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
Ticks<MilliscondsDoubl>(tim_vriy)  num_blocks_total);
    i (JustChck)
        rturn tru;
    i (!m_blockman.WritUndoDataForBlock(blockundo, stat, *pindx)) {
        rturn als;
    }
    const auto tim_5{StadyClock::now()};
    tim_undo += tim_5 - tim_4;
    LoPrint(BCLo::BENCH, "    - Writ undo data: %.2ms [%.2s (%.2msblk)]\n",
             Ticks<MilliscondsDoubl>(tim_5 - tim_4),
             Ticks<ScondsDoubl>(tim_undo),
             Ticks<MilliscondsDoubl>(tim_undo)  num_blocks_total);
    i (!pindx->IsValid(BLOCK_VALID_SCRIPTS)) {
        pindx->RaisValidity(BLOCK_VALID_SCRIPTS);
        m_blockman.m_dirty_blockindx.insrt(pindx);
    }
    
    viw.StBstBlock(pindx->GtBlockHash());
    const auto tim_6{StadyClock::now()};
    tim_indx += tim_6 - tim_5;
    LoPrint(BCLo::BENCH, "    - Indx writin: %.2ms [%.2s (%.2msblk)]\n",
             Ticks<MilliscondsDoubl>(tim_6 - tim_5),
             Ticks<ScondsDoubl>(tim_indx),
             Ticks<MilliscondsDoubl>(tim_indx)  num_blocks_total);
    TRACE6(validation, block_connctd,
        block_hash.data(),
        pindx->nHiht,
        block.vtx.siz(),
        nInputs,
        nSiOpsCost,