[TableGen] Remove getHash support from DAGISelMatcher. It hasn't been used for some time.

llvm-svn: 268706

1 files changed, 0 insertions, 48 deletions

diff --git a/llvm/utils/TableGen/DAGISelMatcher.cpp b/llvm/utils/TableGen/DAGISelMatcher.cpp
index da5fc4da560..6ac3958e0f4 100644
--- a/llvm/utils/TableGen/DAGISelMatcher.cpp
+++ b/llvm/utils/TableGen/DAGISelMatcher.cpp
@@ -283,44 +283,6 @@ void CompleteMatchMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
   OS.indent(indent) << "Dst = " << *Pattern.getDstPattern() << "\n";
 }
 
-// getHashImpl Implementation.
-
-unsigned CheckPatternPredicateMatcher::getHashImpl() const {
-  return HashString(Predicate);
-}
-
-unsigned CheckPredicateMatcher::getHashImpl() const {
-  return HashString(getPredicate().getFnName());
-}
-
-unsigned CheckOpcodeMatcher::getHashImpl() const {
-  return HashString(Opcode.getEnumName());
-}
-
-unsigned CheckCondCodeMatcher::getHashImpl() const {
-  return HashString(CondCodeName);
-}
-
-unsigned CheckValueTypeMatcher::getHashImpl() const {
-  return HashString(TypeName);
-}
-
-unsigned EmitStringIntegerMatcher::getHashImpl() const {
-  return HashString(Val) ^ VT;
-}
-
-template<typename It>
-static unsigned HashUnsigneds(It I, It E) {
-  unsigned Result = 0;
-  for (; I != E; ++I)
-    Result = (Result<<3) ^ *I;
-  return Result;
-}
-
-unsigned EmitMergeInputChainsMatcher::getHashImpl() const {
-  return HashUnsigneds(ChainNodes.begin(), ChainNodes.end());
-}
-
 bool CheckOpcodeMatcher::isEqualImpl(const Matcher *M) const {
   // Note: pointer equality isn't enough here, we have to check the enum names
   // to ensure that the nodes are for the same opcode.
@@ -337,20 +299,10 @@ bool EmitNodeMatcherCommon::isEqualImpl(const Matcher *m) const {
          M->NumFixedArityOperands == NumFixedArityOperands;
 }
 
-unsigned EmitNodeMatcherCommon::getHashImpl() const {
-  return (HashString(OpcodeName) << 4) | Operands.size();
-}
-
-
 void EmitNodeMatcher::anchor() { }
 
 void MorphNodeToMatcher::anchor() { }
 
-unsigned CompleteMatchMatcher::getHashImpl() const {
-  return HashUnsigneds(Results.begin(), Results.end()) ^
-          ((unsigned)(intptr_t)&Pattern << 8);
-}
-
 // isContradictoryImpl Implementations.
 
 static bool TypesAreContradictory(MVT::SimpleValueType T1,