Make appveyor use ispc for blas builds (#236)

Author: borg323

appveyor.yml

@@ -23,6 +23,9 @@ environment:
 install:
 - cmd: IF %CUDA%==false nuget install OpenBLAS -Version 0.2.14.1 -OutputDirectory C:\cache
 - cmd: IF %CUDA%==false nuget install opencl-nug -Version 0.777.12 -OutputDirectory C:\cache
+- cmd: IF %BLAS%==true IF NOT EXIST C:\cache\ispc-v1.9.2-windows appveyor DownloadFile https://sourceforge.net/projects/ispcmirror/files/v1.9.2/ispc-v1.9.2-windows.zip
+- cmd: IF %BLAS%==true IF NOT EXIST C:\cache\ispc-v1.9.2-windows 7z x ispc-v1.9.2-windows.zip -oC:\cache
+- cmd: IF %BLAS%==true set PATH=C:\cache\ispc-v1.9.2-windows;%PATH%
 - cmd: set "CUDA_PATH=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.2"
 - cmd: IF %CUDA%==true IF NOT EXIST "%CUDA_PATH%" appveyor DownloadFile https://developer.nvidia.com/compute/cuda/9.2/Prod2/local_installers/cuda_9.2.148_win10
 - cmd: IF %CUDA%==true IF NOT EXIST "%CUDA_PATH%" cuda_9.2.148_win10 -s nvcc_9.2 cublas_dev_9.2 cublas_9.2 cudart_9.2
@@ -46,7 +49,7 @@ cache:
   - C:\projects\lc0\subprojects\packagecache
 before_build:
 - cmd: git submodule update --init --recursive
-- cmd: meson.py build --backend vs2015 --buildtype release -Dgtest=%GTEST% -Dopencl=%OPENCL% -Dblas=%BLAS% -Dcudnn=%CUDA% -Dcudnn_include="%PKG_FOLDER%\cuda\include" -Dcudnn_libdirs="%CUDA_PATH%\lib\x64","%PKG_FOLDER%\cuda\lib\x64" -Dprotobuf_include="%PKG_FOLDER%\protobuf\include" -Dprotobuf_libdir="%PKG_FOLDER%\protobuf\lib" -Dopenblas_include="%PKG_FOLDER%\OpenBLAS.0.2.14.1\lib\native\include" -Dopenblas_libdirs="%PKG_FOLDER%\OpenBLAS.0.2.14.1\lib\native\lib\x64" -Dopencl_include="%PKG_FOLDER%\opencl-nug.0.777.12\build\native\include" -Dopencl_libdirs="%PKG_FOLDER%\opencl-nug.0.777.12\build\native\lib\x64" -Ddefault_library=static
+- cmd: meson.py build --backend vs2015 --buildtype release -Dgtest=%GTEST% -Dopencl=%OPENCL% -Dblas=%BLAS% -Dcudnn=%CUDA% -Dispc_native_only=false -Dcudnn_include="%PKG_FOLDER%\cuda\include" -Dcudnn_libdirs="%CUDA_PATH%\lib\x64","%PKG_FOLDER%\cuda\lib\x64" -Dprotobuf_include="%PKG_FOLDER%\protobuf\include" -Dprotobuf_libdir="%PKG_FOLDER%\protobuf\lib" -Dopenblas_include="%PKG_FOLDER%\OpenBLAS.0.2.14.1\lib\native\include" -Dopenblas_libdirs="%PKG_FOLDER%\OpenBLAS.0.2.14.1\lib\native\lib\x64" -Dopencl_include="%PKG_FOLDER%\opencl-nug.0.777.12\build\native\include" -Dopencl_libdirs="%PKG_FOLDER%\opencl-nug.0.777.12\build\native\lib\x64" -Ddefault_library=static
 build:
   parallel: true
   project: build/lc0.sln