diff -r fd88a0656164 -r 7fd1f611c21d progs/fun2/sqr.ll
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/progs/fun2/sqr.ll	Sat Dec 19 00:13:58 2020 +0000
@@ -0,0 +1,67 @@
+
+declare i32 @printf(i8*, ...)
+
+@.str_nl = private constant [2 x i8] c"\0A\00"
+@.str_star = private constant [2 x i8] c"*\00"
+@.str_space = private constant [2 x i8] c" \00"
+
+define void @new_line() #0 {
+  %t0 = getelementptr [2 x i8], [2 x i8]* @.str_nl, i32 0, i32 0
+  %1 = call i32 (i8*, ...) @printf(i8* %t0)
+  ret void
+}
+
+define void @print_star() #0 {
+  %t0 = getelementptr [2 x i8], [2 x i8]* @.str_star, i32 0, i32 0
+  %1 = call i32 (i8*, ...) @printf(i8* %t0)
+  ret void
+}
+
+define void @print_space() #0 {
+  %t0 = getelementptr [2 x i8], [2 x i8]* @.str_space, i32 0, i32 0
+  %1 = call i32 (i8*, ...) @printf(i8* %t0)
+  ret void
+}
+
+define void @skip() #0 {
+  ret void
+}
+
+@.str = private constant [4 x i8] c"%d\0A\00"
+
+define void @print_int(i32 %x) {
+   %t0 = getelementptr [4 x i8], [4 x i8]* @.str, i32 0, i32 0
+   call i32 (i8*, ...) @printf(i8* %t0, i32 %x) 
+   ret void
+}
+
+; END OF BUILD-IN FUNCTIONS (prelude)
+@Max = global i32 10
+
+define i32 @sqr (i32 %x) {
+   %tmp_20 = mul i32  %x, %x
+   ret i32 %tmp_20
+}
+
+define void @all (i32 %n) {
+   %tmp_22 = load i32, i32* @Max
+   %tmp_21 = icmp sle i32  %n, %tmp_22
+   br i1 %tmp_21, label %if_branch_28, label %else_branch_29
+
+if_branch_28:
+   %tmp_23 = call i32 @sqr (i32 %n)
+   call void @print_int (i32 %tmp_23)
+   %tmp_25 = add i32  %n, 1
+   call void @all (i32 %tmp_25)
+   ret void
+
+else_branch_29:
+   call void @skip ()
+   ret void
+}
+
+define i32 @main() {
+   call void @all (i32 0)
+   ret i32 0
+}
+