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, $rt"), [], Itin, FrmFR, opstr>,
32 let Constraints = "$F = $fd";
35 // cond:float, data:int
36 class CMov_F_I_FT<string opstr, RegisterOperand RC, InstrItinClass Itin,
37 SDPatternOperator OpNode = null_frag> :
38 InstSE<(outs RC:$rd), (ins RC:$rs, FCCRegsOpnd:$fcc, RC:$F),
39 !strconcat(opstr, "\t$rd, $rs, $fcc"),
40 [(set RC:$rd, (OpNode RC:$rs, FCCRegsOpnd:$fcc, RC:$F))],
41 Itin, FrmFR, opstr>, HARDFLOAT {
42 let Constraints = "$F = $rd";
45 // cond:float, data:float
46 class CMov_F_F_FT<string opstr, RegisterOperand RC, InstrItinClass Itin,
47 SDPatternOperator OpNode = null_frag> :
48 InstSE<(outs RC:$fd), (ins RC:$fs, FCCRegsOpnd:$fcc, RC:$F),
49 !strconcat(opstr, "\t$fd, $fs, $fcc"),
50 [(set RC:$fd, (OpNode RC:$fs, FCCRegsOpnd:$fcc, RC:$F))],
51 Itin, FrmFR, opstr>, HARDFLOAT {
52 let Constraints = "$F = $fd";
56 multiclass MovzPats0<RegisterClass CRC, RegisterClass DRC,
57 Instruction MOVZInst, Instruction SLTOp,
58 Instruction SLTuOp, Instruction SLTiOp,
59 Instruction SLTiuOp> {
60 def : MipsPat<(select (i32 (setge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
61 (MOVZInst DRC:$T, (SLTOp CRC:$lhs, CRC:$rhs), DRC:$F)>;
62 def : MipsPat<(select (i32 (setuge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
63 (MOVZInst DRC:$T, (SLTuOp CRC:$lhs, CRC:$rhs), DRC:$F)>;
64 def : MipsPat<(select (i32 (setge CRC:$lhs, immSExt16:$rhs)), DRC:$T, DRC:$F),
65 (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, immSExt16:$rhs), DRC:$F)>;
66 def : MipsPat<(select (i32 (setuge CRC:$lh, immSExt16:$rh)), DRC:$T, DRC:$F),
67 (MOVZInst DRC:$T, (SLTiuOp CRC:$lh, immSExt16:$rh), DRC:$F)>;
68 def : MipsPat<(select (i32 (setle CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
69 (MOVZInst DRC:$T, (SLTOp CRC:$rhs, CRC:$lhs), DRC:$F)>;
70 def : MipsPat<(select (i32 (setule CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
71 (MOVZInst DRC:$T, (SLTuOp CRC:$rhs, CRC:$lhs), DRC:$F)>;
72 def : MipsPat<(select (i32 (setgt CRC:$lhs, immSExt16Plus1:$rhs)),
74 (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, (Plus1 imm:$rhs)), DRC:$F)>;
75 def : MipsPat<(select (i32 (setugt CRC:$lhs, immSExt16Plus1:$rhs)),
77 (MOVZInst DRC:$T, (SLTiuOp CRC:$lhs, (Plus1 imm:$rhs)),
81 multiclass MovzPats1<RegisterClass CRC, RegisterClass DRC,
82 Instruction MOVZInst, Instruction XOROp> {
83 def : MipsPat<(select (i32 (seteq CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
84 (MOVZInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>;
85 def : MipsPat<(select (i32 (seteq CRC:$lhs, 0)), DRC:$T, DRC:$F),
86 (MOVZInst DRC:$T, CRC:$lhs, DRC:$F)>;
89 multiclass MovzPats2<RegisterClass CRC, RegisterClass DRC,
90 Instruction MOVZInst, Instruction XORiOp> {
92 (select (i32 (seteq CRC:$lhs, immZExt16:$uimm16)), DRC:$T, DRC:$F),
93 (MOVZInst DRC:$T, (XORiOp CRC:$lhs, immZExt16:$uimm16), DRC:$F)>;
96 multiclass MovnPats<RegisterClass CRC, RegisterClass DRC, Instruction MOVNInst,
98 def : MipsPat<(select (i32 (setne CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F),
99 (MOVNInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>;
100 def : MipsPat<(select CRC:$cond, DRC:$T, DRC:$F),
101 (MOVNInst DRC:$T, CRC:$cond, DRC:$F)>;
102 def : MipsPat<(select (i32 (setne CRC:$lhs, 0)),DRC:$T, DRC:$F),
103 (MOVNInst DRC:$T, CRC:$lhs, DRC:$F)>;
106 // Instantiation of instructions.
107 let AdditionalPredicates = [NotInMicroMips] in {
108 def MOVZ_I_I : MMRel, CMov_I_I_FT<"movz", GPR32Opnd, GPR32Opnd, II_MOVZ>,
109 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6;
111 let isCodeGenOnly = 1 in {
112 def MOVZ_I_I64 : CMov_I_I_FT<"movz", GPR32Opnd, GPR64Opnd, II_MOVZ>,
113 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6;
114 def MOVZ_I64_I : CMov_I_I_FT<"movz", GPR64Opnd, GPR32Opnd, II_MOVZ>,
115 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6;
116 def MOVZ_I64_I64 : CMov_I_I_FT<"movz", GPR64Opnd, GPR64Opnd, II_MOVZ>,
117 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6;
120 def MOVN_I_I : MMRel, CMov_I_I_FT<"movn", GPR32Opnd, GPR32Opnd, II_MOVN>,
121 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6;
123 let isCodeGenOnly = 1 in {
124 def MOVN_I_I64 : CMov_I_I_FT<"movn", GPR32Opnd, GPR64Opnd, II_MOVN>,
125 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6;
126 def MOVN_I64_I : CMov_I_I_FT<"movn", GPR64Opnd, GPR32Opnd, II_MOVN>,
127 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6;
128 def MOVN_I64_I64 : CMov_I_I_FT<"movn", GPR64Opnd, GPR64Opnd, II_MOVN>,
129 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6;
131 def MOVZ_I_S : MMRel, CMov_I_F_FT<"movz.s", GPR32Opnd, FGR32Opnd, II_MOVZ_S>,
132 CMov_I_F_FM<18, 16>, INSN_MIPS4_32_NOT_32R6_64R6;
134 let isCodeGenOnly = 1 in
135 def MOVZ_I64_S : CMov_I_F_FT<"movz.s", GPR64Opnd, FGR32Opnd, II_MOVZ_S>,
136 CMov_I_F_FM<18, 16>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
138 def MOVN_I_S : MMRel, CMov_I_F_FT<"movn.s", GPR32Opnd, FGR32Opnd, II_MOVN_S>,
139 CMov_I_F_FM<19, 16>, INSN_MIPS4_32_NOT_32R6_64R6;
141 let isCodeGenOnly = 1 in
142 def MOVN_I64_S : CMov_I_F_FT<"movn.s", GPR64Opnd, FGR32Opnd, II_MOVN_S>,
143 CMov_I_F_FM<19, 16>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
145 def MOVZ_I_D32 : MMRel, CMov_I_F_FT<"movz.d", GPR32Opnd, AFGR64Opnd,
146 II_MOVZ_D>, CMov_I_F_FM<18, 17>,
147 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32;
148 def MOVN_I_D32 : MMRel, CMov_I_F_FT<"movn.d", GPR32Opnd, AFGR64Opnd,
149 II_MOVN_D>, CMov_I_F_FM<19, 17>,
150 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32;
152 let DecoderNamespace = "MipsFP64" in {
153 def MOVZ_I_D64 : CMov_I_F_FT<"movz.d", GPR32Opnd, FGR64Opnd, II_MOVZ_D>,
154 CMov_I_F_FM<18, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
155 def MOVN_I_D64 : CMov_I_F_FT<"movn.d", GPR32Opnd, FGR64Opnd, II_MOVN_D>,
156 CMov_I_F_FM<19, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
157 let isCodeGenOnly = 1 in {
158 def MOVZ_I64_D64 : CMov_I_F_FT<"movz.d", GPR64Opnd, FGR64Opnd, II_MOVZ_D>,
159 CMov_I_F_FM<18, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
160 def MOVN_I64_D64 : CMov_I_F_FT<"movn.d", GPR64Opnd, FGR64Opnd, II_MOVN_D>,
161 CMov_I_F_FM<19, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
165 def MOVT_I : MMRel, CMov_F_I_FT<"movt", GPR32Opnd, II_MOVT, MipsCMovFP_T>,
166 CMov_F_I_FM<1>, INSN_MIPS4_32_NOT_32R6_64R6;
168 let isCodeGenOnly = 1 in
169 def MOVT_I64 : CMov_F_I_FT<"movt", GPR64Opnd, II_MOVT, MipsCMovFP_T>,
170 CMov_F_I_FM<1>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
172 def MOVF_I : MMRel, CMov_F_I_FT<"movf", GPR32Opnd, II_MOVF, MipsCMovFP_F>,
173 CMov_F_I_FM<0>, INSN_MIPS4_32_NOT_32R6_64R6;
175 let isCodeGenOnly = 1 in
176 def MOVF_I64 : CMov_F_I_FT<"movf", GPR64Opnd, II_MOVF, MipsCMovFP_F>,
177 CMov_F_I_FM<0>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
178 def MOVT_S : MMRel, CMov_F_F_FT<"movt.s", FGR32Opnd, II_MOVT_S, MipsCMovFP_T>,
179 CMov_F_F_FM<16, 1>, INSN_MIPS4_32_NOT_32R6_64R6;
180 def MOVF_S : MMRel, CMov_F_F_FT<"movf.s", FGR32Opnd, II_MOVF_S, MipsCMovFP_F>,
181 CMov_F_F_FM<16, 0>, INSN_MIPS4_32_NOT_32R6_64R6;
183 def MOVT_D32 : MMRel, CMov_F_F_FT<"movt.d", AFGR64Opnd, II_MOVT_D,
184 MipsCMovFP_T>, CMov_F_F_FM<17, 1>,
185 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32;
186 def MOVF_D32 : MMRel, CMov_F_F_FT<"movf.d", AFGR64Opnd, II_MOVF_D,
187 MipsCMovFP_F>, CMov_F_F_FM<17, 0>,
188 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32;
190 let DecoderNamespace = "MipsFP64" in {
191 def MOVT_D64 : CMov_F_F_FT<"movt.d", FGR64Opnd, II_MOVT_D, MipsCMovFP_T>,
192 CMov_F_F_FM<17, 1>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
193 def MOVF_D64 : CMov_F_F_FT<"movf.d", FGR64Opnd, II_MOVF_D, MipsCMovFP_F>,
194 CMov_F_F_FM<17, 0>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
197 // Instantiation of conditional move patterns.
198 defm : MovzPats0<GPR32, GPR32, MOVZ_I_I, SLT, SLTu, SLTi, SLTiu>,
199 INSN_MIPS4_32_NOT_32R6_64R6;
200 defm : MovzPats1<GPR32, GPR32, MOVZ_I_I, XOR>, INSN_MIPS4_32_NOT_32R6_64R6;
201 defm : MovzPats2<GPR32, GPR32, MOVZ_I_I, XORi>, INSN_MIPS4_32_NOT_32R6_64R6;
203 defm : MovzPats0<GPR32, GPR64, MOVZ_I_I64, SLT, SLTu, SLTi, SLTiu>,
204 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
205 defm : MovzPats0<GPR64, GPR32, MOVZ_I_I, SLT64, SLTu64, SLTi64, SLTiu64>,
206 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
207 defm : MovzPats0<GPR64, GPR64, MOVZ_I_I64, SLT64, SLTu64, SLTi64, SLTiu64>,
208 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
209 defm : MovzPats1<GPR32, GPR64, MOVZ_I_I64, XOR>,
210 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
211 defm : MovzPats1<GPR64, GPR32, MOVZ_I64_I, XOR64>,
212 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
213 defm : MovzPats1<GPR64, GPR64, MOVZ_I64_I64, XOR64>,
214 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
215 defm : MovzPats2<GPR32, GPR64, MOVZ_I_I64, XORi>,
216 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
217 defm : MovzPats2<GPR64, GPR32, MOVZ_I64_I, XORi64>,
218 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
219 defm : MovzPats2<GPR64, GPR64, MOVZ_I64_I64, XORi64>,
220 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
222 defm : MovnPats<GPR32, GPR32, MOVN_I_I, XOR>, INSN_MIPS4_32_NOT_32R6_64R6;
224 defm : MovnPats<GPR32, GPR64, MOVN_I_I64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6,
226 defm : MovnPats<GPR64, GPR32, MOVN_I64_I, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6,
228 defm : MovnPats<GPR64, GPR64, MOVN_I64_I64, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6,
231 defm : MovzPats0<GPR32, FGR32, MOVZ_I_S, SLT, SLTu, SLTi, SLTiu>,
232 INSN_MIPS4_32_NOT_32R6_64R6;
233 defm : MovzPats1<GPR32, FGR32, MOVZ_I_S, XOR>, INSN_MIPS4_32_NOT_32R6_64R6;
234 defm : MovnPats<GPR32, FGR32, MOVN_I_S, XOR>, INSN_MIPS4_32_NOT_32R6_64R6;
236 defm : MovzPats0<GPR64, FGR32, MOVZ_I_S, SLT64, SLTu64, SLTi64, SLTiu64>,
237 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64;
238 defm : MovzPats1<GPR64, FGR32, MOVZ_I64_S, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6,
240 defm : MovnPats<GPR64, FGR32, MOVN_I64_S, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6,
243 defm : MovzPats0<GPR32, AFGR64, MOVZ_I_D32, SLT, SLTu, SLTi, SLTiu>,
244 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32;
245 defm : MovzPats1<GPR32, AFGR64, MOVZ_I_D32, XOR>, INSN_MIPS4_32_NOT_32R6_64R6,
247 defm : MovnPats<GPR32, AFGR64, MOVN_I_D32, XOR>, INSN_MIPS4_32_NOT_32R6_64R6,
250 defm : MovzPats0<GPR32, FGR64, MOVZ_I_D64, SLT, SLTu, SLTi, SLTiu>,
251 INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
252 defm : MovzPats0<GPR64, FGR64, MOVZ_I_D64, SLT64, SLTu64, SLTi64, SLTiu64>,
253 INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
254 defm : MovzPats1<GPR32, FGR64, MOVZ_I_D64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6,
256 defm : MovzPats1<GPR64, FGR64, MOVZ_I64_D64, XOR64>,
257 INSN_MIPS4_32_NOT_32R6_64R6, FGR_64;
258 defm : MovnPats<GPR32, FGR64, MOVN_I_D64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6,
260 defm : MovnPats<GPR64, FGR64, MOVN_I64_D64, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6,
263 // For targets that don't have conditional-move instructions
264 // we have to match SELECT nodes with pseudo instructions.
265 let usesCustomInserter = 1 in {
266 class Select_Pseudo<RegisterOperand RC> :
267 PseudoSE<(outs RC:$dst), (ins GPR32Opnd:$cond, RC:$T, RC:$F),
268 [(set RC:$dst, (select GPR32Opnd:$cond, RC:$T, RC:$F))]>,
271 class SelectFP_Pseudo_T<RegisterOperand RC> :
272 PseudoSE<(outs RC:$dst), (ins FCCRegsOpnd:$cond, RC:$T, RC:$F),
273 [(set RC:$dst, (MipsCMovFP_T RC:$T, FCCRegsOpnd:$cond, RC:$F))]>,
276 class SelectFP_Pseudo_F<RegisterOperand RC> :
277 PseudoSE<(outs RC:$dst), (ins FCCRegsOpnd:$cond, RC:$T, RC:$F),
278 [(set RC:$dst, (MipsCMovFP_F RC:$T, FCCRegsOpnd:$cond, RC:$F))]>,
282 def PseudoSELECT_I : Select_Pseudo<GPR32Opnd>;
283 def PseudoSELECT_I64 : Select_Pseudo<GPR64Opnd>;
284 def PseudoSELECT_S : Select_Pseudo<FGR32Opnd>;
285 def PseudoSELECT_D32 : Select_Pseudo<AFGR64Opnd>, FGR_32;
286 def PseudoSELECT_D64 : Select_Pseudo<FGR64Opnd>, FGR_64;
288 def PseudoSELECTFP_T_I : SelectFP_Pseudo_T<GPR32Opnd>;
289 def PseudoSELECTFP_T_I64 : SelectFP_Pseudo_T<GPR64Opnd>;
290 def PseudoSELECTFP_T_S : SelectFP_Pseudo_T<FGR32Opnd>;
291 def PseudoSELECTFP_T_D32 : SelectFP_Pseudo_T<AFGR64Opnd>, FGR_32;
292 def PseudoSELECTFP_T_D64 : SelectFP_Pseudo_T<FGR64Opnd>, FGR_64;
294 def PseudoSELECTFP_F_I : SelectFP_Pseudo_F<GPR32Opnd>;
295 def PseudoSELECTFP_F_I64 : SelectFP_Pseudo_F<GPR64Opnd>;
296 def PseudoSELECTFP_F_S : SelectFP_Pseudo_F<FGR32Opnd>;
297 def PseudoSELECTFP_F_D32 : SelectFP_Pseudo_F<AFGR64Opnd>, FGR_32;
298 def PseudoSELECTFP_F_D64 : SelectFP_Pseudo_F<FGR64Opnd>, FGR_64;