Add the clang library to the repo (with some of my changes, too).

1 files changed, 1539 insertions, 0 deletions

diff --git a/clang/test/CodeGenObjC/arc.m b/clang/test/CodeGenObjC/arc.m
new file mode 100644
index 0000000..2a98b10
--- /dev/null
+++ b/clang/test/CodeGenObjC/arc.m
@@ -0,0 +1,1539 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-optzns -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-GLOBALS %s
+
+// CHECK: define void @test0
+void test0(id x) {
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{.*}})
+  // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
+  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[TMP]])
+  // CHECK-NEXT: ret void
+}
+
+// CHECK: define i8* @test1(i8*
+id test1(id x) {
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: [[Y:%.*]] = alloca i8*
+  // CHECK-NEXT: alloca i32
+  // CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{%.*}})
+  // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
+  // CHECK-NEXT: store i8* null, i8** [[Y]]
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T0]])
+  // CHECK-NEXT: store i32
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[RET]])
+  // CHECK-NEXT: ret i8* [[T1]]
+  id y;
+  return y;
+}
+
+@interface Test2
++ (void) class_method;
+- (void) inst_method;
+@end
+@implementation Test2
+
+// The self pointer of a class method is not retained.
+// CHECK: define internal void @"\01+[Test2 class_method]"
+// CHECK:      alloca
+// CHECK-NEXT: alloca
+// CHECK-NEXT: store
+// CHECK-NEXT: store
+// CHECK-NEXT: ret void
++ (void) class_method {}
+
+// The self pointer of an instance method is not retained.
+// CHECK: define internal void @"\01-[Test2 inst_method]"
+// CHECK:      alloca
+// CHECK-NEXT: alloca
+// CHECK-NEXT: store
+// CHECK-NEXT: store
+// CHECK-NEXT: ret void
+- (void) inst_method {}
+@end
+
+@interface Test3
++ (id) alloc;
+- (id) initWith: (int) x;
+- (id) copy;
+@end
+
+// CHECK: define void @test3_unelided()
+void test3_unelided() {
+  extern void test3_helper(void);
+
+  // CHECK:      [[X:%.*]] = alloca [[TEST3:%.*]]*
+  // CHECK-NEXT: store [[TEST3]]* null, [[TEST3]]** [[X]], align
+  Test3 *x;
+
+  // Call to +alloc.
+  // CHECK-NEXT: load {{.*}}* @"\01L_OBJC_CLASSLIST_REFERENCES_
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: call void @objc_release(i8*
+  [Test3 alloc];
+
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]** [[X]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8*
+  // CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[T1]],
+  // CHECK-NEXT: call void @objc_release(i8* [[COPY]]) nounwind
+  [x copy];
+
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]** [[X]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
+  // CHECK-NEXT: ret void
+}
+
+// CHECK: define void @test3()
+void test3() {
+  // CHECK:      [[X:%.*]] = alloca i8*
+
+  id x = [[Test3 alloc] initWith: 5];
+
+  // Call to +alloc.
+  // CHECK-NEXT: load {{.*}}* @"\01L_OBJC_CLASSLIST_REFERENCES_
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
+  // CHECK-NEXT: bitcast
+
+  // Call to -initWith: with elided retain of consumed argument.
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* 
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[INIT:%.*]] = bitcast
+  // Assignment for initialization, retention elided.
+  // CHECK-NEXT: store i8* [[INIT]], i8** [[X]]
+
+  // Call to -copy.
+  // CHECK-NEXT: [[V:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[V]],
+
+  // Assignment to x.
+  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: store i8* [[COPY]], i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
+
+  x = [x copy];
+
+  // Cleanup for x.
+  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
+  
+  // CHECK-NEXT: ret void
+}
+
+// CHECK: define i8* @test4()
+id test4() {
+  // Call to +alloc.
+  // CHECK:      load {{.*}}* @"\01L_OBJC_CLASSLIST_REFERENCES_
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
+  // CHECK-NEXT: [[ALLOC:%.*]] = bitcast
+
+  // Call to -initWith: with elided retain of consumed argument.
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[ALLOC:%.*]] = bitcast
+  // CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* [[ALLOC]],
+
+  // Initialization of return value, occuring within full-expression.
+  // Retain/release elided.
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[INIT:%.*]] = bitcast
+  // CHECK-NEXT: [[RET:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[INIT]])
+
+  // CHECK-NEXT: ret i8* [[RET]]
+
+  return [[Test3 alloc] initWith: 6];
+}
+
+@interface Test5 {
+@public
+  id var;
+}
+@end
+
+// CHECK: define void @test5
+void test5(Test5 *x, id y) {
+  // Prologue.
+  // CHECK:      [[X:%.*]] = alloca [[TEST5:%.*]]*,
+  // CHECK-NEXT: [[Y:%.*]] = alloca i8*
+  // CHECK-NEXT: bitcast [[TEST5]]* {{%.*}} to i8*
+  // CHECK-NEXT: call i8* @objc_retain
+  // CHECK-NEXT: [[PARMX:%.*]] = bitcast i8* {{%.*}} to [[TEST5]]*
+  // CHECK-NEXT: store [[TEST5]]* [[PARMX]], [[TEST5]]** [[X]]
+  // CHECK-NEXT: call i8* @objc_retain
+  // CHECK-NEXT: store
+
+  // CHECK-NEXT: load [[TEST5]]** [[X]]
+  // CHECK-NEXT: load i64* @"OBJC_IVAR_$_Test5.var"
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: getelementptr
+  // CHECK-NEXT: [[VAR:%.*]] = bitcast
+  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[VAR]]
+  // CHECK-NEXT: store i8* null, i8** [[VAR]]
+  // CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
+  x->var = 0;
+
+  // CHECK-NEXT: [[YVAL:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: load [[TEST5]]** [[X]]
+  // CHECK-NEXT: load i64* @"OBJC_IVAR_$_Test5.var"
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: getelementptr
+  // CHECK-NEXT: [[VAR:%.*]] = bitcast
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retain(i8* [[YVAL]]) nounwind
+  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[VAR]]
+  // CHECK-NEXT: store i8* [[T0]], i8** [[VAR]]
+  // CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
+  x->var = y;
+
+  // Epilogue.
+  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]** [[X]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]* [[T0]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
+  // CHECK-NEXT: ret void
+}
+
+id test6_helper(void) __attribute__((ns_returns_retained));
+// CHECK: define void @test6()
+void test6() {
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test6_helper()
+  // CHECK-NEXT: store i8* [[CALL]], i8** [[X]]
+  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: ret void
+  id x = test6_helper();
+}
+
+void test7_helper(id __attribute__((ns_consumed)));
+// CHECK: define void @test7()
+void test7() {
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: store i8* null, i8** [[X]]
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]]) nounwind
+  // CHECK-NEXT: call void @test7_helper(i8* [[T1]])
+  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: ret void
+  id x;
+  test7_helper(x);
+}
+
+id test8_helper(void) __attribute__((ns_returns_retained));
+void test8() {
+  __unsafe_unretained id x = test8_helper();
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @test8_helper()
+  // CHECK-NEXT: store i8* [[T0]], i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
+  // CHECK-NOT:  imprecise_release
+  // CHECK-NEXT: ret void
+}
+
+id test9_helper(void) __attribute__((ns_returns_retained));
+void test9() {
+  id x __attribute__((objc_precise_lifetime)) = test9_helper();
+  x = 0;
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test9_helper()
+  // CHECK-NEXT: store i8* [[CALL]], i8** [[X]]
+
+  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: store i8* null, i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
+
+  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
+  // CHECK-NOT:  clang.imprecise_release
+
+  // CHECK-NEXT: ret void
+}
+
+@interface Test10
+@property (retain) Test10 *me;
+@end
+void test10() {
+  Test10 *x;
+  id y = x.me.me;
+
+  // CHECK:      define void @test10()
+  // CHECK:      [[X:%.*]] = alloca [[TEST10:%.*]]*, align
+  // CHECK-NEXT: [[Y:%.*]] = alloca i8*, align
+  // CHECK-NEXT: store [[TEST10]]* null, [[TEST10]]** [[X]]
+  // CHECK-NEXT: load [[TEST10]]** [[X]], align
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_{{[0-9]*}}"
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
+  // CHECK-NEXT: [[V:%.*]] = bitcast i8* [[T2]] to [[TEST10]]*
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_{{[0-9]*}}"
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST10]]*
+  // CHECK-NEXT: [[T4:%.*]] = bitcast [[TEST10]]* [[T3]] to i8*
+  // CHECK-NEXT: store i8* [[T4]], i8** [[Y]]
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST10]]* [[V]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST10]]** [[X]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  // CHECK-NEXT: ret void
+}
+
+void test11(id (*f)(void) __attribute__((ns_returns_retained))) {
+  // CHECK:      define void @test11(
+  // CHECK:      [[F:%.*]] = alloca i8* ()*, align
+  // CHECK-NEXT: [[X:%.*]] = alloca i8*, align
+  // CHECK-NEXT: store i8* ()* {{%.*}}, i8* ()** [[F]], align
+  // CHECK-NEXT: [[T0:%.*]] = load i8* ()** [[F]], align
+  // CHECK-NEXT: [[T1:%.*]] = call i8* [[T0]]()
+  // CHECK-NEXT: store i8* [[T1]], i8** [[X]], align
+  // CHECK-NEXT: [[T3:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T3]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: ret void
+  id x = f();
+}
+
+void test12(void) {
+  extern id test12_helper(void);
+
+  // CHECK:      define void @test12()
+  // CHECK:      [[X:%.*]] = alloca i8*, align
+  // CHECK-NEXT: [[Y:%.*]] = alloca i8*, align
+
+  __weak id x = test12_helper();
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: call i8* @objc_initWeak(i8** [[X]], i8* [[T1]])
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+
+  x = test12_helper();
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: call i8* @objc_storeWeak(i8** [[X]], i8* [[T1]])
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+
+  id y = x;
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_loadWeakRetained(i8** [[X]])
+  // CHECK-NEXT: store i8* [[T2]], i8** [[Y]], align
+
+  // CHECK-NEXT: [[T4:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T4]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]])
+  // CHECK-NEXT: ret void
+}
+
+// Indirect consuming calls.
+void test13(void) {
+  // CHECK:      define void @test13()
+  // CHECK:      [[X:%.*]] = alloca i8*, align
+  // CHECK-NEXT: store i8* null, i8** [[X]], align
+  id x;
+
+  typedef void fnty(id __attribute__((ns_consumed)));
+  extern fnty *test13_func;
+  // CHECK-NEXT: [[FN:%.*]] = load void (i8*)** @test13_func, align
+  // CHECK-NEXT: [[X_VAL:%.*]] = load i8** [[X]], align
+  // CHECK-NEXT: [[X_TMP:%.*]] = call i8* @objc_retain(i8* [[X_VAL]]) nounwind
+  // CHECK-NEXT: call void [[FN]](i8* [[X_TMP]])
+  test13_func(x);
+
+  extern fnty ^test13_block;
+  // CHECK-NEXT: [[TMP:%.*]] = load void (i8*)** @test13_block, align
+  // CHECK-NEXT: [[BLOCK:%.*]] = bitcast void (i8*)* [[TMP]] to [[BLOCKTY:%.*]]*
+  // CHECK-NEXT: [[BLOCK_FN_PTR:%.*]] = getelementptr inbounds [[BLOCKTY]]* [[BLOCK]], i32 0, i32 3
+  // CHECK-NEXT: [[BLOCK_OPAQUE:%.*]] = bitcast [[BLOCKTY]]* [[BLOCK]] to i8*
+  // CHECK-NEXT: [[X_VAL:%.*]] = load i8** [[X]], align
+  // CHECK-NEXT: [[X_TMP:%.*]] = call i8* @objc_retain(i8* [[X_VAL]]) nounwind
+  // CHECK-NEXT: [[BLOCK_FN_TMP:%.*]] = load i8** [[BLOCK_FN_PTR]]
+  // CHECK-NEXT: [[BLOCK_FN:%.*]] = bitcast i8* [[BLOCK_FN_TMP]] to void (i8*, i8*)*
+  // CHECK-NEXT: call void [[BLOCK_FN]](i8* [[BLOCK_OPAQUE]], i8* [[X_TMP]])
+  test13_block(x);
+
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
+  // CHECK-NEXT: ret void
+}
+
+@interface Test16_super @end
+@interface Test16 : Test16_super {
+  id z;
+}
+@property (assign) int x;
+@property (retain) id y;
+- (void) dealloc;
+@end
+@implementation Test16
+@synthesize x;
+@synthesize y;
+- (void) dealloc {
+  // CHECK:    define internal void @"\01-[Test16 dealloc]"(
+  // CHECK:      [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align
+  // CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align
+  // CHECK-NEXT: alloca
+  // CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align
+  // CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
+  // CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]** [[SELF]]
+
+  // Call super.
+  // CHECK-NEXT: [[BASE2:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
+  // CHECK-NEXT: [[T0:%.*]] = getelementptr
+  // CHECK-NEXT: store i8* [[BASE2]], i8** [[T0]]
+  // CHECK-NEXT: load {{%.*}}** @"\01L_OBJC_CLASSLIST_SUP_REFS_$_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: getelementptr
+  // CHECK-NEXT: store
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: call void bitcast (i8* ({{.*}})* @objc_msgSendSuper2 to void (
+  // CHECK-NEXT: ret void
+}
+
+// .cxx_destruct
+  // CHECK:    define internal void @"\01-[Test16 .cxx_destruct]"(
+  // CHECK:      [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align
+  // CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align
+  // CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align
+  // CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
+  // CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]** [[SELF]]
+
+  // Destroy y.
+  // CHECK-NEXT: [[Y_OFF:%.*]] = load i64* @"OBJC_IVAR_$_Test16.y"
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
+  // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[Y_OFF]]
+  // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
+  // CHECK-NEXT: call void @objc_storeStrong(i8** [[T2]], i8* null) nounwind
+
+  // Destroy z.
+  // CHECK-NEXT: [[Z_OFF:%.*]] = load i64* @"OBJC_IVAR_$_Test16.z"
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
+  // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[Z_OFF]]
+  // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
+  // CHECK-NEXT: call void @objc_storeStrong(i8** [[T2]], i8* null) nounwind
+
+  // CHECK-NEXT: ret void
+
+@end
+
+// This shouldn't crash.
+@interface Test17A
+@property (assign) int x;
+@end
+@interface Test17B : Test17A
+@end
+@implementation Test17B
+- (int) x { return super.x + 1; }
+@end
+
+void test19() {
+  // CHECK: define void @test19()
+  // CHECK:      [[X:%.*]] = alloca [5 x i8*], align 16
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [5 x i8*]* [[X]] to i8*
+  // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 40, i32 16, i1 false)
+  id x[5];
+
+  extern id test19_helper(void);
+  x[2] = test19_helper();
+
+  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test19_helper()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]]) nounwind
+  // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [5 x i8*]* [[X]], i32 0, i64 2
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[SLOT]]
+  // CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
+
+  // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x i8*]* [[X]], i32 0, i32 0
+  // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[BEGIN]], i64 5
+  // CHECK-NEXT: br label
+
+  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
+  // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8** [[AFTER]], i64 -1
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[CUR]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
+  // CHECK-NEXT: br i1 [[EQ]],
+
+  // CHECK:      ret void
+}
+
+void test20(unsigned n) {
+  // CHECK: define void @test20
+  // CHECK:      [[N:%.*]] = alloca i32, align 4
+  // CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8*
+  // CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4
+
+  id x[n];
+
+  // Capture the VLA size.
+  // CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4
+  // CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64
+
+  // Save the stack pointer.
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave()
+  // CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]]
+
+  // Allocate the VLA.
+  // CHECK-NEXT: [[VLA:%.*]] = alloca i8*, i64 [[DIM]], align 16
+
+  // Zero-initialize.
+  // CHECK-NEXT: [[T0:%.*]] = bitcast i8** [[VLA]] to i8*
+  // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[DIM]], 8
+  // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 [[T1]], i32 8, i1 false)
+
+  // Destroy.
+  // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[VLA]], i64 [[DIM]]
+  // CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[VLA]], [[END]]
+  // CHECK-NEXT: br i1 [[EMPTY]]
+
+  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
+  // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8** [[AFTER]], i64 -1
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[CUR]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[VLA]]
+  // CHECK-NEXT: br i1 [[EQ]],
+
+  // CHECK:      [[T0:%.*]] = load i8** [[SAVED_STACK]]
+  // CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]])
+  // CHECK-NEXT: ret void
+}
+
+void test21(unsigned n) {
+  // CHECK: define void @test21
+  // CHECK:      [[N:%.*]] = alloca i32, align 4
+  // CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8*
+  // CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4
+
+  id x[2][n][3];
+
+  // Capture the VLA size.
+  // CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4
+  // CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64
+
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave()
+  // CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]]
+
+
+  // Allocate the VLA.
+  // CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]]
+  // CHECK-NEXT: [[VLA:%.*]] = alloca [3 x i8*], i64 [[T0]], align 16
+
+  // Zero-initialize.
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [3 x i8*]* [[VLA]] to i8*
+  // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 2, [[DIM]]
+  // CHECK-NEXT: [[T2:%.*]] = mul nuw i64 [[T1]], 24
+  // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 [[T2]], i32 8, i1 false)
+
+  // Destroy.
+  // CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]]
+  // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [3 x i8*]* [[VLA]], i32 0, i32 0
+  // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[T0]], 3
+  // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[BEGIN]], i64 [[T1]]
+  // CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[BEGIN]], [[END]]
+  // CHECK-NEXT: br i1 [[EMPTY]]
+
+  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
+  // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8** [[AFTER]], i64 -1
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[CUR]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
+  // CHECK-NEXT: br i1 [[EQ]],
+
+  // CHECK:      [[T0:%.*]] = load i8** [[SAVED_STACK]]
+  // CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]])
+  // CHECK-NEXT: ret void
+}
+
+void test22(_Bool cond) {
+  id test22_helper(void) __attribute__((ns_returns_retained));
+
+  // CHECK:      define void @test22(
+  // CHECK:      [[COND:%.*]] = alloca i8,
+  // CHECK-NEXT: [[X:%.*]] = alloca i8*,
+  // CHECK-NEXT: [[RELVAL:%.*]] = alloca i8*
+  // CHECK-NEXT: [[RELCOND:%.*]] = alloca i1
+  // CHECK-NEXT: zext
+  // CHECK-NEXT: store
+  // CHECK-NEXT: [[T0:%.*]] = load i8* [[COND]]
+  // CHECK-NEXT: [[T1:%.*]] = trunc i8 [[T0]] to i1
+  // CHECK-NEXT: store i1 false, i1* [[RELCOND]]
+  // CHECK-NEXT: br i1 [[T1]],
+  // CHECK:      br label
+  // CHECK:      [[CALL:%.*]] = call i8* @test22_helper()
+  // CHECK-NEXT: store i8* [[CALL]], i8** [[RELVAL]]
+  // CHECK-NEXT: store i1 true, i1* [[RELCOND]]
+  // CHECK-NEXT: br label
+  // CHECK:      [[T0:%.*]] = phi i8* [ null, {{%.*}} ], [ [[CALL]], {{%.*}} ]
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]]) nounwind
+  // CHECK-NEXT: store i8* [[T1]], i8** [[X]],
+  // CHECK-NEXT: [[REL:%.*]] = load i1* [[RELCOND]]
+  // CHECK-NEXT: br i1 [[REL]],
+  // CHECK:      [[T0:%.*]] = load i8** [[RELVAL]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
+  // CHECK-NEXT: br label
+  // CHECK:      [[T0:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
+  // CHECK-NEXT: ret void
+  id x = (cond ? 0 : test22_helper());
+}
+
+// rdar://problem/8922540
+//   Note that we no longer emit .release_ivars flags.
+// CHECK-GLOBALS: @"\01l_OBJC_CLASS_RO_$_Test23" = internal global [[RO_T:%.*]] { i32 134,
+@interface Test23 { id x; } @end
+@implementation Test23 @end
+
+// CHECK-GLOBALS: @"\01l_OBJC_CLASS_RO_$_Test24" = internal global [[RO_T:%.*]] { i32 130,
+@interface Test24 {} @end
+@implementation Test24 @end
+
+// rdar://problem/8941012
+@interface Test26 { id x[4]; } @end
+@implementation Test26 @end
+// CHECK:    define internal void @"\01-[Test26 .cxx_destruct]"(
+// CHECK:      [[SELF:%.*]] = load [[TEST26:%.*]]**
+// CHECK-NEXT: [[OFFSET:%.*]] = load i64* @"OBJC_IVAR_$_Test26.x"
+// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST26]]* [[SELF]] to i8*
+// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[OFFSET]]
+// CHECK-NEXT: [[X:%.*]] = bitcast i8* [[T1]] to [4 x i8*]*
+// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x i8*]* [[X]], i32 0, i32 0
+// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[BEGIN]], i64 4
+// CHECK-NEXT: br label
+// CHECK:      [[PAST:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
+// CHECK-NEXT: [[CUR]] = getelementptr inbounds i8** [[PAST]], i64 -1
+// CHECK-NEXT: call void @objc_storeStrong(i8** [[CUR]], i8* null)
+// CHECK-NEXT: [[ISDONE:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
+// CHECK-NEXT: br i1 [[ISDONE]],
+// CHECK:      ret void
+
+// Check that 'init' retains self.
+@interface Test27
+- (id) init;
+@end
+@implementation Test27
+- (id) init { return self; }
+// CHECK:    define internal i8* @"\01-[Test27 init]"
+// CHECK:      [[SELF:%.*]] = alloca [[TEST27:%.*]]*,
+// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
+// CHECK-NEXT: [[DEST:%.*]] = alloca i32
+// CHECK-NEXT: store [[TEST27]]* {{%.*}}, [[TEST27]]** [[SELF]]
+// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8*
+// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T1]])
+// CHECK-NEXT: store i32 {{[0-9]+}}, i32* [[DEST]]
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8*
+// CHECK-NEXT: call void @objc_release(i8* [[T1]])
+// CHECK-NEXT: ret i8* [[RET]]
+
+@end
+
+// rdar://problem/8087194
+@interface Test28
+@property (copy) id prop;
+@end
+@implementation Test28
+@synthesize prop;
+@end
+// CHECK:    define internal void @"\01-[Test28 .cxx_destruct]"
+// CHECK:      [[SELF:%.*]] = load [[TEST28:%.*]]**
+// CHECK-NEXT: [[OFFSET:%.*]] = load i64* @"OBJC_IVAR_$_Test28.prop"
+// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST28]]* [[SELF]] to i8*
+// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[OFFSET]]
+// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
+// CHECK-NEXT: call void @objc_storeStrong(i8** [[T2]], i8* null)
+// CHECK-NEXT: ret void
+
+@interface Test29_super
+- (id) initWithAllocator: (id) allocator;
+@end
+@interface Test29 : Test29_super
+- (id) init;
+- (id) initWithAllocator: (id) allocator;
+@end
+@implementation Test29
+static id _test29_allocator = 0;
+- (id) init {
+// CHECK:    define internal i8* @"\01-[Test29 init]"([[TEST29:%.*]]* {{%.*}},
+// CHECK:      [[SELF:%.*]] = alloca [[TEST29]]*, align 8
+// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8
+// CHECK-NEXT: [[CLEANUP:%.*]] = alloca i32
+// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]]
+// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
+
+// Evaluate arguments.  Note that the send argument is evaluated
+// before the zeroing of self.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]], align 8
+// CHECK-NEXT: [[T1:%.*]] = load i8** @_test29_allocator, align 8
+
+// Implicit null of 'self', i.e. direct transfer of ownership.
+// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]]
+
+// Actual message send.
+// CHECK-NEXT: [[T2:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+// CHECK-NEXT: [[T3:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
+// CHECK-NEXT: [[CALL:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T3]], i8* [[T2]], i8* [[T1]])
+
+// Implicit write of result back into 'self'.  This is not supposed to
+// be detectable because we're supposed to ban accesses to the old
+// self value past the delegate init call.
+// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
+// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]]
+
+// Return statement.
+// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[CALL]]
+// CHECK-NEXT: [[CALL:%.*]] = bitcast
+// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[CALL]]) nounwind
+// CHECK-NEXT: store i32 1, i32* [[CLEANUP]]
+
+// Cleanup.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
+// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
+
+// Return.
+// CHECK-NEXT: ret i8* [[RET]]
+  return [self initWithAllocator: _test29_allocator];
+}
+- (id) initWithAllocator: (id) allocator {
+// CHECK:    define internal i8* @"\01-[Test29 initWithAllocator:]"(
+// CHECK:      [[SELF:%.*]] = alloca [[TEST29]]*, align 8
+// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8
+// CHECK-NEXT: [[ALLOCATOR:%.*]] = alloca i8*, align 8
+// CHECK-NEXT: alloca
+// CHECK-NEXT: [[CLEANUP:%.*]] = alloca i32
+// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]]
+// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
+// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retain(i8* {{%.*}})
+// CHECK-NEXT: store i8* [[T0]], i8** [[ALLOCATOR]]
+
+// Evaluate arguments.  Note that the send argument is evaluated
+// before the zeroing of self.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = load i8** [[ALLOCATOR]], align 8
+
+// Implicit null of 'self', i.e. direct transfer of ownership.
+// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]]
+
+// Actual message send.
+// CHECK:      [[CALL:%.*]] = call {{.*}} @objc_msgSendSuper2
+
+// Implicit write of result back into 'self'.  This is not supposed to
+// be detectable because we're supposed to ban accesses to the old
+// self value past the delegate init call.
+// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
+// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]]
+
+// Assignment.
+// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
+// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]]) nounwind
+// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST29]]*
+// CHECK-NEXT: [[T4:%.*]] = load [[TEST29]]** [[SELF]], align
+// CHECK-NEXT: store [[TEST29]]* [[T3]], [[TEST29]]** [[SELF]], align
+// CHECK-NEXT: [[T5:%.*]] = bitcast [[TEST29]]* [[T4]] to i8*
+// CHECK-NEXT: call void @objc_release(i8* [[T5]])
+
+// Return statement.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
+// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T1]]) nounwind
+// CHECK-NEXT: store i32 1, i32* [[CLEANUP]]
+
+// Cleanup.
+// CHECK-NEXT: [[T0:%.*]] = load i8** [[ALLOCATOR]]
+// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
+
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
+// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
+
+// Return.
+// CHECK-NEXT: ret i8* [[RET]]
+  self = [super initWithAllocator: allocator];
+  return self;
+}
+@end
+
+typedef struct Test30_helper Test30_helper;
+@interface Test30
+- (id) init;
+- (Test30_helper*) initHelper;
+@end
+@implementation Test30 {
+char *helper;
+}
+- (id) init {
+// CHECK:    define internal i8* @"\01-[Test30 init]"([[TEST30:%.*]]* {{%.*}},
+// CHECK:      [[RET:%.*]] = alloca [[TEST30]]*
+// CHECK-NEXT: alloca i8*
+// CHECK-NEXT: alloca i32
+// CHECK-NEXT: store [[TEST30]]* {{%.*}}, [[TEST30]]** [[SELF]]
+// CHECK-NEXT: store
+
+// Call.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
+// CHECK-NEXT: [[CALL:%.*]] = call [[TEST30_HELPER:%.*]]* bitcast {{.*}} @objc_msgSend {{.*}}(i8* [[T2]], i8* [[T1]])
+
+// Assignment.
+// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST30_HELPER]]* [[CALL]] to i8*
+// CHECK-NEXT: [[T1:%.*]] = load [[TEST30]]** [[SELF]]
+// CHECK-NEXT: [[IVAR:%.*]] = load i64* @"OBJC_IVAR_$_Test30.helper"
+// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T1]] to i8*
+// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[IVAR]]
+// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
+// CHECK-NEXT#: [[T5:%.*]] = load i8** [[T4]]
+// CHECK-NEXT#: [[T6:%.*]] = call i8* @objc_retain(i8* [[T0]])
+// CHECK-NEXT#: call void @objc_release(i8* [[T5]])
+// CHECK-NEXT: store i8* [[T0]], i8** [[T4]]
+
+// Return.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
+// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T1]])
+// CHECK-NEXT: store i32 1
+
+// Cleanup.
+// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]** [[SELF]]
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
+// CHECK-NEXT: call void @objc_release(i8* [[T1]])
+
+// Epilogue.
+// CHECK-NEXT: ret i8* [[RET]]
+  self->helper = [self initHelper];
+  return self;
+}
+- (Test30_helper*) initHelper {
+// CHECK:    define internal [[TEST30_HELPER]]* @"\01-[Test30 initHelper]"(
+// CHECK:      alloca
+// CHECK-NEXT: alloca
+// CHECK-NEXT: store
+// CHECK-NEXT: store
+// CHECK-NEXT: ret [[TEST30_HELPER]]* null
+  return 0;
+}
+
+@end
+
+__attribute__((ns_returns_retained)) id test32(void) {
+// CHECK:    define i8* @test32()
+// CHECK:      [[CALL:%.*]] = call i8* @test32_helper()
+// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]])
+// CHECK-NEXT: ret i8* [[T0]]
+  extern id test32_helper(void);
+  return test32_helper();
+}
+
+@class Test33_a;
+@interface Test33
+- (void) give: (Test33_a **) x;
+- (void) take: (Test33_a **) x;
+- (void) giveStrong: (out __strong Test33_a **) x;
+- (void) takeStrong: (inout __strong Test33_a **) x;
+- (void) giveOut: (out Test33_a **) x;
+@end
+void test33(Test33 *ptr) {
+  Test33_a *a;
+  [ptr give: &a];
+  [ptr take: &a];
+  [ptr giveStrong: &a];
+  [ptr takeStrong: &a];
+  [ptr giveOut: &a];
+
+  // CHECK:    define void @test33([[TEST33:%.*]]*
+  // CHECK:      [[PTR:%.*]] = alloca [[TEST33]]*
+  // CHECK-NEXT: [[A:%.*]] = alloca [[A_T:%.*]]*
+  // CHECK-NEXT: [[TEMP0:%.*]] = alloca [[A_T]]*
+  // CHECK-NEXT: [[TEMP1:%.*]] = alloca [[A_T]]*
+  // CHECK-NEXT: [[TEMP2:%.*]] = alloca [[A_T]]*
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_retain
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: store
+  // CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[A]]
+
+  // CHECK-NEXT: load [[TEST33]]** [[PTR]]
+  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[A]]
+  // CHECK-NEXT: store [[A_T]]* [[T0]], [[A_T]]** [[TEMP0]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP0]])
+  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[TEMP0]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
+  // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]** [[A]]
+  // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
+  // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T5]])
+
+  // CHECK-NEXT: load [[TEST33]]** [[PTR]]
+  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[A]]
+  // CHECK-NEXT: store [[A_T]]* [[T0]], [[A_T]]** [[TEMP1]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP1]])
+  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[TEMP1]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
+  // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]** [[A]]
+  // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
+  // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T5]])
+
+  // CHECK-NEXT: load [[TEST33]]** [[PTR]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]])
+
+  // CHECK-NEXT: load [[TEST33]]** [[PTR]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]])
+
+  // 'out'
+  // CHECK-NEXT: load [[TEST33]]** [[PTR]]
+  // CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[TEMP2]]
+  // CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP2]])
+  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[TEMP2]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
+  // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]** [[A]]
+  // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
+  // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T5]])
+
+  // CHECK-NEXT: load
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_release
+  // CHECK-NEXT: load
+  // CHECK-NEXT: bitcast
+  // CHECK-NEXT: objc_release
+  // CHECK-NEXT: ret void
+}
+
+void test34(int cond) {
+  __strong id strong;
+  __weak id weak;
+  extern void test34_sink(id *);
+  test34_sink(cond ? &strong : 0);
+  test34_sink(cond ? &weak : 0);
+
+  // CHECK:    define void @test34(
+  // CHECK:      [[COND:%.*]] = alloca i32
+  // CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
+  // CHECK-NEXT: [[WEAK:%.*]] = alloca i8*
+  // CHECK-NEXT: [[TEMP1:%.*]] = alloca i8*
+  // CHECK-NEXT: [[TEMP2:%.*]] = alloca i8*
+  // CHECK-NEXT: store i32
+  // CHECK-NEXT: store i8* null, i8** [[STRONG]]
+  // CHECK-NEXT: call i8* @objc_initWeak(i8** [[WEAK]], i8* null)
+
+  // CHECK-NEXT: [[T0:%.*]] = load i32* [[COND]]
+  // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
+  // CHECK:      [[ARG:%.*]] = phi i8**
+  // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
+  // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP1]]
+  // CHECK-NEXT: br i1 [[T0]],
+  // CHECK:      [[T0:%.*]] = load i8** [[ARG]]
+  // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP1]]
+  // CHECK-NEXT: br label
+  // CHECK:      call void @test34_sink(i8** [[T1]])
+  // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
+  // CHECK-NEXT: br i1 [[T0]],
+  // CHECK:      [[T0:%.*]] = load i8** [[TEMP1]]
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
+  // CHECK-NEXT: [[T2:%.*]] = load i8** [[ARG]]
+  // CHECK-NEXT: store i8* [[T1]], i8** [[ARG]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T2]])
+  // CHECK-NEXT: br label
+
+  // CHECK:      [[T0:%.*]] = load i32* [[COND]]
+  // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
+  // CHECK:      [[ARG:%.*]] = phi i8**
+  // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
+  // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP2]]
+  // CHECK-NEXT: br i1 [[T0]],
+  // CHECK:      [[T0:%.*]] = call i8* @objc_loadWeak(i8** [[ARG]])
+  // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP2]]
+  // CHECK-NEXT: br label
+  // CHECK:      call void @test34_sink(i8** [[T1]])
+  // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
+  // CHECK-NEXT: br i1 [[T0]],
+  // CHECK:      [[T0:%.*]] = load i8** [[TEMP2]]
+  // CHECK-NEXT: call i8* @objc_storeWeak(i8** [[ARG]], i8* [[T0]])
+  // CHECK-NEXT: br label
+
+  // CHECK:      call void @objc_destroyWeak(i8** [[WEAK]])
+  // CHECK:      ret void
+}
+
+// CHECK: define void @test36
+void test36(id x) {
+  // CHECK: [[X:%.*]] = alloca i8*
+
+  // CHECK: call i8* @objc_retain
+  // CHECK: call i8* @objc_retain
+  // CHECK: call i8* @objc_retain
+  id array[3] = { @"A", x, @"y" };
+
+  // CHECK:      [[T0:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: store i8* null, i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  x = 0;
+
+  // CHECK: br label
+  // CHECK: call void @objc_release
+  // CHECK: br i1
+
+  // CHECK: call void @objc_release
+  // CHECK-NEXT: ret void
+}
+
+@class Test37;
+void test37(void) {
+  extern void test37_helper(id *);
+  Test37 *var;
+  test37_helper(&var);
+
+  // CHECK:    define void @test37()
+  // CHECK:      [[VAR:%.*]] = alloca [[TEST37:%.*]]*,
+  // CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
+  // CHECK-NEXT: store [[TEST37]]* null, [[TEST37]]** [[VAR]]
+
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST37]]** [[VAR]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST37]]* [[T0]] to i8*
+  // CHECK-NEXT: store i8* [[T1]], i8** [[TEMP]]
+  // CHECK-NEXT: call void @test37_helper(i8** [[TEMP]])
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[TEMP]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST37]]*
+  // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST37]]* [[T1]] to i8*
+  // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_retain(i8* [[T2]])
+  // CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to [[TEST37]]*
+  // CHECK-NEXT: [[T5:%.*]] = load [[TEST37]]** [[VAR]]
+  // CHECK-NEXT: store [[TEST37]]* [[T4]], [[TEST37]]** [[VAR]]
+  // CHECK-NEXT: [[T6:%.*]] = bitcast [[TEST37]]* [[T5]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T6]])
+
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST37]]** [[VAR]]
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST37]]* [[T0]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  // CHECK-NEXT: ret void
+}
+
+@interface Test43 @end
+@implementation Test43
+- (id) test __attribute__((ns_returns_retained)) {
+  extern id test43_produce(void);
+  return test43_produce();
+  // CHECK:      call i8* @test43_produce()
+  // CHECK-NEXT: call i8* @objc_retainAutoreleasedReturnValue(
+  // CHECK-NEXT: ret 
+}
+@end
+
+@interface Test45
+@property (retain) id x;
+@end
+@implementation Test45
+@synthesize x;
+@end
+// CHECK:    define internal i8* @"\01-[Test45 x]"(
+// CHECK:      [[CALL:%.*]] = call i8* @objc_getProperty(
+// CHECK-NEXT: ret i8* [[CALL]]
+
+// rdar://problem/9315552
+void test46(__weak id *wp, __weak volatile id *wvp) {
+  extern id test46_helper(void);
+
+  // TODO: this is sub-optimal, we should retain at the actual call site.
+
+  // CHECK:      [[T0:%.*]] = call i8* @test46_helper()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: [[T2:%.*]] = load i8*** {{%.*}}, align 8
+  // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]])
+  // CHECK-NEXT: [[T4:%.*]] = call i8* @objc_retain(i8* [[T3]])
+  // CHECK-NEXT: store i8* [[T4]], i8**
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  id x = *wp = test46_helper();
+
+  // CHECK:      [[T0:%.*]] = call i8* @test46_helper()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: [[T2:%.*]] = load i8*** {{%.*}}, align 8
+  // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]])
+  // CHECK-NEXT: [[T4:%.*]] = call i8* @objc_retain(i8* [[T3]])
+  // CHECK-NEXT: store i8* [[T4]], i8**
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  id y = *wvp = test46_helper();
+}
+
+// rdar://problem/9378887
+void test47(void) {
+  extern id test47_helper(void);
+  id x = x = test47_helper();
+
+  // CHECK:    define void @test47()
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: store i8* null, i8** [[X]]
+  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test47_helper()
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]])
+  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: store i8* [[T0]], i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T0]])
+  // CHECK-NEXT: [[T3:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: store i8* [[T2]], i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T3]])
+  // CHECK-NEXT: [[T4:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T4]])
+  // CHECK-NEXT: ret void
+}
+
+void test48(void) {
+  extern id test48_helper(void);
+  __weak id x = x = test48_helper();
+  // CHECK:    define void @test48()
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @objc_initWeak(i8** [[X]], i8* null)
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @test48_helper()
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[X]], i8* [[T2]])
+  // CHECK-NEXT: [[T4:%.*]] = call i8* @objc_storeWeak(i8** [[X]], i8* [[T3]])
+  // CHECK-NEXT: call void @objc_release(i8* [[T2]])
+  // CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]])
+  // CHECK-NEXT: ret void
+}
+
+void test49(void) {
+  extern id test49_helper(void);
+  __autoreleasing id x = x = test49_helper();
+  // CHECK:    define void @test49()
+  // CHECK:      [[X:%.*]] = alloca i8*
+  // CHECK-NEXT: store i8* null, i8** [[X]]
+  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test49_helper()
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]])
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_autorelease(i8* [[T0]])
+  // CHECK-NEXT: store i8* [[T2]], i8** [[X]]
+  // CHECK-NEXT: [[T3:%.*]] = call i8* @objc_retainAutorelease(i8* [[T1]])
+  // CHECK-NEXT: store i8* [[T3]], i8** [[X]]
+  // CHECK-NEXT: ret void
+}
+
+// rdar://9380136
+id x();
+void test50(id y) {
+  ({x();});
+// CHECK: [[T0:%.*]] = call i8* @objc_retain
+// CHECK: call void @objc_release
+}
+
+
+// rdar://9400762
+struct CGPoint {
+  float x;
+  float y;
+};
+typedef struct CGPoint CGPoint;
+
+@interface Foo
+@property (assign) CGPoint point;
+@end
+
+@implementation Foo
+@synthesize point;
+@end
+
+// rdar://problem/9400398
+id test52(void) {
+  id test52_helper(int) __attribute__((ns_returns_retained));
+  return ({ int x = 5; test52_helper(x); });
+
+// CHECK:    define i8* @test52()
+// CHECK:      [[X:%.*]] = alloca i32
+// CHECK-NEXT: store i32 5, i32* [[X]],
+// CHECK-NEXT: [[T0:%.*]] = load i32* [[X]],
+// CHECK-NEXT: [[T1:%.*]] = call i8* @test52_helper(i32 [[T0]])
+// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[T1]])
+// CHECK-NEXT: ret i8* [[T2]]
+}
+
+// rdar://problem/9400644
+void test53(void) {
+  id test53_helper(void);
+  id x = ({ id y = test53_helper(); y; });
+  (void) x;
+// CHECK:    define void @test53()
+// CHECK:      [[X:%.*]] = alloca i8*,
+// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
+// CHECK-NEXT: [[T0:%.*]] = call i8* @test53_helper()
+// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+// CHECK-NEXT: store i8* [[T1]], i8** [[Y]],
+// CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]],
+// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
+// CHECK-NEXT: [[T2:%.*]] = load i8** [[Y]]
+// CHECK-NEXT: call void @objc_release(i8* [[T2]])
+// CHECK-NEXT: store i8* [[T1]], i8** [[X]],
+// CHECK-NEXT: load i8** [[X]],
+// CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
+// CHECK-NEXT: call void @objc_release(i8* [[T0]])
+// CHECK-NEXT: ret void
+}
+
+// <rdar://problem/9758798>
+// CHECK: define void @test54(i32 %first, ...)
+void test54(int first, ...) {
+  __builtin_va_list arglist;
+  // CHECK: call void @llvm.va_start
+  __builtin_va_start(arglist, first);
+  // CHECK: call i8* @objc_retain
+  id obj = __builtin_va_arg(arglist, id);
+  // CHECK: call void @llvm.va_end
+  __builtin_va_end(arglist);
+  // CHECK: call void @objc_release
+  // CHECK: ret void
+}
+
+// PR10228
+@interface Test55Base @end
+@interface Test55 : Test55Base @end
+@implementation Test55 (Category)
+- (void) dealloc {}
+@end
+// CHECK:   define internal void @"\01-[Test55(Category) dealloc]"(
+// CHECK-NOT: ret
+// CHECK:     call void bitcast (i8* ({{%.*}}*, i8*, ...)* @objc_msgSendSuper2 to void ({{%.*}}*, i8*)*)(
+
+// rdar://problem/8024350
+@protocol Test56Protocol
++ (id) make __attribute__((ns_returns_retained));
+@end
+@interface Test56<Test56Protocol> @end
+@implementation Test56
+// CHECK: define internal i8* @"\01+[Test56 make]"(
++ (id) make {
+  extern id test56_helper(void);
+  // CHECK:      [[T0:%.*]] = call i8* @test56_helper()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: ret i8* [[T1]]
+  return test56_helper();
+}
+@end
+void test56_test(void) {
+  id x = [Test56 make];
+  // CHECK: define void @test56_test()
+  // CHECK:      [[X:%.*]] = alloca i8*, align 8
+  // CHECK:      [[T0:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(
+  // CHECK-NEXT: store i8* [[T0]], i8** [[X]]
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  // CHECK-NEXT: ret void
+}
+
+// rdar://problem/9784964
+@interface Test57
+@property (nonatomic, strong) id strong;
+@property (nonatomic, weak) id weak;
+@property (nonatomic, unsafe_unretained) id unsafe;
+@end
+@implementation Test57
+@synthesize strong, weak, unsafe;
+@end
+// CHECK: define internal i8* @"\01-[Test57 strong]"(
+// CHECK:      [[T0:%.*]] = load [[TEST57:%.*]]** {{%.*}}
+// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.strong"
+// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
+// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
+// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
+// CHECK-NEXT: [[T5:%.*]] = load i8** [[T4]]
+// CHECK-NEXT: ret i8* [[T5]]
+
+// CHECK: define internal i8* @"\01-[Test57 weak]"(
+// CHECK:      [[T0:%.*]] = load [[TEST57]]** {{%.*}}
+// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.weak"
+// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
+// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
+// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
+// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T4]])
+// CHECK-NEXT: [[T6:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[T5]])
+// CHECK-NEXT: ret i8* [[T6]]
+
+// CHECK: define internal i8* @"\01-[Test57 unsafe]"(
+// CHECK:      [[T0:%.*]] = load [[TEST57]]** {{%.*}}
+// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.unsafe"
+// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
+// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
+// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
+// CHECK-NEXT: [[T5:%.*]] = load i8** [[T4]]
+// CHECK-NEXT: ret i8* [[T5]]
+
+// rdar://problem/9821110
+@interface Test58
+- (char*) interior __attribute__((objc_returns_inner_pointer));
+// Should we allow this on properties?
+@end
+extern Test58 *test58_helper(void);
+
+// CHECK: define void @test58a()
+void test58a(void) {
+  // CHECK:      [[T0:%.*]] = call [[TEST58:%.*]]* @test58_helper()
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST58]]*
+  // CHECK-NEXT: store [[TEST58]]* [[T3]]
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutorelease(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST58]]*
+  // CHECK-NEXT: [[T4:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T5:%.*]] = bitcast [[TEST58]]* [[T3]] to i8*
+  // CHECK-NEXT: [[T6:%.*]] = call i8* bitcast
+  // CHECK-NEXT: store i8* [[T6]], i8**
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
+  // CHECK-NEXT: ret void
+  Test58 *ptr = test58_helper();
+  char *c = [(ptr) interior];
+}
+
+// CHECK: define void @test58b()
+void test58b(void) {
+  // CHECK:      [[T0:%.*]] = call [[TEST58:%.*]]* @test58_helper()
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
+  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST58]]*
+  // CHECK-NEXT: store [[TEST58]]* [[T3]]
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
+  // CHECK-NEXT: [[T1:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
+  // CHECK-NEXT: [[T3:%.*]] = call i8* bitcast
+  // CHECK-NEXT: store i8* [[T3]], i8**
+  // CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
+  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
+  // CHECK-NOT:  clang.imprecise_release
+  // CHECK-NEXT: ret void
+  __attribute__((objc_precise_lifetime)) Test58 *ptr = test58_helper();
+  char *c = [ptr interior];
+}
+
+// rdar://problem/9842343
+void test59(void) {
+  extern id test59_getlock(void);
+  extern void test59_body(void);
+  @synchronized (test59_getlock()) {
+    test59_body();
+  }
+
+  // CHECK:    define void @test59()
+  // CHECK:      [[T0:%.*]] = call i8* @test59_getlock()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: call void @objc_sync_enter(i8* [[T1]])
+  // CHECK-NEXT: call void @test59_body()
+  // CHECK-NEXT: call void @objc_sync_exit(i8* [[T1]])
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  // CHECK-NEXT: ret void
+}
+
+// Verify that we don't try to reclaim the result of performSelector.
+// rdar://problem/9887545
+@interface Test61
+- (id) performSelector: (SEL) selector;
+- (void) test61_void;
+- (id) test61_id;
+@end
+void test61(void) {
+  // CHECK:    define void @test61()
+  // CHECK:      [[Y:%.*]] = alloca i8*, align 8
+
+  extern id test61_make(void);
+
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: [[T2:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T3:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]])
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  [test61_make() performSelector: @selector(test61_void)];
+
+  // CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make()
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+  // CHECK-NEXT: [[T2:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T3:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
+  // CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]])
+  // CHECK-NEXT: [[T5:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T4]])
+  // CHECK-NEXT: store i8* [[T5]], i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
+  id y = [test61_make() performSelector: @selector(test61_id)];
+
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  // CHECK-NEXT: ret void
+}
+
+// rdar://problem/9891815
+void test62(void) {
+  // CHECK:    define void @test62()
+  // CHECK:      [[I:%.*]] = alloca i32, align 4
+  // CHECK-NEXT: [[CLEANUP_VALUE:%.*]] = alloca i8*
+  // CHECK-NEXT: [[CLEANUP_REQUIRED:%.*]] = alloca i1
+  extern id test62_make(void);
+  extern void test62_body(void);
+
+  // CHECK-NEXT: store i32 0, i32* [[I]], align 4
+  // CHECK-NEXT: br label
+
+  // CHECK:      [[T0:%.*]] = load i32* [[I]], align 4
+  // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 20
+  // CHECK-NEXT: br i1 [[T1]],
+
+  for (unsigned i = 0; i != 20; ++i) {
+    // CHECK:      [[T0:%.*]] = load i32* [[I]], align 4
+    // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
+    // CHECK-NEXT: store i1 false, i1* [[CLEANUP_REQUIRED]]
+    // CHECK-NEXT: br i1 [[T1]],
+    // CHECK:      [[T0:%.*]] = call i8* @test62_make()
+    // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+    // CHECK-NEXT: store i8* [[T1]], i8** [[CLEANUP_VALUE]]
+    // CHECK-NEXT: store i1 true, i1* [[CLEANUP_REQUIRED]]
+    // CHECK-NEXT: [[T2:%.*]] = icmp ne i8* [[T1]], null
+    // CHECK-NEXT: br label
+    // CHECK:      [[COND:%.*]] = phi i1 [ false, {{%.*}} ], [ [[T2]], {{%.*}} ]
+    // CHECK-NEXT: [[T0:%.*]] = load i1* [[CLEANUP_REQUIRED]]
+    // CHECK-NEXT: br i1 [[T0]],
+    // CHECK:      [[T0:%.*]] = load i8** [[CLEANUP_VALUE]]
+    // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+    // CHECK-NEXT: br label
+    // CHECK:      br i1 [[COND]]
+    // CHECK:      call void @test62_body()
+    // CHECK-NEXT: br label
+    // CHECK:      br label
+    if (i != 0 && test62_make() != 0)
+      test62_body();
+  }
+
+  // CHECK:      [[T0:%.*]] = load i32* [[I]], align 4
+  // CHECK-NEXT: [[T1:%.*]] = add i32 [[T0]], 1
+  // CHECK-NEXT: store i32 [[T1]], i32* [[I]]
+  // CHECK-NEXT: br label
+
+  // CHECK:      ret void
+}
+
+// rdar://9971982
+@class NSString;
+
+@interface Person  {
+  NSString *name;
+}
+@property NSString *address;
+@end
+
+@implementation Person
+@synthesize address;
+@end
+// CHECK: call i8* @objc_getProperty
+// CHECK: call void @objc_setProperty 
+
+// Verify that we successfully parse and preserve this attribute in
+// this position.
+@interface Test66
+- (void) consume: (id __attribute__((ns_consumed))) ptr;
+@end
+void test66(void) {
+  extern Test66 *test66_receiver(void);
+  extern id test66_arg(void);
+  [test66_receiver() consume: test66_arg()];
+}
+// CHECK:    define void @test66()
+// CHECK:      [[T0:%.*]] = call [[TEST66:%.*]]* @test66_receiver()
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST66]]* [[T0]] to i8*
+// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
+// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST66]]*
+// CHECK-NEXT: [[T4:%.*]] = call i8* @test66_arg()
+// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T4]])
+// CHECK-NEXT: [[T6:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES
+// CHECK-NEXT: [[T7:%.*]] = bitcast [[TEST66]]* [[T3]] to i8*
+// CHECK-NEXT: [[SIX:%.*]] = icmp eq i8* [[T7]], null
+// CHECK-NEXT: br i1 [[SIX]], label [[NULINIT:%.*]], label [[CALL:%.*]]
+// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*)*)(i8* [[T7]], i8* [[T6]], i8* [[T5]])
+// CHECK-NEXT: br label [[CONT:%.*]]
+// CHECK: call void @objc_release(i8* [[T5]]) nounwind
+// CHECK-NEXT: br label [[CONT:%.*]]
+// CHECK: [[T8:%.*]] = bitcast [[TEST66]]* [[T3]] to i8*
+// CHECK-NEXT: call void @objc_release(i8* [[T8]])
+// CHECK-NEXT: ret void
+
+// rdar://problem/9953540
+Class test67_helper(void);
+void test67(void) {
+  Class cl = test67_helper();
+}
+// CHECK:    define void @test67()
+// CHECK:      [[CL:%.*]] = alloca i8*, align 8
+// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper()
+// CHECK-NEXT: store i8* [[T0]], i8** [[CL]], align 8
+// CHECK-NEXT: ret void
+
+Class test68_helper(void);
+void test68(void) {
+  __strong Class cl = test67_helper();
+}
+// CHECK:    define void @test68()
+// CHECK:      [[CL:%.*]] = alloca i8*, align 8
+// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper()
+// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
+// CHECK-NEXT: store i8* [[T1]], i8** [[CL]], align 8
+// CHECK-NEXT: [[T2:%.*]] = load i8** [[CL]]
+// CHECK-NEXT: call void @objc_release(i8* [[T2]])
+// CHECK-NEXT: ret void
+
+// rdar://problem/10564852
+@interface Test69 @end
+@implementation Test69
+- (id) foo { return self; }
+@end
+// CHECK: define internal i8* @"\01-[Test69 foo]"(
+// CHECK:      [[SELF:%.*]] = alloca [[TEST69:%.*]]*, align 8
+// CHECK:      [[T0:%.*]] = load [[TEST69]]** [[SELF]], align 8
+// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST69]]* [[T0]] to i8*
+// CHECK-NEXT: ret i8* [[T1]]
+
+// rdar://problem/10907547
+void test70(id i) {
+  // CHECK: define void @test70
+  // CHECK: store i8* null, i8**
+  // CHECK: store i8* null, i8**
+  // CHECK: [[ID:%.*]] = call i8* @objc_retain(i8*
+  // CHECK: store i8* [[ID]], i8**
+  id x[3] = {
+    [2] = i
+  };
+}