Update IR test for modern language and toolchain

.gitignore

@@ -0,0 +1 @@
+/ir-test/ir-test

ir-test/Makefile

@@ -3,11 +3,11 @@ PROG := ir-test
 
 all: clean $(PROG)
 
-$(PROG): $(PROG).bc
-	llvm-ld -o $@ -native $<
+$(PROG): $(PROG).o
+	gcc -o $@ $<
 
-%.bc: %.ll
-	llvm-as $<
+%.o: %.ll
+	clang -c -o $@ $<
 
 clean:
-	rm -f *~ *.bc $(PROG)
+	rm -f *~ *.o $(PROG)

ir-test/ir-test.ll

@@ -1,11 +1,9 @@
 
-@str = internal constant [12 x i8] c"hello world\00"
+@str = private unnamed_addr constant [13 x i8] c"hello world\0A\00"
 
-declare i32 @puts(i8 *)
+declare i32 @puts(ptr nocapture) nounwind
 
 define i32 @main() {
-    %cast210 = getelementptr [12 x i8]* @str, i64 0, i64 0
-
-    call i32 @puts(i8 * %cast210)
+    call i32 @puts(ptr @str)
     ret i32 0
 }