| // 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: [[INTLIT:%.*]] = integer_literal $Builtin.Int32, 3 |
| // CHECK: [[STRUCT:%.*]] = struct $Int32 ([[INTLIT]] : $Builtin.Int32) |
| // CHECK: [[REF:%.*]] = function_ref @$s16inline_recursive7recFunc33_38E63D320CFF538A1F98BBC31453B1EBLLys5Int32VAEF |
| // CHECK: [[APPLY:%.*]] = apply [[REF]]([[STRUCT]]) |
| // CHECK: return [[APPLY]] |
| |
| 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) |
| } |
