message: Two more mov variants.
diff: @@ -487,6 +487,9 @@ impl Emitter for Assembler {
  (Size::S8, Location::Imm32(x), Location::GPR(dst)) => {
  dynasm!(self ; b >after; data: ; .dword x as u8 as i32; after: ; ldr W(map_gpr(dst).x()), <data);
  }
  + (Size::S8, Location::Imm64(x), Location::GPR(dst)) => {
  + dynasm!(self ; b >after; data: ; .dword x as u8 as i32; after: ; ldr W(map_gpr(dst).x()), <data);
  + }
  (Size::S16, Location::GPR(src), Location::Memory(base, disp)) => {
  if disp >= 0 {
  dynasm!(self ; b >after ; disp: ; .dword disp ; after: ; ldr w_tmp3, <disp ; add x_tmp3, x_tmp3, X(map_gpr(base).x()));
  @@ -514,6 +517,9 @@ impl Emitter for Assembler {
  (Size::S16, Location::Imm32(x), Location::GPR(dst)) => {
  dynasm!(self ; b >after; data: ; .dword x as u16 as i32; after: ; ldr W(map_gpr(dst).x()), <data);
  }
  + (Size::S16, Location::Imm64(x), Location::GPR(dst)) => {
  + dynasm!(self ; b >after; data: ; .dword x as u16 as i32; after: ; ldr W(map_gpr(dst).x()), <data);
  + }
  (Size::S32, Location::XMM(src), Location::XMM(dst)) => {
  dynasm!(self ; fmov S(map_xmm(dst).v()), S(map_xmm(src).v()));
  }
  