1 //===-- MipsCondMov.td - Describe Mips Conditional Moves --*- tablegen -*--===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This is the Conditional Moves implementation.
12 //===----------------------------------------------------------------------===//
15 // These instructions are expanded in
16 // MipsISelLowering::EmitInstrWithCustomInserter if target does not have
17 // conditional move instructions.
19 class CMov_I_I_FT<string opstr, RegisterOperand CRC, RegisterOperand DRC,
20 InstrItinClass Itin> :
21 InstSE<(outs DRC:$rd), (ins DRC:$rs, CRC:$rt, DRC:$F),
22 !strconcat(opstr, "\t$rd, $rs, $rt"), [], Itin, FrmFR, opstr> {
23 let Constraints = "$F = $rd";
26 // cond:int, data:float
27 class CMov_I_F_FT<string opstr, RegisterOperand CRC, RegisterOperand DRC,
28 InstrItinClass Itin> :
29 InstSE<(outs DRC:$fd), (ins DRC:$fs, CRC:$rt, DRC:$F),
30 !strconcat(opstr, "\t$fd, $fs, $rt"), [], Itin, FrmFR> {
31 let Constraints = "$F = $fd";
34 // cond:float, data:int
35 class CMov_F_I_FT<string opstr, RegisterOperand RC, InstrItinClass Itin,
36 SDPatternOperator OpNode = null_frag> :
37 InstSE<(outs RC:$rd), (ins RC:$rs, FCCRegsOpnd:$fcc, RC:$F),
38 !strconcat(opstr, "\t$rd, $rs, $fcc"),
39 [(set RC:$rd, (OpNode RC:$rs, FCCRegsOpnd:$fcc, RC:$F))],
41 let Constraints = "$F = $rd";
44 // cond:float, data:float
45 class CMov_F_F_FT<string opstr, RegisterOperand RC, InstrItinClass Itin,
46 SDPatternOperator OpNode = null_frag> :
47 InstSE<(outs RC:$fd), (ins RC:$fs, FCCRegsOpnd:$fcc, RC:$F),
48 !strconcat(opstr, "\t$fd, $fs, $fcc"),
49 [(set RC:$fd, (OpNode RC:$fs, FCCRegsOpnd:$fcc, RC:$F))],
51 let Constraints = "$F = $fd";
55 multiclass MovzPats0<RegisterClass CRC, RegisterClass DRC,
56 Instruction MOVZInst, Instruction SLTOp,
57 Instruction SLTuOp, Instruction SLTiOp,
58 Instruction SLTiuOp> {
59 def : MipsPat<(select (i32 (setge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
60 (MOVZInst DRC:$T, (SLTOp CRC:$lhs, CRC:$rhs), DRC:$F)>;
61 def : MipsPat<(select (i32 (setuge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
62 (MOVZInst DRC:$T, (SLTuOp CRC:$lhs, CRC:$rhs), DRC:$F)>;
63 def : MipsPat<(select (i32 (setge CRC:$lhs, immSExt16:$rhs)), DRC:$T, DRC:$F),
64 (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, immSExt16:$rhs), DRC:$F)>;
65 def : MipsPat<(select (i32 (setuge CRC:$lh, immSExt16:$rh)), DRC:$T, DRC:$F),
66 (MOVZInst DRC:$T, (SLTiuOp CRC:$lh, immSExt16:$rh), DRC:$F)>;
67 def : MipsPat<(select (i32 (setle CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
68 (MOVZInst DRC:$T, (SLTOp CRC:$rhs, CRC:$lhs), DRC:$F)>;
69 def : MipsPat<(select (i32 (setule CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
70 (MOVZInst DRC:$T, (SLTuOp CRC:$rhs, CRC:$lhs), DRC:$F)>;
71 def : MipsPat<(select (i32 (setgt CRC:$lhs, immSExt16Plus1:$rhs)),
73 (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, (Plus1 imm:$rhs)), DRC:$F)>;
74 def : MipsPat<(select (i32 (setugt CRC:$lhs, immSExt16Plus1:$rhs)),
76 (MOVZInst DRC:$T, (SLTiuOp CRC:$lhs, (Plus1 imm:$rhs)),
80 multiclass MovzPats1<RegisterClass CRC, RegisterClass DRC,
81 Instruction MOVZInst, Instruction XOROp> {
82 def : MipsPat<(select (i32 (seteq CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
83 (MOVZInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>;
84 def : MipsPat<(select (i32 (seteq CRC:$lhs, 0)), DRC:$T, DRC:$F),
85 (MOVZInst DRC:$T, CRC:$lhs, DRC:$F)>;
88 multiclass MovzPats2<RegisterClass CRC, RegisterClass DRC,
89 Instruction MOVZInst, Instruction XORiOp> {
91 (select (i32 (seteq CRC:$lhs, immZExt16:$uimm16)), DRC:$T, DRC:$F),
92 (MOVZInst DRC:$T, (XORiOp CRC:$lhs, immZExt16:$uimm16), DRC:$F)>;
95 multiclass MovnPats<RegisterClass CRC, RegisterClass DRC, Instruction MOVNInst,
97 def : MipsPat<(select (i32 (setne CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
98 (MOVNInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>;
99 def : MipsPat<(select CRC:$cond, DRC:$T, DRC:$F),
100 (MOVNInst DRC:$T, CRC:$cond, DRC:$F)>;
101 def : MipsPat<(select (i32 (setne CRC:$lhs, 0)),DRC:$T, DRC:$F),
102 (MOVNInst DRC:$T, CRC:$lhs, DRC:$F)>;
105 // Instantiation of instructions.
106 def MOVZ_I_I : MMRel, CMov_I_I_FT<"movz", GPR32Opnd, GPR32Opnd, IIArith>,
109 let Predicates = [HasStdEnc], isCodeGenOnly = 1 in {
110 def MOVZ_I_I64 : CMov_I_I_FT<"movz", GPR32Opnd, GPR64Opnd, IIArith>,
112 def MOVZ_I64_I : CMov_I_I_FT<"movz", GPR64Opnd, GPR32Opnd, IIArith>,
114 def MOVZ_I64_I64 : CMov_I_I_FT<"movz", GPR64Opnd, GPR64Opnd, IIArith>,
118 def MOVN_I_I : MMRel, CMov_I_I_FT<"movn", GPR32Opnd, GPR32Opnd, IIArith>,
121 let Predicates = [HasStdEnc], isCodeGenOnly = 1 in {
122 def MOVN_I_I64 : CMov_I_I_FT<"movn", GPR32Opnd, GPR64Opnd, IIArith>,
124 def MOVN_I64_I : CMov_I_I_FT<"movn", GPR64Opnd, GPR32Opnd, IIArith>,
126 def MOVN_I64_I64 : CMov_I_I_FT<"movn", GPR64Opnd, GPR64Opnd, IIArith>,
130 def MOVZ_I_S : CMov_I_F_FT<"movz.s", GPR32Opnd, FGR32Opnd, IIFmove>,
133 let isCodeGenOnly = 1 in
134 def MOVZ_I64_S : CMov_I_F_FT<"movz.s", GPR64Opnd, FGR32Opnd, IIFmove>,
135 CMov_I_F_FM<18, 16>, Requires<[HasMips64, HasStdEnc]>;
137 def MOVN_I_S : CMov_I_F_FT<"movn.s", GPR32Opnd, FGR32Opnd, IIFmove>,
140 let isCodeGenOnly = 1 in
141 def MOVN_I64_S : CMov_I_F_FT<"movn.s", GPR64Opnd, FGR32Opnd, IIFmove>,
142 CMov_I_F_FM<19, 16>, Requires<[HasMips64, HasStdEnc]>;
144 let Predicates = [NotFP64bit, HasStdEnc] in {
145 def MOVZ_I_D32 : CMov_I_F_FT<"movz.d", GPR32Opnd, AFGR64Opnd, IIFmove>,
147 def MOVN_I_D32 : CMov_I_F_FT<"movn.d", GPR32Opnd, AFGR64Opnd, IIFmove>,
151 let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64" in {
152 def MOVZ_I_D64 : CMov_I_F_FT<"movz.d", GPR32Opnd, FGR64Opnd, IIFmove>,
154 def MOVN_I_D64 : CMov_I_F_FT<"movn.d", GPR32Opnd, FGR64Opnd, IIFmove>,
156 let isCodeGenOnly = 1 in {
157 def MOVZ_I64_D64 : CMov_I_F_FT<"movz.d", GPR64Opnd, FGR64Opnd,
158 IIFmove>, CMov_I_F_FM<18, 17>;
159 def MOVN_I64_D64 : CMov_I_F_FT<"movn.d", GPR64Opnd, FGR64Opnd,
160 IIFmove>, CMov_I_F_FM<19, 17>;
164 def MOVT_I : MMRel, CMov_F_I_FT<"movt", GPR32Opnd, IIArith, MipsCMovFP_T>,
167 let isCodeGenOnly = 1 in
168 def MOVT_I64 : CMov_F_I_FT<"movt", GPR64Opnd, IIArith, MipsCMovFP_T>,
169 CMov_F_I_FM<1>, Requires<[HasMips64, HasStdEnc]>;
171 def MOVF_I : MMRel, CMov_F_I_FT<"movf", GPR32Opnd, IIArith, MipsCMovFP_F>,
174 let isCodeGenOnly = 1 in
175 def MOVF_I64 : CMov_F_I_FT<"movf", GPR64Opnd, IIArith, MipsCMovFP_F>,
176 CMov_F_I_FM<0>, Requires<[HasMips64, HasStdEnc]>;
178 def MOVT_S : CMov_F_F_FT<"movt.s", FGR32Opnd, IIFmove, MipsCMovFP_T>,
180 def MOVF_S : CMov_F_F_FT<"movf.s", FGR32Opnd, IIFmove, MipsCMovFP_F>,
183 let Predicates = [NotFP64bit, HasStdEnc] in {
184 def MOVT_D32 : CMov_F_F_FT<"movt.d", AFGR64Opnd, IIFmove, MipsCMovFP_T>,
186 def MOVF_D32 : CMov_F_F_FT<"movf.d", AFGR64Opnd, IIFmove, MipsCMovFP_F>,
190 let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64" in {
191 def MOVT_D64 : CMov_F_F_FT<"movt.d", FGR64Opnd, IIFmove, MipsCMovFP_T>,
193 def MOVF_D64 : CMov_F_F_FT<"movf.d", FGR64Opnd, IIFmove, MipsCMovFP_F>,
197 // Instantiation of conditional move patterns.
198 defm : MovzPats0<GPR32, GPR32, MOVZ_I_I, SLT, SLTu, SLTi, SLTiu>;
199 defm : MovzPats1<GPR32, GPR32, MOVZ_I_I, XOR>;
200 defm : MovzPats2<GPR32, GPR32, MOVZ_I_I, XORi>;
201 let Predicates = [HasMips64, HasStdEnc] in {
202 defm : MovzPats0<GPR32, GPR64, MOVZ_I_I64, SLT, SLTu, SLTi, SLTiu>;
203 defm : MovzPats0<GPR64, GPR32, MOVZ_I_I, SLT64, SLTu64, SLTi64,
205 defm : MovzPats0<GPR64, GPR64, MOVZ_I_I64, SLT64, SLTu64, SLTi64,
207 defm : MovzPats1<GPR32, GPR64, MOVZ_I_I64, XOR>;
208 defm : MovzPats1<GPR64, GPR32, MOVZ_I64_I, XOR64>;
209 defm : MovzPats1<GPR64, GPR64, MOVZ_I64_I64, XOR64>;
210 defm : MovzPats2<GPR32, GPR64, MOVZ_I_I64, XORi>;
211 defm : MovzPats2<GPR64, GPR32, MOVZ_I64_I, XORi64>;
212 defm : MovzPats2<GPR64, GPR64, MOVZ_I64_I64, XORi64>;
215 defm : MovnPats<GPR32, GPR32, MOVN_I_I, XOR>;
216 let Predicates = [HasMips64, HasStdEnc] in {
217 defm : MovnPats<GPR32, GPR64, MOVN_I_I64, XOR>;
218 defm : MovnPats<GPR64, GPR32, MOVN_I64_I, XOR64>;
219 defm : MovnPats<GPR64, GPR64, MOVN_I64_I64, XOR64>;
222 defm : MovzPats0<GPR32, FGR32, MOVZ_I_S, SLT, SLTu, SLTi, SLTiu>;
223 defm : MovzPats1<GPR32, FGR32, MOVZ_I_S, XOR>;
224 defm : MovnPats<GPR32, FGR32, MOVN_I_S, XOR>;
225 let Predicates = [HasMips64, HasStdEnc] in {
226 defm : MovzPats0<GPR64, FGR32, MOVZ_I_S, SLT64, SLTu64, SLTi64,
228 defm : MovzPats1<GPR64, FGR32, MOVZ_I64_S, XOR64>;
229 defm : MovnPats<GPR64, FGR32, MOVN_I64_S, XOR64>;
232 let Predicates = [NotFP64bit, HasStdEnc] in {
233 defm : MovzPats0<GPR32, AFGR64, MOVZ_I_D32, SLT, SLTu, SLTi, SLTiu>;
234 defm : MovzPats1<GPR32, AFGR64, MOVZ_I_D32, XOR>;
235 defm : MovnPats<GPR32, AFGR64, MOVN_I_D32, XOR>;
237 let Predicates = [IsFP64bit, HasStdEnc] in {
238 defm : MovzPats0<GPR32, FGR64, MOVZ_I_D64, SLT, SLTu, SLTi, SLTiu>;
239 defm : MovzPats0<GPR64, FGR64, MOVZ_I_D64, SLT64, SLTu64, SLTi64,
241 defm : MovzPats1<GPR32, FGR64, MOVZ_I_D64, XOR>;
242 defm : MovzPats1<GPR64, FGR64, MOVZ_I64_D64, XOR64>;
243 defm : MovnPats<GPR32, FGR64, MOVN_I_D64, XOR>;
244 defm : MovnPats<GPR64, FGR64, MOVN_I64_D64, XOR64>;