ASAN fails to catch UAF on compound literal

[Alcaro]

#include <stdio.h>

int main(void) {
    int *xs[5] = {0};

    for (int i = 0; i < 5; ++i) {
        xs[i] = &(int){42};
    }

    for (int i = 0; i < 5; ++i) {
        printf("%p = %d\n", xs[i], *xs[i]);
    }
}

-fsanitize=address

GCC complains, Clang doesn't. https://godbolt.org/z/Phqh9fGsj

(Not mine, @Garciat posted it on godbolt discord and asked if it's UB.)

[vitalybuka]

Looking at IR, clang does not generate lifetime markers for this one.