nil-receiver-undefined-larger-than-voidptr-ret.m revision c4d2c9074be6eb2091086eddd6c8f052f3b245c8 
1// RUN: %clang_cc1 -triple i386-apple-darwin8 -analyze -analyzer-checker=core,core.experimental -analyzer-constraints=basic -analyzer-store=basic %s  2>&1 | FileCheck -check-prefix=darwin8 %s
2// RUN: %clang_cc1 -triple i386-apple-darwin8 -analyze -analyzer-checker=core,core.experimental -analyzer-constraints=basic -analyzer-store=region %s 2>&1 | FileCheck -check-prefix=darwin8 %s
3// RUN: %clang_cc1 -triple i386-apple-darwin9 -analyze -analyzer-checker=core,core.experimental -analyzer-constraints=basic -analyzer-store=basic %s 2>&1 | FileCheck -check-prefix=darwin9 %s
4// RUN: %clang_cc1 -triple i386-apple-darwin9 -analyze -analyzer-checker=core,core.experimental -analyzer-constraints=basic -analyzer-store=region %s 2>&1 | FileCheck -check-prefix=darwin9 %s
5// RUN: %clang_cc1 -triple thumbv6-apple-darwin4.0.0-iphoneos -analyze -analyzer-checker=core,core.experimental -analyzer-constraints=basic -analyzer-store=basic %s 2>&1 | FileCheck -check-prefix=darwin9 %s
6// RUN: %clang_cc1 -triple thumbv6-apple-darwin4.0.0-iphoneos -analyze -analyzer-checker=core,core.experimental -analyzer-constraints=basic -analyzer-store=region %s 2>&1 | FileCheck -check-prefix=darwin9 %s
7
8@interface MyClass {}
9- (void *)voidPtrM;
10- (int)intM;
11- (long long)longlongM;
12- (unsigned long long)unsignedLongLongM;
13- (double)doubleM;
14- (long double)longDoubleM;
15- (void)voidM;
16@end
17@implementation MyClass
18- (void *)voidPtrM { return (void *)0; }
19- (int)intM { return 0; }
20- (long long)longlongM { return 0; }
21- (unsigned long long)unsignedLongLongM { return 0; }
22- (double)doubleM { return 0.0; }
23- (long double)longDoubleM { return 0.0; }
24- (void)voidM {}
25@end
26
27void createFoo() {
28  MyClass *obj = 0;  
29  
30  void *v = [obj voidPtrM]; // no-warning
31  int i = [obj intM]; // no-warning
32}
33
34void createFoo2() {
35  MyClass *obj = 0;  
36  
37  long double ld = [obj longDoubleM];
38}
39
40void createFoo3() {
41  MyClass *obj;
42  obj = 0;  
43  
44  long long ll = [obj longlongM];
45}
46
47void createFoo4() {
48  MyClass *obj = 0;  
49  
50  double d = [obj doubleM];
51}
52
53void createFoo5() {
54  MyClass *obj = @"";  
55  
56  double d = [obj doubleM]; // no-warning
57}
58
59void createFoo6() {
60  MyClass *obj;
61  obj = 0;  
62  
63  unsigned long long ull = [obj unsignedLongLongM];
64}
65
66void handleNilPruneLoop(MyClass *obj) {
67  if (!!obj)
68    return;
69  
70  // Test if [obj intM] evaluates to 0, thus pruning the entire loop.
71  for (int i = 0; i < [obj intM]; i++) {
72    long long j = [obj longlongM];
73  }
74  
75  long long j = [obj longlongM];
76}
77
78int handleVoidInComma() {
79  MyClass *obj = 0;
80  return [obj voidM], 0;
81}
82
83int marker(void) { // control reaches end of non-void function
84}
85
86
87// CHECK-darwin8: warning: The receiver of message 'longDoubleM' is nil and returns a value of type 'long double' that will be garbage
88// CHECK-darwin8: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
89// CHECK-darwin8: warning: The receiver of message 'doubleM' is nil and returns a value of type 'double' that will be garbage
90// CHECK-darwin8: warning: The receiver of message 'unsignedLongLongM' is nil and returns a value of type 'unsigned long long' that will be garbage
91// CHECK-darwin8: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
92// CHECK-darwin9-NOT: warning: The receiver of message 'longDoubleM' is nil and returns a value of type 'long double' that will be garbage
93// CHECK-darwin9-NOT: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
94// CHECK-darwin9-NOT: warning: The receiver of message 'doubleM' is nil and returns a value of type 'double' that will be garbage
95// CHECK-darwin9-NOT: warning: The receiver of message 'unsignedLongLongM' is nil and returns a value of type 'unsigned long long' that will be garbage
96// CHECK-darwin9-NOT: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
97// CHECK-darwin9: 1 warning generated
98
99