back out r101423 and r101397, they break llvm-gcc self-host on darwin10

[oota-llvm.git] / lib / VMCore / ConstantFold.h

diff --git a/lib/VMCore/ConstantFold.h b/lib/VMCore/ConstantFold.h
index e8580c429051a5c94cfd0910852bdec44afb873d..d2dbbdd74c24a2ed5fc46882b806a2a0002057c8 100644 (file)
--- a/lib/VMCore/ConstantFold.h
+++ b/lib/VMCore/ConstantFold.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group 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.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -11,32 +11,44 @@
 // interfaces are used by the ConstantExpr::get* methods to automatically fold
 // constants when possible.
 //
-// These operators may return a null object if I don't know how to perform the
-// specified operation on the specified constant types.
+// These operators may return a null object if they don't know how to perform
+// the specified operation on the specified constant types.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef CONSTANTFOLDING_H
 #define CONSTANTFOLDING_H
 
-#include <vector>
-
 namespace llvm {
   class Value;
   class Constant;
   class Type;
 
   // Constant fold various types of instruction...
-  Constant *ConstantFoldCastInstruction(const Constant *V, const Type *DestTy);
-  Constant *ConstantFoldSelectInstruction(const Constant *Cond,
-                                          const Constant *V1,
-                                          const Constant *V2);
-  Constant *ConstantFoldExtractElementInstruction(const Constant *Val,
-                                                  const Constant *Idx);
-  Constant *ConstantFoldBinaryInstruction(unsigned Opcode, const Constant *V1,
-                                          const Constant *V2);
-  Constant *ConstantFoldGetElementPtr(const Constant *C,
-                                      const std::vector<Value*> &IdxList);
+  Constant *ConstantFoldCastInstruction(
+    unsigned opcode,     ///< The opcode of the cast
+    Constant *V,         ///< The source constant
+    const Type *DestTy   ///< The destination type
+  );
+  Constant *ConstantFoldSelectInstruction(Constant *Cond,
+                                          Constant *V1, Constant *V2);
+  Constant *ConstantFoldExtractElementInstruction(Constant *Val, Constant *Idx);
+  Constant *ConstantFoldInsertElementInstruction(Constant *Val, Constant *Elt,
+                                                 Constant *Idx);
+  Constant *ConstantFoldShuffleVectorInstruction(Constant *V1, Constant *V2,
+                                                 Constant *Mask);
+  Constant *ConstantFoldExtractValueInstruction(Constant *Agg,
+                                                const unsigned *Idxs,
+                                                unsigned NumIdx);
+  Constant *ConstantFoldInsertValueInstruction(Constant *Agg, Constant *Val,
+                                               const unsigned *Idxs,
+                                               unsigned NumIdx);
+  Constant *ConstantFoldBinaryInstruction(unsigned Opcode, Constant *V1,
+                                          Constant *V2);
+  Constant *ConstantFoldCompareInstruction(unsigned short predicate, 
+                                           Constant *C1, Constant *C2);
+  Constant *ConstantFoldGetElementPtr(Constant *C, bool inBounds,
+                                      Constant* const *Idxs, unsigned NumIdx);
 } // End llvm namespace
 
 #endif