added tests as prepared by oliver

test/val/rotate2.c

@@ -0,0 +1,71 @@
+/*
+  !!DESCRIPTION!! Shift bytes left and right by a variable.
+  !!ORIGIN!!      SDCC regression tests
+  !!LICENCE!!     GPL, read COPYING.GPL
+*/
+
+#include <stdio.h>
+#include <limits.h>
+
+unsigned char success=0;
+unsigned char failures=0;
+unsigned char dummy=0;
+
+#ifdef SUPPORT_BIT_TYPES
+bit bit0 = 0;
+#endif
+unsigned int aint0 = 0;
+unsigned int aint1 = 0;
+unsigned char achar0 = 0;
+unsigned char achar1 = 0;
+unsigned char achar2 = 0;
+unsigned char achar3 = 0;
+
+void done()
+{
+  dummy++;
+}
+
+void shift_right_var(void)
+{
+  achar0 >>= achar1;
+}
+
+void shift_left_var(void)
+{
+  achar0 <<= achar1;
+}
+
+void shift_int_left_1(void)
+{
+  aint0 <<= 1;
+}
+
+int main(void)
+{
+  char i;
+
+  achar0 = 1;
+  achar1 = 1;
+  shift_left_var();
+
+  if(achar0 !=2)
+    failures++;
+
+  achar0 = 1;
+  achar1 = 1;
+  achar2 = 1;
+  for(i=0; i<7; i++) {
+    shift_left_var();
+    achar2 <<= 1;
+
+    if(achar2 != achar0)
+      failures++;
+  }
+
+  success=failures;
+  done();
+  printf("failures: %d\n",failures);
+
+  return failures;
+}