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https://github.com/c64scene-ar/llvm-6502.git
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9188443a2d
This is the first use of D(L,B) addressing, which required a fair bit of surgery. For that reason, the patch just adds the instruction definition and the associated assembler and disassembler support. A later patch will actually make use of it for codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185433 91177308-0d34-0410-b5e6-96231b3b80d8
1029 lines
35 KiB
TableGen
1029 lines
35 KiB
TableGen
//==- SystemZInstrFormats.td - SystemZ Instruction Formats --*- tablegen -*-==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Basic SystemZ instruction definition
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//===----------------------------------------------------------------------===//
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class InstSystemZ<int size, dag outs, dag ins, string asmstr,
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list<dag> pattern> : Instruction {
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let Namespace = "SystemZ";
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dag OutOperandList = outs;
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dag InOperandList = ins;
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let Size = size;
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let Pattern = pattern;
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let AsmString = asmstr;
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// Used to identify a group of related instructions, such as ST and STY.
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string Function = "";
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// "12" for an instruction that has a ...Y equivalent, "20" for that
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// ...Y equivalent.
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string PairType = "none";
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// True if this instruction is a simple D(X,B) load of a register
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// (with no sign or zero extension).
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bit SimpleBDXLoad = 0;
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// True if this instruction is a simple D(X,B) store of a register
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// (with no truncation).
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bit SimpleBDXStore = 0;
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// True if this instruction has a 20-bit displacement field.
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bit Has20BitOffset = 0;
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// True if addresses in this instruction have an index register.
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bit HasIndex = 0;
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// True if this is a 128-bit pseudo instruction that combines two 64-bit
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// operations.
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bit Is128Bit = 0;
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let TSFlags{0} = SimpleBDXLoad;
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let TSFlags{1} = SimpleBDXStore;
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let TSFlags{2} = Has20BitOffset;
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let TSFlags{3} = HasIndex;
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let TSFlags{4} = Is128Bit;
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}
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//===----------------------------------------------------------------------===//
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// Mappings between instructions
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//===----------------------------------------------------------------------===//
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// Return the version of an instruction that has an unsigned 12-bit
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// displacement.
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def getDisp12Opcode : InstrMapping {
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let FilterClass = "InstSystemZ";
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let RowFields = ["Function"];
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let ColFields = ["PairType"];
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let KeyCol = ["20"];
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let ValueCols = [["12"]];
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}
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// Return the version of an instruction that has a signed 20-bit displacement.
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def getDisp20Opcode : InstrMapping {
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let FilterClass = "InstSystemZ";
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let RowFields = ["Function"];
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let ColFields = ["PairType"];
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let KeyCol = ["12"];
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let ValueCols = [["20"]];
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}
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//===----------------------------------------------------------------------===//
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// Instruction formats
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//===----------------------------------------------------------------------===//
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//
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// Formats are specified using operand field declarations of the form:
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//
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// bits<4> Rn : register input or output for operand n
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// bits<m> In : immediate value of width m for operand n
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// bits<4> BDn : address operand n, which has a base and a displacement
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// bits<m> XBDn : address operand n, which has an index, a base and a
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// displacement
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// bits<4> Xn : index register for address operand n
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// bits<4> Mn : mode value for operand n
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//
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// The operand numbers ("n" in the list above) follow the architecture manual.
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// Assembly operands sometimes have a different order; in particular, R3 often
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// is often written between operands 1 and 2.
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//
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//===----------------------------------------------------------------------===//
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class InstRI<bits<12> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<4> R1;
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bits<16> I2;
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let Inst{31-24} = op{11-4};
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let Inst{23-20} = R1;
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let Inst{19-16} = op{3-0};
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let Inst{15-0} = I2;
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}
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class InstRIEb<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<4> R2;
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bits<4> M3;
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bits<16> RI4;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R1;
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let Inst{35-32} = R2;
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let Inst{31-16} = RI4;
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let Inst{15-12} = M3;
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let Inst{11-8} = 0;
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let Inst{7-0} = op{7-0};
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}
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class InstRIEc<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<8> I2;
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bits<4> M3;
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bits<16> RI4;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R1;
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let Inst{35-32} = M3;
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let Inst{31-16} = RI4;
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let Inst{15-8} = I2;
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let Inst{7-0} = op{7-0};
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}
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class InstRIEf<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<4> R2;
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bits<8> I3;
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bits<8> I4;
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bits<8> I5;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R1;
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let Inst{35-32} = R2;
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let Inst{31-24} = I3;
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let Inst{23-16} = I4;
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let Inst{15-8} = I5;
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let Inst{7-0} = op{7-0};
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}
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class InstRIL<bits<12> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<32> I2;
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let Inst{47-40} = op{11-4};
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let Inst{39-36} = R1;
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let Inst{35-32} = op{3-0};
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let Inst{31-0} = I2;
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}
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class InstRR<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<2, outs, ins, asmstr, pattern> {
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field bits<16> Inst;
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field bits<16> SoftFail = 0;
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bits<4> R1;
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bits<4> R2;
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let Inst{15-8} = op;
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let Inst{7-4} = R1;
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let Inst{3-0} = R2;
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}
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class InstRRD<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<4> R1;
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bits<4> R3;
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bits<4> R2;
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let Inst{31-16} = op;
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let Inst{15-12} = R1;
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let Inst{11-8} = 0;
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let Inst{7-4} = R3;
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let Inst{3-0} = R2;
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}
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class InstRRE<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<4> R1;
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bits<4> R2;
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let Inst{31-16} = op;
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let Inst{15-8} = 0;
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let Inst{7-4} = R1;
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let Inst{3-0} = R2;
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}
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class InstRRF<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<4> R1;
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bits<4> R2;
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bits<4> R3;
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let Inst{31-16} = op;
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let Inst{15-12} = R3;
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let Inst{11-8} = 0;
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let Inst{7-4} = R1;
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let Inst{3-0} = R2;
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}
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class InstRX<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<4> R1;
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bits<20> XBD2;
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let Inst{31-24} = op;
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let Inst{23-20} = R1;
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let Inst{19-0} = XBD2;
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let HasIndex = 1;
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}
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class InstRXE<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<20> XBD2;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R1;
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let Inst{35-16} = XBD2;
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let Inst{15-8} = 0;
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let Inst{7-0} = op{7-0};
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let HasIndex = 1;
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}
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class InstRXF<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<4> R3;
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bits<20> XBD2;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R3;
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let Inst{35-16} = XBD2;
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let Inst{15-12} = R1;
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let Inst{11-8} = 0;
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let Inst{7-0} = op{7-0};
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let HasIndex = 1;
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}
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class InstRXY<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<28> XBD2;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R1;
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let Inst{35-8} = XBD2;
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let Inst{7-0} = op{7-0};
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let Has20BitOffset = 1;
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let HasIndex = 1;
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}
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class InstRS<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<4> R1;
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bits<4> R3;
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bits<16> BD2;
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let Inst{31-24} = op;
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let Inst{23-20} = R1;
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let Inst{19-16} = R3;
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let Inst{15-0} = BD2;
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}
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class InstRSY<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<4> R1;
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bits<4> R3;
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bits<24> BD2;
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let Inst{47-40} = op{15-8};
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let Inst{39-36} = R1;
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let Inst{35-32} = R3;
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let Inst{31-8} = BD2;
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let Inst{7-0} = op{7-0};
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let Has20BitOffset = 1;
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}
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class InstSI<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<4, outs, ins, asmstr, pattern> {
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field bits<32> Inst;
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field bits<32> SoftFail = 0;
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bits<16> BD1;
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bits<8> I2;
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let Inst{31-24} = op;
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let Inst{23-16} = I2;
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let Inst{15-0} = BD1;
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}
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class InstSIL<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<16> BD1;
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bits<16> I2;
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let Inst{47-32} = op;
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let Inst{31-16} = BD1;
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let Inst{15-0} = I2;
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}
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class InstSIY<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<24> BD1;
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bits<8> I2;
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let Inst{47-40} = op{15-8};
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let Inst{39-32} = I2;
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let Inst{31-8} = BD1;
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let Inst{7-0} = op{7-0};
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let Has20BitOffset = 1;
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}
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class InstSS<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
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: InstSystemZ<6, outs, ins, asmstr, pattern> {
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field bits<48> Inst;
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field bits<48> SoftFail = 0;
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bits<24> BDL1;
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bits<16> BD2;
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let Inst{47-40} = op;
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let Inst{39-16} = BDL1;
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let Inst{15-0} = BD2;
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}
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//===----------------------------------------------------------------------===//
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// Instruction definitions with semantics
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//===----------------------------------------------------------------------===//
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//
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// These classes have the form <Category><Format>, where <Format> is one
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// of the formats defined above and where <Category> describes the inputs
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// and outputs. <Category> can be one of:
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//
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// Inherent:
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// One register output operand and no input operands.
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//
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// Store:
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// One register or immediate input operand and one address input operand.
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// The instruction stores the first operand to the address.
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//
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// This category is used for both pure and truncating stores.
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//
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// LoadMultiple:
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// One address input operand and two explicit output operands.
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// The instruction loads a range of registers from the address,
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// with the explicit operands giving the first and last register
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// to load. Other loaded registers are added as implicit definitions.
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//
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// StoreMultiple:
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// Two explicit input register operands and an address operand.
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// The instruction stores a range of registers to the address,
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// with the explicit operands giving the first and last register
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// to store. Other stored registers are added as implicit uses.
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//
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// Unary:
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// One register output operand and one input operand. The input
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// operand may be a register, immediate or memory.
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//
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// Binary:
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// One register output operand and two input operands. The first
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// input operand is always a register and he second may be a register,
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// immediate or memory.
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//
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// Shift:
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// One register output operand and two input operands. The first
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// input operand is a register and the second has the same form as
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// an address (although it isn't actually used to address memory).
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//
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// Compare:
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// Two input operands. The first operand is always a register,
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// the second may be a register, immediate or memory.
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//
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// Ternary:
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// One register output operand and three register input operands.
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//
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// CmpSwap:
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// One output operand and three input operands. The first two
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// operands are registers and the third is an address. The instruction
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// both reads from and writes to the address.
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//
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// RotateSelect:
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// One output operand and five input operands. The first two operands
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// are registers and the other three are immediates.
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//
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// The format determines which input operands are tied to output operands,
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// and also determines the shape of any address operand.
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//
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// Multiclasses of the form <Category><Format>Pair define two instructions,
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// one with <Category><Format> and one with <Category><Format>Y. The name
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// of the first instruction has no suffix, the name of the second has
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// an extra "y".
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//
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//===----------------------------------------------------------------------===//
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class InherentRRE<string mnemonic, bits<16> opcode, RegisterOperand cls,
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dag src>
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: InstRRE<opcode, (outs cls:$R1), (ins),
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mnemonic#"\t$R1",
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[(set cls:$R1, src)]> {
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let R2 = 0;
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}
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class LoadMultipleRSY<string mnemonic, bits<16> opcode, RegisterOperand cls>
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: InstRSY<opcode, (outs cls:$R1, cls:$R3), (ins bdaddr20only:$BD2),
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mnemonic#"\t$R1, $R3, $BD2", []> {
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let mayLoad = 1;
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}
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class StoreRILPC<string mnemonic, bits<12> opcode, SDPatternOperator operator,
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RegisterOperand cls>
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: InstRIL<opcode, (outs), (ins cls:$R1, pcrel32:$I2),
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mnemonic#"\t$R1, $I2",
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[(operator cls:$R1, pcrel32:$I2)]> {
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let mayStore = 1;
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// We want PC-relative addresses to be tried ahead of BD and BDX addresses.
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// However, BDXs have two extra operands and are therefore 6 units more
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// complex.
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let AddedComplexity = 7;
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}
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class StoreRX<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode = bdxaddr12only>
|
|
: InstRX<opcode, (outs), (ins cls:$R1, mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(operator cls:$R1, mode:$XBD2)]> {
|
|
let mayStore = 1;
|
|
}
|
|
|
|
class StoreRXY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode = bdxaddr20only>
|
|
: InstRXY<opcode, (outs), (ins cls:$R1, mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(operator cls:$R1, mode:$XBD2)]> {
|
|
let mayStore = 1;
|
|
}
|
|
|
|
multiclass StoreRXPair<string mnemonic, bits<8> rxOpcode, bits<16> rxyOpcode,
|
|
SDPatternOperator operator, RegisterOperand cls> {
|
|
let Function = mnemonic ## #cls in {
|
|
let PairType = "12" in
|
|
def "" : StoreRX<mnemonic, rxOpcode, operator, cls, bdxaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : StoreRXY<mnemonic#"y", rxyOpcode, operator, cls, bdxaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class StoreMultipleRSY<string mnemonic, bits<16> opcode, RegisterOperand cls>
|
|
: InstRSY<opcode, (outs), (ins cls:$R1, cls:$R3, bdaddr20only:$BD2),
|
|
mnemonic#"\t$R1, $R3, $BD2", []> {
|
|
let mayStore = 1;
|
|
}
|
|
|
|
class StoreSI<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
Immediate imm, AddressingMode mode = bdaddr12only>
|
|
: InstSI<opcode, (outs), (ins mode:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(operator imm:$I2, mode:$BD1)]> {
|
|
let mayStore = 1;
|
|
}
|
|
|
|
class StoreSIY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
Immediate imm, AddressingMode mode = bdaddr20only>
|
|
: InstSIY<opcode, (outs), (ins mode:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(operator imm:$I2, mode:$BD1)]> {
|
|
let mayStore = 1;
|
|
}
|
|
|
|
class StoreSIL<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
Immediate imm>
|
|
: InstSIL<opcode, (outs), (ins bdaddr12only:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(operator imm:$I2, bdaddr12only:$BD1)]> {
|
|
let mayStore = 1;
|
|
}
|
|
|
|
multiclass StoreSIPair<string mnemonic, bits<8> siOpcode, bits<16> siyOpcode,
|
|
SDPatternOperator operator, Immediate imm> {
|
|
let Function = mnemonic in {
|
|
let PairType = "12" in
|
|
def "" : StoreSI<mnemonic, siOpcode, operator, imm, bdaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : StoreSIY<mnemonic#"y", siyOpcode, operator, imm, bdaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class UnaryRR<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRR<opcode, (outs cls1:$R1), (ins cls2:$R2),
|
|
mnemonic#"\t$R1, $R2",
|
|
[(set cls1:$R1, (operator cls2:$R2))]>;
|
|
|
|
class UnaryRRE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRRE<opcode, (outs cls1:$R1), (ins cls2:$R2),
|
|
mnemonic#"\t$R1, $R2",
|
|
[(set cls1:$R1, (operator cls2:$R2))]>;
|
|
|
|
class UnaryRRF<string mnemonic, bits<16> opcode, RegisterOperand cls1,
|
|
RegisterOperand cls2>
|
|
: InstRRF<opcode, (outs cls1:$R1), (ins uimm8zx4:$R3, cls2:$R2),
|
|
mnemonic#"\t$R1, $R3, $R2", []>;
|
|
|
|
class UnaryRI<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, Immediate imm>
|
|
: InstRI<opcode, (outs cls:$R1), (ins imm:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(set cls:$R1, (operator imm:$I2))]>;
|
|
|
|
class UnaryRIL<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, Immediate imm>
|
|
: InstRIL<opcode, (outs cls:$R1), (ins imm:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(set cls:$R1, (operator imm:$I2))]>;
|
|
|
|
class UnaryRILPC<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls>
|
|
: InstRIL<opcode, (outs cls:$R1), (ins pcrel32:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(set cls:$R1, (operator pcrel32:$I2))]> {
|
|
let mayLoad = 1;
|
|
// We want PC-relative addresses to be tried ahead of BD and BDX addresses.
|
|
// However, BDXs have two extra operands and are therefore 6 units more
|
|
// complex.
|
|
let AddedComplexity = 7;
|
|
}
|
|
|
|
class UnaryRX<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode = bdxaddr12only>
|
|
: InstRX<opcode, (outs cls:$R1), (ins mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(set cls:$R1, (operator mode:$XBD2))]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class UnaryRXE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls>
|
|
: InstRXE<opcode, (outs cls:$R1), (ins bdxaddr12only:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(set cls:$R1, (operator bdxaddr12only:$XBD2))]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class UnaryRXY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode = bdxaddr20only>
|
|
: InstRXY<opcode, (outs cls:$R1), (ins mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(set cls:$R1, (operator mode:$XBD2))]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
multiclass UnaryRXPair<string mnemonic, bits<8> rxOpcode, bits<16> rxyOpcode,
|
|
SDPatternOperator operator, RegisterOperand cls> {
|
|
let Function = mnemonic ## #cls in {
|
|
let PairType = "12" in
|
|
def "" : UnaryRX<mnemonic, rxOpcode, operator, cls, bdxaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : UnaryRXY<mnemonic#"y", rxyOpcode, operator, cls, bdxaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class BinaryRR<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRR<opcode, (outs cls1:$R1), (ins cls1:$R1src, cls2:$R2),
|
|
mnemonic#"\t$R1, $R2",
|
|
[(set cls1:$R1, (operator cls1:$R1src, cls2:$R2))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
class BinaryRRE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRRE<opcode, (outs cls1:$R1), (ins cls1:$R1src, cls2:$R2),
|
|
mnemonic#"\t$R1, $R2",
|
|
[(set cls1:$R1, (operator cls1:$R1src, cls2:$R2))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
class BinaryRRF<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRRF<opcode, (outs cls1:$R1), (ins cls1:$R3, cls2:$R2),
|
|
mnemonic#"\t$R1, $R3, $R2",
|
|
[(set cls1:$R1, (operator cls1:$R3, cls2:$R2))]>;
|
|
|
|
class BinaryRI<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, Immediate imm>
|
|
: InstRI<opcode, (outs cls:$R1), (ins cls:$R1src, imm:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(set cls:$R1, (operator cls:$R1src, imm:$I2))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
class BinaryRIL<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, Immediate imm>
|
|
: InstRIL<opcode, (outs cls:$R1), (ins cls:$R1src, imm:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(set cls:$R1, (operator cls:$R1src, imm:$I2))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
class BinaryRX<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load,
|
|
AddressingMode mode = bdxaddr12only>
|
|
: InstRX<opcode, (outs cls:$R1), (ins cls:$R1src, mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(set cls:$R1, (operator cls:$R1src, (load mode:$XBD2)))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class BinaryRXE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load>
|
|
: InstRXE<opcode, (outs cls:$R1), (ins cls:$R1src, bdxaddr12only:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(set cls:$R1, (operator cls:$R1src,
|
|
(load bdxaddr12only:$XBD2)))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class BinaryRXY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load,
|
|
AddressingMode mode = bdxaddr20only>
|
|
: InstRXY<opcode, (outs cls:$R1), (ins cls:$R1src, mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(set cls:$R1, (operator cls:$R1src, (load mode:$XBD2)))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
multiclass BinaryRXPair<string mnemonic, bits<8> rxOpcode, bits<16> rxyOpcode,
|
|
SDPatternOperator operator, RegisterOperand cls,
|
|
SDPatternOperator load> {
|
|
let Function = mnemonic ## #cls in {
|
|
let PairType = "12" in
|
|
def "" : BinaryRX<mnemonic, rxOpcode, operator, cls, load, bdxaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : BinaryRXY<mnemonic#"y", rxyOpcode, operator, cls, load,
|
|
bdxaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class BinarySI<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
Operand imm, AddressingMode mode = bdaddr12only>
|
|
: InstSI<opcode, (outs), (ins mode:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(store (operator (load mode:$BD1), imm:$I2), mode:$BD1)]> {
|
|
let mayLoad = 1;
|
|
let mayStore = 1;
|
|
}
|
|
|
|
class BinarySIY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
Operand imm, AddressingMode mode = bdaddr20only>
|
|
: InstSIY<opcode, (outs), (ins mode:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(store (operator (load mode:$BD1), imm:$I2), mode:$BD1)]> {
|
|
let mayLoad = 1;
|
|
let mayStore = 1;
|
|
}
|
|
|
|
multiclass BinarySIPair<string mnemonic, bits<8> siOpcode,
|
|
bits<16> siyOpcode, SDPatternOperator operator,
|
|
Operand imm> {
|
|
let Function = mnemonic ## #cls in {
|
|
let PairType = "12" in
|
|
def "" : BinarySI<mnemonic, siOpcode, operator, imm, bdaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : BinarySIY<mnemonic#"y", siyOpcode, operator, imm, bdaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class ShiftRS<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode>
|
|
: InstRS<opcode, (outs cls:$R1), (ins cls:$R1src, mode:$BD2),
|
|
mnemonic#"\t$R1, $BD2",
|
|
[(set cls:$R1, (operator cls:$R1src, mode:$BD2))]> {
|
|
let R3 = 0;
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
class ShiftRSY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode>
|
|
: InstRSY<opcode, (outs cls:$R1), (ins cls:$R3, mode:$BD2),
|
|
mnemonic#"\t$R1, $R3, $BD2",
|
|
[(set cls:$R1, (operator cls:$R3, mode:$BD2))]>;
|
|
|
|
class CompareRR<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRR<opcode, (outs), (ins cls1:$R1, cls2:$R2),
|
|
mnemonic#"\t$R1, $R2",
|
|
[(operator cls1:$R1, cls2:$R2)]>;
|
|
|
|
class CompareRRE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls1, RegisterOperand cls2>
|
|
: InstRRE<opcode, (outs), (ins cls1:$R1, cls2:$R2),
|
|
mnemonic#"\t$R1, $R2",
|
|
[(operator cls1:$R1, cls2:$R2)]>;
|
|
|
|
class CompareRI<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, Immediate imm>
|
|
: InstRI<opcode, (outs), (ins cls:$R1, imm:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(operator cls:$R1, imm:$I2)]>;
|
|
|
|
class CompareRIL<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, Immediate imm>
|
|
: InstRIL<opcode, (outs), (ins cls:$R1, imm:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(operator cls:$R1, imm:$I2)]>;
|
|
|
|
class CompareRILPC<string mnemonic, bits<12> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load>
|
|
: InstRIL<opcode, (outs), (ins cls:$R1, pcrel32:$I2),
|
|
mnemonic#"\t$R1, $I2",
|
|
[(operator cls:$R1, (load pcrel32:$I2))]> {
|
|
let mayLoad = 1;
|
|
// We want PC-relative addresses to be tried ahead of BD and BDX addresses.
|
|
// However, BDXs have two extra operands and are therefore 6 units more
|
|
// complex.
|
|
let AddedComplexity = 7;
|
|
}
|
|
|
|
class CompareRX<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load,
|
|
AddressingMode mode = bdxaddr12only>
|
|
: InstRX<opcode, (outs), (ins cls:$R1, mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(operator cls:$R1, (load mode:$XBD2))]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class CompareRXE<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load>
|
|
: InstRXE<opcode, (outs), (ins cls:$R1, bdxaddr12only:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(operator cls:$R1, (load bdxaddr12only:$XBD2))]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class CompareRXY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load,
|
|
AddressingMode mode = bdxaddr20only>
|
|
: InstRXY<opcode, (outs), (ins cls:$R1, mode:$XBD2),
|
|
mnemonic#"\t$R1, $XBD2",
|
|
[(operator cls:$R1, (load mode:$XBD2))]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
multiclass CompareRXPair<string mnemonic, bits<8> rxOpcode, bits<16> rxyOpcode,
|
|
SDPatternOperator operator, RegisterOperand cls,
|
|
SDPatternOperator load> {
|
|
let Function = mnemonic ## #cls in {
|
|
let PairType = "12" in
|
|
def "" : CompareRX<mnemonic, rxOpcode, operator, cls,
|
|
load, bdxaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : CompareRXY<mnemonic#"y", rxyOpcode, operator, cls,
|
|
load, bdxaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class CompareSI<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
SDPatternOperator load, Immediate imm,
|
|
AddressingMode mode = bdaddr12only>
|
|
: InstSI<opcode, (outs), (ins mode:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(operator (load mode:$BD1), imm:$I2)]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class CompareSIL<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
SDPatternOperator load, Immediate imm>
|
|
: InstSIL<opcode, (outs), (ins bdaddr12only:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(operator (load bdaddr12only:$BD1), imm:$I2)]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class CompareSIY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
SDPatternOperator load, Immediate imm,
|
|
AddressingMode mode = bdaddr20only>
|
|
: InstSIY<opcode, (outs), (ins mode:$BD1, imm:$I2),
|
|
mnemonic#"\t$BD1, $I2",
|
|
[(operator (load mode:$BD1), imm:$I2)]> {
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
multiclass CompareSIPair<string mnemonic, bits<8> siOpcode, bits<16> siyOpcode,
|
|
SDPatternOperator operator, SDPatternOperator load,
|
|
Immediate imm> {
|
|
let Function = mnemonic in {
|
|
let PairType = "12" in
|
|
def "" : CompareSI<mnemonic, siOpcode, operator, load, imm, bdaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : CompareSIY<mnemonic#"y", siyOpcode, operator, load, imm,
|
|
bdaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class TernaryRRD<string mnemonic, bits<16> opcode,
|
|
SDPatternOperator operator, RegisterOperand cls>
|
|
: InstRRD<opcode, (outs cls:$R1), (ins cls:$R1src, cls:$R3, cls:$R2),
|
|
mnemonic#"\t$R1, $R3, $R2",
|
|
[(set cls:$R1, (operator cls:$R1src, cls:$R3, cls:$R2))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
class TernaryRXF<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, SDPatternOperator load>
|
|
: InstRXF<opcode, (outs cls:$R1),
|
|
(ins cls:$R1src, cls:$R3, bdxaddr12only:$XBD2),
|
|
mnemonic#"\t$R1, $R3, $XBD2",
|
|
[(set cls:$R1, (operator cls:$R1src, cls:$R3,
|
|
(load bdxaddr12only:$XBD2)))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
let mayLoad = 1;
|
|
}
|
|
|
|
class CmpSwapRS<string mnemonic, bits<8> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode = bdaddr12only>
|
|
: InstRS<opcode, (outs cls:$R1), (ins cls:$R1src, cls:$R3, mode:$BD2),
|
|
mnemonic#"\t$R1, $R3, $BD2",
|
|
[(set cls:$R1, (operator mode:$BD2, cls:$R1src, cls:$R3))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
let mayLoad = 1;
|
|
let mayStore = 1;
|
|
}
|
|
|
|
class CmpSwapRSY<string mnemonic, bits<16> opcode, SDPatternOperator operator,
|
|
RegisterOperand cls, AddressingMode mode = bdaddr20only>
|
|
: InstRSY<opcode, (outs cls:$R1), (ins cls:$R1src, cls:$R3, mode:$BD2),
|
|
mnemonic#"\t$R1, $R3, $BD2",
|
|
[(set cls:$R1, (operator mode:$BD2, cls:$R1src, cls:$R3))]> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
let mayLoad = 1;
|
|
let mayStore = 1;
|
|
}
|
|
|
|
multiclass CmpSwapRSPair<string mnemonic, bits<8> rsOpcode, bits<16> rsyOpcode,
|
|
SDPatternOperator operator, RegisterOperand cls> {
|
|
let Function = mnemonic ## #cls in {
|
|
let PairType = "12" in
|
|
def "" : CmpSwapRS<mnemonic, rsOpcode, operator, cls, bdaddr12pair>;
|
|
let PairType = "20" in
|
|
def Y : CmpSwapRSY<mnemonic#"y", rsyOpcode, operator, cls, bdaddr20pair>;
|
|
}
|
|
}
|
|
|
|
class RotateSelectRIEf<string mnemonic, bits<16> opcode, RegisterOperand cls1,
|
|
RegisterOperand cls2>
|
|
: InstRIEf<opcode, (outs cls1:$R1),
|
|
(ins cls1:$R1src, cls2:$R2,
|
|
uimm8zx6:$I3, uimm8zx6:$I4, uimm8zx6:$I5),
|
|
mnemonic#"\t$R1, $R2, $I3, $I4, $I5", []> {
|
|
let Constraints = "$R1 = $R1src";
|
|
let DisableEncoding = "$R1src";
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Pseudo instructions
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Convenience instructions that get lowered to real instructions
|
|
// by either SystemZTargetLowering::EmitInstrWithCustomInserter()
|
|
// or SystemZInstrInfo::expandPostRAPseudo().
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
class Pseudo<dag outs, dag ins, list<dag> pattern>
|
|
: InstSystemZ<0, outs, ins, "", pattern> {
|
|
let isPseudo = 1;
|
|
let isCodeGenOnly = 1;
|
|
}
|
|
|
|
// Implements "$dst = $cc & (8 >> CC) ? $src1 : $src2", where CC is
|
|
// the value of the PSW's 2-bit condition code field.
|
|
class SelectWrapper<RegisterOperand cls>
|
|
: Pseudo<(outs cls:$dst), (ins cls:$src1, cls:$src2, i8imm:$cc),
|
|
[(set cls:$dst, (z_select_ccmask cls:$src1, cls:$src2, imm:$cc))]> {
|
|
let usesCustomInserter = 1;
|
|
// Although the instructions used by these nodes do not in themselves
|
|
// change CC, the insertion requires new blocks, and CC cannot be live
|
|
// across them.
|
|
let Defs = [CC];
|
|
let Uses = [CC];
|
|
}
|
|
|
|
// Stores $new to $addr if $cc is true ("" case) or false (Inv case).
|
|
multiclass CondStores<RegisterOperand cls, SDPatternOperator store,
|
|
SDPatternOperator load, AddressingMode mode> {
|
|
let Defs = [CC], Uses = [CC], usesCustomInserter = 1 in {
|
|
def "" : Pseudo<(outs), (ins mode:$addr, cls:$new, i8imm:$cc),
|
|
[(store (z_select_ccmask cls:$new, (load mode:$addr),
|
|
imm:$cc), mode:$addr)]>;
|
|
def Inv : Pseudo<(outs), (ins mode:$addr, cls:$new, i8imm:$cc),
|
|
[(store (z_select_ccmask (load mode:$addr), cls:$new,
|
|
imm:$cc), mode:$addr)]>;
|
|
}
|
|
}
|
|
|
|
// OPERATOR is ATOMIC_SWAP or an ATOMIC_LOAD_* operation. PAT and OPERAND
|
|
// describe the second (non-memory) operand.
|
|
class AtomicLoadBinary<SDPatternOperator operator, RegisterOperand cls,
|
|
dag pat, DAGOperand operand>
|
|
: Pseudo<(outs cls:$dst), (ins bdaddr20only:$ptr, operand:$src2),
|
|
[(set cls:$dst, (operator bdaddr20only:$ptr, pat))]> {
|
|
let Defs = [CC];
|
|
let Has20BitOffset = 1;
|
|
let mayLoad = 1;
|
|
let mayStore = 1;
|
|
let usesCustomInserter = 1;
|
|
}
|
|
|
|
// Specializations of AtomicLoadWBinary.
|
|
class AtomicLoadBinaryReg32<SDPatternOperator operator>
|
|
: AtomicLoadBinary<operator, GR32, (i32 GR32:$src2), GR32>;
|
|
class AtomicLoadBinaryImm32<SDPatternOperator operator, Immediate imm>
|
|
: AtomicLoadBinary<operator, GR32, (i32 imm:$src2), imm>;
|
|
class AtomicLoadBinaryReg64<SDPatternOperator operator>
|
|
: AtomicLoadBinary<operator, GR64, (i64 GR64:$src2), GR64>;
|
|
class AtomicLoadBinaryImm64<SDPatternOperator operator, Immediate imm>
|
|
: AtomicLoadBinary<operator, GR64, (i64 imm:$src2), imm>;
|
|
|
|
// OPERATOR is ATOMIC_SWAPW or an ATOMIC_LOADW_* operation. PAT and OPERAND
|
|
// describe the second (non-memory) operand.
|
|
class AtomicLoadWBinary<SDPatternOperator operator, dag pat,
|
|
DAGOperand operand>
|
|
: Pseudo<(outs GR32:$dst),
|
|
(ins bdaddr20only:$ptr, operand:$src2, ADDR32:$bitshift,
|
|
ADDR32:$negbitshift, uimm32:$bitsize),
|
|
[(set GR32:$dst, (operator bdaddr20only:$ptr, pat, ADDR32:$bitshift,
|
|
ADDR32:$negbitshift, uimm32:$bitsize))]> {
|
|
let Defs = [CC];
|
|
let Has20BitOffset = 1;
|
|
let mayLoad = 1;
|
|
let mayStore = 1;
|
|
let usesCustomInserter = 1;
|
|
}
|
|
|
|
// Specializations of AtomicLoadWBinary.
|
|
class AtomicLoadWBinaryReg<SDPatternOperator operator>
|
|
: AtomicLoadWBinary<operator, (i32 GR32:$src2), GR32>;
|
|
class AtomicLoadWBinaryImm<SDPatternOperator operator, Immediate imm>
|
|
: AtomicLoadWBinary<operator, (i32 imm:$src2), imm>;
|