On 8/31/23 04:20, Hongyu Wang wrote:
@@ -2542,6 +2542,8 @@ the code of the immediately enclosing expression
(@code{MEM} for the top level
of an address, @code{ADDRESS} for something that occurs in an
@code{address_operand}). @var{index_code} is the code of the corresponding
index expression if @var{outer_code} is @code{PLUS}; @code{SCRATCH} otherwise.
+@code{insn} indicates insn specific base register class should be subset
+of the original base register class.
@end defmac
I'd prefer more general description of 'insn' argument for the macros.
Something like that:
@code{insn} can be used to define an insn-specific base register class.
