/* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-cunrolli-details -fno-peel-loops -fno-tree-vrp -fdisable-tree-cunroll -fenable-tree-cunrolli=foo2 -fdisable-tree-cunrolli=foo" } */ unsigned a[100], b[100]; inline void bar() { a[10] = b[10]; } int foo(void) { int i; bar(); for (i = 0; i < 2; i++) { a[i]= b[i] + 1; } return 1; } int foo2(void) { int i; for (i = 0; i < 2; i++) { a[i]= b[i] + 1; } return 1; } /* { dg-final { scan-tree-dump-times "loop with 2 iterations completely unrolled" 1 "cunrolli" } } */