| // RUN: %target-swift-frontend -primary-file %s -parse-as-library -emit-sil -O | FileCheck %s |
| |
| private func recFunc(x: Int32) -> Int32 { |
| if x > 0 { |
| return recFunc(x - 1) |
| } |
| return 0 |
| } |
| |
| //CHECK-LABEL: sil {{.*}}callit |
| // CHECK: bb0: |
| // CHECK-NEXT: integer_literal $Builtin.Int32, 0 |
| // CHECK-NEXT: struct |
| // CHECK-NEXT: return |
| |
| func callit() -> Int32 { |
| return recFunc(3) |
| } |
| |
| private func recFuncManyCalls(x: Int32) -> Int32 { |
| if x > 4 { |
| return recFuncManyCalls(x - 1) |
| + recFuncManyCalls(x - 2) |
| + recFuncManyCalls(x - 3) |
| + recFuncManyCalls(x - 4) |
| + recFuncManyCalls(x - 5) |
| } |
| return 0 |
| } |
| |
| // CHECK-LABEL: sil hidden {{.*}}callother |
| // CHECK: bb0: |
| // CHECK: [[FN:%.*]] = function_ref {{.*}}recFuncManyCalls |
| // CHECK: [[APPLY:%.*]] = apply [[FN]] |
| // CHECK-NOT: apply |
| // CHECK: return [[APPLY]] |
| func callother() -> Int32 { |
| return recFuncManyCalls(10) |
| } |
