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      1 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-nonfragile-abi -fobjc-runtime-has-weak -triple x86_64-apple-darwin -O0 -emit-llvm %s -o %t-64.s
      2 // RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s
      3 // rdar://9503326
      4 // rdar://9606600
      5 
      6 extern void use(id);
      7 extern void use_block(void (^)(void));
      8 @class NSArray;
      9 
     10 void test0(NSArray *array) {
     11   // 'x' should be initialized without a retain.
     12   // We should actually do a non-constant capture, and that
     13   // capture should require a retain.
     14   for (id x in array) {
     15     use_block(^{ use(x); });
     16   }
     17 }
     18 
     19 // CHECK-LP64:    define void @test0(
     20 // CHECK-LP64:      alloca [[ARRAY_T:%.*]]*,
     21 // CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*,
     22 // CHECK-LP64-NEXT: [[STATE:%.*]] = alloca [[STATE_T:%.*]],
     23 // CHECK-LP64-NEXT: alloca [16 x i8*], align 8
     24 // CHECK-LP64-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
     25 
     26 // CHECK-LP64:      [[T0:%.*]] = getelementptr inbounds [[STATE_T]]* [[STATE]], i32 0, i32 1
     27 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8*** [[T0]]
     28 // CHECK-LP64-NEXT: [[T2:%.*]] = getelementptr i8** [[T1]], i64
     29 // CHECK-LP64-NEXT: [[T3:%.*]] = load i8** [[T2]]
     30 // CHECK-LP64-NEXT: store i8* [[T3]], i8** [[X]]
     31 
     32 // CHECK-LP64:      [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
     33 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8** [[X]]
     34 // CHECK-LP64-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
     35 // CHECK-LP64-NEXT: store i8* [[T2]], i8** [[T0]]
     36 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] 
     37 // CHECK-LP64: call void @use_block(
     38 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8** [[T0]]
     39 // CHECK-LP64-NEXT: call void @objc_release(i8* [[T1]])
     40 
     41 // CHECK-LP64:    define internal void @__test0_block_invoke
     42 // CHECK-LP64:      [[BLOCK:%.*]] = bitcast i8* {{%.*}} to [[BLOCK_T]]*
     43 // CHECK-LP64-NEXT: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
     44 // CHECK-LP64-NEXT: [[T2:%.*]] = load i8** [[T0]], align 8 
     45 // CHECK-LP64-NEXT: call void @use(i8* [[T2]])
     46 
     47 void test1(NSArray *array) {
     48   for (__weak id x in array) {
     49     use_block(^{ use(x); });
     50   }
     51 }
     52 
     53 // CHECK-LP64:    define void @test1(
     54 // CHECK-LP64:      alloca [[ARRAY_T:%.*]]*,
     55 // CHECK-LP64-NEXT: [[X:%.*]] = alloca i8*,
     56 // CHECK-LP64-NEXT: [[STATE:%.*]] = alloca [[STATE_T:%.*]],
     57 // CHECK-LP64-NEXT: alloca [16 x i8*], align 8
     58 // CHECK-LP64-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
     59 
     60 // CHECK-LP64:      [[T0:%.*]] = getelementptr inbounds [[STATE_T]]* [[STATE]], i32 0, i32 1
     61 // CHECK-LP64-NEXT: [[T1:%.*]] = load i8*** [[T0]]
     62 // CHECK-LP64-NEXT: [[T2:%.*]] = getelementptr i8** [[T1]], i64
     63 // CHECK-LP64-NEXT: [[T3:%.*]] = load i8** [[T2]]
     64 // CHECK-LP64-NEXT: call i8* @objc_initWeak(i8** [[X]], i8* [[T3]])
     65 
     66 // CHECK-LP64:      [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
     67 // CHECK-LP64-NEXT: [[T1:%.*]] = call i8* @objc_loadWeak(i8** [[X]])
     68 // CHECK-LP64-NEXT: call i8* @objc_initWeak(i8** [[T0]], i8* [[T1]])
     69 // CHECK-LP64-NEXT: [[T1:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to
     70 // CHECK-LP64: call void @use_block
     71 // CHECK-LP64-NEXT: call void @objc_destroyWeak(i8** [[T0]])
     72 // CHECK-LP64-NEXT: call void @objc_destroyWeak(i8** [[X]])
     73