1 files changed, 24 insertions, 1 deletions
diff --git a/lib/CodeGen/TargetInstrInfo.cpp b/lib/CodeGen/TargetInstrInfo.cpp
index ab45f89..2566c1f 100644
--- a/lib/CodeGen/TargetInstrInfo.cpp
+++ b/lib/CodeGen/TargetInstrInfo.cpp
@@ -25,6 +25,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetLowering.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
@@ -307,7 +308,7 @@ bool TargetInstrInfo::getStackSlotRange(const TargetRegisterClass *RC,
 
   assert(RC->getSize() >= (Offset + Size) && "bad subregister range");
 
-  if (!TM->getSubtargetImpl()->getDataLayout()->isLittleEndian()) {
+  if (!TM->getDataLayout()->isLittleEndian()) {
     Offset = RC->getSize() - (Offset + Size);
   }
   return true;
@@ -644,6 +645,28 @@ isReallyTriviallyReMaterializableGeneric(const MachineInstr *MI,
   return true;
 }
 
+int TargetInstrInfo::getSPAdjust(const MachineInstr *MI) const {
+  const MachineFunction *MF = MI->getParent()->getParent();
+  const TargetFrameLowering *TFI = MF->getSubtarget().getFrameLowering();
+  bool StackGrowsDown =
+    TFI->getStackGrowthDirection() == TargetFrameLowering::StackGrowsDown;
+
+  int FrameSetupOpcode = getCallFrameSetupOpcode();
+  int FrameDestroyOpcode = getCallFrameDestroyOpcode();
+
+  if (MI->getOpcode() != FrameSetupOpcode &&
+      MI->getOpcode() != FrameDestroyOpcode)
+    return 0;
+ 
+  int SPAdj = MI->getOperand(0).getImm();
+
+  if ((!StackGrowsDown && MI->getOpcode() == FrameSetupOpcode) ||
+       (StackGrowsDown && MI->getOpcode() == FrameDestroyOpcode))
+    SPAdj = -SPAdj;
+
+  return SPAdj;
+}
+
 /// isSchedulingBoundary - Test if the given instruction should be
 /// considered a scheduling boundary. This primarily includes labels
 /// and terminators.