Migrate build system to CMake

See #5895 for details.

This commit does not include CI or documentation changes.

cmake_Makefile_left

@@ -0,0 +1,48 @@
+ifneq ($(SEED),)
+SEEDOPT="-S $(SEED)"
+endif
+
+ifneq ($(ABCEXTERNAL),)
+ABCOPT="-A $(ABCEXTERNAL)"
+endif
+
+test: vanilla-test unit-test
+
+vanilla-test: $(TARGETS) $(EXTRA_TARGETS)
+	@$(MAKE) -C tests vanilla-test \
+	$(if $(ENABLE_VERIFIC),ENABLE_VERIFIC=$(ENABLE_VERIFIC)) \
+	$(if $(YOSYS_NOVERIFIC),YOSYS_NOVERIFIC=$(YOSYS_NOVERIFIC)) \
+	SEEDOPT=$(SEEDOPT) ABCOPT=$(ABCOPT)
+
+unit-test: libyosys.so
+	@$(MAKE) -f $(UNITESTPATH)/Makefile CXX="$(CXX)" CC="$(CC)" CPPFLAGS="$(CPPFLAGS)" \
+		CXXFLAGS="$(CXXFLAGS)" LINKFLAGS="$(LINKFLAGS)" LIBS="$(LIBS)" ROOTPATH="$(CURDIR)"
+
+VALGRIND ?= valgrind --error-exitcode=1 --leak-check=full --show-reachable=yes --errors-for-leak-kinds=all
+
+vgtest: $(TARGETS) $(EXTRA_TARGETS)
+	$(VALGRIND) ./yosys -p 'setattr -mod -unset top; synth' $$( ls tests/simple/*.v | grep -v repwhile.v )
+	@echo ""
+	@echo "  Passed \"make vgtest\"."
+	@echo ""
+
+vloghtb: $(TARGETS) $(EXTRA_TARGETS)
+	+cd tests/vloghtb && bash run-test.sh
+	@echo ""
+	@echo "  Passed \"make vloghtb\"."
+	@echo ""
+
+ystests: $(TARGETS) $(EXTRA_TARGETS)
+	rm -rf tests/ystests
+	git clone https://github.com/YosysHQ/yosys-tests.git tests/ystests
+	+$(MAKE) PATH="$$PWD:$$PATH" -C tests/ystests
+	@echo ""
+	@echo "  Finished \"make ystests\"."
+	@echo ""
+
+FUNC_KERNEL := functional.cc functional.h sexpr.cc sexpr.h compute_graph.h
+FUNC_INCLUDES := $(addprefix --include *,functional/* $(FUNC_KERNEL))
+coverage_functional:
+	rm -rf coverage.info coverage_html
+	lcov --capture -d backends/functional -d kernel $(FUNC_INCLUDES) --no-external -o coverage.info
+	genhtml coverage.info --output-directory coverage_html