Stack alignment bug in Xcode 11 with AVX optimizations

xcode-11b6.c

#include <fcntl.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

typedef struct {
    char  d[16];
    void *e;
    struct { char b[5536]; } f;
} i;

void g(void) {
    struct addrinfo hints, *k;
    memset(&hints, 0, sizeof hints);
    getaddrinfo(NULL, NULL, &hints, &k);
}

int main(void) {
    puts("Hello world");
    fflush(stdout);
    close(open("/dev/null", O_RDONLY));
    i context;
    context.e = open;
    printf("%p\n", context.d);
    g();
    return 0;
}