vector-cast.c revision 199ea95fd5ef9a089dbf7b2ade018d4444a65177 
1// RUN: clang-cc -fsyntax-only %s -verify -Wvector-conversions
2
3typedef long long t1 __attribute__ ((vector_size (8)));
4typedef char t2 __attribute__ ((vector_size (16)));
5typedef float t3 __attribute__ ((vector_size (16)));
6
7void f()
8{
9  t1 v1;
10  t2 v2;
11  t3 v3;
12
13  v2 = (t2)v1; // -expected-error {{invalid conversion between vector type \
14't2' and 't1' of different size}}
15  v1 = (t1)v2; // -expected-error {{invalid conversion between vector type \
16't1' and 't2' of different size}}
17  v3 = (t3)v2;
18
19  v1 = (t1)(char *)10; // -expected-error {{invalid conversion between vector \
20type 't1' and scalar type 'char *'}}
21  v1 = (t1)(long long)10;
22  v1 = (t1)(short)10; // -expected-error {{invalid conversion between vector \
23type 't1' and integer type 'short' of different size}}
24
25  long long r1 = (long long)v1;
26  short r2 = (short)v1; // -expected-error {{invalid conversion between vector \
27type 't1' and integer type 'short' of different size}}
28  char *r3 = (char *)v1; // -expected-error {{invalid conversion between vector\
29 type 't1' and scalar type 'char *'}}
30}
31
32
33void f2(t2 X);
34
35void f3(t3 Y) {
36  f2(Y);  // expected-warning {{incompatible vector types passing 't3', expected 't2'}}
37}
38
39