make sure to safe LR8 in the right stack slot for PPC64


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31839 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCFrameInfo.h b/lib/Target/PowerPC/PPCFrameInfo.h
index ed67496..1330034 100644
--- a/lib/Target/PowerPC/PPCFrameInfo.h
+++ b/lib/Target/PowerPC/PPCFrameInfo.h
@@ -26,8 +26,13 @@
 public:
   PPCFrameInfo(const TargetMachine &tm, bool LP64)
     : TargetFrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0), TM(tm) {
-    LR[0].first = PPC::LR;
-    LR[0].second = LP64 ? 16 : 8;
+    if (LP64) {
+      LR[0].first = PPC::LR8;
+      LR[0].second = 16;
+    } else {
+      LR[0].first = PPC::LR;
+      LR[0].second = 8;
+    }
   }
 
   const std::pair<unsigned, int> *
diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index 954d15c..dde998f 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -83,7 +83,7 @@
                                    bool is64Bit)
   : Subtarget(M, FS, is64Bit),
     DataLayout(Subtarget.getTargetDataString()), InstrInfo(*this),
-    FrameInfo(*this, false), JITInfo(*this, is64Bit), TLInfo(*this),
+    FrameInfo(*this, is64Bit), JITInfo(*this, is64Bit), TLInfo(*this),
     InstrItins(Subtarget.getInstrItineraryData()) {
 
   if (getRelocationModel() == Reloc::Default)