* gnat.dg/opt19.adb: New test.

From-SVN: r179047

gcc/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2011-09-21  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat.dg/opt19.adb: New test.
+
 2011-09-21  Terry Guo  <terry.guo@arm.com>
 
 	* gcc.target/arm/neon-thumb2-move.c: Skip the warning message

gcc/testsuite/gnat.dg/opt19.adb

@@ -0,0 +1,27 @@
+-- { dg-do compile }
+-- { dg-options "-O" }
+
+procedure Opt19 is
+
+  type Enum is (One, Two);
+
+  type Vector_T is array (Enum) of Integer;
+
+  Zero_Vector : constant Vector_T := (Enum => 0);
+
+  type T is record
+    Vector : Vector_T;
+  end record;
+
+  procedure Nested (Value : in out T; E : Enum; B : out Boolean) is
+    I : Integer renames Value.Vector(E);
+  begin
+    B := I /= 0;
+  end;
+
+  Obj : T := (Vector => Zero_Vector);
+  B : Boolean;
+
+begin
+  Nested (Obj, One, B);
+end;