diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index a6ff53d..aa68ae2 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -1298,11 +1298,8 @@
   let Inst{7-4} = 0b0111;
 }
 
-// Change Processor State is a system instruction -- for disassembly and
-// parsing only.
-// FIXME: Since the asm parser has currently no clean way to handle optional
-// operands, create 3 versions of the same instruction. Once there's a clean
-// framework to represent optional operands, change this behavior.
+// Change Processor State
+// FIXME: We should use InstAlias to handle the optional operands.
 class CPS<dag iops, string asm_ops>
   : AXI<(outs), iops, MiscFrm, NoItinerary, !strconcat("cps", asm_ops),
         []>, Requires<[IsARM]> {