Revert r194865 and r194874.

[oota-llvm.git] / lib / Target / SystemZ / SystemZSubtarget.h

diff --git a/lib/Target/SystemZ/SystemZSubtarget.h b/lib/Target/SystemZ/SystemZSubtarget.h
index 41a3741a3548bc10550230f8f69ddfcef6c1712e..74d3f90ad74d05919aa10898dd70d45fb8676668 100644 (file)
--- a/lib/Target/SystemZ/SystemZSubtarget.h
+++ b/lib/Target/SystemZ/SystemZSubtarget.h
@@ -1,4 +1,4 @@
-//==-- SystemZSubtarget.h - Define Subtarget for the SystemZ ---*- C++ -*--===//
+//===-- SystemZSubtarget.h - SystemZ subtarget information -----*- C++ -*--===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,37 +7,63 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file declares the SystemZ specific subclass of TargetSubtarget.
+// This file declares the SystemZ specific subclass of TargetSubtargetInfo.
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_TARGET_SystemZ_SUBTARGET_H
-#define LLVM_TARGET_SystemZ_SUBTARGET_H
-
-#include "llvm/Target/TargetSubtarget.h"
+#ifndef SYSTEMZSUBTARGET_H
+#define SYSTEMZSUBTARGET_H
 
+#include "llvm/ADT/Triple.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "SystemZGenSubtargetInfo.inc"
+
 namespace llvm {
-class Module;
-class TargetMachine;
+class GlobalValue;
+class StringRef;
+
+class SystemZSubtarget : public SystemZGenSubtargetInfo {
+protected:
+  bool HasDistinctOps;
+  bool HasLoadStoreOnCond;
+  bool HasHighWord;
+  bool HasFPExtension;
+
+private:
+  Triple TargetTriple;
 
-class SystemZSubtarget : public TargetSubtarget {
-  bool HasZ10Insts;
 public:
-  /// This constructor initializes the data members to match that
-  /// of the specified module.
-  ///
-  SystemZSubtarget(const TargetMachine &TM, const Module &M,
+  SystemZSubtarget(const std::string &TT, const std::string &CPU,
                    const std::string &FS);
 
-  /// ParseSubtargetFeatures - Parses features string setting specified
-  /// subtarget options.  Definition of function is auto generated by tblgen.
-  std::string ParseSubtargetFeatures(const std::string &FS,
-                                     const std::string &CPU);
+  // This is important for reducing register pressure in vector code.
+  virtual bool useAA() const LLVM_OVERRIDE { return true; }
+
+  // Automatically generated by tblgen.
+  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
+
+  // Return true if the target has the distinct-operands facility.
+  bool hasDistinctOps() const { return HasDistinctOps; }
+
+  // Return true if the target has the load/store-on-condition facility.
+  bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
+
+  // Return true if the target has the high-word facility.
+  bool hasHighWord() const { return HasHighWord; }
+
+  // Return true if the target has the floating-point extension facility.
+  bool hasFPExtension() const { return HasFPExtension; }
+
+  // Return true if GV can be accessed using LARL for reloc model RM
+  // and code model CM.
+  bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM,
+                       CodeModel::Model CM) const;
 
-  bool isZ10() const { return HasZ10Insts; }
+  bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
 };
-} // End llvm namespace
+} // end namespace llvm
 
-#endif  // LLVM_TARGET_SystemZ_SUBTARGET_H
+#endif