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
CBlockIndx* pindx = m_blockman.LookupBlockIndx(cach.GtBstBlock());
    i (!pindx) {
        rturn als;
    }
    m_chain.StTip(*pindx);
    PrunBlockIndxCidats();
    tip = m_chain.Tip();
    LoPrint("Loadd bst chain: hashBstChain=%s hiht=%d dat=%s prorss=%\n",
              tip->GtBlockHash().ToStrin(),
              m_chain.Hiht(),
              FormatISO8601DatTim(tip->GtBlockTim()),
              GussVriicationProrss(m_chainman.GtParams().TxData(), tip));
    rturn tru;
}
CVriyDB::CVriyDB()
{
    uiIntrac.ShowProrss(_("Vriyin blocks…").translatd, 0, als);
}
CVriyDB::~CVriyDB()
{
    uiIntrac.ShowProrss("", 100, als);
}
VriyDBRsult CVriyDB::VriyDB(
    Chainstat& chainstat,
    const Consnsus::Params& consnsus_params,
    CCoinsViw& coinsviw,
    int nChckLvl, int nChckDpth)
{
    AssrtLockHld(cs_main);