[HLS] Fix select op printing issue #261

	name: Build and Test
	on: [push, pull_request]
	jobs:
	build-scalehls:
	name: Build and Test
	runs-on: ubuntu-latest
	steps:
	- name: Get ScaleHLS
	uses: actions/checkout@v2
	with:
	submodules: recursive

	- name: Clang Format
	uses: DoozyX/[email protected]
	with:
	exclude: './polygeist ./samples ./test'
	clangFormatVersion: 11
	style: llvm

	- name: Get LLVM Hash
	id: get-llvm-hash
	run: echo "::set-output name=hash::$(git -C ./polygeist rev-parse @:./llvm-project)"

	- name: Cache LLVM
	id: cache-llvm
	uses: actions/cache@v2
	with:
	path: polygeist/llvm-project/build
	key: ${{ runner.os }}-llvm-${{ steps.get-llvm-hash.outputs.hash }}

	- name: Rebuild LLVM
	if: steps.cache-llvm.outputs.cache-hit != 'true'
	run: \|
	mkdir -p polygeist/llvm-project/build
	cd polygeist/llvm-project/build
	cmake ../llvm \
	-DLLVM_ENABLE_PROJECTS="mlir" \
	-DLLVM_TARGETS_TO_BUILD="host" \
	-DCMAKE_BUILD_TYPE=RELEASE \
	-DLLVM_USE_LINKER=lld \
	-DCMAKE_C_COMPILER=clang \
	-DCMAKE_CXX_COMPILER=clang++
	cmake --build . -j $(nproc)

	- name: Build and Test ScaleHLS
	run: \|
	mkdir -p build
	cd build
	cmake .. \
	-DMLIR_DIR="$PWD/../polygeist/llvm-project/build/lib/cmake/mlir" \
	-DLLVM_DIR="$PWD/../polygeist/llvm-project/build/lib/cmake/llvm" \
	-DLLVM_ENABLE_ASSERTIONS=ON \
	-DCMAKE_BUILD_TYPE=DEBUG \
	-DLLVM_USE_LINKER=lld \
	-DCMAKE_C_COMPILER=clang \
	-DCMAKE_CXX_COMPILER=clang++
	cmake --build . --target check-scalehls -j $(nproc)

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