diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp
index 05d2d88..4a04b29 100644
--- a/lib/Target/X86/InstSelectSimple.cpp
+++ b/lib/Target/X86/InstSelectSimple.cpp
@@ -2640,8 +2640,7 @@
     
     if (PromoteType) {
       unsigned TmpReg = makeAnotherReg(PromoteType);
-      unsigned Opc = SrcTy->isSigned() ? X86::MOVSX16rr8 : X86::MOVZX16rr8;
-      BuildMI(*BB, IP, Opc, 1, TmpReg).addReg(SrcReg);
+      BuildMI(*BB, IP, PromoteOpcode, 1, TmpReg).addReg(SrcReg);
       SrcTy = PromoteType;
       SrcClass = getClass(PromoteType);
       SrcReg = TmpReg;
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index 05d2d88..4a04b29 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -2640,8 +2640,7 @@
     
     if (PromoteType) {
       unsigned TmpReg = makeAnotherReg(PromoteType);
-      unsigned Opc = SrcTy->isSigned() ? X86::MOVSX16rr8 : X86::MOVZX16rr8;
-      BuildMI(*BB, IP, Opc, 1, TmpReg).addReg(SrcReg);
+      BuildMI(*BB, IP, PromoteOpcode, 1, TmpReg).addReg(SrcReg);
       SrcTy = PromoteType;
       SrcClass = getClass(PromoteType);
       SrcReg = TmpReg;