test/SILGen/local_captures.swift

// RUN: %target-swift-frontend  -parse-as-library -emit-silgen %s | FileCheck %s

// Check that we don't crash if a local function references another local
// function without captures.

// CHECK-LABEL: sil hidden @_TF14local_captures10globalfuncFT_FT_T_ : $@convention(thin) () -> @owned @callee_owned () -> ()
func globalfunc() -> () -> () {

	// CHECK-LABEL: sil shared @_TFF14local_captures10globalfuncFT_FT_T_L_9localFuncFT_T_ : $@convention(thin) () -> ()
	func localFunc() {
	}

	// CHECK-LABEL: sil shared @_TFF14local_captures10globalfuncFT_FT_T_L_6callitfT_T_ : $@convention(thin) () -> ()
	// CHECK: function_ref @_TFF14local_captures10globalfuncFT_FT_T_L_9localFuncFT_T_ : $@convention(thin) () -> ()
	// CHECK-NEXT: apply
	func callit() {
		localFunc()
	}

	// CHECK-LABEL: sil shared @_TFF14local_captures10globalfuncFT_FT_T_L_5getitfT_FT_T_ : $@convention(thin) () -> @owned @callee_owned () -> ()
	// CHECK: function_ref @_TFF14local_captures10globalfuncFT_FT_T_L_9localFuncFT_T_ : $@convention(thin) () -> ()
	// CHECK-NEXT: thin_to_thick_function
	// CHECK-NEXT: return
	func getit() -> () -> () {
		return localFunc
	}

	callit()
	return getit()
}