minor cleanups. Add provisions for a new standard BLOCKINFO_BLOCK

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

diff --git a/include/llvm/CodeGen/CallingConvLower.h b/include/llvm/CodeGen/CallingConvLower.h
index 72845c43f443695966e472a67f9e81643d27274b..5e5bbcecc6b6f23ba5e3c336f2ef43ce5141cda2 100644 (file)
--- a/include/llvm/CodeGen/CallingConvLower.h
+++ b/include/llvm/CodeGen/CallingConvLower.h
@@ -21,7 +21,9 @@
 namespace llvm {
   class MRegisterInfo;
   class TargetMachine;
-  
+  class CCState;
+  class SDNode;
+
 /// CCValAssign - Represent assignment of one arg/retval to a location.
 class CCValAssign {
 public:
@@ -91,6 +93,12 @@ public:
 };
 
 
+/// CCAssignFn - This function assigns a location for Val, updating State to
+/// reflect the change.
+typedef bool CCAssignFn(unsigned ValNo, MVT::ValueType ValVT,
+                        MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,
+                        unsigned ArgFlags, CCState &State);
+
   
 /// CCState - This class holds information needed while lowering arguments and
 /// return values.  It captures which registers are already assigned and which
@@ -121,6 +129,23 @@ public:
   bool isAllocated(unsigned Reg) const {
     return UsedRegs[Reg/32] & (1 << (Reg&31));
   }
+  
+  /// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node,
+  /// incorporating info about the formals into this state.
+  void AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn);
+  
+  /// AnalyzeReturn - Analyze the returned values of an ISD::RET node,
+  /// incorporating info about the result values into this state.
+  void AnalyzeReturn(SDNode *TheRet, CCAssignFn Fn);
+  
+  /// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info
+  /// about the passed values into this state.
+  void AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn);
+
+  /// AnalyzeCallResult - Analyze the return values of an ISD::CALL node,
+  /// incorporating info about the passed values into this state.
+  void AnalyzeCallResult(SDNode *TheCall, CCAssignFn Fn);
+  
 
   /// getFirstUnallocated - Return the first unallocated register in the set, or
   /// NumRegs if they are all allocated.
@@ -168,6 +193,8 @@ private:
   void MarkAllocated(unsigned Reg);
 };
 
+
+
 } // end namespace llvm
 
 #endif