Chris Lattner | cbfd406 | 2004-01-12 21:13:12 +0000 | [diff] [blame] | 1 | //===-- ConstantFolding.h - Internal Constant Folding Interface -*- C++ -*-===// |
Misha Brukman | fd93908 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 2 | // |
John Criswell | 6fbcc26 | 2003-10-20 20:19:47 +0000 | [diff] [blame] | 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file was developed by the LLVM research group and is distributed under |
| 6 | // the University of Illinois Open Source License. See LICENSE.TXT for details. |
Misha Brukman | fd93908 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 7 | // |
John Criswell | 6fbcc26 | 2003-10-20 20:19:47 +0000 | [diff] [blame] | 8 | //===----------------------------------------------------------------------===// |
Chris Lattner | 0095054 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 9 | // |
Chris Lattner | cbfd406 | 2004-01-12 21:13:12 +0000 | [diff] [blame] | 10 | // This file defines the (internal) constant folding interfaces for LLVM. These |
| 11 | // interfaces are used by the ConstantExpr::get* methods to automatically fold |
| 12 | // constants when possible. |
| 13 | // |
| 14 | // These operators may return a null object if I don't know how to perform the |
| 15 | // specified operation on the specified constant types. |
Chris Lattner | 0095054 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 16 | // |
| 17 | //===----------------------------------------------------------------------===// |
Chris Lattner | 0095054 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 18 | |
Chris Lattner | cbfd406 | 2004-01-12 21:13:12 +0000 | [diff] [blame] | 19 | #ifndef CONSTANTFOLDING_H |
| 20 | #define CONSTANTFOLDING_H |
Chris Lattner | 0095054 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 21 | |
Chris Lattner | 8b0f0cb | 2004-01-12 21:02:29 +0000 | [diff] [blame] | 22 | #include <vector> |
Brian Gaeke | d0fde30 | 2003-11-11 22:41:34 +0000 | [diff] [blame] | 23 | |
| 24 | namespace llvm { |
Chris Lattner | 7fa6e66 | 2004-10-11 22:52:25 +0000 | [diff] [blame] | 25 | class Value; |
Chris Lattner | 8b0f0cb | 2004-01-12 21:02:29 +0000 | [diff] [blame] | 26 | class Constant; |
Chris Lattner | 1fca5ff | 2004-10-27 16:14:51 +0000 | [diff] [blame] | 27 | class Type; |
Misha Brukman | fd93908 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 28 | |
Chris Lattner | cbfd406 | 2004-01-12 21:13:12 +0000 | [diff] [blame] | 29 | // Constant fold various types of instruction... |
Reid Spencer | 3da59db | 2006-11-27 01:05:10 +0000 | [diff] [blame^] | 30 | Constant *ConstantFoldCastInstruction( |
| 31 | unsigned opcode, ///< The opcode of the cast |
| 32 | const Constant *V, ///< The source constant |
| 33 | const Type *DestTy ///< The destination type |
| 34 | ); |
Chris Lattner | 647f82b | 2004-03-12 05:53:41 +0000 | [diff] [blame] | 35 | Constant *ConstantFoldSelectInstruction(const Constant *Cond, |
| 36 | const Constant *V1, |
| 37 | const Constant *V2); |
Robert Bocchino | bb90a7a | 2006-01-10 20:03:46 +0000 | [diff] [blame] | 38 | Constant *ConstantFoldExtractElementInstruction(const Constant *Val, |
| 39 | const Constant *Idx); |
Robert Bocchino | c152f9c | 2006-01-17 20:07:22 +0000 | [diff] [blame] | 40 | Constant *ConstantFoldInsertElementInstruction(const Constant *Val, |
| 41 | const Constant *Elt, |
| 42 | const Constant *Idx); |
Chris Lattner | 00f1023 | 2006-04-08 01:18:18 +0000 | [diff] [blame] | 43 | Constant *ConstantFoldShuffleVectorInstruction(const Constant *V1, |
| 44 | const Constant *V2, |
| 45 | const Constant *Mask); |
Chris Lattner | cbfd406 | 2004-01-12 21:13:12 +0000 | [diff] [blame] | 46 | Constant *ConstantFoldBinaryInstruction(unsigned Opcode, const Constant *V1, |
| 47 | const Constant *V2); |
| 48 | Constant *ConstantFoldGetElementPtr(const Constant *C, |
Chris Lattner | 7fa6e66 | 2004-10-11 22:52:25 +0000 | [diff] [blame] | 49 | const std::vector<Value*> &IdxList); |
Brian Gaeke | d0fde30 | 2003-11-11 22:41:34 +0000 | [diff] [blame] | 50 | } // End llvm namespace |
| 51 | |
Chris Lattner | 0095054 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 52 | #endif |