1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -fenable-matrix %s
2 
3 template <typename T> // expected-note{{declared here}}
4 void matrix_template_1() {
5   using matrix1_t = float __attribute__((matrix_type(T, T))); // expected-error{{'T' does not refer to a value}}
6 }
7 
8 template <class C> // expected-note{{declared here}}
9 void matrix_template_2() {
10   using matrix1_t = float __attribute__((matrix_type(C, C))); // expected-error{{'C' does not refer to a value}}
11 }
12 
13 template <unsigned Rows, unsigned Cols>
14 void matrix_template_3() {
15   using matrix1_t = float __attribute__((matrix_type(Rows, Cols))); // expected-error{{zero matrix size}}
16 }
17 
18 void instantiate_template_3() {
19   matrix_template_3<1, 10>();
20   matrix_template_3<0, 10>(); // expected-note{{in instantiation of function template specialization 'matrix_template_3<0U, 10U>' requested here}}
21 }
22 
23 template <int Rows, unsigned Cols>
24 void matrix_template_4() {
25   using matrix1_t = float __attribute__((matrix_type(Rows, Cols))); // expected-error{{matrix row size too large}}
26 }
27 
28 void instantiate_template_4() {
29   matrix_template_4<2, 10>();
30   matrix_template_4<-3, 10>(); // expected-note{{in instantiation of function template specialization 'matrix_template_4<-3, 10U>' requested here}}
31 }
32 
33 template <class T, unsigned long R, unsigned long C>
34 using matrix = T __attribute__((matrix_type(R, C)));
35 
36 template <class T, unsigned long R>
37 void use_matrix(matrix<T, R, 10> &m) {}
38 // expected-note@-1 {{candidate function [with T = float, R = 10]}}
39 
40 template <class T, unsigned long C>
41 void use_matrix(matrix<T, 10, C> &m) {}
42 // expected-note@-1 {{candidate function [with T = float, C = 10]}}
43 
44 void test_ambigous_deduction1() {
45   matrix<float, 10, 10> m;
46   use_matrix(m);
47   // expected-error@-1 {{call to 'use_matrix' is ambiguous}}
48 }
49 
50 template <class T, long R>
51 void type_conflict(matrix<T, R, 10> &m, T x) {}
52 // expected-note@-1 {{candidate template ignored: deduced conflicting types for parameter 'T' ('float' vs. 'char *')}}
53 
54 void test_type_conflict(char *p) {
55   matrix<float, 10, 10> m;
56   type_conflict(m, p);
57   // expected-error@-1 {{no matching function for call to 'type_conflict'}}
58 }
59 
60 template <unsigned long R, unsigned long C>
61 matrix<float, R + 1, C + 2> use_matrix_2(matrix<int, R, C> &m) {}
62 // expected-note@-1 {{candidate function template not viable: requires single argument 'm', but 2 arguments were provided}}
63 // expected-note@-2 {{candidate function template not viable: requires single argument 'm', but 2 arguments were provided}}
64 
65 template <unsigned long R, unsigned long C>
66 void use_matrix_2(matrix<int, R + 2, C / 2> &m1, matrix<float, R, C> &m2) {}
67 // expected-note@-1 {{candidate function [with R = 3, C = 11] not viable: no known conversion from 'matrix<int, 5, 6>' (aka 'int __attribute__((matrix_type(5, 6)))') to 'matrix<int, 3UL + 2, 11UL / 2> &' (aka 'int  __attribute__((matrix_type(5, 5)))&') for 1st argument}}
68 // expected-note@-2 {{candidate template ignored: deduced type 'matrix<float, 3UL, 4UL>' of 2nd parameter does not match adjusted type 'matrix<int, 3, 4>' of argument [with R = 3, C = 4]}}
69 
70 template <typename T, unsigned long R, unsigned long C>
71 void use_matrix_2(matrix<T, R + C, C> &m1, matrix<T, R, C - R> &m2) {}
72 // expected-note@-1 {{candidate template ignored: deduced conflicting types for parameter 'T' ('int' vs. 'float')}}
73 // expected-note@-2 {{candidate template ignored: deduced type 'matrix<[...], 3UL + 4UL, 4UL>' of 1st parameter does not match adjusted type 'matrix<[...], 3, 4>' of argument [with T = int, R = 3, C = 4]}}
74 
75 template <typename T, unsigned long R>
76 void use_matrix_3(matrix<T, R - 2, R> &m) {}
77 // expected-note@-1 {{candidate template ignored: deduced type 'matrix<[...], 5UL - 2, 5UL>' of 1st parameter does not match adjusted type 'matrix<[...], 5, 5>' of argument [with T = unsigned int, R = 5]}}
78 
79 void test_use_matrix_2() {
80   matrix<int, 5, 6> m1;
81   matrix<float, 5, 8> r1 = use_matrix_2(m1);
82   // expected-error@-1 {{cannot initialize a variable of type 'matrix<[...], 5, 8>' with an rvalue of type 'matrix<[...], 5UL + 1, 6UL + 2>'}}
83 
84   matrix<int, 4, 5> m2;
85   matrix<float, 5, 8> r2 = use_matrix_2(m2);
86   // expected-error@-1 {{cannot initialize a variable of type 'matrix<[...], 5, 8>' with an rvalue of type 'matrix<[...], 4UL + 1, 5UL + 2>'}}
87 
88   matrix<float, 3, 11> m3;
89   use_matrix_2(m1, m3);
90   // expected-error@-1 {{no matching function for call to 'use_matrix_2'}}
91 
92   matrix<int, 3, 4> m4;
93   use_matrix_2(m4, m4);
94   // expected-error@-1 {{no matching function for call to 'use_matrix_2'}}
95 
96   matrix<unsigned, 5, 5> m5;
97   use_matrix_3(m5);
98   // expected-error@-1 {{no matching function for call to 'use_matrix_3'}}
99 }
100 template <typename T, unsigned R, unsigned C>
101 struct make1 {
102   typedef T __attribute__((matrix_type(R, C))) type;
103 };
104 
105 void test_make1() {
106   make1<int, 5, 4>::type x;
107 }
108 
109 template <typename T, unsigned R, unsigned C>
110 struct make2 {
111   typedef T __attribute__((matrix_type(R, C))) type; // expected-error{{zero matrix size}}
112 };
113 
114 int test_make2() {
115   make2<int, 0, 1> x; // expected-note{{in instantiation of}}
116 }
117 
118 template <typename T, unsigned R, unsigned C>
119 struct make3 {
120   typedef T __attribute__((matrix_type(R, C))) type; // expected-error{{invalid matrix element type 's'}}
121 };
122 
123 struct s {};
124 
125 int test_make3() {
126   make3<s, 3, 3> x; // expected-note{{in instantiation of}}
127 }
128 
129 template <typename T, T R, unsigned C>
130 struct make4 {
131   typedef T __attribute__((matrix_type(R, C))) type;
132 };
133 
134 int test_make4() {
135   make4<int, 4, 5>::type x;
136 }
137 
138 typedef int *int_ptr;
139 template <unsigned R, unsigned C>
140 struct make5 {
141   typedef int_ptr __attribute__((matrix_type(R, C))) type; // expected-error{{invalid matrix element type}}
142 };
143 
144 template <int R, unsigned C>
145 struct make6 {
146   typedef int __attribute__((matrix_type(R, C))) type;
147 };
148 
149 int test_make6() {
150   make6<4, 4>::type x;
151 
152   make6<2, 2>::type y;
153 }
154 
155 namespace Deduction {
156 template <typename T>
157 struct X0;
158 
159 template <typename T, unsigned N>
160 struct X0<T __attribute__((matrix_type(N, 3)))> {
161   static const unsigned value = 0;
162 };
163 
164 template <typename T>
165 struct X0<T __attribute__((matrix_type(4, 3)))> {
166   static const unsigned value = 1;
167 };
168 
169 template <unsigned N>
170 struct X0<float __attribute__((matrix_type(N, 3)))> {
171   static const unsigned value = 2;
172 };
173 
174 template <>
175 struct X0<float __attribute__((matrix_type(4, 3)))> {
176   static const unsigned value = 3;
177 };
178 
179 typedef int __attribute__((matrix_type(2, 3))) int2;
180 typedef int __attribute__((matrix_type(4, 3))) int4;
181 typedef float __attribute__((matrix_type(2, 3))) float2;
182 typedef float __attribute__((matrix_type(4, 3))) float4;
183 
184 int array0[X0<int2>::value == 0 ? 1 : -1];
185 int array1[X0<int4>::value == 1 ? 1 : -1];
186 int array2[X0<float2>::value == 2 ? 1 : -1];
187 int array3[X0<float4>::value == 3 ? 1 : -1];
188 } // namespace Deduction
189