Add 'virtual' keywoards to output file for overridden functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164002 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/TableGen/DAGISelMatcherEmitter.cpp b/utils/TableGen/DAGISelMatcherEmitter.cpp
index 1445edbe720a8d79f52d6addf3056d00bd098192..713f1743c143ed9e1bf3ee3a2a19aa03df42903e 100644 (file)
--- a/utils/TableGen/DAGISelMatcherEmitter.cpp
+++ b/utils/TableGen/DAGISelMatcherEmitter.cpp
@@ -598,7 +598,7 @@ EmitMatcherList(const Matcher *N, unsigned Indent, unsigned CurrentIdx,
 void MatcherTableEmitter::EmitPredicateFunctions(formatted_raw_ostream &OS) {
   // Emit pattern predicates.
   if (!PatternPredicates.empty()) {
-    OS << "bool CheckPatternPredicate(unsigned PredNo) const {\n";
+    OS << "virtual bool CheckPatternPredicate(unsigned PredNo) const {\n";
     OS << "  switch (PredNo) {\n";
     OS << "  default: llvm_unreachable(\"Invalid predicate in table?\");\n";
     for (unsigned i = 0, e = PatternPredicates.size(); i != e; ++i)
@@ -616,7 +616,8 @@ void MatcherTableEmitter::EmitPredicateFunctions(formatted_raw_ostream &OS) {
     PFsByName[I->first->getName()] = I->second;
 
   if (!NodePredicates.empty()) {
-    OS << "bool CheckNodePredicate(SDNode *Node, unsigned PredNo) const {\n";
+    OS << "virtual bool CheckNodePredicate(SDNode *Node,\n";
+    OS << "                                unsigned PredNo) const {\n";
     OS << "  switch (PredNo) {\n";
     OS << "  default: llvm_unreachable(\"Invalid predicate in table?\");\n";
     for (unsigned i = 0, e = NodePredicates.size(); i != e; ++i) {
@@ -635,8 +636,8 @@ void MatcherTableEmitter::EmitPredicateFunctions(formatted_raw_ostream &OS) {
   // Emit CompletePattern matchers.
   // FIXME: This should be const.
   if (!ComplexPatterns.empty()) {
-    OS << "bool CheckComplexPattern(SDNode *Root, SDNode *Parent, SDValue N,\n";
-    OS << "                         unsigned PatternNo,\n";
+    OS << "virtual bool CheckComplexPattern(SDNode *Root, SDNode *Parent,\n";
+    OS << "                                 SDValue N, unsigned PatternNo,\n";
     OS << "         SmallVectorImpl<std::pair<SDValue, SDNode*> > &Result) {\n";
     OS << "  unsigned NextRes = Result.size();\n";
     OS << "  switch (PatternNo) {\n";
@@ -676,7 +677,7 @@ void MatcherTableEmitter::EmitPredicateFunctions(formatted_raw_ostream &OS) {
   // Emit SDNodeXForm handlers.
   // FIXME: This should be const.
   if (!NodeXForms.empty()) {
-    OS << "SDValue RunSDNodeXForm(SDValue V, unsigned XFormNo) {\n";
+    OS << "virtual SDValue RunSDNodeXForm(SDValue V, unsigned XFormNo) {\n";
     OS << "  switch (XFormNo) {\n";
     OS << "  default: llvm_unreachable(\"Invalid xform # in table?\");\n";