Update HIP LTO handling to unblock specialization #407

	name: Build and test

	on:
	pull_request:

	jobs:
	build-and-test:
	name: proteus ${{ matrix.os }} LLVM ${{ matrix.llvm }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	llvm: [17.0.5]
	enable_debug: [on, off]
	enable_time_tracing: [on, off]
	build_shared: [on, off]
	defaults:
	run:
	shell: bash -el {0}
	steps:
	- uses: actions/checkout@v4
	- name: Setup conda
	uses: conda-incubator/setup-miniconda@v3
	with:
	conda-remove-defaults: true
	# Install Clang/LLVM using conda and lit, filecheck utilities.
	- name: Create environment
	run: \|
	conda install -y -c conda-forge \
	clang=${{ matrix.llvm }} \
	clangxx=${{ matrix.llvm }} \
	llvmdev=${{ matrix.llvm }} \
	lit=${{ matrix.llvm }}
	ln -s ${CONDA_PREFIX}/libexec/llvm/FileCheck ${CONDA_PREFIX}/bin
	- name: Build enable_debug=${{ matrix.enable_debug }} enable_time_tracing=${{ matrix.enable_time_tracing }} build_shared=${{ matrix.build_shared }}
	run: \|
	mkdir -p build
	pushd build
	cmake .. \
	-DCMAKE_C_COMPILER=clang \
	-DCMAKE_CXX_COMPILER=clang++ \
	-DLLVM_INSTALL_DIR=$(llvm-config --prefix) \
	-DPROTEUS_ENABLE_DEBUG=${{ matrix.enable_debug }} \
	-DPROTEUS_ENABLE_TIME_TRACING=${{ matrix.enable_time_tracing }} \
	-DBUILD_SHARED=${{ matrix.build_shared }} \|& tee cmake_output.log
	if grep -q "Manually-specified variables were not used by the project:" cmake_output.log; then
	echo "Error: Unused variables detected"
	exit 1
	fi
	make -j
	popd
	- name: Test
	run: \|
	pushd build
	make test
	popd

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