1 //===- SparcV8InstrFormats.td - SparcV8 Instr Formats ------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
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.
8 //===----------------------------------------------------------------------===//
10 //===----------------------------------------------------------------------===//
11 // Format #2 instruction classes in the SparcV8
12 //===----------------------------------------------------------------------===//
14 class F2 : InstV8 { // Format 2 instructions
18 let Inst{24-22} = op2;
19 let Inst{21-0} = imm22;
22 // Specific F2 classes: SparcV8 manual, page 44
24 class F2_1<bits<3> op2Val, dag ops, string asmstr, list<dag> pattern> : F2 {
27 dag OperandList = ops;
28 let AsmString = asmstr;
29 let Pattern = pattern;
36 class F2_2<bits<4> condVal, bits<3> op2Val, dag ops, string asmstr> : F2 {
38 bit annul = 0; // currently unused
40 dag OperandList = ops;
41 let AsmString = asmstr;
47 let Inst{28-25} = cond;
50 //===----------------------------------------------------------------------===//
51 // Format #3 instruction classes in the SparcV8
52 //===----------------------------------------------------------------------===//
58 let op{1} = 1; // Op = 2 or 3
60 let Inst{24-19} = op3;
61 let Inst{18-14} = rs1;
64 // Specific F3 classes: SparcV8 manual, page 44
66 class F3_1<bits<2> opVal, bits<6> op3val, dag ops,
67 string asmstr, list<dag> pattern> : F3 {
68 bits<8> asi = 0; // asi not currently used in SparcV8
71 dag OperandList = ops;
72 let AsmString = asmstr;
73 let Pattern = pattern;
78 let Inst{13} = 0; // i field = 0
79 let Inst{12-5} = asi; // address space identifier
83 class F3_2<bits<2> opVal, bits<6> op3val, dag ops,
84 string asmstr, list<dag> pattern> : F3 {
87 dag OperandList = ops;
88 let AsmString = asmstr;
89 let Pattern = pattern;
94 let Inst{13} = 1; // i field = 1
95 let Inst{12-0} = simm13;
99 class F3_3<bits<2> opVal, bits<6> op3val, bits<9> opfval, dag ops,
100 string asmstr> : F3 {
103 dag OperandList = ops;
104 let AsmString = asmstr;
109 let Inst{13-5} = opfval; // fp opcode