1 // RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -fsyntax-only -verify -Wconversion %s
2
3 typedef __attribute__((ext_vector_type(4))) char char4;
4 typedef __attribute__((ext_vector_type(4))) short short4;
5 typedef __attribute__((ext_vector_type(1))) float float1;
6
test(void)7 static void test(void) {
8 char4 vc4;
9 float f;
10 // Not allowed. There's no splatting conversion between float and int vector,
11 // and we don't want to bitcast f to vector-of-char (as would happen with the
12 // old-style vector types).
13 vc4 += f; // expected-error {{cannot convert between vector values of different size}}
14 short4 vs4;
15 long long ll;
16 // This one is OK; we don't re-interpret ll as short4, rather we splat its
17 // value, which should produce a warning about clamping.
18 vs4 += ll; // expected-warning {{implicit conversion loses integer precision}}
19 }
20