## -*-Makefile-*-
##------------------------------------------------------------------------
## Common rules for generating, linking, and compiling via LLVM.
##------------------------------------------------------------------------

## NOTE: This is preliminary and will change in the future


include ${LEVEL}/Makefile.common

.PHONY: clean default

## keep %.linked.bc and %.s from being deleted while we're debugging
.PRECIOUS: %.bc %.s %.ll


TOOLS    = $(LEVEL)/tools/Debug

LLI      = $(TOOLS)/lli
LLC      = $(TOOLS)/llc
LAS      = $(TOOLS)/gccas
LDIS     = $(TOOLS)/dis 
LOPT     = $(TOOLS)/opt
LLINK    = $(TOOLS)/link
LLCFLAGS =

LCC      = /home/vadve/lattner/cvs/gcc_install/bin/gcc
LCFLAGS  = -O2 $(LOCAL_LCFLAGS) -Wall

LLCLIB   = $(LEVEL)/test/runtime.o
LIBS     = $(LLCLIB) $(LOCAL_LIBS)

ifeq ($(TRACE), yes)
    LLCFLAGS := $(LLCFLAGS) -trace
endif
ifeq ($(TRACEM), yes)
    LLCFLAGS := $(LLCFLAGS) -tracem
endif

NATGCC  = /usr/dcs/software/supported/bin/gcc

CC      = /opt/SUNWspro/bin/cc
AS	= /opt/SUNWspro/bin/cc
DIS     = /usr/ccs/bin/dis
CP	= /bin/cp -p
CFLAGS  = -g -xarch=v9 $(LOCAL_CFLAGS)
CCFLAGS = $(CFLAGS)
LDFLAGS = $(CFLAGS) $(LOCAL_LDFLAGS)
ASFLAGS = -c $(CFLAGS)

## Special targets to build a program from multiple source files
## 
ifdef PROG

  default:    $(PROG) $(PROG).native

  ifeq ($(strip $(OBJS)),)
    BCOBJS = $(PROG).bc
  else
    BCOBJS = $(OBJS:.o=.bc)
  endif

  $(PROG).linked.bc: $(BCOBJS)
	$(LLINK) -f $(BCOBJS) -o $(PROG).tmp.bc
	$(LOPT) -cleangcc -raise -constprop -dce $(PROG).tmp.bc -o $@ -f
	$(RM) $(PROG).tmp.bc

  $(PROG).native: $(OBJS:.o=.c)
	$(CC) $(OBJS:.o=.c) -g $(LOCAL_LCFLAGS) $(CFLAGS) -lm -o $@
endif

## Special target to force target-dependent library to be compiled
## directly to native code.
## 
$(LLCLIB): $(LLCLIB:.o=.c)
	cd $(LEVEL)/test; $(MAKE) $(@F)

runtime.o: runtime.c
	$(CC) -c $(CCFLAGS) $<

clean ::
	$(RM) *.bc *.mc *.s *.o a.out core $(PROG) $(PROG).native

%.mc: %.bc $(LLC) $(AS)
	@echo "Generating machine instructions for $<"
	$(LLC) -f -dsched y $(LLCFLAGS) $< > $@

%.trace.bc: %.bc $(LLC)
	$(LLC) -f -trace $(LLCFLAGS) $<


## FIXME: LIBS should be specified, not hardcoded to -lm
%.native: %.c
	$(NATGCC) $+ -lm -o $@

%.ll: %.c $(LCC)
	$(LCC) $(LCFLAGS) -S $< -o $@

%.bc: %.ll $(LAS)
	$(LAS) $< -o $@

%.linked.bc: %.bc
	$(CP) $< $@

%.s: %.linked.bc
	$(LLC) -f $(LLCFLAGS) $< -o $@

%: %.o $(LIBS)
	$(CC) $(LDFLAGS) $< $(LIBS) -o $@


## Cancel built-in implicit rules that override above rules
%: %.s

%: %.c

%.o: %.c

## The next two rules are for disassembling an executable or an object file
%.dis: %
	$(DIS) $< > $@

%.dis: %.o
	$(DIS) $< > $@