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