1 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -fexceptions -fcxx-exceptions %s -std=c++14 |
2 | void __attribute__((target("default"))) invalid_features(void); |
3 | //expected-error@+2 {{function declaration is missing 'target' attribute in a multiversioned function}} |
4 | //expected-warning@+1 {{unsupported 'hello_world' in the 'target' attribute string; 'target' attribute ignored}} |
5 | void __attribute__((target("hello_world"))) invalid_features(void); |
6 | //expected-error@+1 {{function multiversioning doesn't support feature 'no-sse4.2'}} |
7 | void __attribute__((target("no-sse4.2"))) invalid_features(void); |
8 | |
9 | void __attribute__((target("sse4.2"))) no_default(void); |
10 | void __attribute__((target("arch=sandybridge"))) no_default(void); |
11 | |
12 | void use1(void){ |
13 | // expected-error@+1 {{no matching function for call to 'no_default'}} |
14 | no_default(); |
15 | } |
16 | constexpr int __attribute__((target("sse4.2"))) foo(void) { return 0; } |
17 | constexpr int __attribute__((target("arch=sandybridge"))) foo(void); |
18 | //expected-error@+1 {{multiversioned function declaration has a different constexpr specification}} |
19 | int __attribute__((target("arch=ivybridge"))) foo(void) {return 1;} |
20 | constexpr int __attribute__((target("default"))) foo(void) { return 2; } |
21 | |
22 | int __attribute__((target("sse4.2"))) foo2(void) { return 0; } |
23 | //expected-error@+1 {{multiversioned function declaration has a different constexpr specification}} |
24 | constexpr int __attribute__((target("arch=sandybridge"))) foo2(void); |
25 | int __attribute__((target("arch=ivybridge"))) foo2(void) {return 1;} |
26 | int __attribute__((target("default"))) foo2(void) { return 2; } |
27 | |
28 | static int __attribute__((target("sse4.2"))) bar(void) { return 0; } |
29 | static int __attribute__((target("arch=sandybridge"))) bar(void); |
30 | //expected-error@+1 {{multiversioned function declaration has a different storage class}} |
31 | int __attribute__((target("arch=ivybridge"))) bar(void) {return 1;} |
32 | static int __attribute__((target("default"))) bar(void) { return 2; } |
33 | |
34 | int __attribute__((target("sse4.2"))) bar2(void) { return 0; } |
35 | //expected-error@+1 {{multiversioned function declaration has a different storage class}} |
36 | static int __attribute__((target("arch=sandybridge"))) bar2(void); |
37 | int __attribute__((target("arch=ivybridge"))) bar2(void) {return 1;} |
38 | int __attribute__((target("default"))) bar2(void) { return 2; } |
39 | |
40 | |
41 | inline int __attribute__((target("sse4.2"))) baz(void) { return 0; } |
42 | inline int __attribute__((target("arch=sandybridge"))) baz(void); |
43 | //expected-error@+1 {{multiversioned function declaration has a different inline specification}} |
44 | int __attribute__((target("arch=ivybridge"))) baz(void) {return 1;} |
45 | inline int __attribute__((target("default"))) baz(void) { return 2; } |
46 | |
47 | int __attribute__((target("sse4.2"))) baz2(void) { return 0; } |
48 | //expected-error@+1 {{multiversioned function declaration has a different inline specification}} |
49 | inline int __attribute__((target("arch=sandybridge"))) baz2(void); |
50 | int __attribute__((target("arch=ivybridge"))) baz2(void) {return 1;} |
51 | int __attribute__((target("default"))) baz2(void) { return 2; } |
52 | |
53 | float __attribute__((target("sse4.2"))) bock(void) { return 0; } |
54 | //expected-error@+1 {{multiversioned function declaration has a different return type}} |
55 | int __attribute__((target("arch=sandybridge"))) bock(void); |
56 | //expected-error@+1 {{multiversioned function declaration has a different return type}} |
57 | int __attribute__((target("arch=ivybridge"))) bock(void) {return 1;} |
58 | //expected-error@+1 {{multiversioned function declaration has a different return type}} |
59 | int __attribute__((target("default"))) bock(void) { return 2; } |
60 | |
61 | int __attribute__((target("sse4.2"))) bock2(void) { return 0; } |
62 | //expected-error@+1 {{multiversioned function declaration has a different return type}} |
63 | float __attribute__((target("arch=sandybridge"))) bock2(void); |
64 | int __attribute__((target("arch=ivybridge"))) bock2(void) {return 1;} |
65 | int __attribute__((target("default"))) bock2(void) { return 2; } |
66 | |
67 | auto __attribute__((target("sse4.2"))) bock3(void) -> int { return 0; } |
68 | //expected-error@+1 {{multiversioned function declaration has a different return type}} |
69 | auto __attribute__((target("arch=sandybridge"))) bock3(void) -> short { return (short)0;} |
70 | |
71 | int __attribute__((target("sse4.2"))) bock4(void) noexcept(false) { return 0; } |
72 | //expected-error@+2 {{exception specification in declaration does not match previous declaration}} |
73 | //expected-note@-2 {{previous declaration is here}} |
74 | int __attribute__((target("arch=sandybridge"))) bock4(void) noexcept(true) { return 1;} |
75 | |
76 | // FIXME: Add support for templates and virtual functions! |
77 | template<typename T> |
78 | int __attribute__((target("sse4.2"))) foo(T) { return 0; } |
79 | // expected-error@+2 {{multiversioned functions do not yet support function templates}} |
80 | template<typename T> |
81 | int __attribute__((target("arch=sandybridge"))) foo(T); |
82 | |
83 | // expected-error@+2 {{multiversioned functions do not yet support function templates}} |
84 | template<typename T> |
85 | int __attribute__((target("default"))) foo(T) { return 2; } |
86 | |
87 | struct S { |
88 | template<typename T> |
89 | int __attribute__((target("sse4.2"))) foo(T) { return 0; } |
90 | // expected-error@+2 {{multiversioned functions do not yet support function templates}} |
91 | template<typename T> |
92 | int __attribute__((target("arch=sandybridge"))) foo(T); |
93 | |
94 | // expected-error@+2 {{multiversioned functions do not yet support function templates}} |
95 | template<typename T> |
96 | int __attribute__((target("default"))) foo(T) { return 2; } |
97 | |
98 | // expected-error@+1 {{multiversioned functions do not yet support virtual functions}} |
99 | virtual void __attribute__((target("default"))) virt(); |
100 | }; |
101 | |
102 | extern "C" { |
103 | int __attribute__((target("sse4.2"))) diff_mangle(void) { return 0; } |
104 | } |
105 | //expected-error@+1 {{multiversioned function declaration has a different linkage}} |
106 | int __attribute__((target("arch=sandybridge"))) diff_mangle(void) { return 0; } |
107 | |
108 | // expected-error@+1 {{multiversioned functions do not yet support deduced return types}} |
109 | auto __attribute__((target("default"))) deduced_return(void) { return 0; } |
110 | // expected-error@-1 {{cannot initialize return object of type 'auto' with an rvalue of type 'int'}} |
111 | |
112 | auto __attribute__((target("default"))) trailing_return(void)-> int { return 0; } |
113 | |
114 | __attribute__((target("default"))) void DiffDecl(); |
115 | namespace N { |
116 | using ::DiffDecl; |
117 | // expected-error@+3 {{declaration conflicts with target of using declaration already in scope}} |
118 | // expected-note@-4 {{target of using declaration}} |
119 | // expected-note@-3 {{using declaration}} |
120 | __attribute__((target("arch=sandybridge"))) void DiffDecl(); |
121 | } // namespace N |
122 | |
123 | struct SpecialFuncs { |
124 | // expected-error@+1 {{multiversioned functions do not yet support constructors}} |
125 | __attribute__((target("default"))) SpecialFuncs(); |
126 | // expected-error@+1 {{multiversioned functions do not yet support destructors}} |
127 | __attribute__((target("default"))) ~SpecialFuncs(); |
128 | |
129 | // expected-error@+1 {{multiversioned functions do not yet support defaulted functions}} |
130 | SpecialFuncs& __attribute__((target("default"))) operator=(const SpecialFuncs&) = default; |
131 | // expected-error@+1 {{multiversioned functions do not yet support deleted functions}} |
132 | SpecialFuncs& __attribute__((target("default"))) operator=(SpecialFuncs&&) = delete; |
133 | }; |
134 | |
135 | class Secret { |
136 | int i = 0; |
137 | __attribute__((target("default"))) |
138 | friend int SecretAccessor(Secret &s); |
139 | __attribute__((target("arch=sandybridge"))) |
140 | friend int SecretAccessor(Secret &s); |
141 | }; |
142 | |
143 | __attribute__((target("default"))) |
144 | int SecretAccessor(Secret &s) { |
145 | return s.i; |
146 | } |
147 | |
148 | __attribute__((target("arch=sandybridge"))) |
149 | int SecretAccessor(Secret &s) { |
150 | return s.i + 2; |
151 | } |
152 | |
153 | __attribute__((target("arch=ivybridge"))) |
154 | int SecretAccessor(Secret &s) { |
155 | //expected-error@+2{{'i' is a private member of 'Secret'}} |
156 | //expected-note@-20{{implicitly declared private here}} |
157 | return s.i + 3; |
158 | } |
159 | |
160 | constexpr int __attribute__((target("sse4.2"))) constexpr_foo(void) { |
161 | return 0; |
162 | } |
163 | constexpr int __attribute__((target("arch=sandybridge"))) constexpr_foo(void); |
164 | constexpr int __attribute__((target("arch=ivybridge"))) constexpr_foo(void) { |
165 | return 1; |
166 | } |
167 | constexpr int __attribute__((target("default"))) constexpr_foo(void) { |
168 | return 2; |
169 | } |
170 | |
171 | void constexpr_test() { |
172 | static_assert(foo() == 2, "Should call 'default' in a constexpr context"); |
173 | } |
174 | |
175 | struct BadOutOfLine { |
176 | int __attribute__((target("sse4.2"))) foo(int); |
177 | int __attribute__((target("default"))) foo(int); |
178 | }; |
179 | |
180 | int __attribute__((target("sse4.2"))) BadOutOfLine::foo(int) { return 0; } |
181 | int __attribute__((target("default"))) BadOutOfLine::foo(int) { return 1; } |
182 | // expected-error@+3 {{out-of-line definition of 'foo' does not match any declaration in 'BadOutOfLine'}} |
183 | // expected-note@-3 {{member declaration nearly matches}} |
184 | // expected-note@-3 {{member declaration nearly matches}} |
185 | int __attribute__((target("arch=atom"))) BadOutOfLine::foo(int) { return 1; } |
186 | |