1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/include/llvm/CodeGen/FunctionLoweringInfo.h b/llvm/include/llvm/CodeGen/FunctionLoweringInfo.h
index 3b39d87ffb4..24f5cd7cc66 100644
--- a/llvm/include/llvm/CodeGen/FunctionLoweringInfo.h
+++ b/llvm/include/llvm/CodeGen/FunctionLoweringInfo.h
@@ -118,6 +118,17 @@ public:
   /// cross-basic-block values.
   DenseMap<const Value *, unsigned> ValueMap;
 
+  /// VirtReg2Value map is needed by the Divergence Analysis driven
+  /// instruction selection. It is reverted ValueMap. It is computed
+  /// in lazy style - on demand. It is used to get the Value corresponding
+  /// to the live in virtual register and is called from the
+  /// TargetLowerinInfo::isSDNodeSourceOfDivergence.
+  DenseMap<unsigned, const Value*> VirtReg2Value;
+
+  /// This method is called from TargetLowerinInfo::isSDNodeSourceOfDivergence
+  /// to get the Value corresponding to the live-in virtual register.
+  const Value * getValueFromVirtualReg(unsigned Vreg);
+
   /// Track virtual registers created for exception pointers.
   DenseMap<const Value *, unsigned> CatchPadExceptionPointers;