clang/test/CodeGen/ext-vector-member-alignment.c

   1 // RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
   2
   3 typedef float float4 __attribute__((ext_vector_type(4)));
   4
   5 struct __attribute__((packed, aligned(4))) struct1 {
   6   float4 position;
   7 };
   8 int x = __alignof(struct struct1);
   9
  10 float4 f(struct struct1* x) { return x->position; }
  11
  12 void 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   // CHECK: @func
  18   // CHECK: load <4 x float>, ptr {{%.*}}, align 4
  19   // CHECK: store <4 x float> {{%.*}}, ptr {{%.*}}, align 4
  20   // CHECK: load <4 x float>, ptr {{%.*}}, align 4
  21   // CHECK: load <4 x float>, ptr {{%.*}}, align 4
  22   // CHECK: load <4 x float>, ptr {{%.*}}, align 4
  23   // CHECK: store <4 x float> {{%.*}}, ptr {{%.*}}, align 4
  24   // CHECK: ret void
  25 }