Support to provide exception and selector registers.

llvm-svn: 34482

3 files changed, 17 insertions, 0 deletions

diff --git a/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp b/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
index 647007e86bf..59c7901ab4b 100644
--- a/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
@@ -871,6 +871,9 @@ LowerOperation(SDOperand Op, SelectionDAG &DAG) {
   // Frame & Return address.  Currently unimplemented
   case ISD::RETURNADDR:         break;
   case ISD::FRAMEADDR:          break;
+  // Exception address and exception selector.  Currently unimplemented.
+  case ISD::EXCEPTIONADDR: break;
+  case ISD::EHSELECTION:   break;
   }
   return SDOperand();
 }
diff --git a/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp b/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp
index dab0b1037d1..4ea31e2e8e1 100644
--- a/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp
+++ b/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp
@@ -250,5 +250,15 @@ unsigned SparcRegisterInfo::getFrameRegister(MachineFunction &MF) const {
   return SP::G1;
 }
 
+unsigned SparcRegisterInfo::getEHExceptionRegister() const {
+  assert(0 && "What is the exception register");
+  return 0;
+}
+
+unsigned SparcRegisterInfo::getEHHandlerRegister() const {
+  assert(0 && "What is the exception handler register");
+  return 0;
+}
+
 #include "SparcGenRegisterInfo.inc"
 
diff --git a/llvm/lib/Target/Sparc/SparcRegisterInfo.h b/llvm/lib/Target/Sparc/SparcRegisterInfo.h
index 763156a70c0..426cc664a4a 100644
--- a/llvm/lib/Target/Sparc/SparcRegisterInfo.h
+++ b/llvm/lib/Target/Sparc/SparcRegisterInfo.h
@@ -70,6 +70,10 @@ struct SparcRegisterInfo : public SparcGenRegisterInfo {
   // Debug information queries.
   unsigned getRARegister() const;
   unsigned getFrameRegister(MachineFunction &MF) const;
+
+  // Exception handling queries.
+  unsigned getEHExceptionRegister() const;
+  unsigned getEHHandlerRegister() const;
 };
 
 } // end namespace llvm