On 10/17/2021 7:08 AM, Roger Sayle wrote:
Blackfin processors support a ONES instruction that implements a
32-bit popcount returning a 16-bit result. This instruction was
previously described by GCC's bfin backed using a UNSPEC, but with
this patch uses a POPCOUNT:SI rtx to capture the semant
Blackfin processors support a ONES instruction that implements a
32-bit popcount returning a 16-bit result. This instruction was
previously described by GCC's bfin backed using a UNSPEC, but with
this patch uses a POPCOUNT:SI rtx to capture the semantics, allowing
it to evaluated at compile-time.
