gcc/testsuite/gcc.dg/tree-ssa/negminus.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fno-rounding-math -fno-signed-zeros -fdump-tree-optimized-raw" } */
   3
   4 double f(double a, double b){
   5     double c = a - b;
   6     return -c;
   7 }
   8
   9 int g(unsigned x){
  10     unsigned y = ~x;
  11     int z = (int) y;
  12     return -z;
  13 }
  14
  15 unsigned h(unsigned a, unsigned b, unsigned c){
  16     unsigned d = b - c;
  17     unsigned e = a + d;
  18     return -e;
  19 }
  20
  21 /* { dg-final { scan-tree-dump-not "negate_expr" "optimized"} } */