error while concatenating to an empty CuArray

[aldopareja]

Describe the bug
Reproduction is straight forward

To Reproduce
Doesn't work:

using CuArrays
using Flux
x = zeros(Float32,10,0) |> gpu
y = ones(Float32,10,1) |> gpu
hcat(x,y)

Works:

x = zeros(Float32,10,1)
y = ones(Float32,10,1)
hcat(x,y)

also works

using CuArrays
using Flux
x = zeros(Float32,10,1) |> gpu
y = ones(Float32,10,1) |> gpu
hcat(x,y)

Expected behavior
I expect the concatenation to be successful when starting with an empty tensor

Build log

(new-code) pkg> build
  Building SpecialFunctions → `~/.julia/packages/SpecialFunctions/fvheQ/deps/build.log`
  Building LLVM ────────────→ `~/.julia/packages/LLVM/tg8MX/deps/build.log`
  Building Conda ───────────→ `~/.julia/packages/Conda/CpuvI/deps/build.log`
  Building FFTW ────────────→ `~/.julia/packages/FFTW/p7sLQ/deps/build.log`
  Building ZMQ ─────────────→ `~/.julia/packages/ZMQ/ABGOx/deps/build.log`
  Building ZipFile ─────────→ `~/.julia/packages/ZipFile/YHTbb/deps/build.log`
  Building CUDAdrv ─────────→ `~/.julia/packages/CUDAdrv/lu32K/deps/build.log`
  Building CUDAnative ──────→ `~/.julia/packages/CUDAnative/PFgO3/deps/build.log`
  Building CuArrays ────────→ `~/.julia/packages/CuArrays/qZCAt/deps/build.log`
  Building MbedTLS ─────────→ `~/.julia/packages/MbedTLS/X4xar/deps/build.log`
  Building CodecZlib ───────→ `~/.julia/packages/CodecZlib/9jDi1/deps/build.log`
  Building IJulia ──────────→ `~/.julia/packages/IJulia/9ajf8/deps/build.log`

Environment details (please complete this section)
Details on Julia:

julia> versioninfo()
Julia Version 1.1.0
Commit 80516ca (2019-01-21 21:24 UTC)
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-6.0.1 (ORCJIT, haswell)

#Installed Packages

$cat Project.toml 
[deps]
CuArrays = "3a865a2d-5b23-5a0f-bc46-62713ec82fae"
Flux = "587475ba-b771-5e3f-ad9e-33799f191a9c"
IJulia = "7073ff75-c697-5162-941a-fcdaad2a7d2a"
StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
YAML = "ddb6d928-2868-570f-bddf-ab3f9cf99eb6"

#CUDA versions

$nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Fri_Feb__8_19:08:17_PST_2019
Cuda compilation tools, release 10.1, V10.1.105

$ cat /usr/local/cuda/version.txt
CUDA Version 10.1.105

[maleadt]

This works now.