1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
index ac32aea..c0169ea 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
@@ -78,6 +78,22 @@ public:
                                       const APInt &Imm, Type *Ty,
                                       TTI::TargetCostKind CostKind);
 
+  /// \name EVL Support for predicated vectorization.
+  /// Whether the target supports the %evl parameter of VP intrinsic efficiently
+  /// in hardware, for the given opcode and type/alignment. (see LLVM Language
+  /// Reference - "Vector Predication Intrinsics",
+  /// https://llvm.org/docs/LangRef.html#vector-predication-intrinsics and
+  /// "IR-level VP intrinsics",
+  /// https://llvm.org/docs/Proposals/VectorPredication.html#ir-level-vp-intrinsics).
+  /// \param Opcode the opcode of the instruction checked for predicated version
+  /// support.
+  /// \param DataType the type of the instruction with the \p Opcode checked for
+  /// prediction support.
+  /// \param Alignment the alignment for memory access operation checked for
+  /// predicated version support.
+  bool hasActiveVectorLength(unsigned Opcode, Type *DataType,
+                             Align Alignment) const;
+
   TargetTransformInfo::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
 
   bool shouldExpandReduction(const IntrinsicInst *II) const;