commit three of testcases which I forgot to commit.

From-SVN: r102411

gcc/testsuite/g++.dg/opt/loop2.C

+// PR middle-end/22484
+// { dg-do compile }
+// { dg-options "-O3" }
+
+struct A { ~A(); };
+typedef bool B;
+
+bool foo();
+
+bool bar(A&)
+{
+  B b = true;
+
+  for (int i = 0; i < 2 && b; ++i)
+    b = foo();
+
+  return b;
+}
+
+void baz()
+{
+  A a;
+  if (bar(a)) foo();
+}

gcc/testsuite/gcc.dg/tree-ssa/pr19055-2.c

+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-gimple" } */
+int f1(int a,int b,int c,int d)
+{
+  return ((a&d)|(b&c)) ^ (b&c);
+}
+
+int f2(int a,int b,int c,int d)
+{
+  return (b&c) ^ ((a&d)|(b&c));
+}
+
+int f3(int a,int b,int c,int d)
+{
+  return ((b&c)|(a&d)) ^ (b&c);
+}
+
+int f4(int a,int b,int c,int d)
+{
+  return (b&c) ^ ((b&c)|(a&d));
+}
+
+/* There should be no ^, 4 ~ and 12 &. */
+/* { dg-final { scan-tree-dump-times "\\^" 0 "gimple"} } */
+/* { dg-final { scan-tree-dump-times "~" 4 "gimple"} } */
+/* { dg-final { scan-tree-dump-times "&" 12 "gimple"} } */

gcc/testsuite/gcc.dg/tree-ssa/pr19055.c

+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-gimple" } */
+int f1(int a,int b)
+{
+  return (a|b) ^ b;
+}
+int f2(int a,int b)
+{
+  return (b|a) ^ b;
+}
+int f3(int a,int b)
+{
+  return b^(a|b);
+}
+int f4(int a,int b)
+{
+  return b^(b|a);
+}
+/* There should be no ^, 4 ~ and 4 &. */
+/* { dg-final { scan-tree-dump-times "\\^" 0 "gimple"} } */
+/* { dg-final { scan-tree-dump-times "~" 4 "gimple"} } */
+/* { dg-final { scan-tree-dump-times "&" 4 "gimple"} } */