simplify some code based on the fact that picstyles != none are only valid

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

diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index abf1e814175f4ff5c25cf02cb4cd8e63191c9b1f..5a4f8c5e27e6359be50f7e3225301be9be4d675b 100644 (file)
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -22,9 +22,14 @@ class Module;
 class GlobalValue;
 class TargetMachine;
   
+/// PICStyles - The X86 backend supports a number of different styles of PIC.
+/// 
 namespace PICStyles {
 enum Style {
-  Stub, GOT, RIPRel, WinPIC, None
+  Stub,   // Used on i386-darwin
+  GOT,    // Used on many 32-bit unices.
+  RIPRel, // Used on X86-64 when not in -static mode.
+  None    // Set when in -static mode (not PIC or DynamicNoPIC mode).
 };
 }
 
@@ -64,6 +69,18 @@ protected:
   ///
   bool HasX86_64;
 
+  /// HasSSE4A - True if the processor supports SSE4A instructions.
+  bool HasSSE4A;
+
+  /// HasAVX - Target has AVX instructions
+  bool HasAVX;
+
+  /// HasFMA3 - Target has 3-operand fused multiply-add
+  bool HasFMA3;
+
+  /// HasFMA4 - Target has 4-operand fused multiply-add
+  bool HasFMA4;
+
   /// IsBTMemSlow - True if BT (bit test) of memory instructions are slow.
   bool IsBTMemSlow;
   
@@ -108,7 +125,8 @@ public:
 
   /// ParseSubtargetFeatures - Parses features string setting specified
   /// subtarget options.  Definition of function is auto generated by tblgen.
-  void ParseSubtargetFeatures(const std::string &FS, const std::string &CPU);
+  std::string ParseSubtargetFeatures(const std::string &FS,
+                                     const std::string &CPU);
 
   /// AutoDetectSubtargetFeatures - Auto-detect CPU features using CPUID
   /// instruction.
@@ -126,8 +144,12 @@ public:
   bool hasSSSE3() const { return X86SSELevel >= SSSE3; }
   bool hasSSE41() const { return X86SSELevel >= SSE41; }
   bool hasSSE42() const { return X86SSELevel >= SSE42; }
+  bool hasSSE4A() const { return HasSSE4A; }
   bool has3DNow() const { return X863DNowLevel >= ThreeDNow; }
   bool has3DNowA() const { return X863DNowLevel >= ThreeDNowA; }
+  bool hasAVX() const { return HasAVX; }
+  bool hasFMA3() const { return HasFMA3; }
+  bool hasFMA4() const { return HasFMA4; }
 
   bool isBTMemSlow() const { return IsBTMemSlow; }
 
@@ -168,7 +190,6 @@ public:
   bool isPICStyleGOT() const { return PICStyle == PICStyles::GOT; }
   bool isPICStyleStub() const { return PICStyle == PICStyles::Stub; }
   bool isPICStyleRIPRel() const { return PICStyle == PICStyles::RIPRel; }
-  bool isPICStyleWinPIC() const { return PICStyle == PICStyles:: WinPIC; }
   
   /// getDarwinVers - Return the darwin version number, 8 = tiger, 9 = leopard.
   unsigned getDarwinVers() const { return DarwinVers; }