IRGen: Add tests for @cdecl @implementation

Author: xymus

test/IRGen/Inputs/objc_implementation.h

@@ -1,3 +1,4 @@
+#if __OBJC__
 #import <Foundation/Foundation.h>
 
 @interface ImplClass: NSObject <NSCopying>
@@ -31,11 +32,13 @@
 - (void)category2Method:(int)param;
 
 @end
+#endif
 
 extern void implFunc(int param);
 extern void implFuncCName(int param) __asm__("_implFuncAsmName");
+extern void implFuncRenamed_C(int param) __attribute__((swift_name("implFuncRenamed_Swift(param:)")));
 
-
+#if __OBJC__
 @interface NoImplClass
 
 - (void)noImplMethod:(int)param;
@@ -57,3 +60,4 @@ extern void implFuncCName(int param) __asm__("_implFuncAsmName");
 @property (assign) int afterInt;
 
 @end
+#endif

test/IRGen/cdecl_implementation.swift

@@ -0,0 +1,47 @@
+// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) \
+// RUN:   -enable-experimental-feature CImplementation \
+// RUN:   -enable-experimental-feature CDecl \
+// RUN:   -disable-objc-interop \
+// RUN:   -F %clang-importer-sdk-path/frameworks %s \
+// RUN:   -import-objc-header %S/Inputs/objc_implementation.h -emit-ir \
+// RUN:   -target %target-future-triple > %t.ir
+// RUN: %FileCheck --input-file %t.ir %s
+
+// REQUIRES: swift_feature_CImplementation
+// REQUIRES: swift_feature_CDecl
+
+@implementation @cdecl
+public func implFunc(_ param: Int32) {}
+
+@implementation @cdecl
+public func implFuncCName(_ param: Int32) {}
+
+@implementation @cdecl(implFuncRenamed_C)
+public func implFuncRenamed_Swift(param: Int32) {}
+
+public func fn() {
+  implFunc(2)
+  implFuncCName(3)
+  implFuncRenamed_Swift(param: 4)
+}
+
+/// implFunc(_:)
+// CHECK-LABEL: define{{.*}} void @implFunc
+
+// FIXME: We'd like this to be internal or hidden, not public.
+// CHECK: define{{.*}} swiftcc void @"$s20cdecl_implementation8implFuncyys5Int32VF"
+
+/// inplFuncCName(_:)
+// CHECK-LABEL: define{{.*}} void @"\01_implFuncAsmName"
+
+// FIXME: We'd like this to be internal or hidden, not public.
+// CHECK: define{{.*}} swiftcc void @"$s20cdecl_implementation13implFuncCNameyys5Int32VF"
+
+/// fn()
+// CHECK-LABEL: define{{.*}} swiftcc void @"$s20cdecl_implementation2fnyyF"
+// CHECK:   call void @implFunc
+// CHECK:   call void @"\01_implFuncAsmName"
+// CHECK:   call void @implFuncRenamed_C
+// CHECK:   ret void
+// CHECK: }
+

test/IRGen/objc_implementation.swift

@@ -185,11 +185,15 @@ public func implFunc(_ param: Int32) {}
 @_objcImplementation @_cdecl("implFuncCName")
 public func implFuncCName(_ param: Int32) {}
 
+@implementation @_cdecl("implFuncRenamed_C")
+public func implFuncRenamed_Swift(param: Int32) {}
+
 public func fn(impl: ImplClass, swiftSub: SwiftSubclass) {
   impl.mainMethod(0)
   swiftSub.mainMethod(1)
   implFunc(2)
   implFuncCName(3)
+  implFuncRenamed_Swift(param: 4)
 }
 
 // Swift calling convention -[ImplClass init]
@@ -329,12 +333,12 @@ public func fn(impl: ImplClass, swiftSub: SwiftSubclass) {
 // Swift calling convention SwiftSubclass.deinit (deallocating)
 // CHECK-LABEL: define swiftcc void @"$s19objc_implementation13SwiftSubclassCfD"
 
-// inplFunc(_:)
+// implFunc(_:)
 // CHECK-LABEL: define void @implFunc
 // FIXME: We'd like this to be internal or hidden, not public.
 // CHECK: define swiftcc void @"$s19objc_implementation8implFuncyys5Int32VF"
 
-// inplFuncCName(_:)
+// implFuncCName(_:)
 // CHECK-LABEL: define void @"\01_implFuncAsmName"
 // FIXME: We'd like this to be internal or hidden, not public.
 // CHECK: define swiftcc void @"$s19objc_implementation13implFuncCNameyys5Int32VF"
@@ -346,6 +350,7 @@ public func fn(impl: ImplClass, swiftSub: SwiftSubclass) {
 // CHECK:   [[SEL_2:%[^ ]+]] = load ptr, ptr @"\01L_selector(mainMethod:)", align 8
 // CHECK:   call void @objc_msgSend(ptr {{.*}}, ptr [[SEL_2]], i32 1)
 // CHECK:   call void @implFunc
+// CHECK:   call void @"\01_implFuncAsmName"
 // CHECK:   ret void
 // CHECK: }