Weird corner case in C where inner scope redeclares a var in the outer scope while at the same time trying to reference the outer one.

weird.c

#include <stdio.h>

int main() {
    int n = 8;
    if (n < 10) {
        int n = n * 2;
        printf("%d\n", n);
    }
    printf("%d\n", n);
}

weird.s

	.section	__TEXT,__text,regular,pure_instructions
	.macosx_version_min 10, 13
	.globl	_main                   ## -- Begin function main
	.p2align	4, 0x90
_main:                                  ## @main
## %bb.0:
	pushq	%rbp
	movq	%rsp, %rbp
	subq	$32, %rsp
	movl	$0, -4(%rbp)
	movl	$8, -8(%rbp)
	cmpl	$10, -8(%rbp)
	jge	LBB0_2
## %bb.1:
	leaq	L_.str(%rip), %rdi
	movl	-12(%rbp), %eax
	shll	$1, %eax
	movl	%eax, -12(%rbp)
	movl	-12(%rbp), %esi
	movb	$0, %al
	callq	_printf
	movl	%eax, -16(%rbp)         ## 4-byte Spill
LBB0_2:
	leaq	L_.str(%rip), %rdi
	movl	-8(%rbp), %esi
	movb	$0, %al
	callq	_printf
	movl	-4(%rbp), %esi
	movl	%eax, -20(%rbp)         ## 4-byte Spill
	movl	%esi, %eax
	addq	$32, %rsp
	popq	%rbp
	retq
                                        ## -- End function
	.section	__TEXT,__cstring,cstring_literals
L_.str:                                 ## @.str
	.asciz	"%d\n"


.subsections_via_symbols