-1: ldxr x2, [x1]
- lsr x0, x2, x3 // Save old value of bit
- \instr x2, x2, x4 // toggle bit
- stlxr w5, x2, [x1]
- cbnz w5, 1b
- dmb ish
+
+alt_lse "1: ldxr x2, [x1]", "\lse x4, x2, [x1]"
+ lsr x0, x2, x3
+alt_lse " \llsc x2, x2, x4", "nop"
+alt_lse " stlxr w5, x2, [x1]", "nop"
+alt_lse " cbnz w5, 1b", "nop"
+alt_lse " dmb ish", "nop"
+