qbe/Makefile
Roland Paterson-Jones 95541ccfb0 Simple Inner Loop Optimzation
Two simple loop optimizations.

1. Strength reduction of mul[tiplication] by loop induction
variable.

2. Hoisting of (address) base into phi where loop induction
variable is used only as a base (address) offset.

Limited to loops with a single body block, which happily
is always innermost loops. This restriction would not be
very hard to lift - it would require detecting the set of
loop blocks (and ensuring reducibility?)

Limited to loop induction variables with 0 initial value
and increment of 1 (for mul strength reduction). This
limitation is trivial to lift; however all of the
cproc/hare[c]/coremark opportunity is with 0/1 loops for
mul reduction, and 0 initial value for base-offset opt.
2025-03-21 16:02:12 +01:00

101 lines
2.5 KiB
Makefile

.POSIX:
.SUFFIXES: .o .c
PREFIX = /usr/local
BINDIR = $(PREFIX)/bin
COMMOBJ = main.o util.o parse.o abi.o cfg.o mem.o ssa.o alias.o load.o \
copy.o fold.o gvn.o gcm.o loopopt.o simpl.o live.o spill.o rega.o \
emit.o
AMD64OBJ = amd64/targ.o amd64/sysv.o amd64/isel.o amd64/emit.o
ARM64OBJ = arm64/targ.o arm64/abi.o arm64/isel.o arm64/emit.o
RV64OBJ = rv64/targ.o rv64/abi.o rv64/isel.o rv64/emit.o
OBJ = $(COMMOBJ) $(AMD64OBJ) $(ARM64OBJ) $(RV64OBJ)
SRCALL = $(OBJ:.o=.c)
CC = cc
CFLAGS = -std=c99 -g -Wall -Wextra -Wpedantic
qbe: $(OBJ)
$(CC) $(LDFLAGS) $(OBJ) -o $@
.c.o:
$(CC) $(CFLAGS) -c $< -o $@
$(OBJ): all.h ops.h
$(AMD64OBJ): amd64/all.h
$(ARM64OBJ): arm64/all.h
$(RV64OBJ): rv64/all.h
main.o: config.h
config.h:
@case `uname` in \
*Darwin*) \
case `uname -m` in \
*arm64*) \
echo "#define Deftgt T_arm64_apple";\
;; \
*) \
echo "#define Deftgt T_amd64_apple";\
;; \
esac \
;; \
*) \
case `uname -m` in \
*aarch64*|*arm64*) \
echo "#define Deftgt T_arm64"; \
;; \
*riscv64*) \
echo "#define Deftgt T_rv64"; \
;; \
*) \
echo "#define Deftgt T_amd64_sysv";\
;; \
esac \
;; \
esac > $@
install: qbe
mkdir -p "$(DESTDIR)$(BINDIR)"
install -m755 qbe "$(DESTDIR)$(BINDIR)/qbe"
uninstall:
rm -f "$(DESTDIR)$(BINDIR)/qbe"
clean:
rm -f *.o */*.o qbe
clean-gen: clean
rm -f config.h
check: qbe
tools/test.sh all
check-x86_64: qbe
TARGET=x86_64 tools/test.sh all
check-arm64: qbe
TARGET=arm64 tools/test.sh all
check-rv64: qbe
TARGET=rv64 tools/test.sh all
src:
@echo $(SRCALL)
80:
@for F in $(SRCALL); \
do \
awk "{ \
gsub(/\\t/, \" \"); \
if (length(\$$0) > $@) \
printf(\"$$F:%d: %s\\n\", NR, \$$0); \
}" < $$F; \
done
wc:
@wc -l $(SRCALL)
.PHONY: clean clean-gen check check-arm64 check-rv64 src 80 wc install uninstall