/* 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-*-* } } */ /* APPLE LOCAL begin 4874947 mainline */ /* { dg-skip-if "" { i?86-*-* x86_64-*-* } { "-fpic" "-fPIC" } { "" } } */ /* { dg-options "-O1 -fno-pic -fno-PIC -fdump-tree-optimized" } */ /* APPLE LOCAL end 4874947 mainline */ int arr_base[100]; int foo(int); void xxx(void) { long 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 "MEM" 1 "optimized" } } */ /* { dg-final { scan-tree-dump-times "step:" 1 "optimized" } } */ /* And original induction variable should be preserved. */ /* { dg-final { scan-tree-dump-times "int iter" 1 "optimized" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */