message: Remove support for vector icmp for now
  Real simd support will need an overhaul in the future anyway. For now it
  only complicates the code.
diff: @@ -17,22 +17,7 @@ fn validate_simd_type(fx: &mut FunctionCx<'_, '_, '_>, intrinsic: Symbol, span:
  macro simd_cmp {
  ($fx:expr, $cc:ident|$cc_f:ident($x:ident, $y:ident) -> $ret:ident) => {
  - let vector_ty = clif_vector_type($fx.tcx, $x.layout());
  -
  - if let Some(vector_ty) = vector_ty {
  - let x = $x.load_scalar($fx);
  - let y = $y.load_scalar($fx);
  - let val = if vector_ty.lane_type().is_float() {
  - $fx.bcx.ins().fcmp(FloatCC::$cc_f, x, y)
  - } else {
  - $fx.bcx.ins().icmp(IntCC::$cc, x, y)
  - };
  -
  - // HACK This depends on the fact that icmp for vectors represents bools as 0 and !0, not 0 and 1.
  - let val = $fx.bcx.ins().raw_bitcast(vector_ty, val);
  -
  - $ret.write_cvalue($fx, CValue::by_val(val, $ret.layout()));
  - } else {
  + // FIXME use vector icmp when possible
  simd_pair_for_each_lane(
  $fx,
  $x,
  @@ -47,7 +32,6 @@ fn validate_simd_type(fx: &mut FunctionCx<'_, '_, '_>, intrinsic: Symbol, span:
  bool_to_zero_or_max_uint(fx, res_lane_layout, res_lane)
  },
  );
  - }
  },
  ($fx:expr, $cc_u:ident|$cc_s:ident|$cc_f:ident($x:ident, $y:ident) -> $ret:ident) => {
  // FIXME use vector icmp when possible
  