Index: lib/Target/X86/X86InstrSystem.td
===================================================================
--- lib/Target/X86/X86InstrSystem.td
+++ lib/Target/X86/X86InstrSystem.td
@@ -28,8 +28,10 @@
   def UD2B    : I<0xB9, RawFrm, (outs), (ins), "ud2b", []>, TB;
 }
 
-def HLT : I<0xF4, RawFrm, (outs), (ins), "hlt", [], IIC_HLT>;
-def RSM : I<0xAA, RawFrm, (outs), (ins), "rsm", [], IIC_RSM>, TB;
+def HLT : I<0xF4, RawFrm, (outs), (ins), "hlt", [], IIC_HLT>;
+
+let Defs = [EFLAGS] in
+  def RSM : I<0xAA, RawFrm, (outs), (ins), "rsm", [], IIC_RSM>, TB;
 
 // Interrupt and SysCall Instructions.
 let Uses = [EFLAGS] in