1  /* { dg-do compile } */
       2  /* { dg-options "-O -fno-rounding-math -fdump-tree-optimized-raw" } */
       3  
       4  #define DEF(num, T1, T2) T2 f##num(T1 x) { \
       5      T1 y = -x; \
       6      T2 z = (T2)y; \
       7      return -z; \
       8  }
       9  DEF(0, double, float)
      10  
      11  /* { dg-final { scan-tree-dump-not "negate_expr" "optimized"} } */