MC: Clean up method names in MCContext.

[oota-llvm.git] / lib / Target / SystemZ / SystemZISelLowering.h

diff --git a/lib/Target/SystemZ/SystemZISelLowering.h b/lib/Target/SystemZ/SystemZISelLowering.h
index 8319c01fc5e270b2c95f15e5f58ee2b319d93c34..b001abc693d6fbf08a47e499cecefb0cd986d846 100644 (file)
--- a/lib/Target/SystemZ/SystemZISelLowering.h
+++ b/lib/Target/SystemZ/SystemZISelLowering.h
@@ -22,7 +22,7 @@
 
 namespace llvm {
 namespace SystemZISD {
-enum {
+enum NodeType : unsigned {
   FIRST_NUMBER = ISD::BUILTIN_OP_END,
 
   // Return with a flag operand.  Operand 0 is the chain operand.
@@ -201,6 +201,20 @@ enum {
   // Pack vector operands 0 and 1 into a single vector with half-sized elements.
   PACK,
 
+  // Likewise, but saturate the result and set CC.  PACKS_CC does signed
+  // saturation and PACKLS_CC does unsigned saturation.
+  PACKS_CC,
+  PACKLS_CC,
+
+  // Unpack the first half of vector operand 0 into double-sized elements.
+  // UNPACK_HIGH sign-extends and UNPACKL_HIGH zero-extends.
+  UNPACK_HIGH,
+  UNPACKL_HIGH,
+
+  // Likewise for the second half.
+  UNPACK_LOW,
+  UNPACKL_LOW,
+
   // Shift each element of vector operand 0 by the number of bits specified
   // by scalar operand 1.
   VSHL_BY_SCALAR,
@@ -219,6 +233,11 @@ enum {
   VICMPH,
   VICMPHL,
 
+  // Likewise, but also set the condition codes on the result.
+  VICMPES,
+  VICMPHS,
+  VICMPHLS,
+
   // Compare floating-point vector operands 0 and 1 to preoduce the usual 0/-1
   // vector result.  VFCMPE is for "ordered and equal", VFCMPH for "ordered and
   // greater than" and VFCMPHE for "ordered and greater than or equal to".
@@ -226,6 +245,36 @@ enum {
   VFCMPH,
   VFCMPHE,
 
+  // Likewise, but also set the condition codes on the result.
+  VFCMPES,
+  VFCMPHS,
+  VFCMPHES,
+
+  // Test floating-point data class for vectors.
+  VFTCI,
+
+  // Extend the even f32 elements of vector operand 0 to produce a vector
+  // of f64 elements.
+  VEXTEND,
+
+  // Round the f64 elements of vector operand 0 to f32s and store them in the
+  // even elements of the result.
+  VROUND,
+
+  // AND the two vector operands together and set CC based on the result.
+  VTM,
+
+  // String operations that set CC as a side-effect.
+  VFAE_CC,
+  VFAEZ_CC,
+  VFEE_CC,
+  VFEEZ_CC,
+  VFENE_CC,
+  VFENEZ_CC,
+  VISTR_CC,
+  VSTRC_CC,
+  VSTRCZ_CC,
+
   // Wrappers around the inner loop of an 8- or 16-bit ATOMIC_SWAP or
   // ATOMIC_LOAD_<op>.
   //
@@ -298,6 +347,23 @@ public:
     // want to clobber the upper 32 bits of a GPR unnecessarily.
     return MVT::i32;
   }
+  TargetLoweringBase::LegalizeTypeAction getPreferredVectorAction(EVT VT)
+    const override {
+    // Widen subvectors to the full width rather than promoting integer
+    // elements.  This is better because:
+    //
+    // (a) it means that we can handle the ABI for passing and returning
+    //     sub-128 vectors without having to handle them as legal types.
+    //
+    // (b) we don't have instructions to extend on load and truncate on store,
+    //     so promoting the integers is less efficient.
+    //
+    // (c) there are no multiplication instructions for the widest integer
+    //     type (v2i64).
+    if (VT.getVectorElementType().getSizeInBits() % 8 == 0)
+      return TypeWidenVector;
+    return TargetLoweringBase::getPreferredVectorAction(VT);
+  }
   EVT getSetCCResultType(LLVMContext &, EVT) const override;
   bool isFMAFasterThanFMulAndFAdd(EVT VT) const override;
   bool isFPImmLegal(const APFloat &Imm, EVT VT) const override;
@@ -404,11 +470,14 @@ private:
   SDValue lowerSTACKRESTORE(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerPREFETCH(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const;
+  SDValue lowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
+  SDValue lowerExtendVectorInreg(SDValue Op, SelectionDAG &DAG,
+                                unsigned UnpackHigh) const;
   SDValue lowerShift(SDValue Op, SelectionDAG &DAG, unsigned ByScalar) const;
 
   SDValue combineExtract(SDLoc DL, EVT ElemVT, EVT VecVT, SDValue OrigOp,