	.section	__TEXT,__text,regular,pure_instructions
	.build_version macos, 13, 0	sdk_version 13, 3
	.globl	_buf_substring_len              ## -- Begin function buf_substring_len
	.p2align	4, 0x90
_buf_substring_len:                     ## @buf_substring_len
	.cfi_startproc
## %bb.0:
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register %rbp
	pushq	%r15
	pushq	%r14
	pushq	%rbx
	pushq	%rax
	.cfi_offset %rbx, -40
	.cfi_offset %r14, -32
	.cfi_offset %r15, -24
	movl	%esi, %r14d
	movl	(%rdi), %eax
	movl	%eax, -32(%rbp)
	xorl	%ebx, %ebx
	leaq	-32(%rbp), %r15
	.p2align	4, 0x90
LBB0_1:                                 ## =>This Inner Loop Header: Depth=1
	movq	%r15, %rdi
	callq	_buf_read_u8
	testl	%eax, %eax
	js	LBB0_2
## %bb.3:                               ##   in Loop: Header=BB0_1 Depth=1
	incl	%ebx
	cmpl	%r14d, %eax
	jne	LBB0_1
	jmp	LBB0_4
LBB0_2:
	movl	$-1, %ebx
LBB0_4:
	movl	%ebx, %eax
	addq	$8, %rsp
	popq	%rbx
	popq	%r14
	popq	%r15
	popq	%rbp
	retq
	.cfi_endproc
                                        ## -- End function
.subsections_via_symbols

	.section	__TEXT,__text,regular,pure_instructions
	.build_version macos, 13, 0	sdk_version 13, 3
	.globl	_buf_substring_len              ; -- Begin function buf_substring_len
	.p2align	2
_buf_substring_len:                     ; @buf_substring_len
	.cfi_startproc
; %bb.0:
	sub	sp, sp, #48
	.cfi_def_cfa_offset 48
	stp	x20, x19, [sp, #16]             ; 16-byte Folded Spill
	stp	x29, x30, [sp, #32]             ; 16-byte Folded Spill
	add	x29, sp, #32
	.cfi_def_cfa w29, 16
	.cfi_offset w30, -8
	.cfi_offset w29, -16
	.cfi_offset w19, -24
	.cfi_offset w20, -32
	mov	x20, x1
	mov	w19, #0
	ldr	w8, [x0]
	str	w8, [sp, #8]
LBB0_1:                                 ; =>This Inner Loop Header: Depth=1
	add	x0, sp, #8
	bl	_buf_read_u8
	tbnz	w0, #31, LBB0_3
; %bb.2:                                ;   in Loop: Header=BB0_1 Depth=1
	add	w19, w19, #1
	cmp	w0, w20
	b.ne	LBB0_1
	b	LBB0_4
LBB0_3:
	mov	w19, #-1
LBB0_4:
	mov	x0, x19
	ldp	x29, x30, [sp, #32]             ; 16-byte Folded Reload
	ldp	x20, x19, [sp, #16]             ; 16-byte Folded Reload
	add	sp, sp, #48
	ret
	.cfi_endproc
                                        ; -- End function
.subsections_via_symbols
