On Sat, 2023-07-15 at 13:19 +0300, Alexey Dobriyan wrote:

6.5.7 §3 "Bitwise shift operators" clearly states that

        The type of the result is that of the promoted left operand

All those integer constant suffixes in the right operand are pointless,
delete them.

Indeed. Still this patch is quite invasive and the net benefit looks
quite marginal - if any at all.

Older compiler could adhere to the standard less strictly or macro
expansion - when the left '<<' operand is a macro argument - could be
tricky.

I think we are better of not applying this.

Cheers,

Paolo