test.s

一个编译器修改的例子

	.file	"cb.c"
.globl cb_zz
	.data
	.align 4
	.type	cb_zz,@object
	.size	cb_zz,4
cb_zz:
	.long	0
	.section	.rodata
	.align 8
.LC1:
	.long	0
	.long	1076166656
	.align 8
.LC2:
	.long	-1717986918
	.long	1076009369
	.align 8
.LC4:
	.long	1717986918
	.long	1073112678
	.text
.globl cb_foofunc
	.type	cb_foofunc,@function
cb_foofunc:
	pushl	%ebp
	movl	%esp, %ebp
	subl	$40, %esp
	movl	8(%ebp), %eax
	movl	12(%ebp), %edx
	movl	%eax, -8(%ebp)
	movl	%edx, -4(%ebp)
	movl	16(%ebp), %eax
	movl	20(%ebp), %edx
	movl	%eax, -16(%ebp)
	movl	%edx, -12(%ebp)
	movl	24(%ebp), %eax
	movl	28(%ebp), %edx
	movl	%eax, -24(%ebp)
	movl	%edx, -20(%ebp)
	fldl	-8(%ebp)
	fldz
	fucompp
	fnstsw	%ax
	testb	$69, %ah
	je	.L3
	jmp	.L2
.L3:
	fldl	-8(%ebp)
	fldl	.LC1
	faddp	%st, %st(1)
	faddl	-16(%ebp)
	faddl	-24(%ebp)
	fstpl	-32(%ebp)
	jmp	.L1
.L2:
	subl	$8, %esp
	fldl	-24(%ebp)
	fldl	.LC2
	fsubrp	%st, %st(1)
	leal	-8(%esp), %esp
	fstpl	(%esp)
	fldl	-16(%ebp)
	fld1
	faddp	%st, %st(1)
	leal	-8(%esp), %esp
	fstpl	(%esp)
	fldl	-8(%ebp)
	fldl	.LC4
	fsubrp	%st, %st(1)
	leal	-8(%esp), %esp
	fstpl	(%esp)
	call	cb_foofunc
	addl	$32, %esp
	fstpl	-32(%ebp)
.L1:
	fldl	-32(%ebp)
	leave
	ret
.Lfe1:
	.size	cb_foofunc,.Lfe1-cb_foofunc
	.section	.rodata
	.align 8
.LC7:
	.long	-1717986918
	.long	1069128089
	.align 8
.LC8:
	.long	0
	.long	1076101120
	.text
.globl cb_main
	.type	cb_main,@function
cb_main:
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%edi
	subl	$52, %esp
	leal	-40(%ebp), %edi
	cld
	movl	$0, %edx
	movl	$6, %eax
	movl	%eax, %ecx
	movl	%edx, %eax
	rep
	stosl
	movl	$0, -44(%ebp)
	movb	$0, -45(%ebp)
	subl	$8, %esp
	pushl	$8
	pushl	$5
	call	new_array
	addl	$16, %esp
	movl	%eax, -44(%ebp)
	subl	$4, %esp
	pushl	$0
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$16, %esp
	movl	$0, (%eax)
	movl	$0, 4(%eax)
	subl	$4, %esp
	pushl	$1
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$16, %esp
	movl	$0, (%eax)
	movl	$1072693248, 4(%eax)
	subl	$4, %esp
	pushl	$2
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$16, %esp
	movl	$0, (%eax)
	movl	$1073741824, 4(%eax)
	subl	$4, %esp
	pushl	$3
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$16, %esp
	movl	$0, (%eax)
	movl	$1074266112, 4(%eax)
	subl	$4, %esp
	pushl	$4
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$16, %esp
	movl	$0, (%eax)
	movl	$1074790400, 4(%eax)
	subl	$8, %esp
	subl	$12, %esp
	pushl	$0
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$24, %esp
	pushl	4(%eax)
	pushl	(%eax)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings
	call	cb_WriteString
	addl	$16, %esp
	subl	$8, %esp
	subl	$12, %esp
	pushl	$1
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$24, %esp
	pushl	4(%eax)
	pushl	(%eax)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+8
	call	cb_WriteString
	addl	$16, %esp
	subl	$8, %esp
	subl	$12, %esp
	pushl	$2
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$24, %esp
	pushl	4(%eax)
	pushl	(%eax)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+16
	call	cb_WriteString
	addl	$16, %esp
	subl	$8, %esp
	subl	$12, %esp
	pushl	$3
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$24, %esp
	pushl	4(%eax)
	pushl	(%eax)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+24
	call	cb_WriteString
	addl	$16, %esp
	subl	$8, %esp
	subl	$12, %esp
	pushl	$4
	pushl	$8
	pushl	-44(%ebp)
	call	array_index
	addl	$24, %esp
	pushl	4(%eax)
	pushl	(%eax)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+32
	call	cb_WriteString
	addl	$16, %esp
	movl	$1, -40(%ebp)
	movl	$10, -36(%ebp)
	movl	$0, -32(%ebp)
	movl	$-1717986918, -28(%ebp)
	movl	$1076140441, -24(%ebp)
	movl	$2, -20(%ebp)
	movl	$1, -40(%ebp)
	movl	-36(%ebp), %eax
	movl	%eax, -52(%ebp)
	movl	-20(%ebp), %eax
	movl	%eax, -56(%ebp)
.L5:
	cmpl	$0, -56(%ebp)
	jns	.L9
	movl	-40(%ebp), %eax
	cmpl	-52(%ebp), %eax
	jge	.L8
	jmp	.L11
.L9:
	movl	-40(%ebp), %eax
	cmpl	-52(%ebp), %eax
	jle	.L8
	jmp	.L11
.L8:
	fldl	-28(%ebp)
	fldl	.LC7
	faddp	%st, %st(1)
	fstpl	-28(%ebp)
	subl	$12, %esp
	pushl	-40(%ebp)
	call	cb_WriteInt
	addl	$16, %esp
	subl	$8, %esp
	pushl	-24(%ebp)
	pushl	-28(%ebp)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+40
	call	cb_WriteString
	addl	$16, %esp
	movl	-56(%ebp), %edx
	leal	-40(%ebp), %eax
	addl	%edx, (%eax)
	jmp	.L5
.L11:
	fldl	-28(%ebp)
	fldl	.LC7
	fsubrp	%st, %st(1)
	fstpl	-28(%ebp)
	subl	$8, %esp
	pushl	-24(%ebp)
	pushl	-28(%ebp)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+48
	call	cb_WriteString
	addl	$16, %esp
	fldl	-28(%ebp)
	fldl	.LC8
	fucompp
	fnstsw	%ax
	testb	$5, %ah
	je	.L12
	jmp	.L11
.L12:
	movl	$0, -28(%ebp)
	movl	$1076101120, -24(%ebp)
	fldl	-28(%ebp)
	fldl	.LC8
	fxch	%st(1)
	fucompp
	fnstsw	%ax
	andb	$69, %ah
	cmpb	$64, %ah
	je	.L17
	jmp	.L16
.L17:
	subl	$12, %esp
	pushl	strings+56
	call	cb_WriteString
	addl	$16, %esp
	jmp	.L18
.L16:
	subl	$12, %esp
	pushl	strings+64
	call	cb_WriteString
	addl	$16, %esp
.L18:
	nop
.L19:
	subl	$12, %esp
	pushl	strings+72
	call	cb_WriteString
	addl	$16, %esp
	leal	-40(%ebp), %eax
	incl	(%eax)
	fldl	-28(%ebp)
	fldl	.LC8
	fxch	%st(1)
	fucompp
	fnstsw	%ax
	andb	$69, %ah
	xorb	$64, %ah
	jne	.L24
	jmp	.L20
.L24:
	cmpl	$20, -40(%ebp)
	jle	.L19
.L20:
	nop
.L25:
	fldl	-28(%ebp)
	fldl	.LC8
	fxch	%st(1)
	fucompp
	fnstsw	%ax
	andb	$69, %ah
	cmpb	$64, %ah
	je	.L29
	jmp	.L26
.L29:
	cmpl	$29, -40(%ebp)
	jle	.L27
	jmp	.L26
.L27:
	subl	$12, %esp
	pushl	-40(%ebp)
	call	cb_WriteInt
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+80
	call	cb_WriteString
	addl	$16, %esp
	subl	$8, %esp
	pushl	-24(%ebp)
	pushl	-28(%ebp)
	call	cb_WriteReal
	addl	$16, %esp
	subl	$12, %esp
	pushl	strings+88
	call	cb_WriteString
	addl	$16, %esp
	leal	-40(%ebp), %eax
	incl	(%eax)
	cmpl	$24, -40(%ebp)
	jle	.L25
	movl	$0, -28(%ebp)
	movl	$1076363264, -24(%ebp)
	jmp	.L25
.L26:
	subl	$12, %esp
	pushl	-44(%ebp)
	call	delete_array
	addl	$16, %esp
	movb	$107, -45(%ebp)
	subl	$12, %esp
	movsbl	-45(%ebp),%eax
	pushl	%eax
	call	cb_WriteChar
	addl	$16, %esp
	movl	$0, %eax
	movl	-4(%ebp), %edi
	leave
	ret
.Lfe2:
	.size	cb_main,.Lfe2-cb_main
	.section	.rodata
.LC11:
	.string	"\n"
.LC12:
	.string	"ZERO\n"
.LC13:
	.string	"BAH!\n"
.LC14:
	.string	"hmmmm??\n"
.LC15:
	.string	" "
.globl strings
	.data
	.align 32
	.type	strings,@object
	.size	strings,104
strings:
	.long	0
	.long	.LC11
	.long	0
	.long	.LC11
	.long	0
	.long	.LC11
	.long	0
	.long	.LC11
	.long	0
	.long	.LC11
	.long	0
	.long	.LC11
	.long	0
	.long	.LC11
	.long	0
	.long	.LC12
	.long	0
	.long	.LC13
	.long	0
	.long	.LC14
	.long	0
	.long	.LC15
	.long	0
	.long	.LC11
	.long	0
	.long	0
	.ident	"GCC: (GNU) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)"