C code x86 asm MIPS asm x86 asm -O1 MIPS asm -O1 x86 asm -O4 MIPS asm -O4
#include 
//label: for(i = 0; i < 10; i++) {s...
int main()
{
  int sum=0, i;
  for(i = 0; i < 10; i++) 
  {
    sum+=i;
  }
  return sum;
}
	.file	"14.c"
	.text
.globl main
	.type	main, @function
main:
	leal	4(%esp), %ecx
	andl	$-16, %esp
	pushl	-4(%ecx)
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%ecx
	subl	$16, %esp
	movl	$0, -12(%ebp)
	movl	$0, -8(%ebp)
	jmp	.L2
.L3:
	movl	-8(%ebp), %eax
	addl	%eax, -12(%ebp)
	addl	$1, -8(%ebp)
.L2:
	cmpl	$9, -8(%ebp)
	jle	.L3
	movl	-12(%ebp), %eax
	addl	$16, %esp
	popl	%ecx
	popl	%ebp
	leal	-4(%ecx), %esp
	ret
	.size	main, .-main
	.ident	"GCC: (GNU) 4.1.2 20080704 ...
	.section	.note.GNU-stack,"",@progb...
	.file	1 "14.c"
	.section .mdebug.abi32
	.previous
	.abicalls
	.text
	.align	2
	.globl	main
	.ent	main
	.type	main, @function
main:
	.frame	$fp,24,$31		# vars= 8, regs...
	.mask	0x40000000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.cpload	$25
	.set	reorder
	addiu	$sp,$sp,-24
	sw	$fp,16($sp)
	move	$fp,$sp
	sw	$0,8($fp)
	sw	$0,12($fp)
$L2:
	lw	$2,12($fp)
	slt	$2,$2,10
	beq	$2,$0,$L3
	lw	$3,8($fp)
	lw	$2,12($fp)
	addu	$2,$3,$2
	sw	$2,8($fp)
	lw	$2,12($fp)
	addiu	$2,$2,1
	sw	$2,12($fp)
	b	$L2
$L3:
	lw	$2,8($fp)
	move	$sp,$fp
	lw	$fp,16($sp)
	addiu	$sp,$sp,24
	j	$31
	.end	main
	.ident	"GCC: (GNU) 3.4.5"
	.file	"14.c"
	.text
.globl main
	.type	main, @function
main:
	leal	4(%esp), %ecx
	andl	$-16, %esp
	pushl	-4(%ecx)
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%ecx
	movl	$45, %eax
	popl	%ecx
	popl	%ebp
	leal	-4(%ecx), %esp
	ret
	.size	main, .-main
	.ident	"GCC: (GNU) 4.1.2 20080704 ...
	.section	.note.GNU-stack,"",@progb...
	.file	1 "14.c"
	.section .mdebug.abi32
	.previous
	.abicalls
	.text
	.align	2
	.globl	main
	.ent	main
	.type	main, @function
main:
	.frame	$sp,0,$31		# vars= 0, regs=...
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.cpload	$25
	.set	reorder
	move	$4,$0
	move	$3,$0
	addu	$4,$4,$3
$L8:
	addiu	$3,$3,1
	slt	$2,$3,10
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L8
	addu	$4,$4,$3
	.set	macro
	.set	reorder

	subu	$4,$4,$3
	.set	noreorder
	.set	nomacro
	j	$31
	move	$2,$4
	.set	macro
	.set	reorder

	.end	main
	.ident	"GCC: (GNU) 3.4.5"
	.file	"14.c"
	.text
	.p2align 4,,15
.globl main
	.type	main, @function
main:
	leal	4(%esp), %ecx
	andl	$-16, %esp
	pushl	-4(%ecx)
	movl	$45, %eax
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%ecx
	popl	%ecx
	popl	%ebp
	leal	-4(%ecx), %esp
	ret
	.size	main, .-main
	.ident	"GCC: (GNU) 4.1.2 20080704 ...
	.section	.note.GNU-stack,"",@progb...
	.file	1 "14.c"
	.section .mdebug.abi32
	.previous
	.abicalls
	.text
	.align	2
	.globl	main
	.ent	main
	.type	main, @function
main:
	.frame	$sp,0,$31		# vars= 0, regs=...
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	move	$4,$0
	move	$3,$0
	addu	$4,$4,$3
$L11:
	addiu	$3,$3,1
	slt	$2,$3,10
	bne	$2,$0,$L11
	addu	$4,$4,$3

	subu	$4,$4,$3
	j	$31
	move	$2,$4

	.set	macro
	.set	reorder
	.end	main
	.ident	"GCC: (GNU) 3.4.5"