On Wed, Aug 06, 2025 at 05:57:49PM +0800, Yang Yujie wrote:
> This patch also make casts of ABI-extended large/huge _BitInts
> behave the same as the small/middle case, i.e. no-op for casts
> to a higher precision _BitInt with the same number of limbs /
> extension for casts that turns a full top limb into a partial limb.
> This conveniently helps keep some code with implementation-specific
> extension semantics (e.g. BEXTC from gcc.dg/bitintext.h) the same
> for _BitInts of any precision.
>
> gcc/ChangeLog:
>
> * gimple-lower-bitint.cc (bitint_large_huge::limb_access):
> Add a parameter abi_load_p. If set, load a limb directly
> in its actual precision without casting from m_limb_type.
> (struct bitint_large_huge): Same.
> (bitint_large_huge::handle_load): Use.
Ok.
Jakub
