================ @@ -4213,7 +4213,7 @@ such as ``unsigned __int128`` and C23 ``unsigned _BitInt(N)``. ``__builtin_clzg`` (respectively ``__builtin_ctzg``) returns the number of leading (respectively trailing) 0 bits in the first argument. The first argument -can be of any unsigned integer type. +can be of any unsigned integer type or fixed boolean vector. ---------------- jhuber6 wrote:
These boolean vectors basically go back and forth between an integer and a vector of `i1` values in the IR. It would have the same behavior as if the user did `__builtin_bit_cast(uint16_t, v)` or similar. So, leading zeroes would be the ones with 'higher' bit counts, trailing would be lower, same as saying `bitfield >> n & 1` to get the `nth` bit. https://github.com/llvm/llvm-project/pull/154203 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
