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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-optimized" } */
   3
   4 int f(unsigned x){
   5   x += 123;
   6   int y = x;
   7   y -= 99;
   8   return y;
   9 }
  10 unsigned g(int x){
  11   x += 123;
  12   unsigned y = x;
  13   y -= 99;
  14   return y;
  15 }
  16 int h(int x){
  17   x += __INT_MAX__;
  18   x += 1;
  19   return x;
  20 }
  21 int i(int x){
  22   x += __INT_MAX__;
  23   x += __INT_MAX__;
  24   return x;
  25 }
  26 typedef int S __attribute__((vector_size(16)));
  27 void j(S*x){
  28   *x += __INT_MAX__;
  29   *x += __INT_MAX__;
  30 }
  31
  32 /* { dg-final { scan-tree-dump-times " \\+ 24;" 2 "optimized" } } */
  33 /* { dg-final { scan-tree-dump-times "\\(unsigned int\\)" 2 "optimized" } } */
  34 /* { dg-final { scan-tree-dump-not "2147483647" "optimized" } } */