File: 20020715-1.c

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gcc-arm-none-eabi 15%3A7-2018-q2-6
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/* PR optimization/7153 */
/* Verify that GCC doesn't promote a register when its
   lifetime is not limited to one basic block. */

void f(char);
void g(void);

void scale(void)
{
  int width;
  char bytes;
  char *src;

  if (width)
  {
    bytes = *src;
    g();
    width *= bytes;
  }

  f(bytes);
}