Add support to locate local variables in frames (early version.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26994 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp
index ff9c5a3ec3..21a0cd85d8 100644
--- a/lib/Target/Sparc/SparcRegisterInfo.cpp
+++ b/lib/Target/Sparc/SparcRegisterInfo.cpp
@@ -17,6 +17,7 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineLocation.h"
 #include "llvm/Type.h"
 #include "llvm/ADT/STLExtras.h"
 #include <iostream>
@@ -199,5 +200,16 @@ void SparcRegisterInfo::emitEpilogue(MachineFunction &MF,
   BuildMI(MBB, MBBI, SP::RESTORErr, 2, SP::G0).addReg(SP::G0).addReg(SP::G0);
 }
 
+void SparcRegisterInfo::getLocation(MachineFunction &MF, unsigned Index,
+                                  MachineLocation &ML) const {
+  assert(0 && "Needs to be defined for target");
+  MachineFrameInfo *MFI = MF.getFrameInfo();
+  
+  // FIXME - Needs to handle register variables.
+  // FIXME - Faking that llvm number is same as gcc numbering.
+  ML.set(SP::G1 - SP::G0,
+         MFI->getObjectOffset(Index) + MFI->getStackSize());
+}
+
 #include "SparcGenRegisterInfo.inc"