Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103

1 files changed, 86 insertions, 0 deletions

diff --git a/clang/test/CodeGenObjCXX/arc-new-delete.mm b/clang/test/CodeGenObjCXX/arc-new-delete.mm
new file mode 100644
index 00000000000..e638870fdd0
--- /dev/null
+++ b/clang/test/CodeGenObjCXX/arc-new-delete.mm
@@ -0,0 +1,86 @@
+// RUN: %clang_cc1 -fobjc-nonfragile-abi -fobjc-arc -fblocks -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s | FileCheck %s
+
+typedef __strong id strong_id;
+typedef __weak id weak_id;
+
+// CHECK: define void @_Z8test_newP11objc_object
+void test_new(id invalue) {
+  // CHECK: alloca i8*
+  // CHECK-NEXT: call i8* @objc_retain
+
+  // CHECK: call noalias i8* @_Znwm
+  // CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
+  // CHECK-NEXT: store i8* null, i8**
+  new strong_id;
+  // CHECK: call noalias i8* @_Znwm
+  // CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
+  // CHECK-NEXT: store i8* null, i8**
+  new weak_id;
+
+  // CHECK: call noalias i8* @_Znwm
+  // CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
+  // CHECK-NEXT: store i8* null, i8**
+  new __strong id;
+  // CHECK: call noalias i8* @_Znwm
+  // CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
+  // CHECK-NEXT: store i8* null, i8**
+  new __weak id;
+
+  // CHECK: call noalias i8* @_Znwm
+  // CHECK: call i8* @objc_retain
+  // CHECK: store i8*
+  new __strong id(invalue);
+
+  // CHECK: call noalias i8* @_Znwm
+  // CHECK: call i8* @objc_initWeak
+  new __weak id(invalue);
+
+  // CHECK: call void @objc_release
+  // CHECK: ret void
+}
+
+// CHECK: define void @_Z14test_array_new
+void test_array_new() {
+  // CHECK: call noalias i8* @_Znam
+  // CHECK: store i64 17, i64*
+  // CHECK: call void @llvm.memset.p0i8.i64
+  new strong_id[17];
+
+  // CHECK: call noalias i8* @_Znam
+  // CHECK: store i64 17, i64*
+  // CHECK: call void @llvm.memset.p0i8.i64
+  new weak_id[17];
+  // CHECK: ret void
+}
+
+// CHECK: define void @_Z11test_deletePU8__strongP11objc_objectPU6__weakS0_
+void test_delete(__strong id *sptr, __weak id *wptr) {
+  // CHECK: br i1
+  // CHECK: load i8**
+  // CHECK-NEXT: call void @objc_release
+  // CHECK: call void @_ZdlPv
+  delete sptr;
+
+  // CHECK: call void @objc_destroyWeak
+  // CHECK: call void @_ZdlPv
+  delete wptr;
+
+  // CHECK: ret void
+}
+
+// CHECK: define void @_Z17test_array_deletePU8__strongP11objc_objectPU6__weakS0_
+void test_array_delete(__strong id *sptr, __weak id *wptr) {
+  // CHECK: load i64*
+  // CHECK: {{icmp ne i64.*, 0}}
+  // CHECK: call void @objc_release
+  // CHECK: br label
+  // CHECK: call void @_ZdaPv
+  delete [] sptr;
+
+  // CHECK: load i64*
+  // CHECK: {{icmp ne i64.*, 0}}
+  // CHECK: call void @objc_destroyWeak
+  // CHECK: br label
+  // CHECK: call void @_ZdaPv
+  delete [] wptr;
+}