diff --git a/base/broadcast.jl b/base/broadcast.jl
index 5422f5edd3e6f..e45e944f3aa25 100644
--- a/base/broadcast.jl
+++ b/base/broadcast.jl
@@ -464,7 +464,8 @@ julia> Broadcast.combine_axes(1, 1, 1)
 ()
 ```
 """
-@inline combine_axes(A, B...) = broadcast_shape(axes(A), combine_axes(B...))
+@inline combine_axes(A, B, C...) = broadcast_shape(axes(A), combine_axes(B, C...))
+@inline combine_axes(A, B) = broadcast_shape(axes(A), axes(B))
 combine_axes(A) = axes(A)
 
 # shape (i.e., tuple-of-indices) inputs
@@ -502,7 +503,7 @@ function check_broadcast_shape(shp, Ashp::Tuple)
     _bcsm(shp[1], Ashp[1]) || throw(DimensionMismatch("array could not be broadcast to match destination"))
     check_broadcast_shape(tail(shp), tail(Ashp))
 end
-check_broadcast_axes(shp, A) = check_broadcast_shape(shp, axes(A))
+@inline check_broadcast_axes(shp, A) = check_broadcast_shape(shp, axes(A))
 # comparing many inputs
 @inline function check_broadcast_axes(shp, A, As...)
     check_broadcast_axes(shp, A)
@@ -911,7 +912,7 @@ _is_static_broadcast_28126(dest::AbstractArray, x::AbstractArray{<:Any,1}) = axe
 _is_static_broadcast_28126(dest::AbstractArray, x::AbstractArray) = axes(dest) == axes(x) # This can be better with other missing dimensions
 
 @inline _is_static_broadcast_28126_args(dest, args::Tuple) = _is_static_broadcast_28126(dest, args[1]) && _is_static_broadcast_28126_args(dest, tail(args))
-_is_static_broadcast_28126_args(dest, args::Tuple{Any}) = _is_static_broadcast_28126(dest, args[1])
+@inline _is_static_broadcast_28126_args(dest, args::Tuple{Any}) = _is_static_broadcast_28126(dest, args[1])
 _is_static_broadcast_28126_args(dest, args::Tuple{}) = true
 
 struct _NonExtruded28126{T}
diff --git a/test/broadcast.jl b/test/broadcast.jl
index a18c5fabca662..483e3ebe01ee5 100644
--- a/test/broadcast.jl
+++ b/test/broadcast.jl
@@ -791,14 +791,15 @@ let
 end
 
 @testset "large fusions vectorize and don't allocate (#28126)" begin
-    u, k1, k2, k3, k4, k5, k6, k7 = (ones(1000) for i in 1:8)
-    function goo(u, k1, k2, k3, k4, k5, k6, k7)
-        @. u = 0.1*(0.1*k1 + 0.2*k2 + 0.3*k3 + 0.4*k4 + 0.5*k5 + 0.6*k6 + 0.7*k7)
+    using InteractiveUtils: code_llvm
+    u, uprev, k1, k2, k3, k4, k5, k6, k7 = (ones(1000) for i in 1:9)
+    function goo(u, uprev, k1, k2, k3, k4, k5, k6, k7)
+        @. u = uprev + 0.1*(0.1*k1 + 0.2*k2 + 0.3*k3 + 0.4*k4 + 0.5*k5 + 0.6*k6 + 0.7*k7)
         nothing
     end
-    @allocated goo(u, k1, k2, k3, k4, k5, k6, k7)
-    @test @allocated(goo(u, k1, k2, k3, k4, k5, k6, k7)) == 0
-    @test occursin("vector.body", sprint(code_llvm, goo, NTuple{8, Vector{Float32}}))
+    @allocated goo(u, uprev, k1, k2, k3, k4, k5, k6, k7)
+    @test @allocated(goo(u, uprev, k1, k2, k3, k4, k5, k6, k7)) == 0
+    @test occursin("vector.body", sprint(code_llvm, goo, NTuple{9, Vector{Float32}}))
 end
 
 # Broadcasted iterable/indexable APIs