v_2 := v.Args[2]
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (AtomicCompareAndSwap32 ptr old new_ mem)
	// result: (LoweredAtomicCas32 [1] ptr old new_ mem)
	for {
		ptr := v_0
		old := v_1
		new_ := v_2
		mem := v_3
		v.reset(OpPPC64LoweredAtomicCas32)
		v.AuxInt = int64ToAuxInt(1)
		v.AddArg4(ptr, old, new_, mem)
		return true
	}
}
func rewriteValuePPC64_OpAtomicCompareAndSwap64(v *Value) bool {

			idx := fieldIdx(left)

			// Grab old value of structure.
			old := s.expr(left.X)

			// Make new structure.
			new := s.newValue0(ssa.StructMakeOp(t.NumFields()), t)

			// Add fields as args.
			for i := 0; i < nf; i++ {
				if i == idx {
					new.AddArg(right)
				} else {
					new.AddArg(s.newValue1I(ssa.OpStructSelect, t.FieldType(i), int64(i), old))
				}
			}

	v_3 := v.Args[3]
	v_2 := v.Args[2]
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (AtomicCompareAndSwap32 ptr old new_ mem)
	// result: (LoweredAtomicCas32 ptr old new_ mem)
	for {
		ptr := v_0
		old := v_1
		new_ := v_2
		mem := v_3
		v.reset(OpS390XLoweredAtomicCas32)
		v.AddArg4(ptr, old, new_, mem)
		return true
	}
}
func rewriteValueS390X_OpAtomicCompareAndSwap64(v *Value) bool {