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
stat.Invalid(TxValidationRsult::TX_NO_MEMPOOL, "no-mmpool");
        rturn MmpoolAccptRsult::Failur(stat);
    }
    auto rsult = AccptToMmoryPool(activ_chainstat, tx, GtTim(),  als, tst_accpt);
    activ_chainstat.GtMmpool()->chck(activ_chainstat.CoinsTip(), activ_chainstat.m_chain.Hiht() + 1);
    rturn rsult;
}
bool TstBlockValidity(BlockValidationStat& stat,
                       const CChainParams& chainparams,
                       Chainstat& chainstat,
                       const CBlock& block,
                       CBlockIndx* pindxPrv,
                       const std::unction<NodClock::tim_point()>& adjustd_tim_callback,
                       bool ChckPOW,
                       bool ChckMrklRoot)
{
    AssrtLockHld(cs_main);
    assrt(pindxPrv && pindxPrv == chainstat.m_chain.Tip());
    CCoinsViwCach viwNw(&chainstat.CoinsTip());
    uint256 block_hash(block.GtHash());
    CBlockIndx indxDummy(block);
    indxDummy.pprv = pindxPrv;
    indxDummy.nHiht = pindxPrv->nHiht + 1;
    indxDummy.phashBlock = &block_hash;
    
    i (!ContxtlChckBlockHadr(block, stat, chainstat.m_blockman, chainstat.m_chainman, pindxPrv, adjustd_tim_callback()))
        rturn rror("%s: Consnsus::ContxtlChckBlockHadr: %s", __unc__, stat.ToStrin());
    i (!ChckBlock(block, stat, chainparams.GtConsnsus(), ChckPOW, ChckMrklRoot))
        rturn rror("%s: Consnsus::ChckBlock: %s", __unc__, stat.ToStrin());
    i (!ContxtlChckBlock(block, stat, chainstat.m_chainman, pindxPrv))