[SelectionDAG] Add a SDTCisSameSizeAs type constraint that can be used to ensure...

[oota-llvm.git] / utils / TableGen / CodeGenDAGPatterns.h

diff --git a/utils/TableGen/CodeGenDAGPatterns.h b/utils/TableGen/CodeGenDAGPatterns.h
index f330e558f56a7b9ed2d74524c1ad92ee47a71e8e..76c9cefea50fd8f86238580094a10c8df8906130 100644 (file)
--- a/utils/TableGen/CodeGenDAGPatterns.h
+++ b/utils/TableGen/CodeGenDAGPatterns.h
@@ -148,6 +148,9 @@ namespace EEVT {
     /// be a vector with same num elements as VT.
     bool EnforceVectorSameNumElts(EEVT::TypeSet &VT, TreePattern &TP);
 
+    /// EnforceSameSize - 'this' is now constrained to be the same size as VT.
+    bool EnforceSameSize(EEVT::TypeSet &VT, TreePattern &TP);
+
     bool operator!=(const TypeSet &RHS) const { return TypeVec != RHS.TypeVec; }
     bool operator==(const TypeSet &RHS) const { return TypeVec == RHS.TypeVec; }
 
@@ -173,7 +176,7 @@ struct SDTypeConstraint {
   enum {
     SDTCisVT, SDTCisPtrTy, SDTCisInt, SDTCisFP, SDTCisVec, SDTCisSameAs,
     SDTCisVTSmallerThanOp, SDTCisOpSmallerThanOp, SDTCisEltOfVec,
-    SDTCisSubVecOfVec, SDTCVecEltisVT, SDTCisSameNumEltsAs
+    SDTCisSubVecOfVec, SDTCVecEltisVT, SDTCisSameNumEltsAs, SDTCisSameSizeAs
   } ConstraintType;
 
   union {   // The discriminated union.
@@ -201,6 +204,9 @@ struct SDTypeConstraint {
     struct {
       unsigned OtherOperandNum;
     } SDTCisSameNumEltsAs_Info;
+    struct {
+      unsigned OtherOperandNum;
+    } SDTCisSameSizeAs_Info;
   } x;
 
   /// ApplyTypeConstraint - Given a node in a pattern, apply this type