[mips] Use MTHC1 when it is available (MIPS32r2 and later) for both FP32 and FP64

[oota-llvm.git] / lib / Target / Mips / MipsSubtarget.h

diff --git a/lib/Target/Mips/MipsSubtarget.h b/lib/Target/Mips/MipsSubtarget.h
index 2da92e61670fd24f69b9ec957b98158747d1553c..6824ebf36db432c700850fc7199ae2af1f9be5a5 100644 (file)
--- a/lib/Target/Mips/MipsSubtarget.h
+++ b/lib/Target/Mips/MipsSubtarget.h
@@ -82,12 +82,18 @@ protected:
   // HasMips3_32 - The subset of MIPS-III instructions added to MIPS32
   bool HasMips3_32;
 
+  // HasMips3_32r2 - The subset of MIPS-III instructions added to MIPS32r2
+  bool HasMips3_32r2;
+
   // HasMips4_32 - Has the subset of MIPS-IV present in MIPS32
   bool HasMips4_32;
 
   // HasMips4_32r2 - Has the subset of MIPS-IV present in MIPS32r2
   bool HasMips4_32r2;
 
+  // HasMips5_32r2 - Has the subset of MIPS-V present in MIPS32r2
+  bool HasMips5_32r2;
+
   // InMips16 -- can process Mips16 instructions
   bool InMips16Mode;
 
@@ -153,12 +159,17 @@ public:
   bool hasMips4_32() const { return HasMips4_32; }
   bool hasMips4_32r2() const { return HasMips4_32r2; }
   bool hasMips32() const { return MipsArchVersion >= Mips32; }
-  bool hasMips32r2() const { return MipsArchVersion == Mips32r2 ||
-                                   MipsArchVersion == Mips64r2; }
-  bool hasMips32r6() const { return MipsArchVersion == Mips32r6 ||
-                                   MipsArchVersion == Mips64r6; }
+  bool hasMips32r2() const {
+    return MipsArchVersion == Mips32r2 || MipsArchVersion == Mips32r6 ||
+           MipsArchVersion == Mips64r2;
+  }
+  bool hasMips32r6() const {
+    return MipsArchVersion == Mips32r6 || MipsArchVersion == Mips64r6;
+  }
   bool hasMips64() const { return MipsArchVersion >= Mips64; }
-  bool hasMips64r2() const { return MipsArchVersion == Mips64r2; }
+  bool hasMips64r2() const {
+    return MipsArchVersion == Mips64r2 || MipsArchVersion == Mips64r6;
+  }
   bool hasMips64r6() const { return MipsArchVersion == Mips64r6; }
 
   bool hasCnMips() const { return HasCnMips; }
@@ -228,7 +239,12 @@ public:
   /// \brief Reset the subtarget for the Mips target.
   void resetSubtarget(MachineFunction *MF);
 
-
+  /// Does the system support unaligned memory access.
+  ///
+  /// MIPS32r6/MIPS64r6 require full unaligned access support but does not
+  /// specify which component of the system provides it. Hardware, software, and
+  /// hybrid implementations are all valid.
+  bool systemSupportsUnalignedAccess() const { return hasMips32r6(); }
 };
 } // End llvm namespace