1 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core -fblocks -analyzer-opt-analyze-nested-blocks -verify -x objective-c++ %s
2 // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,debug.DumpCFG -fblocks -analyzer-opt-analyze-nested-blocks -analyzer-config cfg-rich-constructors=false %s > %t 2>&1
3 // RUN: FileCheck --input-file=%t -check-prefixes=CHECK,WARNINGS %s
4 // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,debug.DumpCFG -fblocks -analyzer-opt-analyze-nested-blocks -analyzer-config cfg-rich-constructors=true %s > %t 2>&1
5 // RUN: FileCheck --input-file=%t -check-prefixes=CHECK,ANALYZER %s
7 // This file tests how we construct two different flavors of the Clang CFG -
8 // the CFG used by the Sema analysis-based warnings and the CFG used by the
9 // static analyzer. The difference in the behavior is checked via FileCheck
10 // prefixes (WARNINGS and ANALYZER respectively). When introducing new analyzer
11 // flags, no new run lines should be added - just these flags would go to the
12 // respective line depending on where is it turned on and where is it turned
13 // off. Feel free to add tests that test only one of the CFG flavors if you're
14 // not sure how the other flavor is supposed to work in your case.
16 // expected-no-diagnostics
18 void testBlockWithoutCopyExpression(int i) {
19 // Captures i, with no copy expression.
25 // CHECK-LABEL:void testBlockWithoutCopyExpression(int i)
26 // CHECK-NEXT: [B2 (ENTRY)]
27 // CHECK-NEXT: Succs (1): B1
30 // CHECK-NEXT: 1: ^{ }
31 // CHECK-NEXT: 2: (void)([B1.1]) (CStyleCastExpr, ToVoid, void)
32 // CHECK-NEXT: Preds (1): B2
33 // CHECK-NEXT: Succs (1): B0
36 // CHECK-NEXT: Preds (1): B1
38 struct StructWithCopyConstructor {
39 StructWithCopyConstructor(int i);
40 StructWithCopyConstructor(const StructWithCopyConstructor &s);
42 void testBlockWithCopyExpression(StructWithCopyConstructor s) {
43 // Captures s, with a copy expression calling the copy constructor for StructWithCopyConstructor.
49 // CHECK-LABEL:void testBlockWithCopyExpression(StructWithCopyConstructor s)
50 // CHECK-NEXT: [B2 (ENTRY)]
51 // CHECK-NEXT: Succs (1): B1
55 // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NoOp, const struct StructWithCopyConstructor)
56 // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, const struct StructWithCopyConstructor)
57 // CHECK-NEXT: 4: ^{ }
58 // CHECK-NEXT: 5: (void)([B1.4]) (CStyleCastExpr, ToVoid, void)
59 // CHECK-NEXT: Preds (1): B2
60 // CHECK-NEXT: Succs (1): B0
63 // CHECK-NEXT: Preds (1): B1
65 void testBlockWithCaptureByReference() {
66 __block StructWithCopyConstructor s(5);
67 // Captures s by reference, so no copy expression.
73 // CHECK-LABEL:void testBlockWithCaptureByReference()
74 // CHECK-NEXT: [B2 (ENTRY)]
75 // CHECK-NEXT: Succs (1): B1
79 // WARNINGS-NEXT: 2: [B1.1] (CXXConstructExpr, struct StructWithCopyConstructor)
80 // ANALYZER-NEXT: 2: [B1.1] (CXXConstructExpr, [B1.3], struct StructWithCopyConstructor)
81 // CHECK-NEXT: 3: StructWithCopyConstructor s(5) __attribute__((blocks("byref")));
82 // CHECK-NEXT: 4: ^{ }
83 // CHECK-NEXT: 5: (void)([B1.4]) (CStyleCastExpr, ToVoid, void)
84 // CHECK-NEXT: Preds (1): B2
85 // CHECK-NEXT: Succs (1): B0
88 // CHECK-NEXT: Preds (1): B1