最適化3

gistfile1.txt

int main(){
    int i = 0;
    int n = rand();
    while(i++<n){
        printf("%d",i);
    }
    return 0;
}

	.section	__TEXT,__text,regular,pure_instructions
	.globl	_main
	.align	4, 0x90
_main:                                  ## @main
	.cfi_startproc
## BB#0:
	pushq	%rbp
Ltmp3:
	.cfi_def_cfa_offset 16
Ltmp4:
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
Ltmp5:
	.cfi_def_cfa_register %rbp
	pushq	%r15
	pushq	%r14
	pushq	%rbx
	pushq	%rax
Ltmp6:
	.cfi_offset %rbx, -40
Ltmp7:
	.cfi_offset %r14, -32
Ltmp8:
	.cfi_offset %r15, -24
	xorl	%ebx, %ebx
	xorl	%eax, %eax
	callq	_rand
	movl	%eax, %r14d
	testl	%r14d, %r14d
	jle	LBB0_3
## BB#1:
	leaq	L_.str(%rip), %r15
	.align	4, 0x90
LBB0_2:                                 ## %.lr.ph
                                        ## =>This Inner Loop Header: Depth=1
	incl	%ebx
	xorl	%eax, %eax
	movq	%r15, %rdi
	movl	%ebx, %esi
	callq	_printf
	cmpl	%ebx, %r14d
	jne	LBB0_2
LBB0_3:                                 ## %._crit_edge
	xorl	%eax, %eax
	addq	$8, %rsp
	popq	%rbx
	popq	%r14
	popq	%r15
	popq	%rbp
	retq
	.cfi_endproc

	.section	__TEXT,__cstring,cstring_literals
L_.str:                                 ## @.str
	.asciz	"%d"


.subsections_via_symbols
int main(){
    int i;
    int n = rand();
    for(i=0;i<n;i++){
        printf("%d",i);
    }
    return 0;
}

	.section	__TEXT,__text,regular,pure_instructions
	.globl	_main
	.align	4, 0x90
_main:                                  ## @main
	.cfi_startproc
## BB#0:
	pushq	%rbp
Ltmp3:
	.cfi_def_cfa_offset 16
Ltmp4:
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
Ltmp5:
	.cfi_def_cfa_register %rbp
	pushq	%r15
	pushq	%r14
	pushq	%rbx
	pushq	%rax
Ltmp6:
	.cfi_offset %rbx, -40
Ltmp7:
	.cfi_offset %r14, -32
Ltmp8:
	.cfi_offset %r15, -24
	xorl	%ebx, %ebx
	xorl	%eax, %eax
	callq	_rand
	movl	%eax, %r14d
	testl	%r14d, %r14d
	jle	LBB0_3
## BB#1:
	leaq	L_.str(%rip), %r15
	.align	4, 0x90
LBB0_2:                                 ## %.lr.ph
                                        ## =>This Inner Loop Header: Depth=1
	xorl	%eax, %eax
	movq	%r15, %rdi
	movl	%ebx, %esi
	callq	_printf
	incl	%ebx
	cmpl	%ebx, %r14d
	jne	LBB0_2
LBB0_3:                                 ## %._crit_edge
	xorl	%eax, %eax
	addq	$8, %rsp
	popq	%rbx
	popq	%r14
	popq	%r15
	popq	%rbp
	retq
	.cfi_endproc

	.section	__TEXT,__cstring,cstring_literals
L_.str:                                 ## @.str
	.asciz	"%d"


.subsections_via_symbols