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b21485dd1f
This eliminates a SIL verification error with `@c` functions, which provide definitions for foreign entrypoints. We were serializing @c definitions when we shouldn't be, which would cause problems down the line if those @c definitions referenced something internal that they shouldn't.
63 lines
3.3 KiB
Swift
63 lines
3.3 KiB
Swift
// RUN: %target-swift-emit-silgen -enable-experimental-feature Extern %s | %FileCheck %s
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// REQUIRES: swift_feature_Extern
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// CHECK-DAG: sil hidden_external [asmname "my_c_name"] @$s8extern_c9withCNameyS2iFTo : $@convention(c) (Int) -> Int
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@_extern(c, "my_c_name")
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func withCName(_ x: Int) -> Int
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// CHECK-DAG: sil hidden_external [asmname "take_c_func_ptr"] @$s8extern_c12takeCFuncPtryyS2iXCFTo : $@convention(c) (@convention(c) (Int) -> Int) -> ()
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@_extern(c, "take_c_func_ptr")
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func takeCFuncPtr(_ f: @convention(c) (Int) -> Int)
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// CHECK-DAG: sil [asmname "public_visible"] @$s8extern_c16publicVisibilityyS2iFTo : $@convention(c) (Int) -> Int
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@_extern(c, "public_visible")
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public func publicVisibility(_ x: Int) -> Int
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// CHECK-DAG: sil [asmname "private_visible"] @$s8extern_c17privateVisibility{{.*}} : $@convention(c) (Int) -> Int
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@_extern(c, "private_visible")
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private func privateVisibility(_ x: Int) -> Int
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// CHECK-DAG: sil hidden_external [asmname "withoutCName"] @$s8extern_c12withoutCNameSiyFTo : $@convention(c) () -> Int
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@_extern(c)
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func withoutCName() -> Int
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// CHECK-DAG: sil hidden [ossa] @$s8extern_c10defaultArgyySiFfA_ : $@convention(thin) () -> Int {
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// CHECK-DAG: sil hidden_external [asmname "default_arg"] @$s8extern_c10defaultArgyySiFTo : $@convention(c) (Int) -> ()
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@_extern(c, "default_arg")
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func defaultArg(_ x: Int = 42)
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func callMe(body: (Int) -> Int) -> Int {
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return body(17)
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}
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func main() {
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// CHECK-DAG: [[F1:%.+]] = function_ref @$s8extern_c9withCNameyS2iFTo : $@convention(c) (Int) -> Int
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// CHECK-DAG: [[F2:%.+]] = function_ref @$s8extern_c12takeCFuncPtryyS2iXCFTo : $@convention(c) (@convention(c) (Int) -> Int) -> ()
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// CHECK-DAG: apply [[F2]]([[F1]]) : $@convention(c) (@convention(c) (Int) -> Int) -> ()
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takeCFuncPtr(withCName)
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// CHECK-DAG: [[F3:%.+]] = function_ref @$s8extern_c16publicVisibilityyS2iFTo : $@convention(c) (Int) -> Int
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// CHECK-DAG: apply [[F3]]({{.*}}) : $@convention(c) (Int) -> Int
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_ = publicVisibility(42)
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// CHECK-DAG: [[F4:%.+]] = function_ref @$s8extern_c17privateVisibility{{.*}} : $@convention(c) (Int) -> Int
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// CHECK-DAG: apply [[F4]]({{.*}}) : $@convention(c) (Int) -> Int
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_ = privateVisibility(24)
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// CHECK-DAG: [[F5:%.+]] = function_ref @$s8extern_c12withoutCNameSiyFTo : $@convention(c) () -> Int
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// CHECK-DAG: apply [[F5]]() : $@convention(c) () -> Int
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_ = withoutCName()
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// CHECK-DAG: [[F6:%.+]] = function_ref @$s8extern_c10defaultArgyySiFfA_ : $@convention(thin) () -> Int
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// CHECK-DAG: [[DEFAULT_V:%.+]] = apply [[F6]]() : $@convention(thin) () -> Int
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// CHECK-DAG: [[F7:%.+]] = function_ref @$s8extern_c10defaultArgyySiFTo : $@convention(c) (Int) -> ()
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// CHECK-DAG: apply [[F7]]([[DEFAULT_V]]) : $@convention(c) (Int) -> ()
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defaultArg()
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// CHECK-DAG: [[CREF:%[0-9]+]] = function_ref @$s8extern_c16publicVisibilityyS2iFTO : $@convention(thin) (Int) -> Int
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// CHECK-DAG: [[THICK_CREF:%[0-9]+]] = thin_to_thick_function [[CREF]] to $@callee_guaranteed (Int) -> Int
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// CHECK-DAG: [[NOESCAPE_CREF:%[0-9]+]] = convert_escape_to_noescape [not_guaranteed] [[THICK_CREF]] to $@noescape @callee_guaranteed (Int) -> Int
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// CHECK-DAG: [[CALL_ME:%[0-9]+]] = function_ref @$s8extern_c6callMe4bodyS3iXE_tF
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// CHECK-DAG: apply [[CALL_ME]]([[NOESCAPE_CREF]]) : $@convention(thin) (@guaranteed @noescape @callee_guaranteed (Int) -> Int) -> Int
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_ = callMe(body: publicVisibility)
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}
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main()
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