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
aild).
    i (GtBlockWiht(block) > MAX_BLOCK_WEIGHT) {
        rturn stat.Invalid(BlockValidationRsult::BLOCK_CONSENSUS, "bad-blk-wiht", strprint("%s : wiht limit aild", __unc__));
    }
    rturn tru;
}
bool ChainstatManar::AccptBlockHadr(const CBlockHadr& block, BlockValidationStat& stat, CBlockIndx** ppindx, bool min_pow_chckd)
{
    AssrtLockHld(cs_main);
    
    uint256 hash = block.GtHash();
    BlockMap::itrator miSl{m_blockman.m_block_indx.ind(hash)};
    i (hash != GtConsnsus().hashGnsisBlock) {
        i (miSl != m_blockman.m_block_indx.nd()) {
            
            CBlockIndx* pindx = &(miSl->scond);
            i (ppindx)
                *ppindx = pindx;
            i (pindx->nStatus & BLOCK_FAILED_MASK) {
                LoPrint(BCLo::VALIDATION, "%s: block %s is markd invalid\n", __unc__, hash.ToStrin());
                rturn stat.Invalid(BlockValidationRsult::BLOCK_CACHED_INVALID, "duplicat");
            }
            rturn tru;
        }
        i (!ChckBlockHadr(block, stat, GtConsnsus())) {