major surgery on tblgen: generalize TreePatternNode

to maintain a list of types (one for each result of
the node) instead of a single type.  There are liberal
hacks added to emulate the old behavior in various
situations, but they can start disolving now.

llvm-svn: 98999

1 files changed, 14 insertions, 7 deletions

diff --git a/llvm/utils/TableGen/FastISelEmitter.cpp b/llvm/utils/TableGen/FastISelEmitter.cpp
index 52f9563ec72..23f09a5bd31 100644
--- a/llvm/utils/TableGen/FastISelEmitter.cpp
+++ b/llvm/utils/TableGen/FastISelEmitter.cpp
@@ -70,13 +70,16 @@ struct OperandsSignature {
     for (unsigned i = 0, e = InstPatNode->getNumChildren(); i != e; ++i) {
       TreePatternNode *Op = InstPatNode->getChild(i);
       // For now, filter out any operand with a predicate.
-      if (!Op->getPredicateFns().empty())
-        return false;
       // For now, filter out any operand with multiple values.
-      assert(Op->hasTypeSet() && "Type infererence not done?");
+      if (!Op->getPredicateFns().empty() ||
+          Op->getNumTypes() != 1)
+        return false;
+      
+      assert(Op->hasTypeSet(0) && "Type infererence not done?");
       // For now, all the operands must have the same type.
-      if (Op->getType() != VT)
+      if (Op->getType(0) != VT)
         return false;
+      
       if (!Op->isLeaf()) {
         if (Op->getOperator()->getName() == "imm") {
           Operands.push_back("i");
@@ -295,10 +298,14 @@ void FastISelMap::CollectPatterns(CodeGenDAGPatterns &CGP) {
 
     Record *InstPatOp = InstPatNode->getOperator();
     std::string OpcodeName = getOpcodeName(InstPatOp, CGP);
-    MVT::SimpleValueType RetVT = InstPatNode->getType();
+    assert(InstPatNode->getNumTypes() <= 1);
+    MVT::SimpleValueType RetVT = MVT::isVoid;
+    if (InstPatNode->getNumTypes()) RetVT = InstPatNode->getType(0);
     MVT::SimpleValueType VT = RetVT;
-    if (InstPatNode->getNumChildren())
-      VT = InstPatNode->getChild(0)->getType();
+    if (InstPatNode->getNumChildren()) {
+      assert(InstPatNode->getChild(0)->getNumTypes() == 1);
+      VT = InstPatNode->getChild(0)->getType(0);
+    }
 
     // For now, filter out instructions which just set a register to
     // an Operand or an immediate, like MOV32ri.