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()), MVT::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()), MVT::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 : PatLeaf<(i32 imm), [{
79 return (uint32_t)N->getZExtValue() < 4096;
82 def imm0_4095_neg : PatLeaf<(i32 imm), [{
83 return (uint32_t)(-N->getZExtValue()) < 4096;
86 /// imm0_65535 predicate - True if the 32-bit immediate is in the range
88 def imm0_65535 : PatLeaf<(i32 imm), [{
89 return (uint32_t)N->getZExtValue() < 65536;
92 /// Split a 32-bit immediate into two 16 bit parts.
93 def t2_lo16 : SDNodeXForm<imm, [{
94 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() & 0xffff,
98 def t2_hi16 : SDNodeXForm<imm, [{
99 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
102 def t2_lo16AllZero : PatLeaf<(i32 imm), [{
103 // Returns true if all low 16-bits are 0.
104 return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
108 // Define Thumb2 specific addressing modes.
110 // t2addrmode_imm12 := reg + imm12
111 def t2addrmode_imm12 : Operand<i32>,
112 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
113 let PrintMethod = "printT2AddrModeImm12Operand";
114 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
117 // t2addrmode_imm8 := reg - imm8
118 def t2addrmode_imm8 : Operand<i32>,
119 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
120 let PrintMethod = "printT2AddrModeImm8Operand";
121 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
124 def t2am_imm8_offset : Operand<i32>,
125 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset", []>{
126 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
129 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
130 def t2addrmode_imm8s4 : Operand<i32>,
131 ComplexPattern<i32, 2, "SelectT2AddrModeImm8s4", []> {
132 let PrintMethod = "printT2AddrModeImm8s4Operand";
133 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
136 // t2addrmode_so_reg := reg + (reg << imm2)
137 def t2addrmode_so_reg : Operand<i32>,
138 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
139 let PrintMethod = "printT2AddrModeSoRegOperand";
140 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
144 //===----------------------------------------------------------------------===//
145 // Multiclass helpers...
148 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
149 /// unary operation that produces a value. These are predicable and can be
150 /// changed to modify CPSR.
151 multiclass T2I_un_irs<string opc, PatFrag opnode, bit Cheap = 0, bit ReMat = 0>{
153 def i : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src),
155 [(set GPR:$dst, (opnode t2_so_imm:$src))]> {
156 let isAsCheapAsAMove = Cheap;
157 let isReMaterializable = ReMat;
160 def r : T2I<(outs GPR:$dst), (ins GPR:$src),
161 opc, ".w $dst, $src",
162 [(set GPR:$dst, (opnode GPR:$src))]>;
164 def s : T2I<(outs GPR:$dst), (ins t2_so_reg:$src),
165 opc, ".w $dst, $src",
166 [(set GPR:$dst, (opnode t2_so_reg:$src))]>;
169 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
170 // binary operation that produces a value. These are predicable and can be
171 /// changed to modify CPSR.
172 multiclass T2I_bin_irs<string opc, PatFrag opnode,
173 bit Commutable = 0, string wide =""> {
175 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
176 opc, " $dst, $lhs, $rhs",
177 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
179 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
180 opc, !strconcat(wide, " $dst, $lhs, $rhs"),
181 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
182 let isCommutable = Commutable;
185 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
186 opc, !strconcat(wide, " $dst, $lhs, $rhs"),
187 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
190 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
191 // the ".w" prefix to indicate that they are wide.
192 multiclass T2I_bin_w_irs<string opc, PatFrag opnode, bit Commutable = 0> :
193 T2I_bin_irs<opc, opnode, Commutable, ".w">;
195 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
196 /// reversed. It doesn't define the 'rr' form since it's handled by its
197 /// T2I_bin_irs counterpart.
198 multiclass T2I_rbin_is<string opc, PatFrag opnode> {
200 def ri : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs),
201 opc, ".w $dst, $rhs, $lhs",
202 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>;
204 def rs : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs),
205 opc, " $dst, $rhs, $lhs",
206 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>;
209 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
210 /// instruction modifies the CPSR register.
211 let Defs = [CPSR] in {
212 multiclass T2I_bin_s_irs<string opc, PatFrag opnode, bit Commutable = 0> {
214 def ri : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
215 !strconcat(opc, "s"), ".w $dst, $lhs, $rhs",
216 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
218 def rr : T2I<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
219 !strconcat(opc, "s"), ".w $dst, $lhs, $rhs",
220 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
221 let isCommutable = Commutable;
224 def rs : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
225 !strconcat(opc, "s"), ".w $dst, $lhs, $rhs",
226 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
230 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
231 /// patterns for a binary operation that produces a value.
232 multiclass T2I_bin_ii12rs<string opc, PatFrag opnode, bit Commutable = 0> {
234 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
235 opc, ".w $dst, $lhs, $rhs",
236 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
238 def ri12 : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs),
239 !strconcat(opc, "w"), " $dst, $lhs, $rhs",
240 [(set GPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]>;
242 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
243 opc, ".w $dst, $lhs, $rhs",
244 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
245 let isCommutable = Commutable;
248 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
249 opc, ".w $dst, $lhs, $rhs",
250 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
253 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
254 /// binary operation that produces a value and use and define the carry bit.
255 /// It's not predicable.
256 let Uses = [CPSR] in {
257 multiclass T2I_adde_sube_irs<string opc, PatFrag opnode, bit Commutable = 0> {
259 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
260 opc, " $dst, $lhs, $rhs",
261 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
262 Requires<[IsThumb2, CarryDefIsUnused]>;
264 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
265 opc, ".w $dst, $lhs, $rhs",
266 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
267 Requires<[IsThumb2, CarryDefIsUnused]> {
268 let isCommutable = Commutable;
271 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
272 opc, ".w $dst, $lhs, $rhs",
273 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
274 Requires<[IsThumb2, CarryDefIsUnused]>;
275 // Carry setting variants
277 def Sri : T2XI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
278 !strconcat(opc, "s $dst, $lhs, $rhs"),
279 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
280 Requires<[IsThumb2, CarryDefIsUsed]> {
284 def Srr : T2XI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
285 !strconcat(opc, "s.w $dst, $lhs, $rhs"),
286 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
287 Requires<[IsThumb2, CarryDefIsUsed]> {
289 let isCommutable = Commutable;
292 def Srs : T2XI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
293 !strconcat(opc, "s.w $dst, $lhs, $rhs"),
294 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
295 Requires<[IsThumb2, CarryDefIsUsed]> {
301 /// T2I_rbin_s_is - Same as T2I_rbin_is except sets 's' bit.
302 let Defs = [CPSR] in {
303 multiclass T2I_rbin_s_is<string opc, PatFrag opnode> {
305 def ri : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs, cc_out:$s),
306 !strconcat(opc, "${s}.w $dst, $rhs, $lhs"),
307 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>;
309 def rs : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs, cc_out:$s),
310 !strconcat(opc, "${s} $dst, $rhs, $lhs"),
311 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>;
315 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
316 // rotate operation that produces a value.
317 multiclass T2I_sh_ir<string opc, PatFrag opnode> {
319 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs),
320 opc, ".w $dst, $lhs, $rhs",
321 [(set GPR:$dst, (opnode GPR:$lhs, imm1_31:$rhs))]>;
323 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
324 opc, ".w $dst, $lhs, $rhs",
325 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>;
328 /// T21_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
329 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
330 /// a explicit result, only implicitly set CPSR.
331 let Defs = [CPSR] in {
332 multiclass T2I_cmp_is<string opc, PatFrag opnode> {
334 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs),
335 opc, ".w $lhs, $rhs",
336 [(opnode GPR:$lhs, t2_so_imm:$rhs)]>;
338 def rr : T2I<(outs), (ins GPR:$lhs, GPR:$rhs),
339 opc, ".w $lhs, $rhs",
340 [(opnode GPR:$lhs, GPR:$rhs)]>;
342 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs),
343 opc, ".w $lhs, $rhs",
344 [(opnode GPR:$lhs, t2_so_reg:$rhs)]>;
348 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
349 multiclass T2I_ld<string opc, PatFrag opnode> {
350 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr),
351 opc, ".w $dst, $addr",
352 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]>;
353 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr),
355 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]>;
356 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr),
357 opc, ".w $dst, $addr",
358 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]>;
359 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr),
360 opc, ".w $dst, $addr",
361 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]>;
364 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
365 multiclass T2I_st<string opc, PatFrag opnode> {
366 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr),
367 opc, ".w $src, $addr",
368 [(opnode GPR:$src, t2addrmode_imm12:$addr)]>;
369 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr),
371 [(opnode GPR:$src, t2addrmode_imm8:$addr)]>;
372 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr),
373 opc, ".w $src, $addr",
374 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]>;
377 /// T2I_picld - Defines the PIC load pattern.
378 class T2I_picld<string opc, PatFrag opnode> :
379 T2I<(outs GPR:$dst), (ins addrmodepc:$addr),
380 !strconcat("${addr:label}:\n\t", opc), " $dst, $addr",
381 [(set GPR:$dst, (opnode addrmodepc:$addr))]>;
383 /// T2I_picst - Defines the PIC store pattern.
384 class T2I_picst<string opc, PatFrag opnode> :
385 T2I<(outs), (ins GPR:$src, addrmodepc:$addr),
386 !strconcat("${addr:label}:\n\t", opc), " $src, $addr",
387 [(opnode GPR:$src, addrmodepc:$addr)]>;
390 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
391 /// register and one whose operand is a register rotated by 8/16/24.
392 multiclass T2I_unary_rrot<string opc, PatFrag opnode> {
393 def r : T2I<(outs GPR:$dst), (ins GPR:$Src),
394 opc, ".w $dst, $Src",
395 [(set GPR:$dst, (opnode GPR:$Src))]>;
396 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$Src, i32imm:$rot),
397 opc, ".w $dst, $Src, ror $rot",
398 [(set GPR:$dst, (opnode (rotr GPR:$Src, rot_imm:$rot)))]>;
401 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
402 /// register and one whose operand is a register rotated by 8/16/24.
403 multiclass T2I_bin_rrot<string opc, PatFrag opnode> {
404 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS),
405 opc, " $dst, $LHS, $RHS",
406 [(set GPR:$dst, (opnode GPR:$LHS, GPR:$RHS))]>;
407 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
408 opc, " $dst, $LHS, $RHS, ror $rot",
409 [(set GPR:$dst, (opnode GPR:$LHS,
410 (rotr GPR:$RHS, rot_imm:$rot)))]>;
413 //===----------------------------------------------------------------------===//
415 //===----------------------------------------------------------------------===//
417 //===----------------------------------------------------------------------===//
418 // Miscellaneous Instructions.
421 let isNotDuplicable = 1 in
422 def t2PICADD : T2XI<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp),
423 "$cp:\n\tadd.w $dst, $lhs, pc",
424 [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>;
427 // LEApcrel - Load a pc-relative address into a register without offending the
429 def t2LEApcrel : T2XI<(outs GPR:$dst), (ins i32imm:$label, pred:$p),
430 "adr$p.w $dst, #$label", []>;
432 def t2LEApcrelJT : T2XI<(outs GPR:$dst),
433 (ins i32imm:$label, i32imm:$id, pred:$p),
434 "adr$p.w $dst, #${label}_${id:no_hash}", []>;
436 //===----------------------------------------------------------------------===//
437 // Load / store Instructions.
441 let canFoldAsLoad = 1 in
442 defm t2LDR : T2I_ld<"ldr", UnOpFrag<(load node:$Src)>>;
444 // Loads with zero extension
445 defm t2LDRH : T2I_ld<"ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
446 defm t2LDRB : T2I_ld<"ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
448 // Loads with sign extension
449 defm t2LDRSH : T2I_ld<"ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
450 defm t2LDRSB : T2I_ld<"ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
454 def t2LDRDi8 : T2Ii8s4<(outs GPR:$dst), (ins t2addrmode_imm8s4:$addr),
455 "ldrd", " $dst, $addr", []>;
456 def t2LDRDpci : T2Ii8s4<(outs GPR:$dst), (ins i32imm:$addr),
457 "ldrd", " $dst, $addr", []>;
460 // zextload i1 -> zextload i8
461 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
462 (t2LDRBi12 t2addrmode_imm12:$addr)>;
463 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
464 (t2LDRBi8 t2addrmode_imm8:$addr)>;
465 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
466 (t2LDRBs t2addrmode_so_reg:$addr)>;
467 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
468 (t2LDRBpci tconstpool:$addr)>;
470 // extload -> zextload
471 // FIXME: Reduce the number of patterns by legalizing extload to zextload
473 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
474 (t2LDRBi12 t2addrmode_imm12:$addr)>;
475 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
476 (t2LDRBi8 t2addrmode_imm8:$addr)>;
477 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
478 (t2LDRBs t2addrmode_so_reg:$addr)>;
479 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
480 (t2LDRBpci tconstpool:$addr)>;
482 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
483 (t2LDRBi12 t2addrmode_imm12:$addr)>;
484 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
485 (t2LDRBi8 t2addrmode_imm8:$addr)>;
486 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
487 (t2LDRBs t2addrmode_so_reg:$addr)>;
488 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
489 (t2LDRBpci tconstpool:$addr)>;
491 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
492 (t2LDRHi12 t2addrmode_imm12:$addr)>;
493 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
494 (t2LDRHi8 t2addrmode_imm8:$addr)>;
495 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
496 (t2LDRHs t2addrmode_so_reg:$addr)>;
497 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
498 (t2LDRHpci tconstpool:$addr)>;
502 def t2LDR_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
503 (ins t2addrmode_imm8:$addr),
504 AddrModeT2_i8, IndexModePre,
505 "ldr", " $dst, $addr!", "$addr.base = $base_wb",
508 def t2LDR_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
509 (ins GPR:$base, t2am_imm8_offset:$offset),
510 AddrModeT2_i8, IndexModePost,
511 "ldr", " $dst, [$base], $offset", "$base = $base_wb",
514 def t2LDRB_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
515 (ins t2addrmode_imm8:$addr),
516 AddrModeT2_i8, IndexModePre,
517 "ldrb", " $dst, $addr!", "$addr.base = $base_wb",
519 def t2LDRB_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
520 (ins GPR:$base, t2am_imm8_offset:$offset),
521 AddrModeT2_i8, IndexModePost,
522 "ldrb", " $dst, [$base], $offset", "$base = $base_wb",
525 def t2LDRH_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
526 (ins t2addrmode_imm8:$addr),
527 AddrModeT2_i8, IndexModePre,
528 "ldrh", " $dst, $addr!", "$addr.base = $base_wb",
530 def t2LDRH_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
531 (ins GPR:$base, t2am_imm8_offset:$offset),
532 AddrModeT2_i8, IndexModePost,
533 "ldrh", " $dst, [$base], $offset", "$base = $base_wb",
536 def t2LDRSB_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
537 (ins t2addrmode_imm8:$addr),
538 AddrModeT2_i8, IndexModePre,
539 "ldrsb", " $dst, $addr!", "$addr.base = $base_wb",
541 def t2LDRSB_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
542 (ins GPR:$base, t2am_imm8_offset:$offset),
543 AddrModeT2_i8, IndexModePost,
544 "ldrsb", " $dst, [$base], $offset", "$base = $base_wb",
547 def t2LDRSH_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
548 (ins t2addrmode_imm8:$addr),
549 AddrModeT2_i8, IndexModePre,
550 "ldrsh", " $dst, $addr!", "$addr.base = $base_wb",
552 def t2LDRSH_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
553 (ins GPR:$base, t2am_imm8_offset:$offset),
554 AddrModeT2_i8, IndexModePost,
555 "ldrsh", " $dst, [$base], $offset", "$base = $base_wb",
560 defm t2STR : T2I_st<"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
561 defm t2STRB : T2I_st<"strb", BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
562 defm t2STRH : T2I_st<"strh", BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
566 def t2STRDi8 : T2Ii8s4<(outs), (ins GPR:$src, t2addrmode_imm8s4:$addr),
567 "strd", " $src, $addr", []>;
570 def t2STR_PRE : T2Iidxldst<(outs GPR:$base_wb),
571 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
572 AddrModeT2_i8, IndexModePre,
573 "str", " $src, [$base, $offset]!", "$base = $base_wb",
575 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
577 def t2STR_POST : T2Iidxldst<(outs GPR:$base_wb),
578 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
579 AddrModeT2_i8, IndexModePost,
580 "str", " $src, [$base], $offset", "$base = $base_wb",
582 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
584 def t2STRH_PRE : T2Iidxldst<(outs GPR:$base_wb),
585 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
586 AddrModeT2_i8, IndexModePre,
587 "strh", " $src, [$base, $offset]!", "$base = $base_wb",
589 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
591 def t2STRH_POST : T2Iidxldst<(outs GPR:$base_wb),
592 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
593 AddrModeT2_i8, IndexModePost,
594 "strh", " $src, [$base], $offset", "$base = $base_wb",
596 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
598 def t2STRB_PRE : T2Iidxldst<(outs GPR:$base_wb),
599 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
600 AddrModeT2_i8, IndexModePre,
601 "strb", " $src, [$base, $offset]!", "$base = $base_wb",
603 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
605 def t2STRB_POST : T2Iidxldst<(outs GPR:$base_wb),
606 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
607 AddrModeT2_i8, IndexModePost,
608 "strb", " $src, [$base], $offset", "$base = $base_wb",
610 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
613 // FIXME: ldrd / strd pre / post variants
615 //===----------------------------------------------------------------------===//
616 // Load / store multiple Instructions.
620 def t2LDM : T2XI<(outs),
621 (ins addrmode4:$addr, pred:$p, reglist:$dst1, variable_ops),
622 "ldm${addr:submode}${p}.w $addr, $dst1", []>;
625 def t2STM : T2XI<(outs),
626 (ins addrmode4:$addr, pred:$p, reglist:$src1, variable_ops),
627 "stm${addr:submode}${p}.w $addr, $src1", []>;
629 //===----------------------------------------------------------------------===//
630 // Move Instructions.
633 let neverHasSideEffects = 1 in
634 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src),
635 "mov", ".w $dst, $src", []>;
637 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
638 def t2MOVi : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src),
639 "mov", ".w $dst, $src",
640 [(set GPR:$dst, t2_so_imm:$src)]>;
642 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
643 def t2MOVi16 : T2I<(outs GPR:$dst), (ins i32imm:$src),
644 "movw", " $dst, $src",
645 [(set GPR:$dst, imm0_65535:$src)]>;
647 // FIXME: Also available in ARM mode.
648 let Constraints = "$src = $dst" in
649 def t2MOVTi16 : T2sI<(outs GPR:$dst), (ins GPR:$src, i32imm:$imm),
650 "movt", " $dst, $imm",
652 (or (and GPR:$src, 0xffff), t2_lo16AllZero:$imm))]>;
654 //===----------------------------------------------------------------------===//
655 // Extend Instructions.
660 defm t2SXTB : T2I_unary_rrot<"sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
661 defm t2SXTH : T2I_unary_rrot<"sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
663 defm t2SXTAB : T2I_bin_rrot<"sxtab",
664 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
665 defm t2SXTAH : T2I_bin_rrot<"sxtah",
666 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
668 // TODO: SXT(A){B|H}16
672 let AddedComplexity = 16 in {
673 defm t2UXTB : T2I_unary_rrot<"uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
674 defm t2UXTH : T2I_unary_rrot<"uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
675 defm t2UXTB16 : T2I_unary_rrot<"uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
677 def : T2Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
678 (t2UXTB16r_rot GPR:$Src, 24)>;
679 def : T2Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
680 (t2UXTB16r_rot GPR:$Src, 8)>;
682 defm t2UXTAB : T2I_bin_rrot<"uxtab",
683 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
684 defm t2UXTAH : T2I_bin_rrot<"uxtah",
685 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
688 //===----------------------------------------------------------------------===//
689 // Arithmetic Instructions.
692 defm t2ADD : T2I_bin_ii12rs<"add", BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
693 defm t2SUB : T2I_bin_ii12rs<"sub", BinOpFrag<(sub node:$LHS, node:$RHS)>>;
695 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
696 defm t2ADDS : T2I_bin_s_irs <"add", BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
697 defm t2SUBS : T2I_bin_s_irs <"sub", BinOpFrag<(subc node:$LHS, node:$RHS)>>;
699 defm t2ADC : T2I_adde_sube_irs<"adc",BinOpFrag<(adde node:$LHS, node:$RHS)>,1>;
700 defm t2SBC : T2I_adde_sube_irs<"sbc",BinOpFrag<(sube node:$LHS, node:$RHS)>>;
703 defm t2RSB : T2I_rbin_is <"rsb", BinOpFrag<(sub node:$LHS, node:$RHS)>>;
704 defm t2RSBS : T2I_rbin_s_is <"rsb", BinOpFrag<(subc node:$LHS, node:$RHS)>>;
706 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
707 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
708 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
709 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
710 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
713 //===----------------------------------------------------------------------===//
714 // Shift and rotate Instructions.
717 defm t2LSL : T2I_sh_ir<"lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
718 defm t2LSR : T2I_sh_ir<"lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
719 defm t2ASR : T2I_sh_ir<"asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
720 defm t2ROR : T2I_sh_ir<"ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
722 def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src),
723 "rrx", ".w $dst, $src",
724 [(set GPR:$dst, (ARMrrx GPR:$src))]>;
726 let Defs = [CPSR] in {
727 def t2MOVsrl_flag : T2XI<(outs GPR:$dst), (ins GPR:$src),
728 "lsrs.w $dst, $src, #1",
729 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>;
730 def t2MOVsra_flag : T2XI<(outs GPR:$dst), (ins GPR:$src),
731 "asrs.w $dst, $src, #1",
732 [(set GPR:$dst, (ARMsra_flag GPR:$src))]>;
735 //===----------------------------------------------------------------------===//
736 // Bitwise Instructions.
739 defm t2AND : T2I_bin_w_irs<"and", BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
740 defm t2ORR : T2I_bin_w_irs<"orr", BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
741 defm t2EOR : T2I_bin_w_irs<"eor", BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
743 defm t2BIC : T2I_bin_w_irs<"bic", BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
745 let Constraints = "$src = $dst" in
746 def t2BFC : T2I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm),
747 "bfc", " $dst, $imm",
748 [(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]>;
750 // FIXME: A8.6.18 BFI - Bitfield insert (Encoding T1)
752 defm t2ORN : T2I_bin_irs<"orn", BinOpFrag<(or node:$LHS, (not node:$RHS))>>;
754 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
755 let AddedComplexity = 1 in
756 defm t2MVN : T2I_un_irs <"mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
759 def : T2Pat<(and GPR:$src, t2_so_imm_not:$imm),
760 (t2BICri GPR:$src, t2_so_imm_not:$imm)>;
762 def : T2Pat<(or GPR:$src, t2_so_imm_not:$imm),
763 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>;
765 def : T2Pat<(t2_so_imm_not:$src),
766 (t2MVNi t2_so_imm_not:$src)>;
768 //===----------------------------------------------------------------------===//
769 // Multiply Instructions.
771 let isCommutable = 1 in
772 def t2MUL: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
773 "mul", " $dst, $a, $b",
774 [(set GPR:$dst, (mul GPR:$a, GPR:$b))]>;
776 def t2MLA: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
777 "mla", " $dst, $a, $b, $c",
778 [(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]>;
780 def t2MLS: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
781 "mls", " $dst, $a, $b, $c",
782 [(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]>;
784 // Extra precision multiplies with low / high results
785 let neverHasSideEffects = 1 in {
786 let isCommutable = 1 in {
787 def t2SMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b),
788 "smull", " $ldst, $hdst, $a, $b", []>;
790 def t2UMULL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b),
791 "umull", " $ldst, $hdst, $a, $b", []>;
794 // Multiply + accumulate
795 def t2SMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b),
796 "smlal", " $ldst, $hdst, $a, $b", []>;
798 def t2UMLAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b),
799 "umlal", " $ldst, $hdst, $a, $b", []>;
801 def t2UMAAL : T2I<(outs GPR:$ldst, GPR:$hdst), (ins GPR:$a, GPR:$b),
802 "umaal", " $ldst, $hdst, $a, $b", []>;
803 } // neverHasSideEffects
805 // Most significant word multiply
806 def t2SMMUL : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
807 "smmul", " $dst, $a, $b",
808 [(set GPR:$dst, (mulhs GPR:$a, GPR:$b))]>;
810 def t2SMMLA : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
811 "smmla", " $dst, $a, $b, $c",
812 [(set GPR:$dst, (add (mulhs GPR:$a, GPR:$b), GPR:$c))]>;
815 def t2SMMLS : T2I <(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
816 "smmls", " $dst, $a, $b, $c",
817 [(set GPR:$dst, (sub GPR:$c, (mulhs GPR:$a, GPR:$b)))]>;
819 multiclass T2I_smul<string opc, PatFrag opnode> {
820 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
821 !strconcat(opc, "bb"), " $dst, $a, $b",
822 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
823 (sext_inreg GPR:$b, i16)))]>;
825 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
826 !strconcat(opc, "bt"), " $dst, $a, $b",
827 [(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
828 (sra GPR:$b, (i32 16))))]>;
830 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
831 !strconcat(opc, "tb"), " $dst, $a, $b",
832 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
833 (sext_inreg GPR:$b, i16)))]>;
835 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
836 !strconcat(opc, "tt"), " $dst, $a, $b",
837 [(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
838 (sra GPR:$b, (i32 16))))]>;
840 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
841 !strconcat(opc, "wb"), " $dst, $a, $b",
842 [(set GPR:$dst, (sra (opnode GPR:$a,
843 (sext_inreg GPR:$b, i16)), (i32 16)))]>;
845 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
846 !strconcat(opc, "wt"), " $dst, $a, $b",
847 [(set GPR:$dst, (sra (opnode GPR:$a,
848 (sra GPR:$b, (i32 16))), (i32 16)))]>;
852 multiclass T2I_smla<string opc, PatFrag opnode> {
853 def BB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
854 !strconcat(opc, "bb"), " $dst, $a, $b, $acc",
855 [(set GPR:$dst, (add GPR:$acc,
856 (opnode (sext_inreg GPR:$a, i16),
857 (sext_inreg GPR:$b, i16))))]>;
859 def BT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
860 !strconcat(opc, "bt"), " $dst, $a, $b, $acc",
861 [(set GPR:$dst, (add GPR:$acc, (opnode (sext_inreg GPR:$a, i16),
862 (sra GPR:$b, (i32 16)))))]>;
864 def TB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
865 !strconcat(opc, "tb"), " $dst, $a, $b, $acc",
866 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
867 (sext_inreg GPR:$b, i16))))]>;
869 def TT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
870 !strconcat(opc, "tt"), " $dst, $a, $b, $acc",
871 [(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
872 (sra GPR:$b, (i32 16)))))]>;
874 def WB : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
875 !strconcat(opc, "wb"), " $dst, $a, $b, $acc",
876 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
877 (sext_inreg GPR:$b, i16)), (i32 16))))]>;
879 def WT : T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
880 !strconcat(opc, "wt"), " $dst, $a, $b, $acc",
881 [(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
882 (sra GPR:$b, (i32 16))), (i32 16))))]>;
885 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
886 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
888 // TODO: Halfword multiple accumulate long: SMLAL<x><y>
889 // TODO: Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
892 //===----------------------------------------------------------------------===//
893 // Misc. Arithmetic Instructions.
896 def t2CLZ : T2I<(outs GPR:$dst), (ins GPR:$src),
897 "clz", " $dst, $src",
898 [(set GPR:$dst, (ctlz GPR:$src))]>;
900 def t2REV : T2I<(outs GPR:$dst), (ins GPR:$src),
901 "rev", ".w $dst, $src",
902 [(set GPR:$dst, (bswap GPR:$src))]>;
904 def t2REV16 : T2I<(outs GPR:$dst), (ins GPR:$src),
905 "rev16", ".w $dst, $src",
907 (or (and (srl GPR:$src, (i32 8)), 0xFF),
908 (or (and (shl GPR:$src, (i32 8)), 0xFF00),
909 (or (and (srl GPR:$src, (i32 8)), 0xFF0000),
910 (and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
912 def t2REVSH : T2I<(outs GPR:$dst), (ins GPR:$src),
913 "revsh", ".w $dst, $src",
916 (or (srl (and GPR:$src, 0xFFFF), (i32 8)),
917 (shl GPR:$src, (i32 8))), i16))]>;
919 def t2PKHBT : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
920 "pkhbt", " $dst, $src1, $src2, LSL $shamt",
921 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
922 (and (shl GPR:$src2, (i32 imm:$shamt)),
925 // Alternate cases for PKHBT where identities eliminate some nodes.
926 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
927 (t2PKHBT GPR:$src1, GPR:$src2, 0)>;
928 def : T2Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
929 (t2PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>;
931 def t2PKHTB : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
932 "pkhtb", " $dst, $src1, $src2, ASR $shamt",
933 [(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
934 (and (sra GPR:$src2, imm16_31:$shamt),
937 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
938 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
939 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
940 (t2PKHTB GPR:$src1, GPR:$src2, 16)>;
941 def : T2Pat<(or (and GPR:$src1, 0xFFFF0000),
942 (and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
943 (t2PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>;
945 //===----------------------------------------------------------------------===//
946 // Comparison Instructions...
949 defm t2CMP : T2I_cmp_is<"cmp",
950 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
951 defm t2CMPz : T2I_cmp_is<"cmp",
952 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
954 defm t2CMN : T2I_cmp_is<"cmn",
955 BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
956 defm t2CMNz : T2I_cmp_is<"cmn",
957 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
959 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
960 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
962 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
963 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
965 defm t2TST : T2I_cmp_is<"tst",
966 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
967 defm t2TEQ : T2I_cmp_is<"teq",
968 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
970 // A8.6.27 CBNZ, CBZ - Compare and branch on (non)zero.
971 // Short range conditional branch. Looks awesome for loops. Need to figure
972 // out how to use this one.
976 // FIXME: should be able to write a pattern for ARMcmov, but can't use
977 // a two-value operand where a dag node expects two operands. :(
978 def t2MOVCCr : T2I<(outs GPR:$dst), (ins GPR:$false, GPR:$true),
979 "mov", " $dst, $true",
980 [/*(set GPR:$dst, (ARMcmov GPR:$false, GPR:$true, imm:$cc, CCR:$ccr))*/]>,
981 RegConstraint<"$false = $dst">;
983 def t2MOVCCs : T2I<(outs GPR:$dst), (ins GPR:$false, t2_so_reg:$true),
984 "mov", " $dst, $true",
985 [/*(set GPR:$dst, (ARMcmov GPR:$false, t2_so_reg:$true, imm:$cc, CCR:$ccr))*/]>,
986 RegConstraint<"$false = $dst">;
988 def t2MOVCCi : T2I<(outs GPR:$dst), (ins GPR:$false, t2_so_imm:$true),
989 "mov", " $dst, $true",
990 [/*(set GPR:$dst, (ARMcmov GPR:$false, t2_so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
991 RegConstraint<"$false = $dst">;
993 //===----------------------------------------------------------------------===//
997 // __aeabi_read_tp preserves the registers r1-r3.
999 Defs = [R0, R12, LR, CPSR] in {
1000 def t2TPsoft : T2XI<(outs), (ins),
1001 "bl __aeabi_read_tp",
1002 [(set R0, ARMthread_pointer)]>;
1005 //===----------------------------------------------------------------------===//
1006 // Control-Flow Instructions
1009 // FIXME: remove when we have a way to marking a MI with these properties.
1010 // FIXME: $dst1 should be a def. But the extra ops must be in the end of the
1012 // FIXME: Should pc be an implicit operand like PICADD, etc?
1013 let isReturn = 1, isTerminator = 1, mayLoad = 1 in
1014 def t2LDM_RET : T2XI<(outs),
1015 (ins addrmode4:$addr, pred:$p, reglist:$dst1, variable_ops),
1016 "ldm${addr:submode}${p} $addr, $dst1",
1019 // On non-Darwin platforms R9 is callee-saved.
1021 Defs = [R0, R1, R2, R3, R12, LR,
1022 D0, D1, D2, D3, D4, D5, D6, D7,
1023 D16, D17, D18, D19, D20, D21, D22, D23,
1024 D24, D25, D26, D27, D28, D29, D30, D31, CPSR] in {
1025 def t2BL : T2XI<(outs), (ins i32imm:$func, variable_ops),
1027 [(ARMcall tglobaladdr:$func)]>,
1028 Requires<[IsThumb2, IsNotDarwin]>;
1030 def t2BLX : T2XI<(outs), (ins GPR:$func, variable_ops),
1032 [(ARMcall GPR:$func)]>,
1033 Requires<[IsThumb2, IsNotDarwin]>;
1036 // On Darwin R9 is call-clobbered.
1038 Defs = [R0, R1, R2, R3, R9, R12, LR,
1039 D0, D1, D2, D3, D4, D5, D6, D7,
1040 D16, D17, D18, D19, D20, D21, D22, D23,
1041 D24, D25, D26, D27, D28, D29, D30, D31, CPSR] in {
1042 def t2BLr9 : T2XI<(outs), (ins i32imm:$func, variable_ops),
1044 [(ARMcall tglobaladdr:$func)]>,
1045 Requires<[IsThumb2, IsDarwin]>;
1047 def t2BLXr9 : T2XI<(outs), (ins GPR:$func, variable_ops),
1049 [(ARMcall GPR:$func)]>,
1050 Requires<[IsThumb2, IsDarwin]>;
1053 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
1054 let isPredicable = 1 in
1055 def t2B : T2XI<(outs), (ins brtarget:$target),
1059 let isNotDuplicable = 1, isIndirectBranch = 1 in {
1062 (ins GPR:$target, GPR:$index, jt2block_operand:$jt, i32imm:$id),
1063 "mov pc, $target\n$jt",
1064 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
1068 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
1069 "tbb", " $index\n$jt", []>;
1073 (ins tb_addrmode:$index, jt2block_operand:$jt, i32imm:$id),
1074 "tbh", " $index\n$jt", []>;
1075 } // isNotDuplicable, isIndirectBranch
1077 } // isBranch, isTerminator, isBarrier
1079 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
1080 // a two-value operand where a dag node expects two operands. :(
1081 let isBranch = 1, isTerminator = 1 in
1082 def t2Bcc : T2I<(outs), (ins brtarget:$target),
1084 [/*(ARMbrcond bb:$target, imm:$cc)*/]>;
1088 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
1089 AddrModeNone, Size2Bytes,
1090 "it$mask $cc", "", []>;
1092 //===----------------------------------------------------------------------===//
1093 // Non-Instruction Patterns
1096 // ConstantPool, GlobalAddress, and JumpTable
1097 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>;
1098 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
1099 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
1100 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
1102 // Large immediate handling.
1104 def : T2Pat<(i32 imm:$src),
1105 (t2MOVTi16 (t2MOVi16 (t2_lo16 imm:$src)), (t2_hi16 imm:$src))>;
1108 def : T2Pat<(ARMcall texternalsym:$func), (t2BL texternalsym:$func)>,
1109 Requires<[IsThumb2, IsNotDarwin]>;
1110 def : T2Pat<(ARMcall texternalsym:$func), (t2BLr9 texternalsym:$func)>,
1111 Requires<[IsThumb2, IsDarwin]>;