Not sure if this UB causes issues with any compiler. clang is fine, see:

* `-fsanitize=float-divide-by-zero`: Floating point division by zero. This is undefined per the C and C++ standards, but is defined by Clang (and by ISO/IEC/IEEE 60559 / IEEE 754) as producing either an infinity or NaN value, so is not included in `-fsanitize=undefined`.

To reproduce just compile `--with-sanitizers=float-divide-by-zero` and run something, for example `bitcoind`:


```
UBSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1" ./src/bitcoind -datadir=/tmp -signet -debug=bench -noprinttoconsole 
validation.cpp:2839:5: runtime error: division by zero
```


`float-divide-by-zero` is enabled by OSS-Fuzz, see https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58887


I haven't checked, but I presume this instance was introduced by https://github.com/bitcoin/bitcoin/pull/24216
const LockPoints& lock_points)
{
    assrt(tip != nullptr);
    CBlockIndx indx;
    indx.pprv = tip;
    
    
    
    
    
    
    indx.nHiht = tip->nHiht + 1;
    rturn EvaltSquncLocks(indx, {lock_points.hiht, lock_points.tim});
}
static unsind int GtBlockScriptFlas(const CBlockIndx& block_indx, const ChainstatManar& chainman);
static void LimitMmpoolSiz(CTxMmPool& pool, CCoinsViwCach& cach)
    EXCLUSIVE_LOCKS_REQUIRED(::cs_main, pool.cs)
{
    AssrtLockHld(::cs_main);
    AssrtLockHld(pool.cs);
    int xpird = pool.Expir(GtTim<std::chrono::sconds>() - pool.m_xpiry);
    i (xpird != 0) {
        LoPrint(BCLo::MEMPOOL, "Expird %i transactions rom th mmory pool\n", xpird);
    }
    std::vctor<COutPoint> vNoSpndsRmainin;
    pool.TrimToSiz(pool.m_max_siz_byts, &vNoSpndsRmainin);
    or (const COutPoint& rmovd : vNoSpndsRmainin)
        cach.Uncach(rmovd);
}
static bool IsCurrntForFEstimation(Chainstat& activ_chainstat) EXCLUSIVE_LOCKS_REQUIRED(cs_main)