Missed testcases in earlier commit.

2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 32102
testsuite/
	* gcc.dg/Wstrict-overflow-21.c: New.
	* g++.dg/warn/Wstrict-aliasing-8.C: New.

From-SVN: r131722

gcc/testsuite/g++.dg/warn/Wstrict-aliasing-8.C

+/* { dg-do compile } */
+/* { dg-options "-Wstrict-aliasing=2 -O2 -Wall" } */
+
+int a[2];
+
+double *foo1(void)
+{
+  return (double *)a; /* { dg-warning "strict-aliasing" } */
+}
+
+double *foo2(void)
+{
+  return (double *)&a[0]; /* { dg-warning "strict-aliasing" } */
+}
+
+__complex__ double x;
+int *bar(void)
+{
+  return (int *)&__imag__ x; /* { dg-warning "strict-aliasing" } */
+}

gcc/testsuite/gcc.dg/Wstrict-overflow-21.c

+/* PR 32102: -Wall stomps on -Wstrict-overflow */
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=2 -Wall" } */
+int
+foo ()
+{
+  int i, bits;
+  for (i = 1, bits = 1; i > 0; i += i) /* { dg-warning "assuming signed overflow does not occur" "correct warning" } */
+    ++bits;
+  return bits;
+}
+