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PREFIX ?= /usr/local
DESTDIR ?=
BUILD_DIR ?= build
LIB_NAME := bfft
VERSION := 1.0
CXX ?= c++
CC ?= cc
AR ?= ar
INSTALL ?= install
SED ?= sed
CXX_STD ?= c++17
CXXOPTFLAGS ?= -O3
CXXWARNFLAGS ?= -Wall -Wextra -Wpedantic
COPTFLAGS ?= -O2
CWARNFLAGS ?= -Wall -Wextra -Wpedantic
CPPFLAGS ?=
BFFT_USE_DIT_RFFT ?= 0
BFFT_USE_DIT_RFFT_INVERSE ?= 0
BFFT_USE_DIP_RFFT ?= 0
BFFT_USE_DIP_RFFT_INVERSE ?= 0
ifeq ($(BFFT_USE_DIT_RFFT),1)
CPPFLAGS += -DBFFT_USE_DIT_RFFT=1
endif
ifeq ($(BFFT_USE_DIT_RFFT_INVERSE),1)
CPPFLAGS += -DBFFT_USE_DIT_RFFT_INVERSE=1
endif
ifeq ($(BFFT_USE_DIP_RFFT),1)
CPPFLAGS += -DBFFT_USE_DIP_RFFT=1
endif
ifeq ($(BFFT_USE_DIP_RFFT_INVERSE),1)
CPPFLAGS += -DBFFT_USE_DIP_RFFT_INVERSE=1
endif
# BFFT_MAKE_DOCTOR_CXXFLAGS_GUARD_BEGIN
ifeq ($(filter undefined default,$(origin CXXFLAGS)),)
else
CXXFLAGS := $(CXXOPTFLAGS) -DNDEBUG -std=$(CXX_STD) -fPIC $(CXXWARNFLAGS)
endif
# BFFT_MAKE_DOCTOR_CXXFLAGS_GUARD_END
# BFFT_MAKE_DOCTOR_CFLAGS_GUARD_BEGIN
ifeq ($(filter undefined default,$(origin CFLAGS)),)
else
CFLAGS := $(COPTFLAGS) -std=c11 $(CWARNFLAGS)
endif
# BFFT_MAKE_DOCTOR_CFLAGS_GUARD_END
LDFLAGS ?=
LDLIBS ?= -lm
UNAME_M := $(shell uname -m 2>/dev/null || echo unknown)
UNAME_S := $(shell uname -s 2>/dev/null || echo unknown)
ifeq ($(UNAME_S),Darwin)
DL_LIBS ?=
ACCELERATE_LIBS ?= -framework Accelerate
APPLE_EXAMPLES = $(APPLE_BENCH)
else
DL_LIBS ?= -ldl
ACCELERATE_LIBS ?=
APPLE_EXAMPLES :=
endif
AVX2_FLAGS := $(shell $(CXX) -x c++ -std=$(CXX_STD) -mavx2 -mfma -c /dev/null -o /tmp/bfft-avx2-test.o >/dev/null 2>&1 && rm -f /tmp/bfft-avx2-test.o && echo '-mavx2 -mfma')
SSE2_FLAGS := $(shell $(CXX) -x c++ -std=$(CXX_STD) -msse2 -mno-avx -c /dev/null -o /tmp/bfft-sse2-test.o >/dev/null 2>&1 && rm -f /tmp/bfft-sse2-test.o && echo '-msse2 -mno-avx')
ifeq ($(findstring x86_64,$(UNAME_M)),x86_64)
AUTO_SIMD_FLAGS := $(AVX2_FLAGS)
else
AUTO_SIMD_FLAGS :=
endif
INCLUDES := -Iinclude
LIB_CPPFLAGS := $(CPPFLAGS) $(INCLUDES)
LIB_CXXFLAGS := $(CXXFLAGS) $(AUTO_SIMD_FLAGS)
SRC := src/bfft.cpp
OBJ := $(BUILD_DIR)/src/bfft.o
BODFT_SRC := src/bodft.cpp
BODFT_OBJ := $(BUILD_DIR)/src/bodft.o
STFT_SRC := src/stft.cpp
STFT_OBJ := $(BUILD_DIR)/src/stft.o
LIB_OBJS := $(OBJ) $(BODFT_OBJ) $(STFT_OBJ)
STATIC_LIB := $(BUILD_DIR)/lib$(LIB_NAME).a
SHARED_LIB := $(BUILD_DIR)/lib$(LIB_NAME).so
PC_FILE := $(BUILD_DIR)/$(LIB_NAME).pc
BENCH := $(BUILD_DIR)/examples/benchmark
BODFT_BENCH := $(BUILD_DIR)/examples/bodft_benchmark
DIP_BENCH := $(BUILD_DIR)/examples/dip_benchmark
DIF_DIP_BENCH := $(BUILD_DIR)/examples/dif_vs_dip_benchmark
DIF_DIT_DIP_BENCH := $(BUILD_DIR)/examples/dif_dit_dip_benchmark
DIF_DIT_BENCH := $(BUILD_DIR)/examples/dif_vs_dit_benchmark
DIF_DIT_F32_BENCH := $(BUILD_DIR)/examples/dif_vs_dit_f32_benchmark
APPLE_BENCH := $(BUILD_DIR)/examples/apple_benchmark
ATAN2_BENCH := $(BUILD_DIR)/examples/atan2_benchmark
LOCALITY_PROBE := $(BUILD_DIR)/examples/locality_probe
C_DEMO := $(BUILD_DIR)/examples/c_api_demo
CPP_DEMO := $(BUILD_DIR)/examples/cpp_api_demo
CORRECTNESS_TEST := $(BUILD_DIR)/tests/correctness
C_API_TEST := $(BUILD_DIR)/tests/api_c
SUPPORT_PROBE := $(BUILD_DIR)/tests/bfft_fftw_support_probe
INVARIANT_PROBE := $(BUILD_DIR)/tests/bfft_invariant_support_probe
SFDR_PROBE := $(BUILD_DIR)/tests/bfft_fftw_sfdr_probe
BH7_PROBE := $(BUILD_DIR)/tests/bfft_fftw_sfdr_bh7_probe
LIBRARY_COMPARE_PROBE := $(BUILD_DIR)/tests/bfft_library_compare_probe
AVX2_ASM := $(BUILD_DIR)/src/bfft_avx2.s
BODFT_AVX2_ASM := $(BUILD_DIR)/src/bodft_avx2.s
SSE2_ASM := $(BUILD_DIR)/src/bfft_sse2.s
ASM_OUTPUTS :=
ifneq ($(AVX2_FLAGS),)
ASM_OUTPUTS += $(AVX2_ASM) $(BODFT_AVX2_ASM)
endif
ifneq ($(SSE2_FLAGS),)
ASM_OUTPUTS += $(SSE2_ASM)
endif
.PHONY: all clean test install uninstall examples benchmarks probes docs asm-check check-standards check-cxx17 check-cxx20 check-cxx23
all: $(STATIC_LIB) $(SHARED_LIB) examples
$(BUILD_DIR):
mkdir -p $(BUILD_DIR)/src $(BUILD_DIR)/examples $(BUILD_DIR)/tests $(BUILD_DIR)/benchmarks
$(OBJ): $(SRC) include/bfft/bfft.h src/detail/bruun_dif_kernel.hpp src/detail/bruun_dit_kernel.hpp src/detail/bruun_dip_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(LIB_CPPFLAGS) $(LIB_CXXFLAGS) -c $< -o $@
$(BODFT_OBJ): $(BODFT_SRC) include/bfft/bodft.h include/bfft/bfft.h src/detail/bodft_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(LIB_CPPFLAGS) $(LIB_CXXFLAGS) -c $< -o $@
$(STFT_OBJ): $(STFT_SRC) include/bfft/stft.h include/bfft/bfft.h include/bfft/bodft.h | $(BUILD_DIR)
$(CXX) $(LIB_CPPFLAGS) $(LIB_CXXFLAGS) -c $< -o $@
$(STATIC_LIB): $(LIB_OBJS)
$(AR) rcs $@ $^
$(SHARED_LIB): $(LIB_OBJS)
$(CXX) -shared $(LDFLAGS) -o $@ $^ $(LDLIBS)
$(PC_FILE): pkgconfig/bfft.pc.in | $(BUILD_DIR)
$(SED) \
-e 's|@CMAKE_INSTALL_LIBDIR@|lib|g' \
-e 's|@CMAKE_INSTALL_INCLUDEDIR@|include|g' \
-e 's|@PROJECT_VERSION@|$(VERSION)|g' \
$< > $@
examples: $(BENCH) $(BODFT_BENCH) $(DIP_BENCH) $(DIF_DIP_BENCH) $(DIF_DIT_DIP_BENCH) $(APPLE_EXAMPLES) $(LOCALITY_PROBE) $(C_DEMO) $(CPP_DEMO)
benchmarks: $(BENCH) $(BODFT_BENCH) $(DIP_BENCH) $(DIF_DIP_BENCH) $(DIF_DIT_DIP_BENCH) $(DIF_DIT_BENCH) $(DIF_DIT_F32_BENCH) $(ATAN2_BENCH)
asm-check: $(ASM_OUTPUTS)
@if [ -z "$(ASM_OUTPUTS)" ]; then echo "No x86 assembly variants supported by $(CXX)."; fi
$(AVX2_ASM): $(SRC) include/bfft/bfft.h src/detail/bruun_dif_kernel.hpp src/detail/bruun_dit_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(LIB_CPPFLAGS) $(CXXFLAGS) $(AVX2_FLAGS) -S -fverbose-asm $< -o $@
$(BODFT_AVX2_ASM): $(BODFT_SRC) include/bfft/bodft.h include/bfft/bfft.h src/detail/bodft_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(LIB_CPPFLAGS) $(CXXFLAGS) $(AVX2_FLAGS) -S -fverbose-asm $< -o $@
$(SSE2_ASM): $(SRC) include/bfft/bfft.h src/detail/bruun_dif_kernel.hpp src/detail/bruun_dit_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(LIB_CPPFLAGS) $(CXXFLAGS) $(SSE2_FLAGS) -S -fverbose-asm $< -o $@
$(BENCH): examples/benchmark.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) -o $@
$(BODFT_BENCH): examples/bodft_benchmark.cpp src/detail/bodft_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(LDLIBS) -o $@
$(DIP_BENCH): examples/dip_benchmark.cpp src/detail/bruun_dip_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/bruun_simd_backend.hpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(DIF_DIP_BENCH): examples/dif_vs_dip_benchmark.cpp src/detail/bruun_dip_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/bruun_simd_backend.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(DIF_DIT_DIP_BENCH): examples/dif_dit_dip_benchmark.cpp src/detail/bruun_dip_kernel.hpp src/detail/bruun_dit_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/bruun_simd_backend.hpp src/detail/MAG_REPRESENT_KERNEL.hpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(DIF_DIT_BENCH): examples/dif_vs_dit_benchmark.cpp src/detail/bruun_dit_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(DIF_DIT_F32_BENCH): examples/dif_vs_dit_f32_benchmark.cpp src/detail/bruun_dit_kernel.hpp src/detail/bruun_dif_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(ATAN2_BENCH): examples/atan2_benchmark.cpp src/detail/bruun_dif_kernel.hpp src/detail/MAG_REPRESENT_KERNEL.hpp | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $(AUTO_SIMD_FLAGS) $< $(LDLIBS) -o $@
$(APPLE_BENCH): examples/apple_benchmark.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) $(ACCELERATE_LIBS) -o $@
$(LOCALITY_PROBE): examples/locality_probe.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(C_DEMO): examples/c_api_demo.c include/bfft/bfft.h $(STATIC_LIB) | $(BUILD_DIR)
$(CC) $(CPPFLAGS) $(INCLUDES) $(CFLAGS) $< $(STATIC_LIB) $(LDLIBS) -lstdc++ -o $@
$(CPP_DEMO): examples/cpp_api_demo.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(CORRECTNESS_TEST): tests/correctness.cpp include/bfft/bfft.hpp src/detail/bruun_dip_kernel.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) -o $@
$(C_API_TEST): tests/api_c.c include/bfft/bfft.h $(STATIC_LIB) | $(BUILD_DIR)
$(CC) $(CPPFLAGS) $(INCLUDES) $(CFLAGS) $< $(STATIC_LIB) $(LDLIBS) -lstdc++ -o $@
$(SUPPORT_PROBE): tests/bfft_fftw_support_probe.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) -o $@
$(INVARIANT_PROBE): tests/bfft_invariant_support_probe.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) -o $@
$(SFDR_PROBE): tests/bfft_fftw_sfdr_probe.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) -o $@
$(BH7_PROBE): tests/bfft_fftw_sfdr_bh7_probe.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) -o $@
$(LIBRARY_COMPARE_PROBE): tests/bfft_library_compare_probe.cpp include/bfft/bfft.hpp $(STATIC_LIB) | $(BUILD_DIR)
$(CXX) $(CPPFLAGS) $(INCLUDES) $(CXXFLAGS) $< $(STATIC_LIB) $(LDLIBS) $(DL_LIBS) -o $@
probes: $(SUPPORT_PROBE) $(INVARIANT_PROBE) $(SFDR_PROBE) $(BH7_PROBE) $(LIBRARY_COMPARE_PROBE)
test: $(CORRECTNESS_TEST) $(C_API_TEST)
$(CORRECTNESS_TEST)
$(C_API_TEST)
check-cxx17:
$(MAKE) clean BUILD_DIR=build-cxx17
$(MAKE) test BUILD_DIR=build-cxx17 CXX_STD=c++17 CXXWARNFLAGS="$(CXXWARNFLAGS) -Werror" CWARNFLAGS="$(CWARNFLAGS) -Werror"
check-cxx20:
$(MAKE) clean BUILD_DIR=build-cxx20
$(MAKE) test BUILD_DIR=build-cxx20 CXX_STD=c++20 CXXWARNFLAGS="$(CXXWARNFLAGS) -Werror" CWARNFLAGS="$(CWARNFLAGS) -Werror"
check-cxx23:
$(MAKE) clean BUILD_DIR=build-cxx23
$(MAKE) test BUILD_DIR=build-cxx23 CXX_STD=c++23 CXXWARNFLAGS="$(CXXWARNFLAGS) -Werror" CWARNFLAGS="$(CWARNFLAGS) -Werror"
check-standards: check-cxx17 check-cxx20 check-cxx23
install: all $(PC_FILE)
$(INSTALL) -d $(DESTDIR)$(PREFIX)/include/bfft
$(INSTALL) -d $(DESTDIR)$(PREFIX)/lib
$(INSTALL) -d $(DESTDIR)$(PREFIX)/lib/pkgconfig
$(INSTALL) -m 0644 include/bfft/bfft.h $(DESTDIR)$(PREFIX)/include/bfft/bfft.h
$(INSTALL) -m 0644 include/bfft/bfft.hpp $(DESTDIR)$(PREFIX)/include/bfft/bfft.hpp
$(INSTALL) -m 0644 include/bfft/bodft.h $(DESTDIR)$(PREFIX)/include/bfft/bodft.h
$(INSTALL) -m 0644 include/bfft/bodft.hpp $(DESTDIR)$(PREFIX)/include/bfft/bodft.hpp
$(INSTALL) -m 0644 include/bfft/stft.h $(DESTDIR)$(PREFIX)/include/bfft/stft.h
$(INSTALL) -m 0644 include/bfft/stft.hpp $(DESTDIR)$(PREFIX)/include/bfft/stft.hpp
$(INSTALL) -m 0644 $(STATIC_LIB) $(DESTDIR)$(PREFIX)/lib/lib$(LIB_NAME).a
$(INSTALL) -m 0755 $(SHARED_LIB) $(DESTDIR)$(PREFIX)/lib/lib$(LIB_NAME).so
$(INSTALL) -m 0644 $(PC_FILE) $(DESTDIR)$(PREFIX)/lib/pkgconfig/$(LIB_NAME).pc
uninstall:
rm -f $(DESTDIR)$(PREFIX)/include/bfft/bfft.h
rm -f $(DESTDIR)$(PREFIX)/include/bfft/bfft.hpp
rm -f $(DESTDIR)$(PREFIX)/include/bfft/bodft.h
rm -f $(DESTDIR)$(PREFIX)/include/bfft/bodft.hpp
rm -f $(DESTDIR)$(PREFIX)/include/bfft/stft.h
rm -f $(DESTDIR)$(PREFIX)/include/bfft/stft.hpp
rm -f $(DESTDIR)$(PREFIX)/lib/lib$(LIB_NAME).a
rm -f $(DESTDIR)$(PREFIX)/lib/lib$(LIB_NAME).so
rm -f $(DESTDIR)$(PREFIX)/lib/pkgconfig/$(LIB_NAME).pc
clean:
$(RM) -r $(BUILD_DIR)
.PHONY: print-flags
print-flags:
@echo "origin CXXFLAGS=$(origin CXXFLAGS)"
@echo "CXXFLAGS=$(CXXFLAGS)"
@echo "origin CFLAGS=$(origin CFLAGS)"
@echo "CFLAGS=$(CFLAGS)"
@echo "AUTO_SIMD_FLAGS=$(AUTO_SIMD_FLAGS)"
@echo "LIB_CXXFLAGS=$(LIB_CXXFLAGS)"
@echo "LIB_CXXFLAGS origin is makefile-expanded"