gcc/testsuite/gcc.dg/fold-convlshift-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 unsigned int foo(unsigned int i)
   5 {
   6   int t1 = i;
   7   int t2 = t1 << 8;
   8   return t2;
   9 }
  10
  11 int bar(int i)
  12 {
  13   unsigned int t1 = i;
  14   unsigned int t2 = t1 << 8;
  15   return t2;
  16 }
  17
  18 /* { dg-final { scan-tree-dump-not "\\(int\\)" "optimized" } } */
  19 /* { dg-final { scan-tree-dump-not "\\(unsigned int\\)" "optimized" } } */
  20