Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 1 | //===- IA64InstrFormats.td - IA64 Instruction Formats --*- tablegen -*-=// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file was developed by Duraid Madina and is distributed under the |
| 6 | // University of Illinois Open Source License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // - Warning: the stuff in here isn't really being used, so is mostly |
| 11 | // junk. It'll get fixed as the JIT gets built. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | //===----------------------------------------------------------------------===// |
| 16 | // Instruction format superclass |
| 17 | //===----------------------------------------------------------------------===// |
| 18 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 19 | class InstIA64<bits<4> op, dag OOL, dag IOL, string asmstr> : Instruction { |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 20 | // IA64 instruction baseline |
| 21 | field bits<41> Inst; |
| 22 | let Namespace = "IA64"; |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 23 | let OutOperandList = OOL; |
| 24 | let InOperandList = IOL; |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 25 | let AsmString = asmstr; |
| 26 | |
| 27 | let Inst{40-37} = op; |
| 28 | } |
| 29 | |
| 30 | //"Each Itanium instruction is categorized into one of six types." |
| 31 | //We should have: |
| 32 | // A, I, M, F, B, L+X |
| 33 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 34 | class AForm<bits<4> opcode, bits<6> qpReg, dag OOL, dag IOL, string asmstr> : |
| 35 | InstIA64<opcode, OOL, IOL, asmstr> { |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 36 | |
| 37 | let Inst{5-0} = qpReg; |
| 38 | } |
| 39 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 40 | class AForm_DAG<bits<4> opcode, bits<6> qpReg, dag OOL, dag IOL, string asmstr, |
Duraid Madina | f2db9b8 | 2005-10-28 17:46:35 +0000 | [diff] [blame] | 41 | list<dag> pattern> : |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 42 | InstIA64<opcode, OOL, IOL, asmstr> { |
Duraid Madina | f2db9b8 | 2005-10-28 17:46:35 +0000 | [diff] [blame] | 43 | |
| 44 | let Pattern = pattern; |
| 45 | let Inst{5-0} = qpReg; |
| 46 | } |
| 47 | |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 48 | let isBranch = 1, isTerminator = 1 in |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 49 | class BForm<bits<4> opcode, bits<6> x6, bits<3> btype, dag OOL, dag IOL, string asmstr> : |
| 50 | InstIA64<opcode, OOL, IOL, asmstr> { |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 51 | |
| 52 | let Inst{32-27} = x6; |
| 53 | let Inst{8-6} = btype; |
| 54 | } |
| 55 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 56 | class MForm<bits<4> opcode, bits<6> x6, dag OOL, dag IOL, string asmstr> : |
| 57 | InstIA64<opcode, OOL, IOL, asmstr> { |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 58 | bits<7> Ra; |
| 59 | bits<7> Rb; |
| 60 | bits<16> disp; |
| 61 | |
| 62 | let Inst{35-30} = x6; |
| 63 | // let Inst{20-16} = Rb; |
| 64 | let Inst{15-0} = disp; |
| 65 | } |
| 66 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 67 | class RawForm<bits<4> opcode, bits<26> rest, dag OOL, dag IOL, string asmstr> : |
| 68 | InstIA64<opcode, OOL, IOL, asmstr> { |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 69 | let Inst{25-0} = rest; |
| 70 | } |
| 71 | |
| 72 | // Pseudo instructions. |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 73 | class PseudoInstIA64<dag OOL, dag IOL, string nm> : InstIA64<0, OOL, IOL, nm> { |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 74 | } |
| 75 | |
Evan Cheng | 64d80e3 | 2007-07-19 01:14:50 +0000 | [diff] [blame] | 76 | class PseudoInstIA64_DAG<dag OOL, dag IOL, string nm, list<dag> pattern> |
| 77 | : InstIA64<0, OOL, IOL, nm> { |
Duraid Madina | 363aff2 | 2005-10-31 01:42:11 +0000 | [diff] [blame] | 78 | let Pattern = pattern; |
| 79 | } |
Duraid Madina | 9b9d45f | 2005-03-17 18:17:03 +0000 | [diff] [blame] | 80 | |