fix missing #includes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95745 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegRewriter.cpp b/lib/CodeGen/VirtRegRewriter.cpp
index 37d69fc..dd07149 100644
--- a/lib/CodeGen/VirtRegRewriter.cpp
+++ b/lib/CodeGen/VirtRegRewriter.cpp
@@ -10,6 +10,7 @@
 #define DEBUG_TYPE "virtregrewriter"
 #include "VirtRegRewriter.h"
 #include "llvm/Function.h"
+#include "llvm/CodeGen/AsmPrinter.h"  // FIXME: Layering!
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"