X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=utils%2FTableGen%2FCodeGenTarget.h;h=d6458f41cf23bf8d35974cbd34c9e05952a520e1;hb=d573aba8e13c2afc5ad7c3c3c442a3a84f8bd94d;hp=143daedae837b99d28ceb2931a2ab104f03d017c;hpb=bea6f615eefae279e53bbb63a31d2c3c67274c45;p=oota-llvm.git

diff --git a/utils/TableGen/CodeGenTarget.h b/utils/TableGen/CodeGenTarget.h
index 143daedae83..d6458f41cf2 100644
--- a/utils/TableGen/CodeGenTarget.h
+++ b/utils/TableGen/CodeGenTarget.h
@@ -9,23 +9,24 @@
 //
 // This file defines wrappers for the Target class and related global
 // functionality.  This makes it easier to access the data and provides a single
-// place that needs to check it for validity.  All of these classes throw
-// exceptions on error conditions.
+// place that needs to check it for validity.  All of these classes abort
+// on error conditions.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef CODEGEN_TARGET_H
 #define CODEGEN_TARGET_H
 
-#include "CodeGenRegisters.h"
 #include "CodeGenInstruction.h"
-#include "Record.h"
+#include "CodeGenRegisters.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/TableGen/Record.h"
 #include <algorithm>
 
 namespace llvm {
 
 struct CodeGenRegister;
+class CodeGenSchedModels;
 class CodeGenTarget;
 
 // SelectionDAG node properties.
@@ -67,14 +68,17 @@ class CodeGenTarget {
   mutable DenseMap<const Record*, CodeGenInstruction*> Instructions;
   mutable CodeGenRegBank *RegBank;
   mutable std::vector<Record*> RegAltNameIndices;
-  mutable std::vector<MVT::SimpleValueType> LegalValueTypes;
+  mutable SmallVector<MVT::SimpleValueType, 8> LegalValueTypes;
   void ReadRegAltNameIndices() const;
   void ReadInstructions() const;
   void ReadLegalValueTypes() const;
 
+  mutable CodeGenSchedModels *SchedModels;
+
   mutable std::vector<const CodeGenInstruction*> InstrsByEnum;
 public:
   CodeGenTarget(RecordKeeper &Records);
+  ~CodeGenTarget();
 
   Record *getTargetRecord() const { return TargetRec; }
   const std::string &getName() const;
@@ -91,6 +95,16 @@ public:
   ///
   Record *getAsmParser() const;
 
+  /// getAsmParserVariant - Return the AssmblyParserVariant definition for
+  /// this target.
+  ///
+  Record *getAsmParserVariant(unsigned i) const;
+
+  /// getAsmParserVariantCount - Return the AssmblyParserVariant definition
+  /// available for this target.
+  ///
+  unsigned getAsmParserVariantCount() const;
+
   /// getAsmWriter - Return the AssemblyWriter definition for this target.
   ///
   Record *getAsmWriter() const;
@@ -107,10 +121,6 @@ public:
     return RegAltNameIndices;
   }
 
-  const std::vector<CodeGenRegisterClass> &getRegisterClasses() const {
-    return getRegBank().getRegClasses();
-  }
-
   const CodeGenRegisterClass &getRegisterClass(Record *R) const {
     return *getRegBank().getRegClass(R);
   }
@@ -119,7 +129,7 @@ public:
   /// specified physical register.
   std::vector<MVT::SimpleValueType> getRegisterVTs(Record *R) const;
 
-  const std::vector<MVT::SimpleValueType> &getLegalValueTypes() const {
+  ArrayRef<MVT::SimpleValueType> getLegalValueTypes() const {
     if (LegalValueTypes.empty()) ReadLegalValueTypes();
     return LegalValueTypes;
   }
@@ -127,12 +137,14 @@ public:
   /// isLegalValueType - Return true if the specified value type is natively
   /// supported by the target (i.e. there are registers that directly hold it).
   bool isLegalValueType(MVT::SimpleValueType VT) const {
-    const std::vector<MVT::SimpleValueType> &LegalVTs = getLegalValueTypes();
+    ArrayRef<MVT::SimpleValueType> LegalVTs = getLegalValueTypes();
     for (unsigned i = 0, e = LegalVTs.size(); i != e; ++i)
       if (LegalVTs[i] == VT) return true;
     return false;
   }
 
+  CodeGenSchedModels &getSchedModels() const;
+
 private:
   DenseMap<const Record*, CodeGenInstruction*> &getInstructions() const {
     if (Instructions.empty()) ReadInstructions();
@@ -165,6 +177,14 @@ public:
   ///
   bool isLittleEndianEncoding() const;
 
+  /// reverseBitsForLittleEndianEncoding - For little-endian instruction bit
+  /// encodings, reverse the bit order of all instructions.
+  void reverseBitsForLittleEndianEncoding();
+
+  /// guessInstructionProperties - should we just guess unset instruction
+  /// properties?
+  bool guessInstructionProperties() const;
+
 private:
   void ComputeInstrsByEnum() const;
 };