Close list item tag, to conform with the style in this file. It's optional

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

diff --git a/utils/TableGen/CallingConvEmitter.cpp b/utils/TableGen/CallingConvEmitter.cpp
index 977191f92d3cb831a08e6b659d061a6c1aca8259..a9829851d7111e2c7db71a990cf823c4cafc6345 100644 (file)
--- a/utils/TableGen/CallingConvEmitter.cpp
+++ b/utils/TableGen/CallingConvEmitter.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Chris Lattner and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -26,9 +26,11 @@ void CallingConvEmitter::run(std::ostream &O) {
   // other.
   for (unsigned i = 0, e = CCs.size(); i != e; ++i) {
     O << "static bool " << CCs[i]->getName()
-      << "(unsigned ValNo, MVT::ValueType ValVT, MVT::ValueType LocVT,\n"
+      << "(unsigned ValNo, MVT ValVT,\n"
       << std::string(CCs[i]->getName().size()+13, ' ')
-      << "CCValAssign::LocInfo LocInfo, unsigned ArgFlags, CCState &State);\n";
+      << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n"
+      << std::string(CCs[i]->getName().size()+13, ' ')
+      << "ISD::ArgFlagsTy ArgFlags, CCState &State);\n";
   }
   
   // Emit each calling convention description in full.
@@ -42,11 +44,11 @@ void CallingConvEmitter::EmitCallingConv(Record *CC, std::ostream &O) {
   Counter = 0;
 
   O << "\n\nstatic bool " << CC->getName()
-    << "(unsigned ValNo, MVT::ValueType ValVT, MVT::ValueType LocVT,\n"
+    << "(unsigned ValNo, MVT ValVT,\n"
+    << std::string(CC->getName().size()+13, ' ')
+    << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n"
     << std::string(CC->getName().size()+13, ' ')
-    << "CCValAssign::LocInfo LocInfo, "
-    << "unsigned ArgFlags, CCState &State) {\n";
-      
+    << "ISD::ArgFlagsTy ArgFlags, CCState &State) {\n";
   // Emit all of the actions, in order.
   for (unsigned i = 0, e = CCActions->getSize(); i != e; ++i) {
     O << "\n";
@@ -64,15 +66,15 @@ void CallingConvEmitter::EmitAction(Record *Action,
   if (Action->isSubClassOf("CCPredicateAction")) {
     O << IndentStr << "if (";
     
-    if (Action->isSubClassOf("CCMatchType")) {
+    if (Action->isSubClassOf("CCIfType")) {
       ListInit *VTs = Action->getValueAsListInit("VTs");
       for (unsigned i = 0, e = VTs->getSize(); i != e; ++i) {
         Record *VT = VTs->getElementAsRecord(i);
-        if (i != 0) O << " || \n    " << IndentStr;
+        if (i != 0) O << " ||\n    " << IndentStr;
         O << "LocVT == " << getEnumName(getValueType(VT));
       }
 
-    } else if (Action->isSubClassOf("CCMatchIf")) {
+    } else if (Action->isSubClassOf("CCIf")) {
       O << Action->getValueAsString("Predicate");
     } else {
       Action->dump();
@@ -109,20 +111,87 @@ void CallingConvEmitter::EmitAction(Record *Action,
         << "Reg, LocVT, LocInfo));\n";
       O << IndentStr << "  return false;\n";
       O << IndentStr << "}\n";
+    } else if (Action->isSubClassOf("CCAssignToRegWithShadow")) {
+      ListInit *RegList = Action->getValueAsListInit("RegList");
+      ListInit *ShadowRegList = Action->getValueAsListInit("ShadowRegList");
+      if (ShadowRegList->getSize() >0 &&
+          ShadowRegList->getSize() != RegList->getSize())
+        throw "Invalid length of list of shadowed registers";
+
+      if (RegList->getSize() == 1) {
+        O << IndentStr << "if (unsigned Reg = State.AllocateReg(";
+        O << getQualifiedName(RegList->getElementAsRecord(0));
+        O << ", " << getQualifiedName(ShadowRegList->getElementAsRecord(0));
+        O << ")) {\n";
+      } else {
+        unsigned RegListNumber = ++Counter;
+        unsigned ShadowRegListNumber = ++Counter;
+
+        O << IndentStr << "static const unsigned RegList" << RegListNumber
+          << "[] = {\n";
+        O << IndentStr << "  ";
+        for (unsigned i = 0, e = RegList->getSize(); i != e; ++i) {
+          if (i != 0) O << ", ";
+          O << getQualifiedName(RegList->getElementAsRecord(i));
+        }
+        O << "\n" << IndentStr << "};\n";
+
+        O << IndentStr << "static const unsigned RegList"
+          << ShadowRegListNumber << "[] = {\n";
+        O << IndentStr << "  ";
+        for (unsigned i = 0, e = ShadowRegList->getSize(); i != e; ++i) {
+          if (i != 0) O << ", ";
+          O << getQualifiedName(ShadowRegList->getElementAsRecord(i));
+        }
+        O << "\n" << IndentStr << "};\n";
+
+        O << IndentStr << "if (unsigned Reg = State.AllocateReg(RegList"
+          << RegListNumber << ", " << "RegList" << ShadowRegListNumber
+          << ", " << RegList->getSize() << ")) {\n";
+      }
+      O << IndentStr << "  State.addLoc(CCValAssign::getReg(ValNo, ValVT, "
+        << "Reg, LocVT, LocInfo));\n";
+      O << IndentStr << "  return false;\n";
+      O << IndentStr << "}\n";
     } else if (Action->isSubClassOf("CCAssignToStack")) {
       int Size = Action->getValueAsInt("Size");
       int Align = Action->getValueAsInt("Align");
-      
+
       O << IndentStr << "unsigned Offset" << ++Counter
-        << " = State.AllocateStack(" << Size << ", " << Align << ");\n";
-      O << IndentStr << "State.addLoc(CCValAssign::getMem(ValNo, ArgVT, Offset"
+        << " = State.AllocateStack(";
+      if (Size)
+        O << Size << ", ";
+      else
+        O << "\n" << IndentStr << "  State.getTarget().getTargetData()"
+          "->getTypePaddedSize(LocVT.getTypeForMVT()), ";
+      if (Align)
+        O << Align;
+      else
+        O << "\n" << IndentStr << "  State.getTarget().getTargetData()"
+          "->getABITypeAlignment(LocVT.getTypeForMVT())";
+      O << ");\n" << IndentStr
+        << "State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset"
         << Counter << ", LocVT, LocInfo));\n";
       O << IndentStr << "return false;\n";
     } else if (Action->isSubClassOf("CCPromoteToType")) {
-      
+      Record *DestTy = Action->getValueAsDef("DestTy");
+      O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
+      O << IndentStr << "if (ArgFlags.isSExt())\n"
+        << IndentStr << IndentStr << "LocInfo = CCValAssign::SExt;\n"
+        << IndentStr << "else if (ArgFlags.isZExt())\n"
+        << IndentStr << IndentStr << "LocInfo = CCValAssign::ZExt;\n"
+        << IndentStr << "else\n"
+        << IndentStr << IndentStr << "LocInfo = CCValAssign::AExt;\n";
+    } else if (Action->isSubClassOf("CCPassByVal")) {
+      int Size = Action->getValueAsInt("Size");
+      int Align = Action->getValueAsInt("Align");
+      O << IndentStr
+        << "State.HandleByVal(ValNo, ValVT, LocVT, LocInfo, "
+        << Size << ", " << Align << ", ArgFlags);\n";
+      O << IndentStr << "return false;\n";
     } else {
       Action->dump();
       throw "Unknown CCAction!";
     }
   }
-}
\ No newline at end of file
+}