diff --git a/lib/Target/X86/X86.h b/lib/Target/X86/X86.h
index 2fc022af4b1..c89bb095e17 100644
--- a/lib/Target/X86/X86.h
+++ b/lib/Target/X86/X86.h
@@ -51,12 +51,6 @@ FunctionPass *createX86SSAPeepholeOptimizerPass();
 ///
 FunctionPass *createX86PeepholeOptimizerPass();
 
-/// createX86FloatingPointKiller - This function returns a pass which
-/// kills every floating point register at the end of each basic block
-/// because our FloatingPointStackifier cannot handle them.
-///
-FunctionPass *createX86FloatingPointKillerPass();
-
 /// createX86FloatingPointStackifierPass - This function returns a pass which
 /// converts floating point register references and pseudo instructions into
 /// floating point stack references and physical instructions.