| // REQUIRES: plus_zero_runtime |
| |
| // RUN: %target-swift-frontend -module-name rethrows -enable-sil-ownership -emit-sil -verify %s | %FileCheck %s |
| |
| @discardableResult |
| func rethrower(_ fn: () throws -> Int) rethrows -> Int { |
| return try fn() |
| } |
| func thrower() throws -> Int { return 0 } |
| func nonthrower() -> Int { return 0 } |
| |
| // CHECK-LABEL: sil hidden @$S8rethrows5test0yyKF : $@convention(thin) () -> @error Error { |
| // CHECK: [[THROWER:%.*]] = function_ref @$S8rethrows7throwerSiyKF : $@convention(thin) () -> (Int, @error Error) |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[THROWER]] |
| // CHECK: [[CVT:%.*]] = convert_escape_to_noescape [[T0]] |
| // CHECK: [[RETHROWER:%.*]] = function_ref @$S8rethrows9rethroweryS2iyKXEKF : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[CVT]]) : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[RESULT_T0:%.*]] : $Int): |
| // FIXME - SR-6979: We should be able to eliminate this strong_release. |
| // CHECK-NEXT: strong_release [[T0]] |
| // CHECK-NEXT: [[T1:%.*]] = tuple () |
| // CHECK-NEXT: return [[T1]] |
| // CHECK: [[ERROR]]([[RESULT_T0:%.*]] : $Error): |
| // FIXME - SR-6979: We should be able to eliminate this strong_release. |
| // CHECK-NEXT: strong_release [[T0]] |
| // CHECK-NEXT: throw [[RESULT_T0]] |
| func test0() throws { |
| try rethrower(thrower) |
| } |
| |
| // CHECK-LABEL: sil hidden @$S8rethrows5test1yyKF : $@convention(thin) () -> @error Error { |
| // CHECK: [[CLOSURE:%.*]] = function_ref @$S8rethrows5test1yyKFSiyKXEfU_ : $@convention(thin) () -> (Int, @error Error) |
| // CHECK: [[CVT:%.*]] = convert_function [[CLOSURE]] |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[CVT]] |
| // CHECK: [[RETHROWER:%.*]] = function_ref @$S8rethrows9rethroweryS2iyKXEKF : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[T0]]) : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]({{%.*}} : $Int): |
| // CHECK-NEXT: [[T1:%.*]] = tuple () |
| // CHECK-NEXT: return [[T1]] |
| // CHECK: [[ERROR]]([[ERROR:%.*]] : $Error): |
| // CHECK-NEXT: throw [[ERROR]] |
| // Closure. |
| // CHECK-LABEL: sil private @$S8rethrows5test1yyKFSiyKXEfU_ : $@convention(thin) () -> (Int, @error Error) { |
| // CHECK: [[THROWER:%.*]] = function_ref @$S8rethrows7throwerSiyKF : $@convention(thin) () -> (Int, @error Error) |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[THROWER]] |
| // CHECK: [[CVT:%.*]] = convert_escape_to_noescape [[T0]] |
| // CHECK: [[RETHROWER:%.*]] = function_ref @$S8rethrows9rethroweryS2iyKXEKF : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[CVT]]) : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[RESULT:%.*]] : $Int): |
| // CHECK-NEXT: strong_release [[T0]] |
| // CHECK-NEXT: return [[RESULT]] |
| // CHECK: [[ERROR]]([[ERROR:%.*]] : $Error): |
| // CHECK-NEXT: strong_release [[T0]] |
| // CHECK-NEXT: throw [[ERROR]] |
| func test1() throws { |
| try rethrower { try rethrower(thrower) } |
| } |
| |
| // CHECK-LABEL: sil hidden @$S8rethrows5test2yyF : $@convention(thin) () -> () { |
| // CHECK: [[NONTHROWER:%.*]] = function_ref @$S8rethrows10nonthrowerSiyF : $@convention(thin) () -> Int |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[NONTHROWER]] |
| // CHECK: [[T1:%.*]] = convert_function [[T0]] : $@callee_guaranteed () -> Int to $@callee_guaranteed () -> (Int, @error Error) |
| // CHECK: [[T2:%.*]] = convert_escape_to_noescape [[T1]] |
| // CHECK: [[RETHROWER:%.*]] = function_ref @$S8rethrows9rethroweryS2iyKXEKF : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[T2]]) : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[T0:%.*]] : $Int): |
| // CHECK-NEXT: strong_release [[T1]] |
| // CHECK-NEXT: [[RESULT:%.*]] = tuple () |
| // CHECK-NEXT: return [[RESULT]] |
| // CHECK: [[ERROR]]([[T0:%.*]] : $Error): |
| // CHECK-NEXT: unreachable |
| func test2() { |
| rethrower(nonthrower) |
| } |
| |
| // CHECK-LABEL: sil hidden @$S8rethrows5test3yyF : $@convention(thin) () -> () { |
| // CHECK: [[CLOSURE:%.*]] = function_ref @$S8rethrows5test3yyFSiyXEfU_ : $@convention(thin) () -> Int |
| // CHECK: [[CVT:%.*]] = convert_function [[CLOSURE]] : $@convention(thin) () -> Int to $@convention(thin) @noescape () -> Int |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[CVT]] |
| // CHECK: [[T1:%.*]] = convert_function [[T0]] : $@noescape @callee_guaranteed () -> Int to $@noescape @callee_guaranteed () -> (Int, @error Error) |
| // CHECK: [[RETHROWER:%.*]] = function_ref @$S8rethrows9rethroweryS2iyKXEKF : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[T1]]) : $@convention(thin) (@noescape @callee_guaranteed () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]({{%.*}} : $Int): |
| // CHECK-NEXT: [[RESULT:%.*]] = tuple () |
| // CHECK-NEXT: return [[RESULT]] |
| // CHECK: [[ERROR]]([[ERROR:%.*]] : $Error): |
| // CHECK-NEXT: unreachable |
| // CHECK-LABEL: // end sil function '$S8rethrows5test3yyF' |
| func test3() { |
| rethrower { rethrower(nonthrower) } |
| } |