| /* { dg-do compile } */ |
| /* { dg-options "-O -fdump-tree-fre-details" } */ |
| |
| int f(); |
| |
| template<typename predicate> |
| class noop_t { |
| const predicate &pred; |
| public: |
| explicit noop_t(const predicate &p) : pred(p) {} |
| |
| int operator()() const { return pred(); } |
| }; |
| |
| template<typename predicate> |
| inline noop_t<predicate> noop(const predicate pred) { |
| return noop_t<predicate>(pred); |
| } |
| |
| int x() |
| { |
| return (noop(noop(noop(noop(noop(noop(noop(noop(noop(f)))))))))()); |
| } |
| |
| /* We should optimize this to a direct call. */ |
| |
| /* { dg-final { scan-tree-dump "Replacing call target with f" "fre" } } */ |
| /* { dg-final { cleanup-tree-dump "fre" } } */ |
