Cross Reference: /toolchain/binutils/binutils-2.27/gas/testsuite/gas/ia64/operands.s

      1 	.text
      2 _start:
      3 	zxt1	r1, r2 = r3
      4 	zxt2	r4 = r5, r6
      5 	zxt4	p1 = r8
      6 	sxt1	r7 = 0
      7