中間表現2

(JUMP2 (TSTGE I1 (REG I16 t8) (INTCONST I16 0)) (LABEL L0) (LABEL L4))
 (LABEL L0)
 (SET (REG I8 t0) (ADD I8 (REG I8 t0) (INTCONST I8 1)))
 (SET (REG I16 t8) (ADD I16 (REG I16 t8) (REG I16 t28)))
(LABEL 4)

↓

(SET (REG I16 t16) (TSTGE I16 (REG I16 t8) (INTCONST I16 0)))
(SET (REG I8 t0) (ADD I8 (REG I8 t0) (NEG I8 (CONVIT I8 (REG I16 t16)))))
(SET (REG I16 t8) (ADD I16 (REG I16 t8) (BAND I16 (REG I16 t28) (REG I16 t16))))

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