// #target: macos-x64
module foob;
import libc;
struct Matrix2x2
{
	union
	{
		float[4] m;
		struct
		{
			float m00, m01, m10, m11;
		}
	}
}

struct Matrix2x2_b
{
	union
	{
		struct
		{
			float m00, m01, m10, m11;
		}
		float[4] m;
	}
}
struct Matrix4x4
{
    union
    {
        struct
        {
            float m00, m01, m02, m03;
            float m10, m11, m12, m13;
            float m20, m21, m22, m23;
            float m30, m31, m32, m33;
        }
        float[16] m;
    }
}


struct Matrix3x3
{
    union
    {
        struct
        {
            float m00, m01, m02, m10, m11, m12, m20, m21, m22;
        }
        float[9] m;
    }
}
fn void main()
{
	Matrix3x3 x = { 1, 2, 3, 4, 5, 6, 7,8 ,9};
	Matrix2x2 m = { (float[4]) { 1, 2, 3, 4 } };
	Matrix2x2_b m2 = { 1, 2, 3, 4 };
	libc::printf("%f %f %f %f\n", x.m00, x.m[1], x.m10, x.m[3]);
}

/* #expect: foob.ll

%Matrix2x2 = type { %.anon.1 }
%.anon.1 = type { [4 x float] }
%Matrix2x2_b = type { %.anon.2 }
%.anon.2 = type { %.anon.3 }
%.anon.3 = type { float, float, float, float }
%Matrix3x3 = type { %.anon }
%.anon = type { %.anon.0 }
%.anon.0 = type { float, float, float, float, float, float, float, float, float }

define void @foob.main() #0 {
entry:
  %x = alloca %Matrix3x3, align 4
  %m = alloca %Matrix2x2, align 4
  %m2 = alloca %Matrix2x2_b, align 4
  store float 1.000000e+00, ptr %x, align 4
  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
  store float 2.000000e+00, ptr %ptradd, align 4
  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
  store float 3.000000e+00, ptr %ptradd1, align 4
  %ptradd2 = getelementptr inbounds i8, ptr %x, i64 12
  store float 4.000000e+00, ptr %ptradd2, align 4
  %ptradd3 = getelementptr inbounds i8, ptr %x, i64 16
  store float 5.000000e+00, ptr %ptradd3, align 4
  %ptradd4 = getelementptr inbounds i8, ptr %x, i64 20
  store float 6.000000e+00, ptr %ptradd4, align 4
  %ptradd5 = getelementptr inbounds i8, ptr %x, i64 24
  store float 7.000000e+00, ptr %ptradd5, align 4
  %ptradd6 = getelementptr inbounds i8, ptr %x, i64 28
  store float 8.000000e+00, ptr %ptradd6, align 4
  %ptradd7 = getelementptr inbounds i8, ptr %x, i64 32
  store float 9.000000e+00, ptr %ptradd7, align 4
  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m, ptr align 4 @.__const, i32 16, i1 false)
  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m2, ptr align 4 @.__const.16, i32 16, i1 false)
  %0 = load float, ptr %x, align 4
  %fpfpext = fpext float %0 to double
  %ptradd8 = getelementptr inbounds i8, ptr %x, i64 4
  %1 = load float, ptr %ptradd8, align 4
  %fpfpext9 = fpext float %1 to double
  %ptradd10 = getelementptr inbounds i8, ptr %x, i64 12
  %2 = load float, ptr %ptradd10, align 4
  %fpfpext11 = fpext float %2 to double
  %ptradd12 = getelementptr inbounds i8, ptr %x, i64 12
  %3 = load float, ptr %ptradd12, align 4
  %fpfpext13 = fpext float %3 to double
  %4 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext9, double %fpfpext11, double %fpfpext13)
  ret void
}