1// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
2
3typedef float float4 __attribute__((ext_vector_type(4)));
4
5struct __attribute__((packed, aligned(4))) struct1 {
6  float4 position;
7};
8int x = __alignof(struct struct1);
9
10float4 f(struct struct1* x) { return x->position; }
11
12void func(struct struct1* p, float *a, float *b, float c) {
13  p->position.x = c;
14  *a = p->position.y;
15  *b = p->position[0];
16  p->position[2] = c;
17  // FIXME: We should be able to come up with a more aggressive alignment
18  // estimate.
19  // CHECK: @func
20  // CHECK: load <4 x float>* {{%.*}}, align 1
21  // CHECK: store <4 x float> {{%.*}}, <4 x float>* {{%.*}}, align 1
22  // CHECK: load <4 x float>* {{%.*}}, align 1
23  // CHECK: load <4 x float>* {{%.*}}, align 1
24  // CHECK: load <4 x float>* {{%.*}}, align 1
25  // CHECK: store <4 x float> {{%.*}}, <4 x float>* {{%.*}}, align 1
26  // CHECK: ret void
27}
28