Implement @llvm.returnaddress. rdar://8015977.

llvm-svn: 104421

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 6f1195393bd..10b516aa133 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -5496,12 +5496,15 @@ bool PPCTargetLowering::isLegalAddressImmediate(llvm::GlobalValue* GV) const {
 
 SDValue PPCTargetLowering::LowerRETURNADDR(SDValue Op,
                                            SelectionDAG &DAG) const {
+  MachineFunction &MF = DAG.getMachineFunction();
+  MachineFrameInfo *MFI = MF.getFrameInfo();
+  MFI->setReturnAddressIsTaken(true);
+
   DebugLoc dl = Op.getDebugLoc();
   unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
 
   // Make sure the function does not optimize away the store of the RA to
   // the stack.
-  MachineFunction &MF = DAG.getMachineFunction();
   PPCFunctionInfo *FuncInfo = MF.getInfo<PPCFunctionInfo>();
   FuncInfo->setLRStoreRequired();
   bool isPPC64 = PPCSubTarget.isPPC64();