message: Fix compile error on `imul`.
diff: @@ -641,6 +641,13 @@ impl X64FunctionCode {
  BothToGPR,
  }
  let mode = match (src, dst) {
  + (Location::GPR(_), Location::GPR(_))
  + if (op as *const u8 == Assembler::emit_imul as *const u8) =>
  + {
  + RelaxMode::Direct
  + }
  + _ if (op as *const u8 == Assembler::emit_imul as *const u8) => RelaxMode::BothToGPR,
  +
  (Location::Memory(_, _), Location::Memory(_, _)) => RelaxMode::SrcToGPR,
  (Location::Imm64(_), Location::Imm64(_)) | (Location::Imm64(_), Location::Imm32(_)) => {
  RelaxMode::BothToGPR
  @@ -653,7 +660,6 @@ impl X64FunctionCode {
  RelaxMode::SrcToGPR
  }
  (_, Location::XMM(_)) => RelaxMode::SrcToGPR,
  - _ if (op as *const u8 == Assembler::emit_imul as *const u8) => RelaxMode::BothToGPR, // TODO: optimize this
  _ => RelaxMode::Direct,
  };
  