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

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