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      1 //
      2 // Auto-insertion of instruction and data serialization
      3 //
      4 .text
      5 start:
      6 // Requires data serialization
      7 	ptc.e	r1
      8 	ld8	r1 = [r2]
      9 	rfi
     10 // Requires instruction serialization
     11 	ptc.e	r1
     12 	epc
     13 	rfi
     14