Writing to a global matrix in back-compat mode causes compiler to crash in some cases #1530

float g_s;
float4 g_v = float4(1.0, -1.0, 0.0, 1.0);
// TODO: writing to a global matrix currently causes the compiler to crash. fix it.
// int2x2 g_m;
bool g_b = false;
int g_a[5];
int g_a2d[3][2];
float4 main(uint a
            : A) : SV_Target {
  // update global scalar
  g_s = a;

  // update global vector
  g_v = float4(a + 1, a + 2, a + 3, a + 4);

  /*
  // update global matrix
  for (uint i = 0; i < 2; i++)
    for (uint j = 0; j < 2; j++)
      g_m[i][j] = a + i + j;
  */
  
  // update global 2d array
  for (uint i = 0; i < 3; i++)
    for (uint j = 0; j < 2; j++)
      g_a2d[i][j] = a + i + j;

  // update global array
  for (uint i = 0; i < 5; i++)
    g_a[i] = a + i;

  // update global boolean
  g_b = true;

  return float4(g_s, g_s, g_s, g_s) +
         g_v +
         // float4(g_m[0][0], g_m[0][1], g_m[1][0], g_m[1][1]) +
         float4(g_a2d[0][0], g_a2d[0][1], g_a2d[1][0], g_a2d[1][1]) +
         float4(g_a[0], g_a[1], g_a[2], g_a[3]);
}