Assembly parsing for 3-register variant of VLD1.

[oota-llvm.git] / utils / TableGen / DAGISelMatcherOpt.cpp

diff --git a/utils/TableGen/DAGISelMatcherOpt.cpp b/utils/TableGen/DAGISelMatcherOpt.cpp
index 99349dd279be5049d78bae7dd25fd7bbbf1ed520..f9964223c24850f6918793da6a3da243c3e18395 100644 (file)
--- a/utils/TableGen/DAGISelMatcherOpt.cpp
+++ b/utils/TableGen/DAGISelMatcherOpt.cpp
@@ -18,7 +18,6 @@
 #include "llvm/ADT/StringSet.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
-#include <vector>
 using namespace llvm;
 
 /// ContractNodes - Turn multiple matcher node patterns like 'MoveChild+Record'
@@ -44,11 +43,14 @@ static void ContractNodes(OwningPtr<Matcher> &MatcherPtr,
   if (MoveChildMatcher *MC = dyn_cast<MoveChildMatcher>(N)) {
     Matcher *New = 0;
     if (RecordMatcher *RM = dyn_cast<RecordMatcher>(MC->getNext()))
-      New = new RecordChildMatcher(MC->getChildNo(), RM->getWhatFor(),
-                                   RM->getResultNo());
+      if (MC->getChildNo() < 8)  // Only have RecordChild0...7
+        New = new RecordChildMatcher(MC->getChildNo(), RM->getWhatFor(),
+                                     RM->getResultNo());
     
-    if (CheckTypeMatcher *CT= dyn_cast<CheckTypeMatcher>(MC->getNext()))
-      New = new CheckChildTypeMatcher(MC->getChildNo(), CT->getType());
+    if (CheckTypeMatcher *CT = dyn_cast<CheckTypeMatcher>(MC->getNext()))
+      if (MC->getChildNo() < 8 &&  // Only have CheckChildType0...7
+          CT->getResNo() == 0)     // CheckChildType checks res #0
+        New = new CheckChildTypeMatcher(MC->getChildNo(), CT->getType());
     
     if (New) {
       // Insert the new node.
@@ -72,7 +74,7 @@ static void ContractNodes(OwningPtr<Matcher> &MatcherPtr,
   // MarkFlagResults->EmitNode->CompleteMatch when we can to encourage
   // MorphNodeTo formation.  This is safe because MarkFlagResults never refers
   // to the root of the pattern.
-  if (isa<EmitNodeMatcher>(N) && isa<MarkFlagResultsMatcher>(N->getNext()) &&
+  if (isa<EmitNodeMatcher>(N) && isa<MarkGlueResultsMatcher>(N->getNext()) &&
       isa<CompleteMatchMatcher>(N->getNext()->getNext())) {
     // Unlink the two nodes from the list.
     Matcher *EmitNode = MatcherPtr.take();
@@ -97,7 +99,7 @@ static void ContractNodes(OwningPtr<Matcher> &MatcherPtr,
         if (CM->getResult(i) != RootResultFirst+i)
           ResultsMatch = false;
       
-      // If the selected node defines a subset of the flag/chain results, we
+      // If the selected node defines a subset of the glue/chain results, we
       // can't use MorphNodeTo.  For example, we can't use MorphNodeTo if the
       // matched pattern has a chain but the root node doesn't.
       const PatternToMatch &Pattern = CM->getPattern();
@@ -106,23 +108,23 @@ static void ContractNodes(OwningPtr<Matcher> &MatcherPtr,
           Pattern.getSrcPattern()->NodeHasProperty(SDNPHasChain, CGP))
         ResultsMatch = false;
 
-      // If the matched node has a flag and the output root doesn't, we can't
+      // If the matched node has glue and the output root doesn't, we can't
       // use MorphNodeTo.
       //
-      // NOTE: Strictly speaking, we don't have to check for the flag here
+      // NOTE: Strictly speaking, we don't have to check for glue here
       // because the code in the pattern generator doesn't handle it right.  We
       // do it anyway for thoroughness.
       if (!EN->hasOutFlag() &&
-          Pattern.getSrcPattern()->NodeHasProperty(SDNPOutFlag, CGP))
+          Pattern.getSrcPattern()->NodeHasProperty(SDNPOutGlue, CGP))
         ResultsMatch = false;
       
       
       // If the root result node defines more results than the source root node
-      // *and* has a chain or flag input, then we can't match it because it
-      // would end up replacing the extra result with the chain/flag.
+      // *and* has a chain or glue input, then we can't match it because it
+      // would end up replacing the extra result with the chain/glue.
 #if 0
-      if ((EN->hasFlag() || EN->hasChain()) &&
-          EN->getNumNonChainFlagVTs() > ... need to get no results reliably ...)
+      if ((EN->hasGlue() || EN->hasChain()) &&
+          EN->getNumNonChainGlueVTs() > ... need to get no results reliably ...)
         ResultMatch = false;
 #endif
           
@@ -343,7 +345,7 @@ static void FactorNodes(OwningPtr<Matcher> &MatcherPtr) {
     if (Scan != e &&
         // Don't print it's obvious nothing extra could be merged anyway.
         Scan+1 != e) {
-      /*DEBUG(*/errs() << "Couldn't merge this:\n";
+      DEBUG(errs() << "Couldn't merge this:\n";
             Optn->print(errs(), 4);
             errs() << "into this:\n";
             OptionsToMatch[Scan]->print(errs(), 4);
@@ -351,7 +353,7 @@ static void FactorNodes(OwningPtr<Matcher> &MatcherPtr) {
               OptionsToMatch[Scan+1]->printOne(errs());
             if (Scan+2 < e)
               OptionsToMatch[Scan+2]->printOne(errs());
-            errs() << "\n";
+            errs() << "\n");
     }
     
     // If we only found one option starting with this matcher, no factoring is
@@ -418,10 +420,12 @@ static void FactorNodes(OwningPtr<Matcher> &MatcherPtr) {
       CheckTypeMatcher *CTM =
         cast_or_null<CheckTypeMatcher>(FindNodeWithKind(NewOptionsToMatch[i],
                                                         Matcher::CheckType));
-      if (CTM == 0 || 
+      if (CTM == 0 ||
           // iPTR checks could alias any other case without us knowing, don't
           // bother with them.
           CTM->getType() == MVT::iPTR ||
+          // SwitchType only works for result #0.
+          CTM->getResNo() != 0 ||
           // If the CheckType isn't at the start of the list, see if we can move
           // it there.
           !CTM->canMoveBefore(NewOptionsToMatch[i])) {
@@ -486,7 +490,7 @@ static void FactorNodes(OwningPtr<Matcher> &MatcherPtr) {
       MatcherPtr.reset(new SwitchTypeMatcher(&Cases[0], Cases.size()));
     } else {
       // If we factored and ended up with one case, create it now.
-      MatcherPtr.reset(new CheckTypeMatcher(Cases[0].first));
+      MatcherPtr.reset(new CheckTypeMatcher(Cases[0].first, 0));
       MatcherPtr->setNext(Cases[0].second);
     }
     return;