message: Rustup to rustc 1.38.0-nightly (534b42394 2019-08-09)
diff: @@ -601,6 +601,34 @@ pub fn codegen_intrinsic_call<'a, 'tcx: 'a>(
  }
  }
  };
  + uninit, () {
  + if ret.layout().abi == Abi::Uninhabited {
  + crate::trap::trap_panic(fx, "[panic] Called intrinsic::uninit for uninhabited type.");
  + return;
  + }
  + match ret {
  + CPlace::NoPlace(_layout) => unreachable!("{:?}", ret),
  + CPlace::Var(var, layout) => {
  + let clif_ty = fx.clif_type(layout.ty).unwrap();
  + let val = match clif_ty {
  + types::I8 | types::I16 | types::I32 | types::I64 => fx.bcx.ins().iconst(clif_ty, 42),
  + types::F32 => {
  + let zero = fx.bcx.ins().iconst(types::I32, 0xdeadbeef);
  + fx.bcx.ins().bitcast(types::F32, zero)
  + }
  + types::F64 => {
  + let zero = fx.bcx.ins().iconst(types::I64, 0xcafebabedeadbeefu64 as i64);
  + fx.bcx.ins().bitcast(types::F64, zero)
  + }
  + _ => panic!("clif_type returned {}", clif_ty),
  + };
  + fx.bcx.def_var(mir_var(var), val);
  + }
  + CPlace::Addr(_, _, _) | CPlace::Stack(_, _) => {
  + // Don't write to `ret`, as the destination memory is already uninitialized.
  + }
  + }
  + };
  write_bytes, (c dst, v val, v count) {
  let pointee_ty = dst.layout().ty.builtin_deref(true).unwrap().ty;
  let pointee_size = fx.layout_of(pointee_ty).size.bytes();
  