1 // RUN: %clang_cc1 -fsyntax-only %s -verify -Wvector-conversion 2 3 typedef long long t1 __attribute__ ((vector_size (8))); 4 typedef char t2 __attribute__ ((vector_size (16))); 5 typedef float t3 __attribute__ ((vector_size (16))); 6 typedef short s2 __attribute__ ((vector_size(4))); 7 8 typedef enum { Evalue = 0x10000 } E; 9 f()10void f() 11 { 12 t1 v1; 13 t2 v2; 14 t3 v3; 15 s2 v4; 16 E e; 17 18 e = (E)v4; 19 v4 = (s2)e; 20 21 v2 = (t2)v1; // expected-error {{invalid conversion between vector type \ 22 't2' (vector of 16 'char' values) and 't1' (vector of 1 'long long' value) of different size}} 23 v1 = (t1)v2; // expected-error {{invalid conversion between vector type \ 24 't1' (vector of 1 'long long' value) and 't2' (vector of 16 'char' values) of different size}} 25 v3 = (t3)v2; 26 27 v1 = (t1)(char *)10; // expected-error {{invalid conversion between vector \ 28 type 't1' (vector of 1 'long long' value) and scalar type 'char *'}} 29 v1 = (t1)(long long)10; 30 v1 = (t1)(short)10; // expected-error {{invalid conversion between vector \ 31 type 't1' (vector of 1 'long long' value) and integer type 'short' of different size}} 32 33 long long r1 = (long long)v1; 34 short r2 = (short)v1; // expected-error {{invalid conversion between vector \ 35 type 't1' (vector of 1 'long long' value) and integer type 'short' of different size}} 36 char *r3 = (char *)v1; // expected-error {{invalid conversion between vector\ 37 type 't1' (vector of 1 'long long' value) and scalar type 'char *'}} 38 } 39 40 41 void f2(t2 X); // expected-note{{passing argument to parameter 'X' here}} 42 f3(t3 Y)43void f3(t3 Y) { 44 f2(Y); // expected-warning {{incompatible vector types passing 't3' (vector of 4 'float' values) to parameter of type 't2' (vector of 16 'char' values)}} 45 } 46 47 typedef float float2 __attribute__ ((vector_size (8))); 48 typedef __attribute__((vector_size(8))) double float64x1_t; 49 typedef __attribute__((vector_size(16))) double float64x2_t; 50 float64x1_t vget_low_f64(float64x2_t __p0); 51 f4()52void f4() { 53 float2 f2; 54 double d, a, b, c; 55 float64x2_t v = {0.0, 1.0}; 56 f2 += d; 57 a = 3.0 + vget_low_f64(v); 58 b = vget_low_f64(v) + 3.0; 59 c = vget_low_f64(v); 60 // LAX conversions within compound assignments are not supported. 61 // FIXME: This diagnostic is inaccurate. 62 d += f2; // expected-error {{cannot convert between vector values of different size}} 63 c -= vget_low_f64(v); // expected-error {{cannot convert between vector values of different size}} 64 // LAX conversions between scalar and vector types require same size and one element sized vectors. 65 d = f2; // expected-error {{assigning to 'double' from incompatible type 'float2'}} 66 d = d + f2; // expected-error {{assigning to 'double' from incompatible type 'float2'}} 67 } 68 69 // rdar://15931426 70 // Don't permit a lax conversion to and from a pointer type. 71 typedef short short_sizeof_pointer __attribute__((vector_size(sizeof(void*)))); f5()72void f5() { 73 short_sizeof_pointer v; 74 void *ptr; 75 v = ptr; // expected-error-re {{assigning to 'short_sizeof_pointer' (vector of {{[0-9]+}} 'short' values) from incompatible type 'void *'}} 76 ptr = v; // expected-error {{assigning to 'void *' from incompatible type 'short_sizeof_pointer'}} 77 } 78