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      1 // RUN: %clang_cc1 -triple=powerpc-apple-darwin8 -faltivec -fsyntax-only -verify %s
      2 
      3 __vector char vv_c;
      4 __vector signed char vv_sc;
      5 __vector unsigned char vv_uc;
      6 __vector short vv_s;
      7 __vector signed  short vv_ss;
      8 __vector unsigned  short vv_us;
      9 __vector short int vv_si;
     10 __vector signed short int vv_ssi;
     11 __vector unsigned short int vv_usi;
     12 __vector int vv_i;
     13 __vector signed int vv_sint;
     14 __vector unsigned int vv_ui;
     15 __vector float vv_f;
     16 __vector bool char vv_bc;
     17 __vector bool short vv_bs;
     18 __vector bool int vv_bi;
     19 __vector __pixel vv_p;
     20 __vector pixel vv__p;
     21 __vector int vf__r();
     22 void vf__a(__vector int a);
     23 void vf__a2(int b, __vector int a);
     24 
     25 vector char v_c;
     26 vector signed char v_sc;
     27 vector unsigned char v_uc;
     28 vector short v_s;
     29 vector signed  short v_ss;
     30 vector unsigned  short v_us;
     31 vector short int v_si;
     32 vector signed short int v_ssi;
     33 vector unsigned short int v_usi;
     34 vector int v_i;
     35 vector signed int v_sint;
     36 vector unsigned int v_ui;
     37 vector float v_f;
     38 vector bool char v_bc;
     39 vector bool short v_bs;
     40 vector bool int v_bi;
     41 vector __pixel v_p;
     42 vector pixel v__p;
     43 vector int f__r();
     44 void f_a(vector int a);
     45 void f_a2(int b, vector int a);
     46 
     47 vector int v = (vector int)(-1);
     48 
     49 // These should have warnings.
     50 __vector long vv_l;                 // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     51 __vector signed long vv_sl;         // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     52 __vector unsigned long vv_ul;       // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     53 __vector long int vv_li;            // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     54 __vector signed long int vv_sli;    // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     55 __vector unsigned long int vv_uli;  // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     56 vector long v_l;                    // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     57 vector signed long v_sl;            // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     58 vector unsigned long v_ul;          // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     59 vector long int v_li;               // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     60 vector signed long int v_sli;       // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     61 vector unsigned long int v_uli;     // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     62 __vector long double  vv_ld;        // expected-warning {{Use of 'long' with '__vector' is deprecated}} expected-error {{cannot use 'double' with '__vector'}}
     63 vector long double  v_ld;           // expected-warning {{Use of 'long' with '__vector' is deprecated}} expected-error {{cannot use 'double' with '__vector'}}
     64 
     65 // These should have errors.
     66 __vector double vv_d1;               // expected-error {{cannot use 'double' with '__vector'}}
     67 vector double v_d2;                  // expected-error {{cannot use 'double' with '__vector'}}
     68 __vector long double  vv_ld3;        // expected-warning {{Use of 'long' with '__vector' is deprecated}} expected-error {{cannot use 'double' with '__vector'}}
     69 vector long double  v_ld4;           // expected-warning {{Use of 'long' with '__vector' is deprecated}} expected-error {{cannot use 'double' with '__vector'}}
     70 vector bool v_b;                     // expected-error {{error: C++ requires a type specifier for all declarations}}
     71 vector bool float v_bf;              // expected-error {{cannot use 'float' with '__vector bool'}}
     72 vector bool double v_bd;             // expected-error {{cannot use 'double' with '__vector bool'}}
     73 vector bool pixel v_bp;              // expected-error {{cannot use '__pixel' with '__vector bool'}}
     74 vector bool signed char v_bsc;       // expected-error {{cannot use 'signed' with '__vector bool'}}
     75 vector bool unsigned int v_bsc2;      // expected-error {{cannot use 'unsigned' with '__vector bool'}}
     76 vector bool long v_bl;               // expected-error {{cannot use 'long' with '__vector bool'}}
     77 vector bool long long v_bll;         // expected-error {{cannot use 'long long' with '__vector bool'}}
     78 
     79 void f() {
     80   __vector unsigned int v = {0,0,0,0};
     81   __vector int v__cast = (__vector int)v;
     82   __vector int v_cast = (vector int)v;
     83   __vector char vb_cast = (vector char)v;
     84 
     85   // Check some casting between gcc and altivec vectors.
     86   #define gccvector __attribute__((vector_size(16)))
     87   gccvector unsigned int gccv = {0,0,0,0};
     88   gccvector unsigned int gccv1 = gccv;
     89   gccvector int gccv2 = (gccvector int)gccv;
     90   gccvector unsigned int gccv3 = v;
     91   __vector unsigned int av = gccv;
     92   __vector int avi = (__vector int)gccv;
     93   gccvector unsigned int gv = v;
     94   gccvector int gvi = (gccvector int)v;
     95   __attribute__((vector_size(8))) unsigned int gv8;
     96   gv8 = gccv;     // expected-error {{assigning to '__attribute__((__vector_size__(2 * sizeof(unsigned int)))) unsigned int' from incompatible type '__attribute__((__vector_size__(4 * sizeof(unsigned int)))) unsigned int'}}
     97   av = gv8;       // expected-error {{assigning to '__vector unsigned int' from incompatible type '__attribute__((__vector_size__(2 * sizeof(unsigned int)))) unsigned int'}}
     98 
     99   v = gccv;
    100   __vector unsigned int tv = gccv;
    101   gccv = v;
    102   gccvector unsigned int tgv = v;
    103 }
    104 
    105 // Now for the C++ version:
    106 
    107 class vc__v {
    108   __vector int v;
    109   __vector int f__r();
    110   void f__a(__vector int a);
    111   void f__a2(int b, __vector int a);
    112 };
    113 
    114 class c_v {
    115   vector int v;
    116   vector int f__r();
    117   void f__a(vector int a);
    118   void f__a2(int b, vector int a);
    119 };
    120 
    121 
    122 // bug 6895 - Vectorl literal casting confusion.
    123 vector char v1 = (vector char)((vector int)(1, 2, 3, 4));
    124 vector char v2 = (vector char)((vector float)(1.0f, 2.0f, 3.0f, 4.0f));
    125 vector char v3 = (vector char)((vector int)('a', 'b', 'c', 'd'));
    126 vector int v4 = (vector int)(1, 2, 3, 4);
    127 vector float v5 = (vector float)(1.0f, 2.0f, 3.0f, 4.0f);
    128 vector char v6 = (vector char)((vector int)(1+2, -2, (int)(2.0 * 3), -(5-3)));
    129 
    130 // bug 7553 - Problem with '==' and vectors
    131 void func() {
    132   bool res_b;
    133   res_b = (vv_sc == vv_sc);
    134   res_b = (vv_uc != vv_uc);
    135   res_b = (vv_s > vv_s);
    136   res_b = (vv_us >= vv_us);
    137   res_b = (vv_i < vv_i);
    138   res_b = (vv_ui <= vv_ui);
    139   res_b = (vv_f <= vv_f);
    140 }
    141 
    142 // vecreturn attribute test
    143 struct Vector
    144 {
    145 	__vector float xyzw;
    146 } __attribute__((vecreturn));
    147 
    148 Vector Add(Vector lhs, Vector rhs)
    149 {
    150 	Vector result;
    151 	result.xyzw = vec_add(lhs.xyzw, rhs.xyzw);
    152 	return result; // This will (eventually) be returned in a register
    153 }
    154 
    155 // vecreturn attribute test - should error because of virtual function.
    156 class VectorClassNonPod
    157 {
    158 	__vector float xyzw;
    159 public:
    160   VectorClassNonPod() {}
    161   virtual ~VectorClassNonPod() {}
    162 } __attribute__((vecreturn));     // expected-error {{the vecreturn attribute can only be used on a POD (plain old data) class or structure (i.e. no virtual functions)}}
    163 
    164 // vecreturn attribute test - should error because of virtual function.
    165 class VectorClassMultipleMembers
    166 {
    167 public:
    168 	__vector float xyzw;
    169 	__vector float abcd;
    170 } __attribute__((vecreturn));     // expected-error {{the vecreturn attribute can only be used on a class or structure with one member, which must be a vector}}
    171