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/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 2df31e81b6..6b281bd2d8 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -21,6 +21,7 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineLocation.h"
 #include "llvm/Target/TargetFrameInfo.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetOptions.h"
@@ -446,5 +447,16 @@ void PPCRegisterInfo::emitEpilogue(MachineFunction &MF,
   }
 }
 
+void PPCRegisterInfo::getLocation(MachineFunction &MF, unsigned Index,
+                                  MachineLocation &ML) const {
+  MachineFrameInfo *MFI = MF.getFrameInfo();
+  bool FP = hasFP(MF);
+  
+  // FIXME - Needs to handle register variables.
+  // FIXME - Faking that llvm number is same as gcc numbering.
+  ML.set((FP ? PPC::R31 : PPC::R1) - PPC::R0,
+         MFI->getObjectOffset(Index) + MFI->getStackSize());
+}
+
 #include "PPCGenRegisterInfo.inc"