diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index a46fa49..212b1c1 100644
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -18,7 +18,6 @@
 
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/Support/DebugLoc.h"
-#include "llvm/Target/TargetMachine.h"
 
 namespace llvm {
   class BlockAddress;
@@ -84,10 +83,6 @@
     ///
     const MCAsmInfo *MAI;
 
-    /// Target Register Information.
-    ///
-    const TargetRegisterInfo *TRI;
-
     /// OutContext - This is the context for the output file that we are
     /// streaming.  This owns all of the global MC-related objects for the
     /// generated translation unit.
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 9007d0d..2a8e3ee 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -65,7 +65,7 @@
 
 AsmPrinter::AsmPrinter(TargetMachine &tm, MCStreamer &Streamer)
   : MachineFunctionPass(&ID),
-    TM(tm), MAI(tm.getMCAsmInfo()), TRI(tm.getRegisterInfo()),
+    TM(tm), MAI(tm.getMCAsmInfo()),
     OutContext(Streamer.getContext()),
     OutStreamer(Streamer),
     LastMI(0), LastFn(0), Counter(~0U), SetCounter(0) {
@@ -1610,8 +1610,9 @@
 /// that is an implicit def.
 void AsmPrinter::printImplicitDef(const MachineInstr *MI) const {
   if (!VerboseAsm) return;
+  unsigned RegNo = MI->getOperand(0).getReg();
   OutStreamer.AddComment(Twine("implicit-def: ") +
-                         TRI->getName(MI->getOperand(0).getReg()));
+                         TM.getRegisterInfo()->getName(RegNo));
   OutStreamer.AddBlankLine();
 }
 
@@ -1623,7 +1624,7 @@
     const MachineOperand &Op = MI->getOperand(n);
     assert(Op.isReg() && "KILL instruction must have only register operands");
     Str += ' ';
-    Str += TRI->getName(Op.getReg());
+    Str += TM.getRegisterInfo()->getName(Op.getReg());
     Str += (Op.isDef() ? "<def>" : "<kill>");
   }
   OutStreamer.AddComment(Str);
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 07b35e2..6d6071a 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -24,6 +24,7 @@
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetFrameInfo.h"
 #include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/StringExtras.h"
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index bf89cd6..60136cf 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -27,6 +27,7 @@
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetFrameInfo.h"
 #include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Support/Dwarf.h"
diff --git a/lib/CodeGen/AsmPrinter/DwarfPrinter.cpp b/lib/CodeGen/AsmPrinter/DwarfPrinter.cpp
index 4106c7a..2ae7d47 100644
--- a/lib/CodeGen/AsmPrinter/DwarfPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfPrinter.cpp
@@ -26,6 +26,7 @@
 #include "llvm/Target/TargetFrameInfo.h"
 #include "llvm/Target/TargetLoweringObjectFile.h"
 #include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetMachine.h"
 #include "llvm/Support/Dwarf.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/ADT/SmallString.h"
diff --git a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
index def4ac1..18b309b 100644
--- a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
@@ -320,15 +320,16 @@
     unsigned Reg = MO.getReg();
     assert(TargetRegisterInfo::isPhysicalRegister(Reg));
     if (Modifier && strcmp(Modifier, "dregpair") == 0) {
-      unsigned DRegLo = TRI->getSubReg(Reg, 5); // arm_dsubreg_0
-      unsigned DRegHi = TRI->getSubReg(Reg, 6); // arm_dsubreg_1
+      unsigned DRegLo = TM.getRegisterInfo()->getSubReg(Reg, 5);// arm_dsubreg_0
+      unsigned DRegHi = TM.getRegisterInfo()->getSubReg(Reg, 6);// arm_dsubreg_1
       O << '{'
         << getRegisterName(DRegLo) << ',' << getRegisterName(DRegHi)
         << '}';
     } else if (Modifier && strcmp(Modifier, "lane") == 0) {
       unsigned RegNum = ARMRegisterInfo::getRegisterNumbering(Reg);
-      unsigned DReg = TRI->getMatchingSuperReg(Reg, RegNum & 1 ? 2 : 1,
-                                               &ARM::DPR_VFP2RegClass);
+      unsigned DReg =
+        TM.getRegisterInfo()->getMatchingSuperReg(Reg, RegNum & 1 ? 2 : 1,
+                                                  &ARM::DPR_VFP2RegClass);
       O << getRegisterName(DReg) << '[' << (RegNum & 1) << ']';
     } else {
       assert(!MO.getSubReg() && "Subregs should be eliminated!");
diff --git a/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp b/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
index 17271e6..b63caae 100644
--- a/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
+++ b/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
@@ -130,9 +130,9 @@
     unsigned Reg = MO.getReg();
     if (Modifier && strncmp(Modifier, "subreg", 6) == 0) {
       if (strncmp(Modifier + 7, "even", 4) == 0)
-        Reg = TRI->getSubReg(Reg, SystemZ::SUBREG_EVEN);
+        Reg = TM.getRegisterInfo()->getSubReg(Reg, SystemZ::SUBREG_EVEN);
       else if (strncmp(Modifier + 7, "odd", 3) == 0)
-        Reg = TRI->getSubReg(Reg, SystemZ::SUBREG_ODD);
+        Reg = TM.getRegisterInfo()->getSubReg(Reg, SystemZ::SUBREG_ODD);
       else
         assert(0 && "Invalid subreg modifier");
     }