1 files changed, 22 insertions, 3 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.h b/llvm/lib/Target/SystemZ/SystemZISelLowering.h
index 8efe2204581..b8dc4ab65f4 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.h
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.h
@@ -162,6 +162,10 @@ enum NodeType : unsigned {
   // Transaction end.  Just the chain operand.  Returns CC value and chain.
   TEND,
 
+  // Create a vector constant by filling byte N of the result with bit
+  // 15-N of the single operand.
+  BYTE_MASK,
+
   // Create a vector constant by replicating an element-sized RISBG-style mask.
   // The first operand specifies the starting set bit and the second operand
   // specifies the ending set bit.  Both operands count from the MSB of the
@@ -513,9 +517,6 @@ public:
     return true;
   }
 
-  static bool tryBuildVectorByteMask(BuildVectorSDNode *BVN, uint64_t &Mask);
-  static bool analyzeFPImm(const APFloat &Imm, unsigned BitWidth,
-                 unsigned &Start, unsigned &End, const SystemZInstrInfo *TII);
 private:
   const SystemZSubtarget &Subtarget;
 
@@ -643,6 +644,24 @@ private:
 
   const TargetRegisterClass *getRepRegClassFor(MVT VT) const override;
 };
+
+struct SystemZVectorConstantInfo {
+private:
+  APInt IntBits;             // The 128 bits as an integer.
+  APInt SplatBits;           // Smallest splat value.
+  APInt SplatUndef;          // Bits correspoding to undef operands of the BVN.
+  unsigned SplatBitSize = 0;
+  bool isFP128 = false;
+
+public:
+  unsigned Opcode = 0;
+  SmallVector<unsigned, 2> OpVals;
+  MVT VecVT;
+  SystemZVectorConstantInfo(APFloat FPImm);
+  SystemZVectorConstantInfo(BuildVectorSDNode *BVN);
+  bool isVectorConstantLegal(const SystemZSubtarget &Subtarget);
+};
+
 } // end namespace llvm
 
 #endif