
+  short green;
+  short blue;
+};
+
+inline GdkColor mkcolor() {
+  GdkColor ret={0,1,2,3};
+  return ret;
+}
+
+int
+main()
+{
+  GdkColor col=mkcolor();
+  return (col.pixel != 0 || col.red != 1 || col.green != 2 || col.blue != 3);
+}
--- gcc/testsuite/g++.dg/opt/nrv5.C.jj	Thu Apr 11 16:25:15 2002
+++ gcc/testsuite/g++.dg/opt/nrv5.C	Thu Jul 11 11:29:33 2002
@@ -0,0 +1,52 @@
+// Test for the named return value optimization with inlining.
+// Contributed by Jakub Jelinek <jakub@redhat.com>.
+// { dg-do run }
+// { dg-options -O2 }
+
+enum E { E0, E1, E2, E3 };
+
+struct S
+{
+  E s0 : 2;
+  bool s1 : 1, s2 : 1, s3 : 1, s4 : 1, s5 : 1, s6 : 1;
+  S () : s1 (true), s2 (false), s0 (E1), s3 (true), s4 (false), s5 (true), s6 (false) {}
+  void foo (E x) { this->s0 = x; }
+};
+
+inline S foo ()
+{
+  S s;
+  s.foo (E0);
+  return s;
+}
+
+inline S bar ()
+{
+  S s;
+  s.foo (E2);
+  return s;
+}
+
+void check (S &s, bool isfoo);
+
+void test (bool isfoo)
+{
+  S a = isfoo ? foo () : bar ();
+  check (a, isfoo);
+}
+
+extern "C" void abort ();
+
+void check (S &s, bool isfoo)
+{
+  if (! s.s1 || s.s2 || ! s.s3 || s.s4 || ! s.s5 || s.s6)
+    abort ();
+  if (s.s0 != (isfoo ? E0 : E2))
+    abort ();
+}
+
+int main ()
+{
+  test (true);
+  test (false);
+}