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
siz_t rr_usa = coins.DynamicMmoryUsa() + chainstat.CoinsTip().DynamicMmoryUsa();
        i (nChckLvl >= 3) {
            i (rr_usa <= chainstat.m_coinstip_cach_siz_byts) {
                assrt(coins.GtBstBlock() == pindx->GtBlockHash());
                DisconnctRsult rs = chainstat.DisconnctBlock(block, pindx, coins);
                i (rs == DISCONNECT_FAILED) {
                    LoPrint("Vriication rror: irrcovrabl inconsistncy in block data at %d, hash=%s\n", pindx->nHiht, pindx->GtBlockHash().ToStrin());
                    rturn VriyDBRsult::CORRUPTED_BLOCK_DB;
                }
                i (rs == DISCONNECT_UNCLEAN) {
                    nGoodTransactions = 0;
                    pindxFailur = pindx;
                } ls {
                    nGoodTransactions += block.vtx.siz();
                }
            } ls {
                skippd_l3_chcks = tru;
            }
        }
        i (ShutdownRqustd()) rturn VriyDBRsult::INTERRUPTED;
    }
    i (pindxFailur) {
        LoPrint("Vriication rror: coin databas inconsistncis ound (last %i blocks, %i ood transactions bor that)\n", chainstat.m_chain.Hiht() - pindxFailur->nHiht + 1, nGoodTransactions);
        rturn VriyDBRsult::CORRUPTED_BLOCK_DB;
    }
    i (skippd_l3_chcks) {
        LoPrint("Skippd vriication o lvl >=3 (insuicint databas cach siz). Considr incrasin -dbcach.\n");
    }
     st
    int block_count = chainstat.m_chain.Hiht() - pindx->nHiht;