commit ea391a2f2912be076db105769e4e95e3beb45915
author Nate Begeman <natebegeman@mac.com> Sat Feb 09 01:37:05 2008 +0000
committer Nate Begeman <natebegeman@mac.com> Sat Feb 09 01:37:05 2008 +0000
tree f6e59a1f1536f34b5e2c10427ab94fae3917a5b6
parent dd56a54e900c2693fa2d11ae2b66d357c5b68dd5

Tablegen support for insert & extract element matching


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46901 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/CodeGenDAGPatterns.cpp

diff --git a/utils/TableGen/CodeGenDAGPatterns.cpp b/utils/TableGen/CodeGenDAGPatterns.cpp
index 14b2b80..146488e 100644
--- a/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -112,6 +112,10 @@
     ConstraintType = SDTCisIntVectorOfSameSize;
     x.SDTCisIntVectorOfSameSize_Info.OtherOperandNum =
       R->getValueAsInt("OtherOpNum");
+  } else if (R->isSubClassOf("SDTCisEltOfVec")) {
+    ConstraintType = SDTCisEltOfVec;
+    x.SDTCisEltOfVec_Info.OtherOperandNum =
+      R->getValueAsInt("OtherOpNum");
   } else {
     cerr << "Unrecognized SDTypeConstraint '" << R->getName() << "'!\n";
     exit(1);
@@ -288,6 +292,19 @@
     }
     return false;
   }
+  case SDTCisEltOfVec: {
+    TreePatternNode *OtherOperand =
+      getOperandNum(x.SDTCisIntVectorOfSameSize_Info.OtherOperandNum,
+                    N, NumResults);
+    if (OtherOperand->hasTypeSet()) {
+      if (!MVT::isVector(OtherOperand->getTypeNum(0)))
+        TP.error(N->getOperator()->getName() + " VT operand must be a vector!");
+      MVT::ValueType IVT = OtherOperand->getTypeNum(0);
+      IVT = MVT::getVectorElementType(IVT);
+      return NodeToApply->UpdateNodeType(IVT, TP);
+    }
+    return false;
+  }
   }  
   return false;
 }

utils/TableGen/CodeGenDAGPatterns.h

diff --git a/utils/TableGen/CodeGenDAGPatterns.h b/utils/TableGen/CodeGenDAGPatterns.h
index d62b279..44c154a 100644
--- a/utils/TableGen/CodeGenDAGPatterns.h
+++ b/utils/TableGen/CodeGenDAGPatterns.h
@@ -56,7 +56,8 @@
   unsigned OperandNo;   // The operand # this constraint applies to.
   enum { 
     SDTCisVT, SDTCisPtrTy, SDTCisInt, SDTCisFP, SDTCisSameAs, 
-    SDTCisVTSmallerThanOp, SDTCisOpSmallerThanOp, SDTCisIntVectorOfSameSize
+    SDTCisVTSmallerThanOp, SDTCisOpSmallerThanOp, SDTCisIntVectorOfSameSize,
+    SDTCisEltOfVec
   } ConstraintType;
   
   union {   // The discriminated union.
@@ -75,6 +76,9 @@
     struct {
       unsigned OtherOperandNum;
     } SDTCisIntVectorOfSameSize_Info;
+    struct {
+      unsigned OtherOperandNum;
+    } SDTCisEltOfVec_Info;
   } x;
 
   /// ApplyTypeConstraint - Given a node in a pattern, apply this type