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      1 // RUN: %clang_cc1 -triple=powerpc-apple-darwin8 -faltivec -fsyntax-only -verify -std=c++11 %s
      2 // RUN: %clang_cc1 -triple=powerpc64-unknown-linux-gnu -faltivec -fsyntax-only -verify -std=c++11 %s
      3 // RUN: %clang_cc1 -triple=powerpc64le-unknown-linux-gnu -faltivec -fsyntax-only -verify -std=c++11 %s
      4 #include <altivec.h>
      5 
      6 __vector char vv_c;
      7 __vector signed char vv_sc;
      8 __vector unsigned char vv_uc;
      9 __vector short vv_s;
     10 __vector signed  short vv_ss;
     11 __vector unsigned  short vv_us;
     12 __vector short int vv_si;
     13 __vector signed short int vv_ssi;
     14 __vector unsigned short int vv_usi;
     15 __vector int vv_i;
     16 __vector signed int vv_sint;
     17 __vector unsigned int vv_ui;
     18 __vector float vv_f;
     19 __vector bool char vv_bc;
     20 __vector bool short vv_bs;
     21 __vector bool int vv_bi;
     22 __vector __bool char vv___bc;
     23 __vector __bool short vv___bs;
     24 __vector __bool int vv___bi;
     25 __vector __pixel vv_p;
     26 __vector pixel vv__p;
     27 __vector int vf__r();
     28 void vf__a(__vector int a);
     29 void vf__a2(int b, __vector int a);
     30 
     31 vector char v_c;
     32 vector signed char v_sc;
     33 vector unsigned char v_uc;
     34 vector short v_s;
     35 vector signed  short v_ss;
     36 vector unsigned  short v_us;
     37 vector short int v_si;
     38 vector signed short int v_ssi;
     39 vector unsigned short int v_usi;
     40 vector int v_i;
     41 vector signed int v_sint;
     42 vector unsigned int v_ui;
     43 vector float v_f;
     44 vector bool char v_bc;
     45 vector bool short v_bs;
     46 vector bool int v_bi;
     47 vector __bool char v___bc;
     48 vector __bool short v___bs;
     49 vector __bool int v___bi;
     50 vector __pixel v_p;
     51 vector pixel v__p;
     52 vector int f__r();
     53 void f_a(vector int a);
     54 void f_a2(int b, vector int a);
     55 
     56 vector int v = (vector int)(-1);
     57 
     58 // These should have warnings.
     59 __vector long vv_l;                 // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     60 __vector signed long vv_sl;         // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     61 __vector unsigned long vv_ul;       // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     62 __vector long int vv_li;            // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     63 __vector signed long int vv_sli;    // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     64 __vector unsigned long int vv_uli;  // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     65 vector long v_l;                    // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     66 vector signed long v_sl;            // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     67 vector unsigned long v_ul;          // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     68 vector long int v_li;               // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     69 vector signed long int v_sli;       // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     70 vector unsigned long int v_uli;     // expected-warning {{Use of 'long' with '__vector' is deprecated}}
     71 __vector long double  vv_ld;        // expected-error {{cannot use 'long double' with '__vector'}}
     72 vector long double  v_ld;           // expected-error {{cannot use 'long double' with '__vector'}}
     73 
     74 // These should have errors.
     75 __vector double vv_d1;               // expected-error {{use of 'double' with '__vector' requires VSX support to be enabled (available on POWER7 or later)}}
     76 vector double v_d2;                  // expected-error {{use of 'double' with '__vector' requires VSX support to be enabled (available on POWER7 or later)}}
     77 __vector bool long long v_bll1;      // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
     78 __vector __bool long long v_bll2;    // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
     79 vector bool long long v_bll3;        // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
     80 vector __bool long long v_bll4;      // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
     81 __vector long double  vv_ld3;        // expected-error {{cannot use 'long double' with '__vector'}}
     82 vector long double  v_ld4;           // expected-error {{cannot use 'long double' with '__vector'}}
     83 vector bool v_b;                     // expected-error {{C++ requires a type specifier for all declarations}}
     84 vector bool float v_bf;              // expected-error {{cannot use 'float' with '__vector bool'}}
     85 vector bool double v_bd;             // expected-error {{cannot use 'double' with '__vector bool'}}
     86 vector bool pixel v_bp;              // expected-error {{cannot use '__pixel' with '__vector bool'}}
     87 vector bool signed char v_bsc;       // expected-error {{cannot use 'signed' with '__vector bool'}}
     88 vector bool unsigned int v_bsc2;     // expected-error {{cannot use 'unsigned' with '__vector bool'}}
     89 vector bool long v_bl;               // expected-error {{cannot use 'long' with '__vector bool'}}
     90 vector __bool float v___bf;          // expected-error {{cannot use 'float' with '__vector bool'}}
     91 vector __bool double v___bd;         // expected-error {{cannot use 'double' with '__vector bool'}}
     92 vector __bool pixel v___bp;          // expected-error {{cannot use '__pixel' with '__vector bool'}}
     93 vector __bool signed char v___bsc;   // expected-error {{cannot use 'signed' with '__vector bool'}}
     94 vector __bool unsigned int v___bsc2; // expected-error {{cannot use 'unsigned' with '__vector bool'}}
     95 vector __bool long v___bl;           // expected-error {{cannot use 'long' with '__vector bool'}}
     96 
     97 // vector long is deprecated, but vector long long is not.
     98 vector long long v_ll;
     99 vector signed long long v_sll;
    100 vector unsigned long long v_ull;
    101 
    102 void f() {
    103   __vector unsigned int v = {0,0,0,0};
    104   __vector int v__cast = (__vector int)v;
    105   __vector int v_cast = (vector int)v;
    106   __vector char vb_cast = (vector char)v;
    107 
    108   // Check some casting between gcc and altivec vectors.
    109   #define gccvector __attribute__((vector_size(16)))
    110   gccvector unsigned int gccv = {0,0,0,0};
    111   gccvector unsigned int gccv1 = gccv;
    112   gccvector int gccv2 = (gccvector int)gccv;
    113   gccvector unsigned int gccv3 = v;
    114   __vector unsigned int av = gccv;
    115   __vector int avi = (__vector int)gccv;
    116   gccvector unsigned int gv = v;
    117   gccvector int gvi = (gccvector int)v;
    118   __attribute__((vector_size(8))) unsigned int gv8;
    119   gv8 = gccv;     // expected-error {{assigning to '__attribute__((__vector_size__(2 * sizeof(unsigned int)))) unsigned int' (vector of 2 'unsigned int' values) from incompatible type '__attribute__((__vector_size__(4 * sizeof(unsigned int)))) unsigned int' (vector of 4 'unsigned int' values)}}
    120   av = gv8;       // expected-error {{assigning to '__vector unsigned int' (vector of 4 'unsigned int' values) from incompatible type '__attribute__((__vector_size__(2 * sizeof(unsigned int)))) unsigned int' (vector of 2 'unsigned int' values)}}
    121 
    122   v = gccv;
    123   __vector unsigned int tv = gccv;
    124   gccv = v;
    125   gccvector unsigned int tgv = v;
    126 }
    127 
    128 // Now for the C++ version:
    129 
    130 class vc__v {
    131   __vector int v;
    132   __vector int f__r();
    133   void f__a(__vector int a);
    134   void f__a2(int b, __vector int a);
    135 };
    136 
    137 class c_v {
    138   vector int v;
    139   vector int f__r();
    140   void f__a(vector int a);
    141   void f__a2(int b, vector int a);
    142 };
    143 
    144 
    145 // bug 6895 - Vectorl literal casting confusion.
    146 vector char v1 = (vector char)((vector int)(1, 2, 3, 4));
    147 vector char v2 = (vector char)((vector float)(1.0f, 2.0f, 3.0f, 4.0f));
    148 vector char v3 = (vector char)((vector int)('a', 'b', 'c', 'd'));
    149 vector int v4 = (vector int)(1, 2, 3, 4);
    150 vector float v5 = (vector float)(1.0f, 2.0f, 3.0f, 4.0f);
    151 vector char v6 = (vector char)((vector int)(1+2, -2, (int)(2.0 * 3), -(5-3)));
    152 
    153 // bug 7553 - Problem with '==' and vectors
    154 void func() {
    155   bool res_b;
    156   res_b = (vv_sc == vv_sc);
    157   res_b = (vv_uc != vv_uc);
    158   res_b = (vv_s > vv_s);
    159   res_b = (vv_us >= vv_us);
    160   res_b = (vv_i < vv_i);
    161   res_b = (vv_ui <= vv_ui);
    162   res_b = (vv_f <= vv_f);
    163 }
    164 
    165 // vecreturn attribute test
    166 struct Vector
    167 {
    168 	__vector float xyzw;
    169 } __attribute__((vecreturn));
    170 
    171 Vector Add(Vector lhs, Vector rhs)
    172 {
    173 	Vector result;
    174 	result.xyzw = vec_add(lhs.xyzw, rhs.xyzw);
    175 	return result; // This will (eventually) be returned in a register
    176 }
    177 
    178 // vecreturn attribute test - should error because of virtual function.
    179 class VectorClassNonPod
    180 {
    181 	__vector float xyzw;
    182 public:
    183   VectorClassNonPod() {}
    184   virtual ~VectorClassNonPod() {}
    185 } __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)}}
    186 
    187 // vecreturn attribute test - should error because of virtual function.
    188 class VectorClassMultipleMembers
    189 {
    190 public:
    191 	__vector float xyzw;
    192 	__vector float abcd;
    193 } __attribute__((vecreturn));     // expected-error {{the vecreturn attribute can only be used on a class or structure with one member, which must be a vector}}
    194 
    195 template<typename... Args> void PR16874() {
    196 	(void) (Args::foo()...); // expected-error {{expression contains unexpanded parameter pack 'Args'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    197 }
    198 
    199