Question about an rtx expression.

[Leehod Baruch]

Hello,

Is it true that in a SET, a search for a _use_ of a register
in the LHS should be done only inside a memory address?

Like in this SET:

(set (mem:SI (plus:DI (reg:DI 159)
               (reg/v/f:DI 150 )))
     (subreg/s:SI (reg/v:DI 142 [ j ]) 4)) -1 (nil)

Registers 142, 159 and 150 are used and no register is defined.


Thanks,
Leehod.