itype correction for Int32 plats

Author: rayegun

test/spqr.jl

@@ -19,7 +19,9 @@ nn = 100
 
 @test repr("text/plain", qr(sprandn(4, 4, 0.5)).Q) == "4×4 $(SparseArrays.SPQR.QRSparseQ{Float64, Int})"
 
-@testset "element type of A: $eltyA" for eltyA in (Float64, ComplexF64), iltyA in (Int32, Int64)
+itypes = sizeof(Int) == 4 ? (Int32,) : (Int32, Int64)
+
+@testset "element type of A: $eltyA" for eltyA in (Float64, ComplexF64), iltyA in itypes
     if eltyA <: Real
         A = sparse(iltyA[1:n; rand(1:m, nn - n)], iltyA[1:n; rand(1:n, nn - n)], randn(nn), m, n)
     else