Obsidian/Makefile at main · gab8192/Obsidian · GitHub

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ifeq ($(OS),Windows_NT)
	EXE := Obsidian.exe
else
	EXE := Obsidian
endif

DEFAULT_NET = net89perm.bin

ifndef EVALFILE
	EVALFILE = $(DEFAULT_NET)
	DOWNLOAD_NET = true
endif

M64     = -m64 -mpopcnt
MSSE2   = $(M64) -msse -msse2
MSSSE3  = $(MSSE2) -mssse3
MAVX2   = $(MSSSE3) -msse4.1 -mbmi -mfma -mavx2
MAVX512 = $(MAVX2) -mavx512f -mavx512bw

FILES = $(wildcard src/*.cpp) src/fathom/src/tbprobe.c

OBJS = $(FILES:.cpp=.o)
OBJS := $(OBJS:.c=.o)

OPTIMIZE = -O3 -fno-stack-protector -fno-math-errno -funroll-loops -fno-exceptions -flto -flto-partition=one

FLAGS = -s -pthread -std=c++17 -DNDEBUG -DEvalFile=\"$(EVALFILE)\" $(OPTIMIZE)

ifeq ($(OS),Windows_NT)
	FLAGS += -static
endif

ifeq ($(build),)
	build = native
endif

ifeq ($(build), native)
    FLAGS += -march=native
else ifeq ($(findstring sse2, $(build)), sse2)
	FLAGS += $(MSSE2)
else ifeq ($(findstring ssse3, $(build)), ssse3)
	FLAGS += $(MSSSE3)
else ifeq ($(findstring avx2, $(build)), avx2)
	FLAGS += $(MAVX2)
else ifeq ($(findstring avx512, $(build)), avx512)
	FLAGS += $(MAVX512)
endif

ifeq ($(build), native)
	PROPS = $(shell echo | $(CC) -march=native -E -dM -)
	ifneq ($(findstring __BMI2__, $(PROPS)),)
		ifeq ($(findstring __znver1, $(PROPS)),)
			ifeq ($(findstring __znver2, $(PROPS)),)
				FLAGS += -DUSE_PEXT
			else ifeq ($(shell uname), Linux)
				ifneq ($(findstring AMD EPYC 7B, $(shell lscpu)),)
					FLAGS += -DUSE_PEXT
				endif
			endif
		endif
	endif
else ifeq ($(findstring avx512, $(build)), avx512)
	FLAGS += -DUSE_PEXT -mbmi2
else ifeq ($(findstring pext, $(build)), pext)
	FLAGS += -DUSE_PEXT -mbmi2
endif

%.o: %.cpp
	g++ $(FLAGS) -c $< -o $@

%.o: %.c
	gcc $(FLAGS) -c $< -o $@

make: download-net $(FILES)
	g++ $(FLAGS) $(FILES) -o $(EXE) -fprofile-generate="obs_pgo"
ifeq ($(OS),Windows_NT)
	$(EXE) bench
else
	./$(EXE) bench
endif
	g++ $(FLAGS) $(FILES) -o $(EXE) -fprofile-use="obs_pgo"
ifeq ($(OS),Windows_NT)
	powershell.exe -Command "Remove-Item -Recurse -Force obs_pgo"
else
	rm -rf obs_pgo
endif

nopgo: download-net $(OBJS)
	g++ $(FLAGS) $(OBJS) -o $(EXE)

clean:
	rm -f $(OBJS)

download-net:
ifdef DOWNLOAD_NET
	@if test -f "$(EVALFILE)"; then \
		echo "File $(EVALFILE) already exists, skipping download."; \
	else \
		echo Downloading net; \
		curl -sOL https://github.com/gab8192/Obsidian-nets/releases/download/nets/$(EVALFILE); \
	fi
endif