Adding the start of the instruction test infrastructure.

test/codegen/Makefile

@@ -0,0 +1,37 @@
+BINUTILS=../../build/binutils/
+PPC_AS=$(BINUTILS)/gas/as-new
+PPC_LD=$(BINUTILS)/ld/ld-new
+PPC_OBJDUMP=$(BINUTILS)/binutils/objdump
+
+SRCS=$(wildcard *.s)
+BINS=$(SRCS:.s=.bin)
+DISASMS=$(SRCS:.s=.dis)
+
+%.o: %.s
+	$(PPC_AS) \
+		-a64 \
+		-be \
+		-mregnames \
+		-mpower7 \
+		-maltivec \
+		-mvsx \
+		-R \
+		-o $@ \
+		$<
+
+%.dis: %.o
+	$(PPC_OBJDUMP) --adjust-vma=0x82010000 -Mpower7 -D -EB $< > $@
+
+%.bin: %.o
+	$(PPC_LD) \
+		-A powerpc:common64 \
+		-melf64ppc \
+		-EB \
+		-nostdlib \
+		--oformat binary \
+		-Ttext 0x82010000 \
+		-e 0x82010000 \
+		-o $@ \
+		$<
+
+all: $(BINS) $(DISASMS)