Revert 127359; it broke lencod.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127382 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 38746b0..9ce0046 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -1564,7 +1564,7 @@
   SDValue SizeNode = DAG.getConstant(Flags.getByValSize(), MVT::i32);
 
   return DAG.getMemcpy(Chain, dl, Dst, Src, SizeNode, Flags.getByValAlign(),
-                       /*isVolatile*/false, /*AlwaysInline=*/false,
+                       /*isVolatile*/false, /*AlwaysInline=*/true,
                        MachinePointerInfo(), MachinePointerInfo());
 }