From 55caf9c60a6593b232db80eb961cbffb6e15a724 Mon Sep 17 00:00:00 2001
From: Venkatraman Govindaraju <venkatra@cs.wisc.edu>
Date: Sun, 25 Dec 2011 18:50:24 +0000
Subject: [PATCH] Sparc: Implement emitFrameIndexDebugValue and getDebugValue
 Location hooks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147269 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Sparc/SparcAsmPrinter.cpp | 11 ++++++++++-
 lib/Target/Sparc/SparcInstrInfo.cpp  | 11 +++++++++++
 lib/Target/Sparc/SparcInstrInfo.h    |  7 +++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/lib/Target/Sparc/SparcAsmPrinter.cpp b/lib/Target/Sparc/SparcAsmPrinter.cpp
index 7548bbf6ebe..0ce4c2e2a98 100644
--- a/lib/Target/Sparc/SparcAsmPrinter.cpp
+++ b/lib/Target/Sparc/SparcAsmPrinter.cpp
@@ -62,6 +62,8 @@ namespace {
     
     virtual bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB)
                        const;
+
+    virtual MachineLocation getDebugValueLocation(const MachineInstr *MI) const;
   };
 } // end of anonymous namespace
 
@@ -241,7 +243,14 @@ isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const {
   return I == Pred->end() || !I->isBarrier();
 }
 
-
+MachineLocation SparcAsmPrinter::
+getDebugValueLocation(const MachineInstr *MI) const {
+  assert(MI->getNumOperands() == 4 && "Invalid number of operands!");
+  assert(MI->getOperand(0).isReg() && MI->getOperand(1).isImm() &&
+         "Unexpected MachineOperand types");
+  return MachineLocation(MI->getOperand(0).getReg(),
+                         MI->getOperand(1).getImm());
+}
 
 // Force static initialization.
 extern "C" void LLVMInitializeSparcAsmPrinter() { 
diff --git a/lib/Target/Sparc/SparcInstrInfo.cpp b/lib/Target/Sparc/SparcInstrInfo.cpp
index 5290d42a0a6..e6e87b48df9 100644
--- a/lib/Target/Sparc/SparcInstrInfo.cpp
+++ b/lib/Target/Sparc/SparcInstrInfo.cpp
@@ -112,6 +112,17 @@ static SPCC::CondCodes GetOppositeBranchCondition(SPCC::CondCodes CC)
   }
 }
 
+MachineInstr *
+SparcInstrInfo::emitFrameIndexDebugValue(MachineFunction &MF,
+                                         int FrameIx,
+                                         uint64_t Offset,
+                                         const MDNode *MDPtr,
+                                         DebugLoc dl) const {
+  MachineInstrBuilder MIB = BuildMI(MF, dl, get(SP::DBG_VALUE))
+    .addFrameIndex(FrameIx).addImm(0).addImm(Offset).addMetadata(MDPtr);
+  return &*MIB;
+}
+
 
 bool SparcInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,
                                    MachineBasicBlock *&TBB,
diff --git a/lib/Target/Sparc/SparcInstrInfo.h b/lib/Target/Sparc/SparcInstrInfo.h
index eda64efb7a0..4b5d0eb1842 100644
--- a/lib/Target/Sparc/SparcInstrInfo.h
+++ b/lib/Target/Sparc/SparcInstrInfo.h
@@ -62,6 +62,13 @@ public:
   virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
                                       int &FrameIndex) const;
 
+  /// emitFrameIndexDebugValue - Emit a target-dependent form of
+  /// DBG_VALUE encoding the address of a frame index.
+  virtual MachineInstr *emitFrameIndexDebugValue(MachineFunction &MF,
+                                                 int FrameIx,
+                                                 uint64_t Offset,
+                                                 const MDNode *MDPtr,
+                                                 DebugLoc dl) const;
 
   virtual bool AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
                              MachineBasicBlock *&FBB,
-- 
2.34.1