;; ---------------------------------------------------------------------- ;; PROLOGUE/EPILOGUE-RELATED INSTRUCTIONS ;; ----------------------------------------------------------------------
(define_expand “push_h8300hs_advanced” [(set (mem:SI (pre_dec:SI (reg:SI SP_REG))) (match_operand:SI 0 “register_operand” ""))] “TARGET_H8300H && TARGET_H8300S && !TARGET_NORMAL_MODE” "")
(define_expand “push_h8300hs_normal” [(set (mem:SI (pre_dec:HI (reg:HI SP_REG))) (match_operand:SI 0 “register_operand” ""))] “TARGET_H8300H && TARGET_H8300S && TARGET_NORMAL_MODE” "")
(define_expand “pop_h8300hs_advanced” [(set (match_operand:SI 0 “register_operand” "") (mem:SI (post_inc:SI (reg:SI SP_REG))))] “TARGET_H8300H && TARGET_H8300S && !TARGET_NORMAL_MODE” "")
(define_expand “pop_h8300hs_normal” [(set (match_operand:SI 0 “register_operand” "") (mem:SI (post_inc:HI (reg:HI SP_REG))))] “TARGET_H8300H && TARGET_H8300S && TARGET_NORMAL_MODE” "")
(define_insn “ldm_h8300sx” [(match_parallel 0 “h8300_ldm_parallel” [(set (match_operand:SI 1 “register_operand” "") (match_operand:SI 2 “memory_operand” ""))])] “TARGET_H8300S” { operands[3] = SET_DEST (XVECEXP (operands[0], 0, XVECLEN (operands[0], 0) - 2)); return “ldm.l\t@er7+,%S1-%S3”; } [(set_attr “length” “4”)])
(define_insn “stm_h8300sx” [(match_parallel 0 “h8300_stm_parallel” [(set (match_operand:SI 1 “memory_operand” "") (match_operand:SI 2 “register_operand” ""))])] “TARGET_H8300S” { operands[3] = SET_SRC (XVECEXP (operands[0], 0, XVECLEN (operands[0], 0) - 2)); return “stm.l\t%S2-%S3,@-er7”; } [(set_attr “length” “4”)])
(define_insn “return_h8sx” [(match_parallel 0 “h8300_return_parallel” [(return) (set (match_operand:SI 1 “register_operand” "") (match_operand:SI 2 “memory_operand” ""))])] “TARGET_H8300SX” { operands[3] = SET_DEST (XVECEXP (operands[0], 0, XVECLEN (operands[0], 0) - 2)); if (h8300_current_function_interrupt_function_p () || h8300_current_function_monitor_function_p ()) return “rte/l\t%S1-%S3”; else return “rts/l\t%S1-%S3”; } [(set_attr “can_delay” “no”) (set_attr “length” “2”)])
(define_expand “return” [(return)] “h8300_can_use_return_insn_p ()” "")
(define_insn “*return_1” [(return)] “reload_completed” { if (h8300_current_function_interrupt_function_p () || h8300_current_function_monitor_function_p ()) return “rte”; else return “rts”; } [(set_attr “can_delay” “no”) (set_attr “length” “2”)])
(define_expand “prologue” [(const_int 0)] "" { h8300_expand_prologue (); DONE; })
(define_expand “epilogue” [(return)] "" { h8300_expand_epilogue (false); DONE; })
(define_insn “monitor_prologue” [(unspec_volatile [(const_int 0)] UNSPEC_MONITOR)] "" { if (TARGET_H8300H && TARGET_NORMAL_MODE) return “subs\t#2,er7;mov.l\ter0,@-er7;stc\tccr,r0l;mov.b\tr0l,@(4,er7);mov.l\t@er7+,er0;orc\t#128,ccr”; else if (TARGET_H8300H) return “mov.l\ter0,@-er7;stc\tccr,r0l;mov.b\tr0l,@(4,er7);mov.l\t@er7+,er0;orc\t#128,ccr”; else if (TARGET_H8300S && TARGET_NEXR ) return “mov.l\ter0,@-er7;stc\tccr,r0l;mov.b\tr0l,@(4,er7);mov.l\t@er7+,er0;orc\t#128,ccr”; else if (TARGET_H8300S && TARGET_NEXR && TARGET_NORMAL_MODE) return “subs\t#2,er7;mov.l\ter0,@-er7;stc\tccr,r0l;mov.b\tr0l,@(4,er7);mov.l\t@er7+,er0;orc\t#128,ccr”; else if (TARGET_H8300S && TARGET_NORMAL_MODE) return “subs\t#2,er7;stc\texr,@-er7;mov.l\ter0,@-er7;stc\tccr,r0l;mov.b\tr0l,@(6,er7);mov.l\t@er7+,er0;orc\t#128,ccr”; else if (TARGET_H8300S) return “stc\texr,@-er7;mov.l\ter0,@-er7;stc\tccr,r0l;mov.b\tr0l,@(6,er7);mov.l\t@er7+,er0;orc\t#128,ccr”; gcc_unreachable (); } [(set_attr “length” “20”)])
(define_expand “sibcall_epilogue” [(const_int 0)] "" { h8300_expand_epilogue (true); DONE; })