/* PR rtl-optimization/18928 *//* { dg-do compile { target fpic } } *//* { dg-options "-O2 -fPIC" } */const char *toHex( unsigned short u ){  static char hexVal[5];  int i = 3;  while ( i >= 0 ) {    unsigned short hex = (u & 0x000f);    if ( hex < 0x0a )      hexVal[i] = '0'+hex;    else      hexVal[i] = 'A'+(hex-0x0a);    i--;  }  hexVal[4] = '\0';  return hexVal;}