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From: William Tambe <tambewilliam@gmail.com>
Date: Mon, 20 Apr 2020 22:38:53 -0400
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Subject: Is there something similar to use_reg() that can be used with
 emit_insn()
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Is there something similar to use_reg() that can be used with emit_insn() ? ie:
use_reg (emit_insn(), gen_rtx_REG(REGNO))
The idea being to mark REGNO as being used by the instructions
generated by emit_insn().
So far I have only seen use_reg() being used for function-call rtx;
but is there a similar function that can be used with emit_insn() ?