A bit of aqua, in various stages of its compilation.

Program.aqua

import aqua.std;

public class Program
{
	private static native int putchar(int ch);

	private static void print(char ch)
	{
		putchar(ch);
	}

	private static void main()
	{
		for (int i = 0; i < 100; ++i)
		{
			print('H');
			print('e');
			print('l');
			print('l');
			print('o');
		}
	}
}

result.ll

declare i32 @putchar(i32)


define internal void @class.Program.print.3311(i8* %this, i8 zeroext %ch) {
.entry.4:
	%l.0 = alloca i8
	store i8 %ch, i8* %l.0
	%l.1 = load i8* %l.0
	%l.2 = zext i8 %l.1 to i32
	%l.3 = call i32 @putchar(i32 %l.2)
	ret void
}
define internal void @class.Program.main.0(i8* %this) {
.entry.0:
	%l.0 = alloca i32
	store i32 0, i32* %l.0
	br label %.for.start.1
.for.start.1:
	%l.1 = load i32* %l.0
	%l.2 = icmp slt i32 %l.1, 100
	br i1 %l.2, label %.for.cont.2, label %.for.skip.3
.for.cont.2:
	call void @class.Program.print.3311(i8* undef, i8 72)
	call void @class.Program.print.3311(i8* undef, i8 101)
	call void @class.Program.print.3311(i8* undef, i8 108)
	call void @class.Program.print.3311(i8* undef, i8 108)
	call void @class.Program.print.3311(i8* undef, i8 111)
	%l.3 = load i32* %l.0
	%l.4 = add i32 %l.3, 1
	store i32 %l.4, i32* %l.0
	br label %.for.start.1
.for.skip.3:
	ret void
}
define i32 @main(i32 %argc, i8** %argv) {
	call void @class.Program.main.0(i8* undef)
	ret i32 0
}

result.opt.ll

; ModuleID = 'result.ll'

; Function Attrs: nounwind
declare i32 @putchar(i32) #0

; Function Attrs: nounwind
define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 {
  br label %.for.cont.2.i

.for.cont.2.i:                                    ; preds = %.for.cont.2.i, %0
  %l.45.i = phi i32 [ 0, %0 ], [ %l.4.i, %.for.cont.2.i ]
  %l.3.i.i = tail call i32 @putchar(i32 72) #0
  %l.3.i1.i = tail call i32 @putchar(i32 101) #0
  %l.3.i2.i = tail call i32 @putchar(i32 108) #0
  %l.3.i3.i = tail call i32 @putchar(i32 108) #0
  %l.3.i4.i = tail call i32 @putchar(i32 111) #0
  %l.4.i = add i32 %l.45.i, 1
  %exitcond.i = icmp eq i32 %l.4.i, 100
  br i1 %exitcond.i, label %class.Program.main.0.exit, label %.for.cont.2.i

class.Program.main.0.exit:                        ; preds = %.for.cont.2.i
  ret i32 0
}

attributes #0 = { nounwind }

result.opt.s

	.file	"result.opt.bc"
	.text
	.globl	main
	.align	16, 0x90
	.type	main,@function
main:                                   # @main
# BB#0:
	pushq	%rbx
	movl	$100, %ebx
	.align	16, 0x90
.LBB0_1:                                # %.for.cont.2.i
                                        # =>This Inner Loop Header: Depth=1
	movl	$72, %edi
	callq	putchar
	movl	$101, %edi
	callq	putchar
	movl	$108, %edi
	callq	putchar
	movl	$108, %edi
	callq	putchar
	movl	$111, %edi
	callq	putchar
	decl	%ebx
	jne	.LBB0_1
# BB#2:                                 # %class.Program.main.0.exit
	xorl	%eax, %eax
	popq	%rbx
	ret
.Ltmp0:
	.size	main, .Ltmp0-main


	.section	".note.GNU-stack","",@progbits