Vendor import of llvm trunk r135360:

http://llvm.org/svn/llvm-project/llvm/trunk@135360

1 files changed, 15 insertions, 20 deletions

diff --git a/utils/TableGen/DAGISelMatcherGen.cpp b/utils/TableGen/DAGISelMatcherGen.cpp
index 402a239..c5897c7 100644
--- a/utils/TableGen/DAGISelMatcherGen.cpp
+++ b/utils/TableGen/DAGISelMatcherGen.cpp
@@ -25,12 +25,12 @@ static MVT::SimpleValueType getRegisterValueType(Record *R,
                                                  const CodeGenTarget &T) {
   bool FoundRC = false;
   MVT::SimpleValueType VT = MVT::Other;
+  const CodeGenRegister *Reg = T.getRegBank().getReg(R);
   const std::vector<CodeGenRegisterClass> &RCs = T.getRegisterClasses();
-  std::vector<Record*>::const_iterator Element;
 
   for (unsigned rc = 0, e = RCs.size(); rc != e; ++rc) {
     const CodeGenRegisterClass &RC = RCs[rc];
-    if (!std::count(RC.Elements.begin(), RC.Elements.end(), R))
+    if (!RC.contains(Reg))
       continue;
 
     if (!FoundRC) {
@@ -93,10 +93,6 @@ namespace {
     /// CurPredicate - As we emit matcher nodes, this points to the latest check
     /// which should have future checks stuck into its Next position.
     Matcher *CurPredicate;
-
-    /// RegisterDefMap - A map of register record definitions to the
-    /// corresponding target CodeGenRegister entry.
-    DenseMap<const Record *, const CodeGenRegister *> RegisterDefMap;
   public:
     MatcherGen(const PatternToMatch &pattern, const CodeGenDAGPatterns &cgp);
 
@@ -165,12 +161,6 @@ MatcherGen::MatcherGen(const PatternToMatch &pattern,
 
   // If there are types that are manifestly known, infer them.
   InferPossibleTypes();
-
-  // Populate the map from records to CodeGenRegister entries.
-  const CodeGenTarget &CGT = CGP.getTargetInfo();
-  const std::vector<CodeGenRegister> &Registers = CGT.getRegisters();
-  for (unsigned i = 0, e = Registers.size(); i != e; ++i)
-    RegisterDefMap[Registers[i].TheDef] = &Registers[i];
 }
 
 /// InferPossibleTypes - As we emit the pattern, we end up generating type
@@ -234,6 +224,7 @@ void MatcherGen::EmitLeafMatchCode(const TreePatternNode *N) {
   Record *LeafRec = DI->getDef();
   if (// Handle register references.  Nothing to do here, they always match.
       LeafRec->isSubClassOf("RegisterClass") ||
+      LeafRec->isSubClassOf("RegisterOperand") ||
       LeafRec->isSubClassOf("PointerLikeRegClass") ||
       LeafRec->isSubClassOf("SubRegIndex") ||
       // Place holder for SRCVALUE nodes. Nothing to do here.
@@ -589,14 +580,16 @@ void MatcherGen::EmitResultLeafAsOperand(const TreePatternNode *N,
 
   // If this is an explicit register reference, handle it.
   if (DefInit *DI = dynamic_cast<DefInit*>(N->getLeafValue())) {
-    if (DI->getDef()->isSubClassOf("Register")) {
-      AddMatcher(new EmitRegisterMatcher(RegisterDefMap[DI->getDef()],
-                                         N->getType(0)));
+    Record *Def = DI->getDef();
+    if (Def->isSubClassOf("Register")) {
+      const CodeGenRegister *Reg =
+        CGP.getTargetInfo().getRegBank().getReg(Def);
+      AddMatcher(new EmitRegisterMatcher(Reg, N->getType(0)));
       ResultOps.push_back(NextRecordedOperandNo++);
       return;
     }
 
-    if (DI->getDef()->getName() == "zero_reg") {
+    if (Def->getName() == "zero_reg") {
       AddMatcher(new EmitRegisterMatcher(0, N->getType(0)));
       ResultOps.push_back(NextRecordedOperandNo++);
       return;
@@ -604,16 +597,18 @@ void MatcherGen::EmitResultLeafAsOperand(const TreePatternNode *N,
 
     // Handle a reference to a register class. This is used
     // in COPY_TO_SUBREG instructions.
-    if (DI->getDef()->isSubClassOf("RegisterClass")) {
-      std::string Value = getQualifiedName(DI->getDef()) + "RegClassID";
+    if (Def->isSubClassOf("RegisterOperand"))
+      Def = Def->getValueAsDef("RegClass");
+    if (Def->isSubClassOf("RegisterClass")) {
+      std::string Value = getQualifiedName(Def) + "RegClassID";
       AddMatcher(new EmitStringIntegerMatcher(Value, MVT::i32));
       ResultOps.push_back(NextRecordedOperandNo++);
       return;
     }
 
     // Handle a subregister index. This is used for INSERT_SUBREG etc.
-    if (DI->getDef()->isSubClassOf("SubRegIndex")) {
-      std::string Value = getQualifiedName(DI->getDef());
+    if (Def->isSubClassOf("SubRegIndex")) {
+      std::string Value = getQualifiedName(Def);
       AddMatcher(new EmitStringIntegerMatcher(Value, MVT::i32));
       ResultOps.push_back(NextRecordedOperandNo++);
       return;