Hello world x5 in C, assembly (-O0) and optimized assembly (-O3) from gcc

hw.c

#include <stdio.h>

void hello(int i);

int main(int argc, char * argv[])
{
	hello(5);
}

void hello(int i)
{
	int j;
	for(j=0;j<i;j++) 	
		printf("Hello, world!\n");
}

hw.s

	.file	"hw2.c"
	.def	___main;	.scl	2;	.type	32;	.endef
	.text
.globl _main
	.def	_main;	.scl	2;	.type	32;	.endef
_main:
	pushl	%ebp
	movl	%esp, %ebp
	andl	$-16, %esp
	subl	$16, %esp
	call	___main
	movl	$5, (%esp)
	call	_hello
	leave
	ret
	.section .rdata,"dr"
LC0:
	.ascii "Hello, world!\0"
	.text
.globl _hello
	.def	_hello;	.scl	2;	.type	32;	.endef
_hello:
	pushl	%ebp
	movl	%esp, %ebp
	subl	$40, %esp
	movl	$0, -12(%ebp)
	jmp	L3
L4:
	movl	$LC0, (%esp)
	call	_puts
	incl	-12(%ebp)
L3:
	movl	-12(%ebp), %eax
	cmpl	8(%ebp), %eax
	jl	L4
	leave
	ret
	.def	_puts;	.scl	2;	.type	32;	.endef

hwo3.s

	.file	"hw2.c"
	.def	___main;	.scl	2;	.type	32;	.endef
	.section .rdata,"dr"
LC0:
	.ascii "Hello, world!\0"
	.text
	.p2align 2,,3
.globl _main
	.def	_main;	.scl	2;	.type	32;	.endef
_main:
	pushl	%ebp
	movl	%esp, %ebp
	andl	$-16, %esp
	subl	$16, %esp
	call	___main
	movl	$LC0, (%esp)
	call	_puts
	movl	$LC0, (%esp)
	call	_puts
	movl	$LC0, (%esp)
	call	_puts
	movl	$LC0, (%esp)
	call	_puts
	movl	$LC0, (%esp)
	call	_puts
	leave
	ret
	.p2align 2,,3
.globl _hello
	.def	_hello;	.scl	2;	.type	32;	.endef
_hello:
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%esi
	pushl	%ebx
	subl	$16, %esp
	movl	8(%ebp), %esi
	testl	%esi, %esi
	jle	L2
	xorl	%ebx, %ebx
	.p2align 2,,3
L4:
	movl	$LC0, (%esp)
	call	_puts
	incl	%ebx
	cmpl	%ebx, %esi
	jg	L4
L2:
	addl	$16, %esp
	popl	%ebx
	popl	%esi
	leave
	ret
	.def	_puts;	.scl	2;	.type	32;	.endef