New.

From-SVN: r54630

gcc/testsuite/gcc.c-torture/execute/20020614-1.c

+/* PR c/6677 */
+/* Verify that GCC doesn't perform illegal simplifications
+   when folding constants.  */
+
+#include <limits.h>
+
+extern void abort (void);
+extern void exit (int);
+
+int main (void)
+{
+  int i;
+  signed char j;
+  unsigned char k;
+
+  i = SCHAR_MAX;
+
+  j = ((signed char) (i << 1)) / 2;
+
+  if (j != -1)
+    abort();
+
+  j = ((signed char) (i * 2)) / 2;
+
+  if (j != -1)
+    abort();
+
+  i = UCHAR_MAX;
+
+  k = ((unsigned char) (i << 1)) / 2;
+
+  if (k != UCHAR_MAX/2)
+    abort();
+
+  k = ((unsigned char) (i * 2)) / 2;
+
+  if (k != UCHAR_MAX/2)
+    abort();
+
+  exit(0);
+}