gcc/testsuite/gcc.dg/ipa/ipa-icf-38.c

   1 /* { dg-do link } */
   2 /* { dg-require-alias "" } */
   3 /* { dg-options "-O2 -fdump-ipa-icf-optimized -flto -fdump-tree-optimized" } */
   4 /* { dg-require-effective-target lto } */
   5 /* { dg-additional-sources "ipa-icf-38a.c" }*/
   6
   7 /* Based on ipa-icf-3.c.  */
   8
   9 typedef int v4si __attribute__ ((vector_size (16)));
  10
  11 __attribute__ ((noinline))
  12 int foo(void)
  13 {
  14   v4si a = {1,2,3,4};
  15   v4si b = {3,2,1,4};
  16   v4si c;
  17
  18   return 54;
  19 }
  20
  21 extern int bar(void);
  22
  23 int main()
  24 {
  25   int volatile a = foo();
  26   int volatile b = bar();
  27
  28   return 0;
  29 }
  30
  31 /* { dg-final { scan-wpa-ipa-dump "Semantic equality hit:foo/\[0-9+\]+->bar/\[0-9+\]+" "icf"  } } */
  32 /* { dg-final { scan-wpa-ipa-dump "Equal symbols: 1" "icf"  } } */
  33 /* { dg-final { scan-ltrans-tree-dump "Function foo" "optimized" } } */
  34 /* { dg-final { scan-ltrans-tree-dump-not "Function bar" "optimized" } } */