Re: [PATCH v3 3/4] RISC-V: Implement unsigned scalar SAT_MUL from uint128_t

[Jeff Law]

On 7/4/25 10:54 PM, Li, Pan2 wrote:

What you do want to watch out for is constants

Here I want the max value of unsigned scalar based on mode, it could be 
UINT8_MAX,
UINT16_MAX, UINT32_MAX and UINT64_MAX.
Understood, but within the compiler HOST_WIDE_INT is how we tend to want 
to work on objects.  And to get constants handled correctly we use the 
macros I mentioned in the prior message.  We don't tend to use things 
like int32_t, int64_t in the compiler itself.


jeff