xref: /llvm-project/clang/test/AST/ast-dump-constant-expr.cpp (revision 97af17c5cae64f5fd5e89806e8cf20f50fec30ec)
1 // Test without serialization:
2 // RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown -ast-dump -ast-dump-filter Test %s \
3 // RUN: | FileCheck --strict-whitespace --match-full-lines %s
4 //
5 // Test with serialization:
6 // RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown -emit-pch -o %t %s
7 // RUN: %clang_cc1 -x c++ -std=c++20 -triple x86_64-unknown-unknown -include-pch %t \
8 // RUN: -ast-dump-all -ast-dump-filter Test /dev/null \
9 // RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
10 // RUN: | FileCheck --strict-whitespace --match-full-lines %s
11 
12 // FIXME: ASTRecordReader::readAPValue and ASTRecordWriter::AddAPValue
13 // just give up on some APValue kinds! This *really* should be fixed.
14 
15 struct array_holder {
16   int i[2];
17 };
18 
19 struct S {
20   int i = 42;
21 };
22 
23 union U {
24   int i = 42;
25   float f;
26 };
27 
28 struct SU {
29   S s[2];
30   U u[3];
31 };
32 
test_Int()33 consteval int test_Int() { return 42; }
test_Float()34 consteval float test_Float() { return 1.0f; }
test_ComplexInt()35 consteval _Complex int test_ComplexInt() { return 1+2i; }
test_ComplexFloat()36 consteval _Complex float test_ComplexFloat() { return 1.2f+3.4fi; }
test_Int128()37 consteval __int128 test_Int128() { return (__int128)0xFFFFFFFFFFFFFFFF + (__int128)1; }
38 // FIXME: consteval array_holder test_Array() { return array_holder(); }
39 // FIXME: consteval S test_Struct() { return S(); }
40 // FIXME: consteval U test_Union() { return U(); }
41 // FIXME: consteval SU test_SU() { return SU(); }
42 
43 struct Test {
testTest44   void test() {
45     (void)test_Int();
46     (void)test_Float();
47     (void)test_ComplexInt();
48     (void)test_ComplexFloat();
49     (void)test_Int128();
50     //(void) test_Array();
51     //(void) test_Struct();
52     //(void) test_Union();
53     //(void) test_SU();
54   }
55 
consteval_methodTest56   consteval void consteval_method() {}
57 };
58 
59 // CHECK:Dumping Test:
60 // CHECK-NEXT:CXXRecordDecl {{.*}} <{{.*}}ast-dump-constant-expr.cpp:43:1, line:57:1> line:43:8 struct Test definition
61 // CHECK:|-CXXMethodDecl {{.*}} <line:44:3, line:54:3> line:44:8 test 'void ()' implicit-inline
62 // CHECK-NEXT:| `-CompoundStmt {{.*}} <col:15, line:54:3>
63 // CHECK-NEXT:|   |-CStyleCastExpr {{.*}} <line:45:5, col:20> 'void' <ToVoid>
64 // CHECK-NEXT:|   | `-ConstantExpr {{.*}} <col:11, col:20> 'int'
65 // CHECK-NEXT:|   |   |-value: Int 42
66 // CHECK-NEXT:|   |   `-CallExpr {{.*}} <col:11, col:20> 'int'
67 // CHECK-NEXT:|   |     `-ImplicitCastExpr {{.*}} <col:11> 'int (*)()' <FunctionToPointerDecay>
68 // CHECK-NEXT:|   |       `-DeclRefExpr {{.*}} <col:11> 'int ()' lvalue Function {{.*}} 'test_Int' 'int ()'
69 // CHECK-NEXT:|   |-CStyleCastExpr {{.*}} <line:46:5, col:22> 'void' <ToVoid>
70 // CHECK-NEXT:|   | `-ConstantExpr {{.*}} <col:11, col:22> 'float'
71 // CHECK-NEXT:|   |   |-value: Float 1.000000e+00
72 // CHECK-NEXT:|   |   `-CallExpr {{.*}} <col:11, col:22> 'float'
73 // CHECK-NEXT:|   |     `-ImplicitCastExpr {{.*}} <col:11> 'float (*)()' <FunctionToPointerDecay>
74 // CHECK-NEXT:|   |       `-DeclRefExpr {{.*}} <col:11> 'float ()' lvalue Function {{.*}} 'test_Float' 'float ()'
75 // CHECK-NEXT:|   |-CStyleCastExpr {{.*}} <line:47:5, col:27> 'void' <ToVoid>
76 // CHECK-NEXT:|   | `-ConstantExpr {{.*}} <col:11, col:27> '_Complex int'
77 // CHECK-NEXT:|   |   |-value: ComplexInt 1 + 2i
78 // CHECK-NEXT:|   |   `-CallExpr {{.*}} <col:11, col:27> '_Complex int'
79 // CHECK-NEXT:|   |     `-ImplicitCastExpr {{.*}} <col:11> '_Complex int (*)()' <FunctionToPointerDecay>
80 // CHECK-NEXT:|   |       `-DeclRefExpr {{.*}} <col:11> '_Complex int ()' lvalue Function {{.*}} 'test_ComplexInt' '_Complex int ()'
81 // CHECK-NEXT:|   |-CStyleCastExpr {{.*}} <line:48:5, col:29> 'void' <ToVoid>
82 // CHECK-NEXT:|   | `-ConstantExpr {{.*}} <col:11, col:29> '_Complex float'
83 // CHECK-NEXT:|   |   |-value: ComplexFloat 1.200000e+00 + 3.400000e+00i
84 // CHECK-NEXT:|   |   `-CallExpr {{.*}} <col:11, col:29> '_Complex float'
85 // CHECK-NEXT:|   |     `-ImplicitCastExpr {{.*}} <col:11> '_Complex float (*)()' <FunctionToPointerDecay>
86 // CHECK-NEXT:|   |       `-DeclRefExpr {{.*}} <col:11> '_Complex float ()' lvalue Function {{.*}} 'test_ComplexFloat' '_Complex float ()'
87 // CHECK-NEXT:|   `-CStyleCastExpr {{.*}} <line:49:5, col:23> 'void' <ToVoid>
88 // CHECK-NEXT:|     `-ConstantExpr {{.*}} <col:11, col:23> '__int128'
89 // CHECK-NEXT:|       |-value: Int 18446744073709551616
90 // CHECK-NEXT:|       `-CallExpr {{.*}} <col:11, col:23> '__int128'
91 // CHECK-NEXT:|         `-ImplicitCastExpr {{.*}} <col:11> '__int128 (*)()' <FunctionToPointerDecay>
92 // CHECK-NEXT:|           `-DeclRefExpr {{.*}} <col:11> '__int128 ()' lvalue Function {{.*}} 'test_Int128' '__int128 ()'
93 // CHECK-NEXT:`-CXXMethodDecl {{.*}} <line:56:3, col:38> col:18 consteval consteval_method 'void ()' implicit-inline
94