Function temporaries can not overlap with retval or args.See the comment in source...

[oota-llvm.git] / lib / Target / PowerPC / PPCSubtarget.h

diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index e8ad25f3eba9df63853d198c9f167321b97f07bd..bb29d449507a31af0156725fa8c8b73ce43d5142 100644 (file)
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Nate Begeman and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -19,12 +19,35 @@
 
 #include <string>
 
+// GCC #defines PPC on Linux but we use it as our namespace name
+#undef PPC
+
 namespace llvm {
+
+namespace PPC {
+  // -m directive values.
+  enum {
+    DIR_NONE,
+    DIR_32,
+    DIR_601, 
+    DIR_602, 
+    DIR_603, 
+    DIR_7400,
+    DIR_750, 
+    DIR_970, 
+    DIR_64  
+  };
+}
+
 class Module;
 class GlobalValue;
 class TargetMachine;
   
 class PPCSubtarget : public TargetSubtarget {
+public:
+  enum AsmWriterFlavorTy {
+    OldMnemonic, NewMnemonic, Unset
+  };
 protected:
   const TargetMachine &TM;
   
@@ -34,6 +57,12 @@ protected:
   
   /// Selected instruction itineraries (one entry per itinerary class.)
   InstrItineraryData InstrItins;
+  
+  /// Which cpu directive was used.
+  unsigned DarwinDirective;
+
+  /// AsmFlavor - Which PPC asm dialect to use.
+  AsmWriterFlavorTy AsmFlavor;
 
   /// Used by the ISel to turn in optimizations for POWER4-derived architectures
   bool IsGigaProcessor;
@@ -43,8 +72,11 @@ protected:
   bool HasAltivec;
   bool HasFSQRT;
   bool HasSTFIWX;
-  bool IsDarwin;
   bool HasLazyResolverStubs;
+  
+  /// DarwinVers - Nonzero if this is a darwin platform.  Otherwise, 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.
 public:
   /// This constructor initializes the data members to match that
   /// of the specified module.
@@ -65,6 +97,10 @@ public:
   /// function for this subtarget.
   unsigned getStackAlignment() const { return StackAlignment; }
   
+  /// getDarwinDirective - Returns the -m directive specified for the cpu.
+  ///
+  unsigned getDarwinDirective() const { return DarwinDirective; }
+  
   /// getInstrItins - Return the instruction itineraies based on subtarget 
   /// selection.
   const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
@@ -72,7 +108,8 @@ public:
   /// getTargetDataString - Return the pointer size and type alignment
   /// properties of this subtarget.
   const char *getTargetDataString() const {
-    return isPPC64() ? "E-p:64:64-d:32-l:32" : "E-p:32:32-d:32-l:32";
+    return isPPC64() ? "E-p:64:64-f64:32:64-i64:32:64-f128:64:128"
+                     : "E-p:32:32-f64:32:64-i64:32:64-f128:64:128";
   }
 
   /// isPPC64 - Return true if we are generating code for 64-bit pointer mode.
@@ -98,8 +135,21 @@ public:
   bool hasSTFIWX() const { return HasSTFIWX; }
   bool hasAltivec() const { return HasAltivec; }
   bool isGigaProcessor() const { return IsGigaProcessor; }
-  
-  bool isDarwin() const { return IsDarwin; }
+
+  /// isDarwin - True if this is any darwin platform.
+  bool isDarwin() const { return DarwinVers != 0; }
+  /// isDarwin - True if this is darwin9 (leopard, 10.5) or above.
+  bool isDarwin9() const { return DarwinVers >= 9; }
+
+  /// getDarwinVers - Return the darwin version number, 8 = tiger, 9 = leopard.
+  unsigned getDarwinVers() const { return DarwinVers; }
+
+  bool isMachoABI() const { return isDarwin() || IsPPC64; }
+  bool isELF32_ABI() const { return !isDarwin() && !IsPPC64; }
+
+  unsigned getAsmFlavor() const {
+    return AsmFlavor != Unset ? unsigned(AsmFlavor) : 0;
+  }
 };
 } // End llvm namespace