diff --git a/test/linalg/matmul.jl b/test/linalg/matmul.jl
index 0f44b8cf8479c..3ac079b930731 100644
--- a/test/linalg/matmul.jl
+++ b/test/linalg/matmul.jl
@@ -388,15 +388,3 @@ let
         @test_throws DimensionMismatch A_mul_B!(full43, full43, tri44)
     end
 end
-
-# Ensure that matrix multiplication with a narrower output type than input type does not
-# produce allocation in the inner loop (#14722), by ensuring allocation does not change
-# with the size of the input.
-C1 = Array(Float32, 5, 5)
-A1 = rand(Float64, 5, 5)
-B1 = rand(Float64, 5, 5)
-C2 = Array(Float32, 6, 6)
-A2 = rand(Float64, 6, 6)
-B2 = rand(Float64, 6, 6)
-A_mul_B!(C1, A1, B1)
-@test @allocated(A_mul_B!(C1, A1, B1)) == @allocated(A_mul_B!(C2, A2, B2))