/* A test for strength reduction and induction variable elimination. Target is restricted to x86 type architectures, so that we may assume something about memory addressing modes. */ /* { dg-do compile { target i?86-*-* x86_64-*-* } } */ /* { dg-options "-O1 -fdump-tree-vars" } */ int arr_base[100]; int foo(int); void xxx(void) { int iter; for (iter = 0; iter < 100; iter++) arr_base[iter] = foo (iter); } /* Access to arr_base[iter].y should not be strength reduced, since we have a memory mode including multiplication by 4. */ /* { dg-final { scan-tree-dump-times "arr_base.*=" 1 "vars" } } */ /* And original induction variable should be preserved. */ /* { dg-final { scan-tree-dump-times "int iter" 1 "vars" } } */