diff -ruN /dev/null test/Makefile
--- /dev/null	1969-12-31 19:00:00.000000000 -0500
+++ test/Makefile	2012-09-16 14:25:18.000000000 -0400
@@ -0,0 +1,11 @@
+test.so: ls2e.o ls2f.o
+	$(CC) -shared ls2e.o ls2f.o -o $@
+
+ls2e.o: ls2e.c
+	$(CC) -O2 -march=loongson2e -c $< -o $@
+
+ls2f.o: ls2f.c
+	$(CC) -O2 -march=loongson2f -c $< -o $@
+
+clean:
+	rm -f *.o *.so
diff -ruN /dev/null test/ls2e.c
--- /dev/null	1969-12-31 19:00:00.000000000 -0500
+++ test/ls2e.c	2012-09-16 14:03:03.000000000 -0400
@@ -0,0 +1 @@
+void ls2e() {}
diff -ruN /dev/null test/ls2f.c
--- /dev/null	1969-12-31 19:00:00.000000000 -0500
+++ test/ls2f.c	2012-09-16 14:02:54.000000000 -0400
@@ -0,0 +1 @@
+void ls2f() {}