Fix a bug where the x86 backend would reject 64-bit r constraints when

[oota-llvm.git] / lib / Target / X86 / X86Subtarget.h

diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index c2687265af9a51065239f9da8bb4fe5d9e7f0e09..b95a2e45e5ec7ef835d96e5906e029344f65ea8f 100644 (file)
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -53,8 +53,8 @@ protected:
   ///
   PICStyle::Style PICStyle;
   
-  /// X86SSELevel - MMX, SSE1, SSE2, SSE3, SSSE3, or none supported.
-  ///
+  /// X86SSELevel - MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, or
+  /// none supported.
   X86SSEEnum X86SSELevel;
 
   /// X863DNowLevel - 3DNow or 3DNow Athlon, or none supported.
@@ -67,7 +67,10 @@ protected:
   
   /// DarwinVers - Nonzero if this is a darwin platform: the numeric
   /// version of the platform, e.g. 8 = 10.4 (Tiger), 9 = 10.5 (Leopard), etc.
-  unsigned char DarwinVers; // Is any darwin-ppc platform.
+  unsigned char DarwinVers; // Is any darwin-x86 platform.
+
+  /// isLinux - true if this is a "linux" platform.
+  bool IsLinux;
 
   /// stackAlignment - The minimum alignment known to hold of the stack frame on
   /// entry to the function and which must be maintained by every function.
@@ -82,10 +85,6 @@ private:
   /// pointer size is 64 bit.
   bool Is64Bit;
 
-  /// HasLow4GUserAddress - True if the low 4G user-space address is available.
-  ///
-  bool HasLow4GUserAddress;
-
 public:
   enum {
     isELF, isCygwin, isDarwin, isWindows, isMingw
@@ -115,10 +114,6 @@ public:
 
   bool is64Bit() const { return Is64Bit; }
 
-  /// hasLow4GUserSpaceAddress - True if lower 4G user-space address is
-  /// available.
-  bool hasLow4GUserSpaceAddress() const { return HasLow4GUserAddress; }
-
   PICStyle::Style getPICStyle() const { return PICStyle; }
   void setPICStyle(PICStyle::Style Style)  { PICStyle = Style; }
 
@@ -140,12 +135,17 @@ public:
   bool isFlavorIntel() const { return AsmFlavor == Intel; }
 
   bool isTargetDarwin() const { return TargetType == isDarwin; }
-  bool isTargetELF() const { return TargetType == isELF; }
+  bool isTargetELF() const {
+    return TargetType == isELF;
+  }
   bool isTargetWindows() const { return TargetType == isWindows; }
   bool isTargetMingw() const { return TargetType == isMingw; }
   bool isTargetCygMing() const { return (TargetType == isMingw ||
                                          TargetType == isCygwin); }
   bool isTargetCygwin() const { return TargetType == isCygwin; }
+  bool isTargetWin64() const {
+    return (Is64Bit && (TargetType == isMingw || TargetType == isWindows));
+  }
 
   std::string getDataLayout() const {
     const char *p;
@@ -169,6 +169,9 @@ public:
   /// getDarwinVers - Return the darwin version number, 8 = tiger, 9 = leopard.
   unsigned getDarwinVers() const { return DarwinVers; }
   
+  /// isLinux - Return true if the target is "Linux".
+  bool isLinux() const { return IsLinux; }
+
   /// True if accessing the GV requires an extra load. For Windows, dllimported
   /// symbols are indirect, loading the value at address GV rather then the
   /// value of GV itself. This means that the GlobalAddress must be in the base
@@ -176,6 +179,12 @@ public:
   bool GVRequiresExtraLoad(const GlobalValue* GV, const TargetMachine& TM,
                            bool isDirectCall) const;
 
+  /// This function returns the name of a function which has an interface
+  /// like the non-standard bzero function, if such a function exists on
+  /// the current subtarget and it is considered prefereable over
+  /// memset with zero passed as the second argument. Otherwise it
+  /// returns null.
+  const char *getBZeroEntry() const;
 };
 
 namespace X86 {