Update

src/implementations/BigFloat.jl

@@ -414,11 +414,6 @@ function _abs_lte_abs(x::F, y::F) where {F<:BigFloat}
  return ret
 end
 
-function _mpfr_swap(x::BigFloat, y::BigFloat)
- ccall((:mpfr_swap, :libmpfr), Cvoid, (Ref{BigFloat}, Ref{BigFloat}), x, y)
- return
-end
-
 function buffered_operate_to!(
  buf::DotBuffer{F},
  sum::F,
@@ -428,6 +423,7 @@ function buffered_operate_to!(
 ) where {F<:BigFloat}
  operate!(zero, sum)
  operate!(zero, buf.compensation)
+ tmp = zero(F)
  for i in 0:(length(x)-1)
  operate_to!(buf.multiplication_temp, copy, x[begin+i])
  operate!(*, buf.multiplication_temp, y[begin+i])
@@ -443,7 +439,9 @@ function buffered_operate_to!(
  operate!(+, buf.inner_temp, sum)
  end
  operate!(+, buf.compensation, buf.inner_temp)
- _mpfr_swap(sum, buf.summation_temp)
+ operate_to!(tmp, copy, buf.multiplication_temp)
+ operate_to!(buf.multiplication_temp, copy, sum)
+ operate_to!(sum, copy, tmp)
  end
  operate!(+, sum, buf.compensation)
  return sum