[CodeGenPrepare] Reapply r224351 with a fix for the assertion failure:

[oota-llvm.git] / include / llvm / Target / TargetLowering.h

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 17cfe9d913becf63ea2959942fe1ee273492406b..1f5c1fd71571bae567f4d9d67ab411adf73ffd8b 100644 (file)
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -264,6 +264,11 @@ public:
     return MaskAndBranchFoldingIsLegal;
   }
 
+  /// \brief Return true if the target wants to use the optimization that
+  /// turns ext(promotableInst1(...(promotableInstN(load)))) into
+  /// promotedInst1(...(promotedInstN(ext(load)))).
+  bool enableExtLdPromotion() const { return EnableExtLdPromotion; }
+
   /// Return true if the target can combine store(extractelement VectorTy,
   /// Idx).
   /// \p Cost[out] gives the cost of that transformation when this is true.
@@ -1954,6 +1959,9 @@ protected:
   /// a mask of a single bit, a compare, and a branch into a single instruction.
   bool MaskAndBranchFoldingIsLegal;
 
+  /// \see enableExtLdPromotion.
+  bool EnableExtLdPromotion;
+
 protected:
   /// Return true if the value types that can be represented by the specified
   /// register class are all legal.