1 files changed, 10 insertions, 5 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 70b285e..d1c98f6 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -1213,11 +1213,16 @@ public:
     return false;
   }
 
-  /// isFMAFasterThanMulAndAdd - Return true if an FMA operation is faster than
-  /// a pair of mul and add instructions. fmuladd intrinsics will be expanded to
-  /// FMAs when this method returns true (and FMAs are legal), otherwise fmuladd
-  /// is expanded to mul + add.
-  virtual bool isFMAFasterThanMulAndAdd(EVT) const {
+  /// isFMAFasterThanFMulAndFAdd - Return true if an FMA operation is faster
+  /// than a pair of fmul and fadd instructions. fmuladd intrinsics will be
+  /// expanded to FMAs when this method returns true, otherwise fmuladd is
+  /// expanded to fmul + fadd.
+  ///
+  /// NOTE: This may be called before legalization on types for which FMAs are
+  /// not legal, but should return true if those types will eventually legalize
+  /// to types that support FMAs. After legalization, it will only be called on
+  /// types that support FMAs (via Legal or Custom actions)
+  virtual bool isFMAFasterThanFMulAndFAdd(EVT) const {
     return false;
   }