diff --git a/base/reduce.jl b/base/reduce.jl
index a0cf96614fc96..8ccf79b43847a 100644
--- a/base/reduce.jl
+++ b/base/reduce.jl
@@ -202,7 +202,7 @@ struct SIMDableFunction{f}; end
 (::SIMDableFunction{f})(args...) where {f} = f(args...)
 simdable(f::Union{map(typeof, (+, *, &, |, add_sum, mul_prod, -, /, ^, identity))...}) = SIMDableFunction{f}()
 simdable(f) = f
-function _mapreduce_impl_loop(f::SIMDableFunction, op::SIMDableFunction, A::Array, ifirst, ilast)
+@inline function _mapreduce_impl_loop(f::SIMDableFunction, op::SIMDableFunction, A::Array, ifirst, ilast)
     @inbounds a1 = A[ifirst]
     @inbounds a2 = A[ifirst+1]
     v = op(f(a1), f(a2))
@@ -212,7 +212,7 @@ function _mapreduce_impl_loop(f::SIMDableFunction, op::SIMDableFunction, A::Arra
     end
     return v
 end
-function _mapreduce_impl_loop(f, op, A, ifirst, ilast)
+@inline function _mapreduce_impl_loop(f, op, A, ifirst, ilast)
     @inbounds a1 = A[ifirst]
     @inbounds a2 = A[ifirst+1]
     v = op(f(a1), f(a2))
diff --git a/base/reducedim.jl b/base/reducedim.jl
index 9051c26f14c11..9eeaa5fcbbec4 100644
--- a/base/reducedim.jl
+++ b/base/reducedim.jl
@@ -237,7 +237,7 @@ end
 
 # The innermost loops are split out to allow for @simd in known safe cases
 # add a few more simd-safe functions that were not available earlier in bootstrap
-simdable(f::Union{map(typeof, (abs, sqrt, log, log10, log2))...}) = SIMDableFunction{f}()
+simdable(f::Union{map(typeof, (abs, abs2, sqrt, log, log10, log2))...}) = SIMDableFunction{f}()
 @inline function _mapreducedim_loop1!(f, op, R, A, IR, IA, i1)
     @inbounds begin
         r = R[i1,IR]