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      1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fobjc-dispatch-method=mixed -fobjc-runtime-has-weak -fexceptions -o - %s | FileCheck %s
      2 
      3 @interface NSObject
      4 - (id) new;
      5 @end
      6 
      7 @interface MyObject : NSObject
      8 - (char)isEqual:(id) __attribute__((ns_consumed)) object;
      9 - (_Complex float) asComplexWithArg: (id) __attribute__((ns_consumed)) object;
     10 @end
     11 
     12 MyObject *x;
     13 
     14 // rdar://10444476
     15 void test0(void) {
     16   id obj = [NSObject new];
     17   [x isEqual : obj];
     18 }
     19 // CHECK:     define void @test0()
     20 // CHECK:       [[FIVE:%.*]] = call i8* @objc_retain
     21 // CHECK-NEXT:  [[SIX:%.*]] = bitcast
     22 // CHECK-NEXT:  [[SEVEN:%.*]]  = icmp eq i8* [[SIX]], null
     23 // CHECK-NEXT:  br i1 [[SEVEN]], label [[NULLINIT:%.*]], label [[CALL_LABEL:%.*]]
     24 // CHECK:       [[FN:%.*]] = load i8** getelementptr inbounds
     25 // CHECK-NEXT:  [[EIGHT:%.*]] = bitcast i8* [[FN]]
     26 // CHECK-NEXT:  [[CALL:%.*]] = call signext i8 [[EIGHT]]
     27 // CHECK-NEXT:  br label [[CONT:%.*]]
     28 // CHECK:       call void @objc_release(i8* [[FIVE]]) [[NUW:#[0-9]+]]
     29 // CHECK-NEXT:  br label [[CONT]]
     30 // CHECK:       phi i8 [ [[CALL]], {{%.*}} ], [ 0, {{%.*}} ]
     31 
     32 // Ensure that we build PHIs correctly in the presence of cleanups.
     33 // rdar://12046763
     34 void test1(void) {
     35   id obj = [NSObject new];
     36   __weak id weakObj = obj;
     37   _Complex float result = [x asComplexWithArg: obj];
     38 }
     39 // CHECK:    define void @test1()
     40 // CHECK:      [[OBJ:%.*]] = alloca i8*, align 8
     41 // CHECK-NEXT: [[WEAKOBJ:%.*]] = alloca i8*, align 8
     42 // CHECK-NEXT: [[RESULT:%.*]] = alloca { float, float }, align 4
     43 //   Various initializations.
     44 // CHECK:      [[T0:%.*]] = call i8* bitcast (
     45 // CHECK-NEXT: store i8* [[T0]], i8** [[OBJ]]
     46 // CHECK-NEXT: [[T0:%.*]] = load i8** [[OBJ]]
     47 // CHECK-NEXT: call i8* @objc_initWeak(i8** [[WEAKOBJ]], i8* [[T0]]) [[NUW]]
     48 //   Okay, start the message-send.
     49 // CHECK-NEXT: [[T0:%.*]] = load [[MYOBJECT:%.*]]** @x
     50 // CHECK-NEXT: [[ARG:%.*]] = load i8** [[OBJ]]
     51 // CHECK-NEXT: [[ARG_RETAINED:%.*]] = call i8* @objc_retain(i8* [[ARG]])
     52 // CHECK-NEXT: load i8** @
     53 // CHECK-NEXT: [[SELF:%.*]] = bitcast [[MYOBJECT]]* [[T0]] to i8*
     54 //   Null check.
     55 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8* [[SELF]], null
     56 // CHECK-NEXT: br i1 [[T0]], label [[FORNULL:%.*]], label [[FORCALL:%.*]]
     57 //   Invoke and produce the return values.
     58 // CHECK:      [[CALL:%.*]] = invoke <2 x float> bitcast
     59 // CHECK-NEXT:   to label [[INVOKE_CONT:%.*]] unwind label {{%.*}}
     60 // CHECK:      [[T0:%.*]] = bitcast { float, float }* [[COERCE:%.*]] to <2 x float>*
     61 // CHECK-NEXT: store <2 x float> [[CALL]], <2 x float>* [[T0]],
     62 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds { float, float }* [[COERCE]], i32 0, i32 0
     63 // CHECK-NEXT: [[REALCALL:%.*]] = load float* [[T0]]
     64 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds { float, float }* [[COERCE]], i32 0, i32 1
     65 // CHECK-NEXT: [[IMAGCALL:%.*]] = load float* [[T0]]
     66 // CHECK-NEXT: br label [[CONT:%.*]]{{$}}
     67 //   Null path.
     68 // CHECK:      call void @objc_release(i8* [[ARG_RETAINED]]) [[NUW]]
     69 // CHECK-NEXT: br label [[CONT]]
     70 //   Join point.
     71 // CHECK:      [[REAL:%.*]] = phi float [ [[REALCALL]], [[INVOKE_CONT]] ], [ 0.000000e+00, [[FORNULL]] ]
     72 // CHECK-NEXT: [[IMAG:%.*]] = phi float [ [[IMAGCALL]], [[INVOKE_CONT]] ], [ 0.000000e+00, [[FORNULL]] ]
     73 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds { float, float }* [[RESULT]], i32 0, i32 0
     74 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds { float, float }* [[RESULT]], i32 0, i32 1
     75 // CHECK-NEXT: store float [[REAL]], float* [[T0]]
     76 // CHECK-NEXT: store float [[IMAG]], float* [[T1]]
     77 //   Epilogue.
     78 // CHECK-NEXT: call void @objc_destroyWeak(i8** [[WEAKOBJ]]) [[NUW]]
     79 // CHECK-NEXT: call void @objc_storeStrong(i8** [[OBJ]], i8* null) [[NUW]]
     80 // CHECK-NEXT: ret void
     81 //   Cleanup.
     82 // CHECK:      landingpad
     83 // CHECK:      call void @objc_destroyWeak(i8** [[WEAKOBJ]]) [[NUW]]
     84 
     85 // CHECK: attributes [[NUW]] = { nounwind }
     86