Add some comments explaining what MVT and EVT are, and how they differ.

[oota-llvm.git] / include / llvm / CodeGen / MachineFunction.h

diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index b3609c2ea73ee7c0978d9f62c9d29cabd820dcb0..f31c99a6f982afd55f6df87e3a5a6d9ad507bdb8 100644 (file)
--- a/include/llvm/CodeGen/MachineFunction.h
+++ b/include/llvm/CodeGen/MachineFunction.h
@@ -28,6 +28,7 @@ namespace llvm {
 
 class Value;
 class Function;
+class GCModuleInfo;
 class MachineRegisterInfo;
 class MachineFrameInfo;
 class MachineConstantPool;
@@ -37,6 +38,7 @@ class MCContext;
 class Pass;
 class TargetMachine;
 class TargetRegisterClass;
+struct MachinePointerInfo;
 
 template <>
 struct ilist_traits<MachineBasicBlock>
@@ -70,10 +72,11 @@ struct MachineFunctionInfo {
 };
 
 class MachineFunction {
-  Function *Fn;
+  const Function *Fn;
   const TargetMachine &Target;
   MCContext &Ctx;
   MachineModuleInfo &MMI;
+  GCModuleInfo *GMI;
   
   // RegInfo - Information about each register in use in the function.
   MachineRegisterInfo *RegInfo;
@@ -109,31 +112,34 @@ class MachineFunction {
   typedef ilist<MachineBasicBlock> BasicBlockListType;
   BasicBlockListType BasicBlocks;
 
-  /// Default debug location. Used to print out the debug label at the beginning
-  /// of a function.
-  DebugLoc DefaultDebugLoc;
-
   /// FunctionNumber - This provides a unique ID for each function emitted in
   /// this translation unit.
   ///
   unsigned FunctionNumber;
   
-  /// The alignment of the function.
+  /// Alignment - The alignment of the function.
   unsigned Alignment;
 
+  /// CallsSetJmp - True if the function calls setjmp or sigsetjmp. This is used
+  /// to limit optimizations which cannot reason about the control flow of
+  /// setjmp.
+  bool CallsSetJmp;
+
   MachineFunction(const MachineFunction &); // DO NOT IMPLEMENT
   void operator=(const MachineFunction&);   // DO NOT IMPLEMENT
 public:
-  MachineFunction(Function *Fn, const TargetMachine &TM, unsigned FunctionNum,
-                  MachineModuleInfo &MMI);
+  MachineFunction(const Function *Fn, const TargetMachine &TM,
+                  unsigned FunctionNum, MachineModuleInfo &MMI,
+                  GCModuleInfo* GMI);
   ~MachineFunction();
 
   MachineModuleInfo &getMMI() const { return MMI; }
+  GCModuleInfo *getGMI() const { return GMI; }
   MCContext &getContext() const { return Ctx; }
   
   /// getFunction - Return the LLVM function that this machine code represents
   ///
-  Function *getFunction() const { return Fn; }
+  const Function *getFunction() const { return Fn; }
 
   /// getFunctionNumber - Return a unique ID for the current function.
   ///
@@ -185,6 +191,17 @@ public:
   void EnsureAlignment(unsigned A) {
     if (Alignment < A) Alignment = A;
   }
+
+  /// callsSetJmp - Returns true if the function calls setjmp or sigsetjmp.
+  bool callsSetJmp() const {
+    return CallsSetJmp;
+  }
+
+  /// setCallsSetJmp - Set a flag that indicates if there's a call to setjmp or
+  /// sigsetjmp.
+  void setCallsSetJmp(bool B) {
+    CallsSetJmp = B;
+  }
   
   /// getInfo - Keep track of various per-function pieces of information for
   /// backends that would like to do so.
@@ -231,7 +248,7 @@ public:
   /// print - Print out the MachineFunction in a format suitable for debugging
   /// to the specified stream.
   ///
-  void print(raw_ostream &OS) const;
+  void print(raw_ostream &OS, SlotIndexes* = 0) const;
 
   /// viewCFG - This function is meant for use from the debugger.  You can just
   /// say 'call F->viewCFG()' and a ghostview window should pop up from the
@@ -254,7 +271,7 @@ public:
 
   /// verify - Run the current MachineFunction through the machine code
   /// verifier, useful for debugger use.
-  void verify(Pass *p=NULL, bool allowDoubleDefs=false) const;
+  void verify(Pass *p=NULL) const;
 
   // Provide accessors for the MachineBasicBlock list...
   typedef BasicBlockListType::iterator iterator;
@@ -356,10 +373,11 @@ public:
   /// getMachineMemOperand - Allocate a new MachineMemOperand.
   /// MachineMemOperands are owned by the MachineFunction and need not be
   /// explicitly deallocated.
-  MachineMemOperand *getMachineMemOperand(const Value *v, unsigned f,
-                                          int64_t o, uint64_t s,
-                                          unsigned base_alignment);
-
+  MachineMemOperand *getMachineMemOperand(MachinePointerInfo PtrInfo,
+                                          unsigned f, uint64_t s,
+                                          unsigned base_alignment,
+                                          const MDNode *TBAAInfo = 0);
+  
   /// getMachineMemOperand - Allocate a new MachineMemOperand by copying
   /// an existing one, adjusting by an offset and using the given size.
   /// MachineMemOperands are owned by the MachineFunction and need not be
@@ -394,19 +412,6 @@ public:
   /// normal 'L' label is returned.
   MCSymbol *getJTISymbol(unsigned JTI, MCContext &Ctx, 
                          bool isLinkerPrivate = false) const;
-  
-  
-  //===--------------------------------------------------------------------===//
-  // Debug location.
-  //
-
-  /// getDefaultDebugLoc - Get the default debug location for the machine
-  /// function.
-  DebugLoc getDefaultDebugLoc() const { return DefaultDebugLoc; }
-
-  /// setDefaultDebugLoc - Get the default debug location for the machine
-  /// function.
-  void setDefaultDebugLoc(DebugLoc DL) { DefaultDebugLoc = DL; }
 };
 
 //===--------------------------------------------------------------------===//