remove unused entries in Makefile

Makefile

@@ -1,6 +1,6 @@
 PYTHON?=python3
 INC_DIR= -I../src  -I./include -I./test
-CFLAGS += $(INC_DIR) -O2 -DNDEBUG -std=c++20 -mfma
+CFLAGS += $(INC_DIR) -O2 -DNDEBUG
 CFLAGS_WARN=-Wall -Wextra -Wformat=2 -Wcast-qual -Wcast-align -Wwrite-strings -Wfloat-equal -Wpointer-arith
 CFLAGS+=$(CFLAGS_WARN)
 LDFLAGS=-L lib -lfmath
@@ -39,70 +39,21 @@ update:
 	$(MAKE) src/fmath.S src/fmath.asm
 
 obj/%.o: %.cpp include/fmath.h test/table.h
-	$(CXX) -c -o $@ $< $(CFLAGS) -MMD -MP -MF $(@:.o=.d)
+	$(CXX) -c -o $@ $< $(CFLAGS) -MMD -MP -MF $(@:.o=.d) -std=c++20 -mfma
 
 obj/cpu.o: cpu.cpp include/fmath.h
 	$(CXX) -c -o $@ $< $(CFLAGS) -MMD -MP -MF $(@:.o=.d) -fno-exceptions -fno-rtti -fno-threadsafe-statics #-fvisibility=hidden
 
 bin/%.exe: obj/%.o $(LIB)
 	$(CXX) -o $@ $< $(LDFLAGS)
 
-bench: bench.o
-	$(CXX) -o $@ $<
-
-fastexp: fastexp.o
-	$(CXX) -o $@ $<
-
-avx2: avx2.cpp fmath.hpp
-	$(CXX) -o $@ $< -O3 -mavx2 -mtune=native -Iinclude
-
-EXP_UN?=4
-exp_unroll_n: obj/exp_v.o
-	@$(PYTHON) src/gen_fmath.py -m gas -exp_un $(EXP_UN) > src/fmath$(EXP_UN).S
-	@$(CXX) -o bin/exp_v$(EXP_UN).exe obj/exp_v.o src/fmath$(EXP_UN).S $(CFLAGS) -I ../include
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-	@bin/exp_v$(EXP_UN).exe b
-
-exp_unroll: obj/exp_v.o
-	@sh -ec 'for i in 1 2 3 4 5 6 7 8; do echo EXP_UN=$$i; make -s exp_unroll_n EXP_UN=$$i; done'
-
-LOG_MODE?=allreg
-LOG_UN?=4
-log_unroll_n: obj/log_v.o
-	@$(PYTHON) src/gen_fmath.py -m gas -log_un $(LOG_UN) -log_mode $(LOG_MODE) > src/fmath$(LOG_UN).S
-	@$(CXX) -o bin/log_v$(LOG_UN).exe obj/log_v.o src/fmath$(LOG_UN).S $(CFLAGS) -I ../include
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-	@bin/log_v$(LOG_UN).exe b
-
-log_unroll: obj/log_v.o
-	@sh -ec 'for i in 1 2 3 4 5; do echo LOG_UN=$$i; make -s log_unroll_n LOG_UN=$$i; done'
-
 clean:
 	$(RM) obj/*.o obj/*.d $(TARGET) bin/*.exe src/*.S
 
 test: bin/exp_v.exe bin/log_v.exe
 	bin/exp_v.exe
 	bin/log_v.exe
 
-bench.o: bench.cpp $(HEADER)
-fastexp.o: fastexp.cpp $(HEADER)
-
 .PHONY: test clean
 
 # don't remove these files automatically

src/fmath.S

@@ -70,11 +70,9 @@ PRE(log2_log2):
 .long 0x3f317218,0x3f317218,0x3f317218,0x3f317218,0x3f317218,0x3f317218,0x3f317218,0x3f317218
 .balign 64
 PRE(log2_tbl1):
-.long 0x3f800000,0x3f639220,0x3f4ccccd,0x3f3a2e8c,0x3faaaaab,0x3f9d89d9,0x3f924777,0x3f888507
+.long 0x3f800000,0x3f639220,0x3f4ccccd,0x3f3a2e8c,0x3faaae92,0x3f9d8dbf,0x3f924777,0x3f888507
 PRE(log2_tbl2):
-.long 0x0,0x3df1151c,0x3e647fbd,0x3ea30c5d,0xbe934b12,0xbe549f6c,0xbe08b0b5,0xbd83f82e
-PRE(log2_i7):
-.long 7,7,7,7,7,7,7,7
+.long 0x0,0x3df1151c,0x3e647fbd,0x3ea30c5d,0xbe9356c6,0xbe54b8c3,0xbe08b0b5,0xbd83f82e
 .text
 .balign 16
 .global PRE(fmath_expf_v_avx512)