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[oota-llvm.git] / lib / Target / MSP430 / MSP430FrameLowering.cpp

diff --git a/lib/Target/MSP430/MSP430FrameLowering.cpp b/lib/Target/MSP430/MSP430FrameLowering.cpp
index 61d7f2bf4766128948e1fafbab7f49ad021f29fd..1b3268848962ead060de9d38533a9c49fb4df0bd 100644 (file)
--- a/lib/Target/MSP430/MSP430FrameLowering.cpp
+++ b/lib/Target/MSP430/MSP430FrameLowering.cpp
@@ -14,15 +14,15 @@
 #include "MSP430FrameLowering.h"
 #include "MSP430InstrInfo.h"
 #include "MSP430MachineFunctionInfo.h"
-#include "llvm/Function.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetOptions.h"
+#include "llvm/DataLayout.h"
+#include "llvm/Function.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Target/TargetOptions.h"
 
 using namespace llvm;
 
@@ -221,3 +221,17 @@ MSP430FrameLowering::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
 
   return true;
 }
+
+void
+MSP430FrameLowering::processFunctionBeforeFrameFinalized(MachineFunction &MF)
+                                                                         const {
+  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+
+  // Create a frame entry for the FPW register that must be saved.
+  if (TFI->hasFP(MF)) {
+    int FrameIdx = MF.getFrameInfo()->CreateFixedObject(2, -4, true);
+    (void)FrameIdx;
+    assert(FrameIdx == MF.getFrameInfo()->getObjectIndexBegin() &&
+           "Slot for FPW register must be last in order to be found!");
+  }
+}