1 //===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
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 file describes the Thumb2 instruction set.
12 //===----------------------------------------------------------------------===//
14 // IT block predicate field
15 def it_pred : Operand<i32> {
16 let PrintMethod = "printPredicateOperand";
19 // IT block condition mask
20 def it_mask : Operand<i32> {
21 let PrintMethod = "printThumbITMask";
24 // Table branch address
25 def tb_addrmode : Operand<i32> {
26 let PrintMethod = "printTBAddrMode";
29 // Shifted operands. No register controlled shifts for Thumb2.
30 // Note: We do not support rrx shifted operands yet.
31 def t2_so_reg : Operand<i32>, // reg imm
32 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
34 let PrintMethod = "printT2SOOperand";
35 let MIOperandInfo = (ops GPR, i32imm);
38 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
39 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
40 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), EVT::i32);
43 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
44 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
45 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), EVT::i32);
48 // t2_so_imm - Match a 32-bit immediate operand, which is an
49 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
50 // immediate splatted into multiple bytes of the word. t2_so_imm values are
51 // represented in the imm field in the same 12-bit form that they are encoded
52 // into t2_so_imm instructions: the 8-bit immediate is the least significant bits
53 // [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
54 def t2_so_imm : Operand<i32>,
56 return ARM_AM::getT2SOImmVal((uint32_t)N->getZExtValue()) != -1;
59 // t2_so_imm_not - Match an immediate that is a complement
61 def t2_so_imm_not : Operand<i32>,
63 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
64 }], t2_so_imm_not_XFORM>;
66 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
67 def t2_so_imm_neg : Operand<i32>,
69 return ARM_AM::getT2SOImmVal(-((int)N->getZExtValue())) != -1;
70 }], t2_so_imm_neg_XFORM>;
72 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
73 def imm1_31 : PatLeaf<(i32 imm), [{
74 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
77 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
78 def imm0_4095 : Operand<i32>,
80 return (uint32_t)N->getZExtValue() < 4096;
83 def imm0_4095_neg : PatLeaf<(i32 imm), [{
84 return (uint32_t)(-N->getZExtValue()) < 4096;
87 def imm0_255_neg : PatLeaf<(i32 imm), [{
88 return (uint32_t)(-N->getZExtValue()) < 255;
91 /// imm0_65535 predicate - True if the 32-bit immediate is in the range
93 def imm0_65535 : PatLeaf<(i32 imm), [{
94 return (uint32_t)N->getZExtValue() < 65536;
97 /// Split a 32-bit immediate into two 16 bit parts.
98 def t2_lo16 : SDNodeXForm<imm, [{
99 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() & 0xffff,
103 def t2_hi16 : SDNodeXForm<imm, [{
104 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, EVT::i32);
107 def t2_lo16AllZero : PatLeaf<(i32 imm), [{
108 // Returns true if all low 16-bits are 0.
109 return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
113 // Define Thumb2 specific addressing modes.
115 // t2addrmode_imm12 := reg + imm12
116 def t2addrmode_imm12 : Operand<i32>,
117 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
118 let PrintMethod = "printT2AddrModeImm12Operand";
119 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
122 // t2addrmode_imm8 := reg - imm8
123 def t2addrmode_imm8 : Operand<i32>,
124 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
125 let PrintMethod = "printT2AddrModeImm8Operand";
126 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
129 def t2am_imm8_offset : Operand<i32>,
130 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset", []>{
131 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
134 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
135 def t2addrmode_imm8s4 : Operand<i32>,
136 ComplexPattern<i32, 2, "SelectT2AddrModeImm8s4", []> {
137 let PrintMethod = "printT2AddrModeImm8s4Operand";
138 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
141 // t2addrmode_so_reg := reg + (reg << imm2)
142 def t2addrmode_so_reg : Operand<i32>,
143 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
144 let PrintMethod = "printT2AddrModeSoRegOperand";
145 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
149 //===----------------------------------------------------------------------===//
150 // Multiclass helpers...
153 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
154 /// unary operation that produces a value. These are predicable and can be
155 /// changed to modify CPSR.
156 multiclass T2I_un_irs<string opc, PatFrag opnode, bit Cheap = 0, bit ReMat = 0>{
158 def i : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iALU,
160 [(set GPR:$dst, (opnode t2_so_imm:$src))]> {
161 let isAsCheapAsAMove = Cheap;
162 let isReMaterializable = ReMat;
165 def r : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
166 opc, ".w $dst, $src",
167 [(set GPR:$dst, (opnode GPR:$src))]>;
169 def s : T2I<(outs GPR:$dst), (ins t2_so_reg:$src), IIC_iALU,
170 opc, ".w $dst, $src",
171 [(set GPR:$dst, (opnode t2_so_reg:$src))]>;
174 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
175 // binary operation that produces a value. These are predicable and can be
176 /// changed to modify CPSR.
177 multiclass T2I_bin_irs<string opc, PatFrag opnode,
178 bit Commutable = 0, string wide =""> {
180 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
181 opc, " $dst, $lhs, $rhs",
182 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
184 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
185 opc, !strconcat(wide, " $dst, $lhs, $rhs"),
186 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
187 let isCommutable = Commutable;
190 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
191 opc, !strconcat(wide, " $dst, $lhs, $rhs"),
192 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
195 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
196 // the ".w" prefix to indicate that they are wide.
197 multiclass T2I_bin_w_irs<string opc, PatFrag opnode, bit Commutable = 0> :
198 T2I_bin_irs<opc, opnode, Commutable, ".w">;
200 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
201 /// reversed. It doesn't define the 'rr' form since it's handled by its
202 /// T2I_bin_irs counterpart.
203 multiclass T2I_rbin_is<string opc, PatFrag opnode> {
205 def ri : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs), IIC_iALU,
206 opc, ".w $dst, $rhs, $lhs",
207 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>;
209 def rs : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs), IIC_iALU,
210 opc, " $dst, $rhs, $lhs",
211 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>;
214 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
215 /// instruction modifies the CPSR register.
216 let Defs = [CPSR] in {
217 multiclass T2I_bin_s_irs<string opc, PatFrag opnode, bit Commutable = 0> {
219 def ri : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
220 !strconcat(opc, "s"), ".w $dst, $lhs, $rhs",
221 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
223 def rr : T2I<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
224 !strconcat(opc, "s"), ".w $dst, $lhs, $rhs",
225 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
226 let isCommutable = Commutable;
229 def rs : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
230 !strconcat(opc, "s"), ".w $dst, $lhs, $rhs",
231 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
235 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
236 /// patterns for a binary operation that produces a value.
237 multiclass T2I_bin_ii12rs<string opc, PatFrag opnode, bit Commutable = 0> {
239 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
240 opc, ".w $dst, $lhs, $rhs",
241 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
243 def ri12 : T2sI<(outs GPR:$dst), (ins GPR:$lhs, imm0_4095:$rhs), IIC_iALU,
244 !strconcat(opc, "w"), " $dst, $lhs, $rhs",
245 [(set GPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]>;
247 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
248 opc, ".w $dst, $lhs, $rhs",
249 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
250 let isCommutable = Commutable;
253 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
254 opc, ".w $dst, $lhs, $rhs",
255 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
258 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
259 /// binary operation that produces a value and use and define the carry bit.
260 /// It's not predicable.
261 let Uses = [CPSR] in {
262 multiclass T2I_adde_sube_irs<string opc, PatFrag opnode, bit Commutable = 0> {
264 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
265 opc, " $dst, $lhs, $rhs",
266 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
267 Requires<[IsThumb2, CarryDefIsUnused]>;
269 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
270 opc, ".w $dst, $lhs, $rhs",
271 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
272 Requires<[IsThumb2, CarryDefIsUnused]> {
273 let isCommutable = Commutable;
276 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
277 opc, ".w $dst, $lhs, $rhs",
278 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
279 Requires<[IsThumb2, CarryDefIsUnused]>;
280 // Carry setting variants
282 def Sri : T2XI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
283 !strconcat(opc, "s $dst, $lhs, $rhs"),
284 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
285 Requires<[IsThumb2, CarryDefIsUsed]> {
289 def Srr : T2XI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
290 !strconcat(opc, "s.w $dst, $lhs, $rhs"),
291 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
292 Requires<[IsThumb2, CarryDefIsUsed]> {
294 let isCommutable = Commutable;
297 def Srs : T2XI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
298 !strconcat(opc, "s.w $dst, $lhs, $rhs"),
299 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
300 Requires<[IsThumb2, CarryDefIsUsed]> {
306 /// T2I_rbin_s_is - Same as T2I_rbin_is except sets 's' bit.
307 let Defs = [CPSR] in {
308 multiclass T2I_rbin_s_is<string opc, PatFrag opnode> {
310 def ri : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs, cc_out:$s),
312 !strconcat(opc, "${s}.w $dst, $rhs, $lhs"),
313 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>;
315 def rs : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs, cc_out:$s),
317 !strconcat(opc, "${s} $dst, $rhs, $lhs"),
318 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>;
322 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
323 // rotate operation that produces a value.
324 multiclass T2I_sh_ir<string opc, PatFrag opnode> {
326 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iALU,
327 opc, ".w $dst, $lhs, $rhs",
328 [(set GPR:$dst, (opnode GPR:$lhs, imm1_31:$rhs))]>;
330 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
331 opc, ".w $dst, $lhs, $rhs",
332 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>;
335 /// T21_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
336 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
337 /// a explicit result, only implicitly set CPSR.
338 let Defs = [CPSR] in {
339 multiclass T2I_cmp_is<string opc, PatFrag opnode> {
341 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
342 opc, ".w $lhs, $rhs",
343 [(opnode GPR:$lhs, t2_so_imm:$rhs)]>;
345 def rr : T2I<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
346 opc, ".w $lhs, $rhs",
347 [(opnode GPR:$lhs, GPR:$rhs)]>;
349 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
350 opc, ".w $lhs, $rhs",
351 [(opnode GPR:$lhs, t2_so_reg:$rhs)]>;
355 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
356 multiclass T2I_ld<string opc, PatFrag opnode> {
357 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), IIC_iLoad,
358 opc, ".w $dst, $addr",
359 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]>;
360 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr), IIC_iLoad,
362 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]>;
363 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), IIC_iLoad,
364 opc, ".w $dst, $addr",
365 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]>;
366 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoad,
367 opc, ".w $dst, $addr",
368 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]>;
371 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
372 multiclass T2I_st<string opc, PatFrag opnode> {
373 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), IIC_iStore,
374 opc, ".w $src, $addr",
375 [(opnode GPR:$src, t2addrmode_imm12:$addr)]>;
376 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr), IIC_iStore,
378 [(opnode GPR:$src, t2addrmode_imm8:$addr)]>;
379 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), IIC_iStore,
380 opc, ".w $src, $addr",
381 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]>;
384 /// T2I_picld - Defines the PIC load pattern.
385 class T2I_picld<string opc, PatFrag opnode> :
386 T2I<(outs GPR:$dst), (ins addrmodepc:$addr), IIC_iLoad,
387 !strconcat("${addr:label}:\n\t", opc), " $dst, $addr",
388 [(set GPR:$dst, (opnode addrmodepc:$addr))]>;
390 /// T2I_picst - Defines the PIC store pattern.
391 class T2I_picst<string opc, PatFrag opnode> :
392 T2I<(outs), (ins GPR:$src, addrmodepc:$addr), IIC_iStore,
393 !strconcat("${addr:label}:\n\t", opc), " $src, $addr",
394 [(opnode GPR:$src, addrmodepc:$addr)]>;
397 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
398 /// register and one whose operand is a register rotated by 8/16/24.
399 multiclass T2I_unary_rrot<string opc, PatFrag opnode> {
400 def r : T2I<(outs GPR:$dst), (ins GPR:$Src), IIC_iALU,
401 opc, ".w $dst, $Src",
402 [(set GPR:$dst, (opnode GPR:$Src))]>;
403 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$Src, i32imm:$rot), IIC_iALU,
404 opc, ".w $dst, $Src, ror $rot",
405 [(set GPR:$dst, (opnode (rotr GPR:$Src, rot_imm:$rot)))]>;
408 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
409 /// register and one whose operand is a register rotated by 8/16/24.
410 multiclass T2I_bin_rrot<string opc, PatFrag opnode> {
411 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS), IIC_iALU,
412 opc, " $dst, $LHS, $RHS",
413 [(set GPR:$dst, (opnode GPR:$LHS, GPR:$RHS))]>;
414 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
415 IIC_iALU, opc, " $dst, $LHS, $RHS, ror $rot",
416 [(set GPR:$dst, (opnode GPR:$LHS,
417 (rotr GPR:$RHS, rot_imm:$rot)))]>;
420 //===----------------------------------------------------------------------===//
422 //===----------------------------------------------------------------------===//
424 //===----------------------------------------------------------------------===//
425 // Miscellaneous Instructions.
428 // LEApcrel - Load a pc-relative address into a register without offending the
430 def t2LEApcrel : T2XI<(outs GPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALU,
431 "adr$p.w $dst, #$label", []>;
433 def t2LEApcrelJT : T2XI<(outs GPR:$dst),
434 (ins i32imm:$label, lane_cst:$id, pred:$p), IIC_iALU,
435 "adr$p.w $dst, #${label}_${id}", []>;
438 // ADD r, sp, {so_imm|i12}
439 def t2ADDrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm), IIC_iALU,
440 "add", ".w $dst, $sp, $imm", []>;
441 def t2ADDrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm), IIC_iALU,
442 "addw", " $dst, $sp, $imm", []>;
445 def t2ADDrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs), IIC_iALU,
446 "add", ".w $dst, $sp, $rhs", []>;
448 // SUB r, sp, {so_imm|i12}
449 def t2SUBrSPi : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm), IIC_iALU,
450 "sub", ".w $dst, $sp, $imm", []>;
451 def t2SUBrSPi12 : T2I<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm), IIC_iALU,
452 "subw", " $dst, $sp, $imm", []>;
455 def t2SUBrSPs : T2sI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs), IIC_iALU,
456 "sub", " $dst, $sp, $rhs", []>;
459 // Pseudo instruction that will expand into a t2SUBrSPi + a copy.
460 let usesCustomDAGSchedInserter = 1 in { // Expanded by the scheduler.
461 def t2SUBrSPi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
462 NoItinerary, "@ sub.w $dst, $sp, $imm", []>;
463 def t2SUBrSPi12_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, imm0_4095:$imm),
464 NoItinerary, "@ subw $dst, $sp, $imm", []>;
465 def t2SUBrSPs_ : PseudoInst<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
466 NoItinerary, "@ sub $dst, $sp, $rhs", []>;
467 } // usesCustomDAGSchedInserter
470 //===----------------------------------------------------------------------===//
471 // Load / store Instructions.
475 let canFoldAsLoad = 1 in
476 defm t2LDR : T2I_ld<"ldr", UnOpFrag<(load node:$Src)>>;
478 // Loads with zero extension
479 defm t2LDRH : T2I_ld<"ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
480 defm t2LDRB : T2I_ld<"ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
482 // Loads with sign extension
483 defm t2LDRSH : T2I_ld<"ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
484 defm t2LDRSB : T2I_ld<"ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
488 def t2LDRDi8 : T2Ii8s4<(outs GPR:$dst), (ins t2addrmode_imm8s4:$addr),
489 IIC_iLoad, "ldrd", " $dst, $addr", []>;
490 def t2LDRDpci : T2Ii8s4<(outs GPR:$dst), (ins i32imm:$addr), IIC_iLoad,
491 "ldrd", " $dst, $addr", []>;
494 // zextload i1 -> zextload i8
495 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
496 (t2LDRBi12 t2addrmode_imm12:$addr)>;
497 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
498 (t2LDRBi8 t2addrmode_imm8:$addr)>;
499 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
500 (t2LDRBs t2addrmode_so_reg:$addr)>;
501 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
502 (t2LDRBpci tconstpool:$addr)>;
504 // extload -> zextload
505 // FIXME: Reduce the number of patterns by legalizing extload to zextload
507 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
508 (t2LDRBi12 t2addrmode_imm12:$addr)>;
509 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
510 (t2LDRBi8 t2addrmode_imm8:$addr)>;
511 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
512 (t2LDRBs t2addrmode_so_reg:$addr)>;
513 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
514 (t2LDRBpci tconstpool:$addr)>;
516 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
517 (t2LDRBi12 t2addrmode_imm12:$addr)>;
518 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
519 (t2LDRBi8 t2addrmode_imm8:$addr)>;
520 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
521 (t2LDRBs t2addrmode_so_reg:$addr)>;
522 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
523 (t2LDRBpci tconstpool:$addr)>;
525 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
526 (t2LDRHi12 t2addrmode_imm12:$addr)>;
527 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
528 (t2LDRHi8 t2addrmode_imm8:$addr)>;
529 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
530 (t2LDRHs t2addrmode_so_reg:$addr)>;
531 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
532 (t2LDRHpci tconstpool:$addr)>;
536 def t2LDR_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
537 (ins t2addrmode_imm8:$addr),
538 AddrModeT2_i8, IndexModePre, IIC_iLoad,
539 "ldr", " $dst, $addr!", "$addr.base = $base_wb",
542 def t2LDR_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
543 (ins GPR:$base, t2am_imm8_offset:$offset),
544 AddrModeT2_i8, IndexModePost, IIC_iLoad,
545 "ldr", " $dst, [$base], $offset", "$base = $base_wb",
548 def t2LDRB_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
549 (ins t2addrmode_imm8:$addr),
550 AddrModeT2_i8, IndexModePre, IIC_iLoad,
551 "ldrb", " $dst, $addr!", "$addr.base = $base_wb",
553 def t2LDRB_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
554 (ins GPR:$base, t2am_imm8_offset:$offset),
555 AddrModeT2_i8, IndexModePost, IIC_iLoad,
556 "ldrb", " $dst, [$base], $offset", "$base = $base_wb",
559 def t2LDRH_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
560 (ins t2addrmode_imm8:$addr),
561 AddrModeT2_i8, IndexModePre, IIC_iLoad,
562 "ldrh", " $dst, $addr!", "$addr.base = $base_wb",
564 def t2LDRH_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
565 (ins GPR:$base, t2am_imm8_offset:$offset),
566 AddrModeT2_i8, IndexModePost, IIC_iLoad,
567 "ldrh", " $dst, [$base], $offset", "$base = $base_wb",
570 def t2LDRSB_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
571 (ins t2addrmode_imm8:$addr),
572 AddrModeT2_i8, IndexModePre, IIC_iLoad,
573 "ldrsb", " $dst, $addr!", "$addr.base = $base_wb",
575 def t2LDRSB_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
576 (ins GPR:$base, t2am_imm8_offset:$offset),
577 AddrModeT2_i8, IndexModePost, IIC_iLoad,
578 "ldrsb", " $dst, [$base], $offset", "$base = $base_wb",
581 def t2LDRSH_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
582 (ins t2addrmode_imm8:$addr),
583 AddrModeT2_i8, IndexModePre, IIC_iLoad,
584 "ldrsh", " $dst, $addr!", "$addr.base = $base_wb",
586 def t2LDRSH_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
587 (ins GPR:$base, t2am_imm8_offset:$offset),
588 AddrModeT2_i8, IndexModePost, IIC_iLoad,
589 "ldrsh", " $dst, [$base], $offset", "$base = $base_wb",
594 defm t2STR : T2I_st<"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
595 defm t2STRB : T2I_st<"strb", BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
596 defm t2STRH : T2I_st<"strh", BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
600 def t2STRDi8 : T2Ii8s4<(outs), (ins GPR:$src, t2addrmode_imm8s4:$addr), IIC_iStore,
601 "strd", " $src, $addr", []>;
604 def t2STR_PRE : T2Iidxldst<(outs GPR:$base_wb),
605 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
606 AddrModeT2_i8, IndexModePre, IIC_iStore,
607 "str", " $src, [$base, $offset]!", "$base = $base_wb",
609 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
611 def t2STR_POST : T2Iidxldst<(outs GPR:$base_wb),
612 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
613 AddrModeT2_i8, IndexModePost, IIC_iStore,
614 "str", " $src, [$base], $offset", "$base = $base_wb",
616 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
618 def t2STRH_PRE : T2Iidxldst<(outs GPR:$base_wb),
619 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
620 AddrModeT2_i8, IndexModePre, IIC_iStore,
621 "strh", " $src, [$base, $offset]!", "$base = $base_wb",
623 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
625 def t2STRH_POST : T2Iidxldst<(outs GPR:$base_wb),
626 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
627 AddrModeT2_i8, IndexModePost, IIC_iStore,
628 "strh", " $src, [$base], $offset", "$base = $base_wb",
630 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
632 def t2STRB_PRE : T2Iidxldst<(outs GPR:$base_wb),
633 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
634 AddrModeT2_i8, IndexModePre, IIC_iStore,
635 "strb", " $src, [$base, $offset]!", "$base = $base_wb",
637 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
639 def t2STRB_POST : T2Iidxldst<(outs GPR:$base_wb),
640 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
641 AddrModeT2_i8, IndexModePost, IIC_iStore,
642 "strb", " $src, [$base], $offset", "$base = $base_wb",
644 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
647 // FIXME: ldrd / strd pre / post variants
649 //===----------------------------------------------------------------------===//
650 // Load / store multiple Instructions.
654 def t2LDM : T2XI<(outs),
655 (ins addrmode4:$addr, pred:$p, reglist:$dst1, variable_ops),
656 IIC_iLoad, "ldm${addr:submode}${p}${addr:wide} $addr, $dst1", []>;
659 def t2STM : T2XI<(outs),
660 (ins addrmode4:$addr, pred:$p, reglist:$src1, variable_ops),
661 IIC_iStore, "stm${addr:submode}${p}${addr:wide} $addr, $src1", []>;
663 //===----------------------------------------------------------------------===//
664 // Move Instructions.
667 let neverHasSideEffects = 1 in
668 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
669 "mov", ".w $dst, $src", []>;
671 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
672 def t2MOVi : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src), IIC_iALU,
673 "mov", ".w $dst, $src",
674 [(set GPR:$dst, t2_so_imm:$src)]>;
676 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
677 def t2MOVi16 : T2I<(outs GPR:$dst), (ins i32imm:$src), IIC_iALU,
678 "movw", " $dst, $src",
679 [(set GPR:$dst, imm0_65535:$src)]>;
681 // FIXME: Also available in ARM mode.
682 let Constraints = "$src = $dst" in
683 def t2MOVTi16 : T2sI<(outs GPR:$dst), (ins GPR:$src, i32imm:$imm), IIC_iALU,
684 "movt", " $dst, $imm",
686 (or (and GPR:$src, 0xffff), t2_lo16AllZero:$imm))]>;
688 //===----------------------------------------------------------------------===//
689 // Extend Instructions.
694 defm t2SXTB : T2I_unary_rrot<"sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
695 defm t2SXTH : T2I_unary_rrot<"sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
697 defm t2SXTAB : T2I_bin_rrot<"sxtab",
698 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
699 defm t2SXTAH : T2I_bin_rrot<"sxtah",
700 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
702 // TODO: SXT(A){B|H}16
706 let AddedComplexity = 16 in {
707 defm t2UXTB : T2I_unary_rrot<"uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
708 defm t2UXTH : T2I_unary_rrot<"uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
709 defm t2UXTB16 : T2I_unary_rrot<"uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
711 def : T2Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
712 (t2UXTB16r_rot GPR:$Src, 24)>;
713 def : T2Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
714 (t2UXTB16r_rot GPR:$Src, 8)>;
716 defm t2UXTAB : T2I_bin_rrot<"uxtab",
717 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
718 defm t2UXTAH : T2I_bin_rrot<"uxtah",
719 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
722 //===----------------------------------------------------------------------===//
723 // Arithmetic Instructions.
726 defm t2ADD : T2I_bin_ii12rs<"add", BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
727 defm t2SUB : T2I_bin_ii12rs<"sub", BinOpFrag<(sub node:$LHS, node:$RHS)>>;
729 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
730 defm t2ADDS : T2I_bin_s_irs <"add", BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
731 defm t2SUBS : T2I_bin_s_irs <"sub", BinOpFrag<(subc node:$LHS, node:$RHS)>>;
733 defm t2ADC : T2I_adde_sube_irs<"adc",BinOpFrag<(adde node:$LHS, node:$RHS)>,1>;
734 defm t2SBC : T2I_adde_sube_irs<"sbc",BinOpFrag<(sube node:$LHS, node:$RHS)>>;
737 defm t2RSB : T2I_rbin_is <"rsb", BinOpFrag<(sub node:$LHS, node:$RHS)>>;
738 defm t2RSBS : T2I_rbin_s_is <"rsb", BinOpFrag<(subc node:$LHS, node:$RHS)>>;
740 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
741 let AddedComplexity = 1 in
742 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
743 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
744 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
745 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
746 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
747 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
750 //===----------------------------------------------------------------------===//
751 // Shift and rotate Instructions.
754 defm t2LSL : T2I_sh_ir<"lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
755 defm t2LSR : T2I_sh_ir<"lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
756 defm t2ASR : T2I_sh_ir<"asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
757 defm t2ROR : T2I_sh_ir<"ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
759 def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
760 "rrx", ".w $dst, $src",
761 [(set GPR:$dst, (ARMrrx GPR:$src))]>;
763 let Defs = [CPSR] in {
764 def t2MOVsrl_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
765 "lsrs.w $dst, $src, #1",
766 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>;
767 def t2MOVsra_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
768 "asrs.w $dst, $src, #1",
769 [(set GPR:$dst, (ARMsra_flag GPR:$src))]>;
772 //===----------------------------------------------------------------------===//
773 // Bitwise Instructions.
776 defm t2AND : T2I_bin_w_irs<"and", BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
777 defm t2ORR : T2I_bin_w_irs<"orr", BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
778 defm t2EOR : T2I_bin_w_irs<"eor", BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
780 defm t2BIC : T2I_bin_w_irs<"bic", BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
782 let Constraints = "$src = $dst" in
783 def t2BFC : T2I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm), IIC_iALU,
784 "bfc", " $dst, $imm",
785 [(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]>;
787 // FIXME: A8.6.18 BFI - Bitfield insert (Encoding T1)
790 defm t2ORN : T2I_bin_irs<"orn", BinOpFrag<(or node:$LHS, (not node:$RHS))>>;
792 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
793 def t2ORNri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs), IIC_iALU,
794 "orn", " $dst, $lhs, $rhs",
795 [(set GPR:$dst, (or GPR:$lhs, (not t2_so_imm:$rhs)))]>,
796 Requires<[IsThumb2, IsNotDarwin]>;
798 def t2ORNrr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALU,
799 "orn", " $dst, $lhs, $rhs",
800 [(set GPR:$dst, (or GPR:$lhs, (not GPR:$rhs)))]>;
801 def t2ORNrs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs), IIC_iALU,
802 "orn", " $dst, $lhs, $rhs",
803 [(set GPR:$dst, (or GPR:$lhs, (not t2_so_reg:$rhs)))]>;
805 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
806 let AddedComplexity = 1 in
807 defm t2MVN : T2I_un_irs <"mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
810 def : T2Pat<(and GPR:$src, t2_so_imm_not:$imm),
811 (t2BICri GPR:$src, t2_so_imm_not:$imm)>;
813 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
814 def : T2Pat<(or GPR:$src, t2_so_imm_not:$imm),
815 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>,
816 Requires<[IsThumb2, IsNotDarwin]>;
818 def : T2Pat<(t2_so_imm_not:$src),
819 (t2MVNi t2_so_imm_not:$src)>;
821 //===----------------------------------------------------------------------===//
822 // Multiply Instructions.
824 let isCommutable = 1 in
825 def t2MUL: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
826 "mul", " $dst, $a, $b",
827 [(set GPR:$dst, (mul GPR:$a, GPR:$b))]>;
829 def t2MLA: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iALU,
830 "mla", " $dst, $a, $b, $c",
831 [(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]>;
833 def t2MLS: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iALU,
834 "mls", " $dst, $a, $b, $c",
835 [(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]>;
837 // Extra precision multiplies with low / high results
838 let neverHasSideEffects = 1 in {
839 let isCommutable = 1 in {
840 def t2SMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iALU,
841 "smull", " $ldst, $hdst, $a, $b", []>;
843 def t2UMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iALU,
844 "umull", " $ldst, $hdst, $a, $b", []>;
847 // Multiply + accumulate
848 def t2SMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iALU,
849 "smlal", " $ldst, $hdst, $a, $b", []>;
851 def t2UMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iALU,
852 "umlal", " $ldst, $hdst, $a, $b", []>;
854 def t2UMAAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b), IIC_iALU,
855 "umaal", " $ldst, $hdst, $a, $b", []>;
856 } // neverHasSideEffects
858 // Most significant word multiply
859 def t2SMMUL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
860 "smmul", " $dst, $a, $b",
861 [(set GPR:$dst, (mulhs GPR:$a, GPR:$b))]>;
863 def t2SMMLA : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iALU,
864 "smmla", " $dst, $a, $b, $c",
865 [(set GPR:$dst, (add (mulhs GPR:$a, GPR:$b), GPR:$c))]>;
868 def t2SMMLS : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c), IIC_iALU,
869 "smmls", " $dst, $a, $b, $c",
870 [(set GPR:$dst, (sub GPR:$c, (mulhs GPR:$a, GPR:$b)))]>;
872 multiclass T2I_smul<string opc, PatFrag opnode> {
873 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
874 !strconcat(opc, "bb"), " $dst, $a, $b",
875 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
876 (sext_inreg GPR:$b, i16)))]>;
878 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
879 !strconcat(opc, "bt"), " $dst, $a, $b",
880 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
881 (sra GPR:$b, (i32 16))))]>;
883 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
884 !strconcat(opc, "tb"), " $dst, $a, $b",
885 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
886 (sext_inreg GPR:$b, i16)))]>;
888 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
889 !strconcat(opc, "tt"), " $dst, $a, $b",
890 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
891 (sra GPR:$b, (i32 16))))]>;
893 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
894 !strconcat(opc, "wb"), " $dst, $a, $b",
895 [(set GPR:$dst, (sra (opnode GPR:$a,
896 (sext_inreg GPR:$b, i16)), (i32 16)))]>;
898 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b), IIC_iALU,
899 !strconcat(opc, "wt"), " $dst, $a, $b",
900 [(set GPR:$dst, (sra (opnode GPR:$a,
901 (sra GPR:$b, (i32 16))), (i32 16)))]>;
905 multiclass T2I_smla<string opc, PatFrag opnode> {
906 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iALU,
907 !strconcat(opc, "bb"), " $dst, $a, $b, $acc",
908 [(set GPR:$dst, (add GPR:$acc,
909 (opnode (sext_inreg GPR:$a, i16),
910 (sext_inreg GPR:$b, i16))))]>;
912 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iALU,
913 !strconcat(opc, "bt"), " $dst, $a, $b, $acc",
914 [(set GPR:$dst, (add GPR:$acc, (opnode (sext_inreg GPR:$a, i16),
915 (sra GPR:$b, (i32 16)))))]>;
917 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iALU,
918 !strconcat(opc, "tb"), " $dst, $a, $b, $acc",
919 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
920 (sext_inreg GPR:$b, i16))))]>;
922 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iALU,
923 !strconcat(opc, "tt"), " $dst, $a, $b, $acc",
924 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
925 (sra GPR:$b, (i32 16)))))]>;
927 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iALU,
928 !strconcat(opc, "wb"), " $dst, $a, $b, $acc",
929 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
930 (sext_inreg GPR:$b, i16)), (i32 16))))]>;
932 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc), IIC_iALU,
933 !strconcat(opc, "wt"), " $dst, $a, $b, $acc",
934 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
935 (sra GPR:$b, (i32 16))), (i32 16))))]>;
938 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
939 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
941 // TODO: Halfword multiple accumulate long: SMLAL<x><y>
942 // TODO: Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
945 //===----------------------------------------------------------------------===//
946 // Misc. Arithmetic Instructions.
949 def t2CLZ : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
950 "clz", " $dst, $src",
951 [(set GPR:$dst, (ctlz GPR:$src))]>;
953 def t2REV : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
954 "rev", ".w $dst, $src",
955 [(set GPR:$dst, (bswap GPR:$src))]>;
957 def t2REV16 : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
958 "rev16", ".w $dst, $src",
960 (or (and (srl GPR:$src, (i32 8)), 0xFF),
961 (or (and (shl GPR:$src, (i32 8)), 0xFF00),
962 (or (and (srl GPR:$src, (i32 8)), 0xFF0000),
963 (and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
965 def t2REVSH : T2I<(outs GPR:$dst), (ins GPR:$src), IIC_iALU,
966 "revsh", ".w $dst, $src",
969 (or (srl (and GPR:$src, 0xFFFF), (i32 8)),
970 (shl GPR:$src, (i32 8))), i16))]>;
972 def t2PKHBT : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
973 IIC_iALU, "pkhbt", " $dst, $src1, $src2, LSL $shamt",
974 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
975 (and (shl GPR:$src2, (i32 imm:$shamt)),
978 // Alternate cases for PKHBT where identities eliminate some nodes.
979 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
980 (t2PKHBT GPR:$src1, GPR:$src2, 0)>;
981 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
982 (t2PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>;
984 def t2PKHTB : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
985 IIC_iALU, "pkhtb", " $dst, $src1, $src2, ASR $shamt",
986 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
987 (and (sra GPR:$src2, imm16_31:$shamt),
990 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
991 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
992 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
993 (t2PKHTB GPR:$src1, GPR:$src2, 16)>;
994 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000),
995 (and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
996 (t2PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>;
998 //===----------------------------------------------------------------------===//
999 // Comparison Instructions...
1002 defm t2CMP : T2I_cmp_is<"cmp",
1003 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
1004 defm t2CMPz : T2I_cmp_is<"cmp",
1005 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
1007 defm t2CMN : T2I_cmp_is<"cmn",
1008 BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
1009 defm t2CMNz : T2I_cmp_is<"cmn",
1010 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
1012 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
1013 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
1015 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
1016 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
1018 defm t2TST : T2I_cmp_is<"tst",
1019 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
1020 defm t2TEQ : T2I_cmp_is<"teq",
1021 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
1023 // A8.6.27 CBNZ, CBZ - Compare and branch on (non)zero.
1024 // Short range conditional branch. Looks awesome for loops. Need to figure
1025 // out how to use this one.
1028 // Conditional moves
1029 // FIXME: should be able to write a pattern for ARMcmov, but can't use
1030 // a two-value operand where a dag node expects two operands. :(
1031 def t2MOVCCr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true), IIC_iALU,
1032 "mov", ".w $dst, $true",
1033 [/*(set GPR:$dst, (ARMcmov GPR:$false, GPR:$true, imm:$cc, CCR:$ccr))*/]>,
1034 RegConstraint<"$false = $dst">;
1036 def t2MOVCCi : T2I<(outs GPR:$dst), (ins GPR:$false, t2_so_imm:$true), IIC_iALU,
1037 "mov", ".w $dst, $true",
1038 [/*(set GPR:$dst, (ARMcmov GPR:$false, t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
1039 RegConstraint<"$false = $dst">;
1041 def t2MOVCClsl : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true, i32imm:$rhs),
1042 IIC_iALU, "lsl", ".w $dst, $true, $rhs", []>,
1043 RegConstraint<"$false = $dst">;
1044 def t2MOVCClsr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true, i32imm:$rhs),
1045 IIC_iALU, "lsr", ".w $dst, $true, $rhs", []>,
1046 RegConstraint<"$false = $dst">;
1047 def t2MOVCCasr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true, i32imm:$rhs),
1048 IIC_iALU, "asr", ".w $dst, $true, $rhs", []>,
1049 RegConstraint<"$false = $dst">;
1050 def t2MOVCCror : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true, i32imm:$rhs),
1051 IIC_iALU, "ror", ".w $dst, $true, $rhs", []>,
1052 RegConstraint<"$false = $dst">;
1054 //===----------------------------------------------------------------------===//
1058 // __aeabi_read_tp preserves the registers r1-r3.
1060 Defs = [R0, R12, LR, CPSR] in {
1061 def t2TPsoft : T2XI<(outs), (ins), IIC_Br,
1062 "bl __aeabi_read_tp",
1063 [(set R0, ARMthread_pointer)]>;
1066 //===----------------------------------------------------------------------===//
1067 // Control-Flow Instructions
1070 // FIXME: remove when we have a way to marking a MI with these properties.
1071 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
1073 // FIXME: Should pc be an implicit operand like PICADD, etc?
1074 let isReturn = 1, isTerminator = 1, mayLoad = 1 in
1075 def t2LDM_RET : T2XI<(outs),
1076 (ins addrmode4:$addr, pred:$p, reglist:$dst1, variable_ops),
1077 IIC_iLoad, "ldm${addr:submode}${p}${addr:wide} $addr, $dst1",
1080 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
1081 let isPredicable = 1 in
1082 def t2B : T2XI<(outs), (ins brtarget:$target), IIC_Br,
1086 let isNotDuplicable = 1, isIndirectBranch = 1 in {
1089 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
1090 IIC_Br, "mov pc, $target\n$jt",
1091 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
1093 // FIXME: Add a non-pc based case that can be predicated.
1096 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
1097 IIC_Br, "tbb $index\n$jt", []>;
1101 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
1102 IIC_Br, "tbh $index\n$jt", []>;
1103 } // isNotDuplicable, isIndirectBranch
1105 } // isBranch, isTerminator, isBarrier
1107 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
1108 // a two-value operand where a dag node expects two operands. :(
1109 let isBranch = 1, isTerminator = 1 in
1110 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
1112 [/*(ARMbrcond bb:$target, imm:$cc)*/]>;
1116 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
1117 AddrModeNone, Size2Bytes, IIC_iALU,
1118 "it$mask $cc", "", []>;
1120 //===----------------------------------------------------------------------===//
1121 // Non-Instruction Patterns
1124 // ConstantPool, GlobalAddress, and JumpTable
1125 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>;
1126 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
1127 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
1128 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
1130 // Large immediate handling.
1132 def : T2Pat<(i32 imm:$src),
1133 (t2MOVTi16 (t2MOVi16 (t2_lo16 imm:$src)), (t2_hi16 imm:$src))>;