fix alignment check (#103)

JuliaMath · Jul 24, 2019 · 55f33ae · 55f33ae · stevengj · Jul 24, 2019
1 parent 0c4e743
commit 55f33ae
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/test/runtests.jl b/test/runtests.jl
@@ -508,6 +508,11 @@ let A = rand(Float32, 35), Ac = rand(Complex{Float32}, 35)
             @test Yc[io] ≈ fft(Ac[ii])
         end
     end
-    @test_throws ArgumentError plan_rfft(Array{Float32}(undef, 32)) * view(A, 2:33)
-    @test_throws ArgumentError plan_fft(Array{Complex{Float32}}(undef, 32)) * view(Ac, 2:33)
+
+    # check whether FFTW on this architecture has nontrivial alignment requirements
+    nontrivial_alignment = FFTW.fftw_vendor == :fftw && ccall((:fftwf_alignment_of, FFTW.libfftw3f), Int32, (Int,), 8) != 0
+    if nontrivial_alignment
+        @test_throws ArgumentError plan_rfft(Array{Float32}(undef, 32)) * view(A, 2:33)
+        @test_throws ArgumentError plan_fft(Array{Complex{Float32}}(undef, 32)) * view(Ac, 2:33)
+    end
 end