1 // Test without serialization:
2 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -ast-dump %s | FileCheck %s
3 //
4 // Test with serialization:
5 // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-pch -o %t %s
6 // RUN: %clang_cc1 -x c++ -triple x86_64-linux-gnu -include-pch %t -ast-dump-all /dev/null \
7 // RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
8 // RUN: | FileCheck %s
9 
10 // We are checking that implicit casts don't get marked with 'part_of_explicit_cast',
11 // while in explicit casts, the implicitly-inserted implicit casts are marked with 'part_of_explicit_cast'
12 
13 unsigned char implicitcast_0(unsigned int x) {
14   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_0 'unsigned char (unsigned int)'{{$}}
15   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
16   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue>{{$}}
17   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
18   return x;
19 }
20 
21 signed char implicitcast_1(unsigned int x) {
22   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_1 'signed char (unsigned int)'{{$}}
23   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
24   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue>{{$}}
25   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
26   return x;
27 }
28 
29 unsigned char implicitcast_2(signed int x) {
30   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_2 'unsigned char (int)'{{$}}
31   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
32   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue>{{$}}
33   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
34   return x;
35 }
36 
37 signed char implicitcast_3(signed int x) {
38   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_3 'signed char (int)'{{$}}
39   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
40   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue>{{$}}
41   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
42   return x;
43 }
44 
45 //----------------------------------------------------------------------------//
46 
47 unsigned char cstylecast_0(unsigned int x) {
48   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_0 'unsigned char (unsigned int)'{{$}}
49   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <NoOp>{{$}}
50   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
51   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
52   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
53   return (unsigned char)x;
54 }
55 
56 signed char cstylecast_1(unsigned int x) {
57   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_1 'signed char (unsigned int)'{{$}}
58   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'signed char' <NoOp>{{$}}
59   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
60   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
61   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
62   return (signed char)x;
63 }
64 
65 unsigned char cstylecast_2(signed int x) {
66   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_2 'unsigned char (int)'{{$}}
67   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <NoOp>{{$}}
68   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
69   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
70   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
71   return (unsigned char)x;
72 }
73 
74 signed char cstylecast_3(signed int x) {
75   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_3 'signed char (int)'{{$}}
76   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'signed char' <NoOp>{{$}}
77   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
78   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
79   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
80   return (signed char)x;
81 }
82 
83 //----------------------------------------------------------------------------//
84 
85 unsigned char cxxstaticcast_0(unsigned int x) {
86   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_0 'unsigned char (unsigned int)'{{$}}
87   // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'unsigned char' static_cast<unsigned char> <NoOp>{{$}}
88   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
89   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
90   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
91   return static_cast<unsigned char>(x);
92 }
93 
94 signed char cxxstaticcast_1(unsigned int x) {
95   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_1 'signed char (unsigned int)'{{$}}
96   // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'signed char' static_cast<signed char> <NoOp>{{$}}
97   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
98   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
99   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
100   return static_cast<signed char>(x);
101 }
102 
103 unsigned char cxxstaticcast_2(signed int x) {
104   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_2 'unsigned char (int)'{{$}}
105   // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'unsigned char' static_cast<unsigned char> <NoOp>{{$}}
106   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
107   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
108   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
109   return static_cast<unsigned char>(x);
110 }
111 
112 signed char cxxstaticcast_3(signed int x) {
113   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxstaticcast_3 'signed char (int)'{{$}}
114   // CHECK: CXXStaticCastExpr {{.*}} <col:{{.*}}> 'signed char' static_cast<signed char> <NoOp>{{$}}
115   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast> part_of_explicit_cast{{$}}
116   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
117   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
118   return static_cast<signed char>(x);
119 }
120 
121 //----------------------------------------------------------------------------//
122 
123 using UnsignedChar = unsigned char;
124 using SignedChar = signed char;
125 using UnsignedInt = unsigned int;
126 using SignedInt = signed int;
127 
128 UnsignedChar cxxfunctionalcast_0(UnsignedInt x) {
129   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_0 'UnsignedChar (UnsignedInt)'{{$}}
130   // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' functional cast to UnsignedChar <NoOp>{{$}}
131   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
132   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
133   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' lvalue ParmVar {{.*}} 'x' 'UnsignedInt':'unsigned int'{{$}}
134   return UnsignedChar(x);
135 }
136 
137 SignedChar cxxfunctionalcast_1(UnsignedInt x) {
138   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_1 'SignedChar (UnsignedInt)'{{$}}
139   // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' functional cast to SignedChar <NoOp>{{$}}
140   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' <IntegralCast> part_of_explicit_cast{{$}}
141   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
142   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'UnsignedInt':'unsigned int' lvalue ParmVar {{.*}} 'x' 'UnsignedInt':'unsigned int'{{$}}
143   return SignedChar(x);
144 }
145 
146 UnsignedChar cxxfunctionalcast_2(SignedInt x) {
147   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_2 'UnsignedChar (SignedInt)'{{$}}
148   // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' functional cast to UnsignedChar <NoOp>{{$}}
149   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'UnsignedChar':'unsigned char' <IntegralCast> part_of_explicit_cast{{$}}
150   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' <LValueToRValue> part_of_explicit_cast{{$}}
151   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' lvalue ParmVar {{.*}} 'x' 'SignedInt':'int'{{$}}
152   return UnsignedChar(x);
153 }
154 
155 SignedChar cxxfunctionalcast_3(SignedInt x) {
156   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cxxfunctionalcast_3 'SignedChar (SignedInt)'{{$}}
157   // CHECK: CXXFunctionalCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' functional cast to SignedChar <NoOp>{{$}}
158   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedChar':'signed char' <IntegralCast> part_of_explicit_cast{{$}}
159   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' <LValueToRValue> part_of_explicit_cast{{$}}
160   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'SignedInt':'int' lvalue ParmVar {{.*}} 'x' 'SignedInt':'int'{{$}}
161   return SignedChar(x);
162 }
163