X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=utils%2FTableGen%2FCallingConvEmitter.cpp;h=94f3c6518ca05c9bd9fddcbfd69ee69da0cdb4c9;hb=22bd64173981bf1251c4b3bfc684207340534ba3;hp=0ffbd683d3805ab7f597363120b30ff8d90fbb45;hpb=6bfa8a121d69f16ca2cb48360a182f52e5930f0e;p=oota-llvm.git

diff --git a/utils/TableGen/CallingConvEmitter.cpp b/utils/TableGen/CallingConvEmitter.cpp
index 0ffbd683d38..94f3c6518ca 100644
--- a/utils/TableGen/CallingConvEmitter.cpp
+++ b/utils/TableGen/CallingConvEmitter.cpp
@@ -12,13 +12,29 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "CallingConvEmitter.h"
-#include "Record.h"
 #include "CodeGenTarget.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
+#include "llvm/TableGen/TableGenBackend.h"
+#include <cassert>
 using namespace llvm;
 
-void CallingConvEmitter::run(std::ostream &O) {
-  EmitSourceFileHeader("Calling Convention Implementation Fragment", O);
+namespace {
+class CallingConvEmitter {
+  RecordKeeper &Records;
+public:
+  explicit CallingConvEmitter(RecordKeeper &R) : Records(R) {}
+
+  void run(raw_ostream &o);
+
+private:
+  void EmitCallingConv(Record *CC, raw_ostream &O);
+  void EmitAction(Record *Action, unsigned Indent, raw_ostream &O);
+  unsigned Counter;
+};
+} // End anonymous namespace
+
+void CallingConvEmitter::run(raw_ostream &O) {
 
   std::vector<Record*> CCs = Records.getAllDerivedDefinitions("CallingConv");
   
@@ -26,11 +42,11 @@ 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,\n"
+      << "(unsigned ValNo, MVT ValVT,\n"
       << std::string(CCs[i]->getName().size()+13, ' ')
-      << "MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,\n"
+      << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n"
       << std::string(CCs[i]->getName().size()+13, ' ')
-      << "unsigned ArgFlags, CCState &State);\n";
+      << "ISD::ArgFlagsTy ArgFlags, CCState &State);\n";
   }
   
   // Emit each calling convention description in full.
@@ -39,16 +55,16 @@ void CallingConvEmitter::run(std::ostream &O) {
 }
 
 
-void CallingConvEmitter::EmitCallingConv(Record *CC, std::ostream &O) {
+void CallingConvEmitter::EmitCallingConv(Record *CC, raw_ostream &O) {
   ListInit *CCActions = CC->getValueAsListInit("Actions");
   Counter = 0;
 
   O << "\n\nstatic bool " << CC->getName()
-    << "(unsigned ValNo, MVT::ValueType ValVT,\n"
+    << "(unsigned ValNo, MVT ValVT,\n"
     << std::string(CC->getName().size()+13, ' ')
-    << "MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,\n"
+    << "MVT LocVT, CCValAssign::LocInfo LocInfo,\n"
     << std::string(CC->getName().size()+13, ' ')
-    << "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";
@@ -60,7 +76,7 @@ void CallingConvEmitter::EmitCallingConv(Record *CC, std::ostream &O) {
 }
 
 void CallingConvEmitter::EmitAction(Record *Action,
-                                    unsigned Indent, std::ostream &O) {
+                                    unsigned Indent, raw_ostream &O) {
   std::string IndentStr = std::string(Indent, ' ');
   
   if (Action->isSubClassOf("CCPredicateAction")) {
@@ -78,7 +94,7 @@ void CallingConvEmitter::EmitAction(Record *Action,
       O << Action->getValueAsString("Predicate");
     } else {
       Action->dump();
-      throw "Unknown CCPredicateAction!";
+      PrintFatalError("Unknown CCPredicateAction!");
     }
     
     O << ") {\n";
@@ -96,7 +112,7 @@ void CallingConvEmitter::EmitAction(Record *Action,
         O << IndentStr << "if (unsigned Reg = State.AllocateReg(";
         O << getQualifiedName(RegList->getElementAsRecord(0)) << ")) {\n";
       } else {
-        O << IndentStr << "static const unsigned RegList" << ++Counter
+        O << IndentStr << "static const uint16_t RegList" << ++Counter
           << "[] = {\n";
         O << IndentStr << "  ";
         for (unsigned i = 0, e = RegList->getSize(); i != e; ++i) {
@@ -111,6 +127,48 @@ 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())
+        PrintFatalError("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 uint16_t 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 uint16_t 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");
@@ -120,13 +178,15 @@ void CallingConvEmitter::EmitAction(Record *Action,
       if (Size)
         O << Size << ", ";
       else
-        O << "\n" << IndentStr << "  State.getTarget().getTargetData()"
-          "->getABITypeSize(MVT::getTypeForValueType(LocVT)), ";
+        O << "\n" << IndentStr << "  State.getTarget().getDataLayout()"
+          "->getTypeAllocSize(EVT(LocVT).getTypeForEVT(State.getContext())), ";
       if (Align)
         O << Align;
       else
-        O << "\n" << IndentStr << "  State.getTarget().getTargetData()"
-          "->getABITypeAlignment(MVT::getTypeForValueType(LocVT))";
+        O << "\n" << IndentStr << "  State.getTarget().getDataLayout()"
+          "->getABITypeAlignment(EVT(LocVT).getTypeForEVT(State.getContext()))";
+      if (Action->isSubClassOf("CCAssignToStackWithShadow"))
+        O << ", " << getQualifiedName(Action->getValueAsDef("ShadowReg"));
       O << ");\n" << IndentStr
         << "State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset"
         << Counter << ", LocVT, LocInfo));\n";
@@ -134,12 +194,20 @@ void CallingConvEmitter::EmitAction(Record *Action,
     } else if (Action->isSubClassOf("CCPromoteToType")) {
       Record *DestTy = Action->getValueAsDef("DestTy");
       O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
-      O << IndentStr << "if (ArgFlags & ISD::ParamFlags::SExt)\n"
+      O << IndentStr << "if (ArgFlags.isSExt())\n"
         << IndentStr << IndentStr << "LocInfo = CCValAssign::SExt;\n"
-        << IndentStr << "else if (ArgFlags & ISD::ParamFlags::ZExt)\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("CCBitConvertToType")) {
+      Record *DestTy = Action->getValueAsDef("DestTy");
+      O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
+      O << IndentStr << "LocInfo = CCValAssign::BCvt;\n";
+    } else if (Action->isSubClassOf("CCPassIndirect")) {
+      Record *DestTy = Action->getValueAsDef("DestTy");
+      O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
+      O << IndentStr << "LocInfo = CCValAssign::Indirect;\n";
     } else if (Action->isSubClassOf("CCPassByVal")) {
       int Size = Action->getValueAsInt("Size");
       int Align = Action->getValueAsInt("Align");
@@ -147,9 +215,23 @@ void CallingConvEmitter::EmitAction(Record *Action,
         << "State.HandleByVal(ValNo, ValVT, LocVT, LocInfo, "
         << Size << ", " << Align << ", ArgFlags);\n";
       O << IndentStr << "return false;\n";
+    } else if (Action->isSubClassOf("CCCustom")) {
+      O << IndentStr
+        << "if (" << Action->getValueAsString("FuncName") << "(ValNo, ValVT, "
+        << "LocVT, LocInfo, ArgFlags, State))\n";
+      O << IndentStr << IndentStr << "return false;\n";
     } else {
       Action->dump();
-      throw "Unknown CCAction!";
+      PrintFatalError("Unknown CCAction!");
     }
   }
 }
+
+namespace llvm {
+
+void EmitCallingConv(RecordKeeper &RK, raw_ostream &OS) {
+  emitSourceFileHeader("Calling Convention Implementation Fragment", OS);
+  CallingConvEmitter(RK).run(OS);
+}
+
+} // End llvm namespace