Add accessor for 64bit flag, so that we can tell when it is safe to
generate the fun in-register fp<->long instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23244 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index ca9d077..3196f09 100644
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -132,6 +132,7 @@
                            PowerPCSubTypeKV, PowerPCSubTypeKVSize,
                            PowerPCFeatureKV, PowerPCFeatureKVSize);
   IsGigaProcessor = (Bits & PowerPCFeatureGPUL ) != 0;
+  Is64Bit         = (Bits & PowerPCFeature64Bit) != 0;
   HasFSQRT        = (Bits & PowerPCFeatureFSqrt) != 0;
 
   // Set the boolean corresponding to the current target triple, or the default