gcc/testsuite/gcc.c-torture/compile/20020715-1.c

   1 /* PR optimization/7153 */
   2 /* Verify that GCC doesn't promote a register when its
   3    lifetime is not limited to one basic block. */
   4
   5 void f(char);
   6 void g(void);
   7
   8 void scale(void)
   9 {
  10   int width;
  11   char bytes;
  12   char *src;
  13
  14   if (width)
  15   {
  16     bytes = *src;
  17     g();
  18     width *= bytes;
  19   }
  20
  21   f(bytes);
  22 }