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 // Shifted operands. No register controlled shifts for Thumb2.
15 // Note: We do not support rrx shifted operands yet.
16 def t2_so_reg : Operand<i32>, // reg imm
17 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
19 let PrintMethod = "printT2SOOperand";
20 let MIOperandInfo = (ops GPR, i32imm);
23 // t2_so_imm_XFORM - Return a t2_so_imm value packed into the format
24 // described for t2_so_imm def below.
25 def t2_so_imm_XFORM : SDNodeXForm<imm, [{
26 return CurDAG->getTargetConstant(
27 ARM_AM::getT2SOImmVal(N->getZExtValue()), MVT::i32);
30 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
31 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
32 return CurDAG->getTargetConstant(
33 ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())), MVT::i32);
36 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
37 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
38 return CurDAG->getTargetConstant(
39 ARM_AM::getT2SOImmVal(-((int)N->getZExtValue())), MVT::i32);
42 // t2_so_imm - Match a 32-bit immediate operand, which is an
43 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
44 // immediate splatted into multiple bytes of the word. t2_so_imm values are
45 // represented in the imm field in the same 12-bit form that they are encoded
46 // into t2_so_imm instructions: the 8-bit immediate is the least significant bits
47 // [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
48 def t2_so_imm : Operand<i32>,
50 return ARM_AM::getT2SOImmVal((uint32_t)N->getZExtValue()) != -1;
51 }], t2_so_imm_XFORM> {
52 let PrintMethod = "printT2SOImmOperand";
55 // t2_so_imm_not - Match an immediate that is a complement
57 def t2_so_imm_not : Operand<i32>,
59 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
60 }], t2_so_imm_not_XFORM> {
61 let PrintMethod = "printT2SOImmOperand";
64 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
65 def t2_so_imm_neg : Operand<i32>,
67 return ARM_AM::getT2SOImmVal(-((int)N->getZExtValue())) != -1;
68 }], t2_so_imm_neg_XFORM> {
69 let PrintMethod = "printT2SOImmOperand";
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 /// bf_inv_mask_imm predicate - An AND mask to clear an arbitrary width bitfield
94 def bf_inv_mask_imm : Operand<i32>,
96 uint32_t v = (uint32_t)N->getZExtValue();
99 // naive checker. should do better, but simple is best for now since it's
100 // more likely to be correct.
101 while (v & 1) v >>= 1; // shift off the leading 1's
104 while (!(v & 1)) v >>=1; // shift off the mask
105 while (v & 1) v >>= 1; // shift off the trailing 1's
107 // if this is a mask for clearing a bitfield, what's left should be zero.
110 let PrintMethod = "printBitfieldInvMaskImmOperand";
113 /// Split a 32-bit immediate into two 16 bit parts.
114 def t2_lo16 : SDNodeXForm<imm, [{
115 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() & 0xffff,
119 def t2_hi16 : SDNodeXForm<imm, [{
120 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
123 def t2_lo16AllZero : PatLeaf<(i32 imm), [{
124 // Returns true if all low 16-bits are 0.
125 return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
129 // Define Thumb2 specific addressing modes.
131 // t2addrmode_imm12 := reg + imm12
132 def t2addrmode_imm12 : Operand<i32>,
133 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
134 let PrintMethod = "printT2AddrModeImm12Operand";
135 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
138 // t2addrmode_imm8 := reg - imm8
139 def t2addrmode_imm8 : Operand<i32>,
140 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
141 let PrintMethod = "printT2AddrModeImm8Operand";
142 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
145 def t2am_imm8_offset : Operand<i32>,
146 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset", []>{
147 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
150 // t2addrmode_imm8s4 := reg + (imm8 << 2)
151 def t2addrmode_imm8s4 : Operand<i32>,
152 ComplexPattern<i32, 2, "SelectT2AddrModeImm8s4", []> {
153 let PrintMethod = "printT2AddrModeImm8Operand";
154 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
157 // t2addrmode_so_reg := reg + reg << imm2
158 def t2addrmode_so_reg : Operand<i32>,
159 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
160 let PrintMethod = "printT2AddrModeSoRegOperand";
161 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
165 //===----------------------------------------------------------------------===//
166 // Multiclass helpers...
169 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
170 /// unary operation that produces a value. These are predicable and can be
171 /// changed to modify CPSR.
172 multiclass T2I_un_irs<string opc, PatFrag opnode, bit Cheap = 0, bit ReMat = 0>{
174 def i : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src),
176 [(set GPR:$dst, (opnode t2_so_imm:$src))]> {
177 let isAsCheapAsAMove = Cheap;
178 let isReMaterializable = ReMat;
181 def r : T2I<(outs GPR:$dst), (ins GPR:$src),
183 [(set GPR:$dst, (opnode GPR:$src))]>;
185 def s : T2I<(outs GPR:$dst), (ins t2_so_reg:$src),
187 [(set GPR:$dst, (opnode t2_so_reg:$src))]>;
190 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
191 // binary operation that produces a value. These are predicable and can be
192 /// changed to modify CPSR.
193 multiclass T2I_bin_irs<string opc, PatFrag opnode, bit Commutable = 0> {
195 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
196 opc, " $dst, $lhs, $rhs",
197 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
199 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
200 opc, " $dst, $lhs, $rhs",
201 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
202 let isCommutable = Commutable;
205 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
206 opc, " $dst, $lhs, $rhs",
207 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
210 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
211 /// reversed. It doesn't define the 'rr' form since it's handled by its
212 /// T2I_bin_irs counterpart.
213 multiclass T2I_rbin_is<string opc, PatFrag opnode> {
215 def ri : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs),
216 opc, " $dst, $rhs, $lhs",
217 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>;
219 def rs : T2I<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs),
220 opc, " $dst, $rhs, $lhs",
221 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>;
224 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
225 /// instruction modifies the CPSR register.
226 let Defs = [CPSR] in {
227 multiclass T2I_bin_s_irs<string opc, PatFrag opnode, bit Commutable = 0> {
229 def ri : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
230 !strconcat(opc, "s"), " $dst, $lhs, $rhs",
231 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
233 def rr : T2I<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
234 !strconcat(opc, "s"), " $dst, $lhs, $rhs",
235 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
236 let isCommutable = Commutable;
239 def rs : T2I<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
240 !strconcat(opc, "s"), " $dst, $lhs, $rhs",
241 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
245 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
246 /// patterns for a binary operation that produces a value.
247 multiclass T2I_bin_ii12rs<string opc, PatFrag opnode, bit Commutable = 0> {
249 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
250 opc, " $dst, $lhs, $rhs",
251 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>;
253 def ri12 : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs),
254 !strconcat(opc, "w"), " $dst, $lhs, $rhs",
255 [(set GPR:$dst, (opnode GPR:$lhs, imm0_4095:$rhs))]>;
257 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
258 opc, " $dst, $lhs, $rhs",
259 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]> {
260 let isCommutable = Commutable;
263 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
264 opc, " $dst, $lhs, $rhs",
265 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>;
268 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
269 /// binary operation that produces a value and use and define the carry bit.
270 /// It's not predicable.
271 let Uses = [CPSR] in {
272 multiclass T2I_adde_sube_irs<string opc, PatFrag opnode, bit Commutable = 0> {
274 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
275 opc, " $dst, $lhs, $rhs",
276 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
277 Requires<[IsThumb2, CarryDefIsUnused]>;
279 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
280 opc, " $dst, $lhs, $rhs",
281 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
282 Requires<[IsThumb2, CarryDefIsUnused]> {
283 let isCommutable = Commutable;
286 def rs : T2sI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
287 opc, " $dst, $lhs, $rhs",
288 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
289 Requires<[IsThumb2, CarryDefIsUnused]>;
290 // Carry setting variants
292 def Sri : T2XI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_imm:$rhs),
293 !strconcat(opc, "s $dst, $lhs, $rhs"),
294 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_imm:$rhs))]>,
295 Requires<[IsThumb2, CarryDefIsUsed]> {
299 def Srr : T2XI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
300 !strconcat(opc, "s $dst, $lhs, $rhs"),
301 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>,
302 Requires<[IsThumb2, CarryDefIsUsed]> {
304 let isCommutable = Commutable;
307 def Srs : T2XI<(outs GPR:$dst), (ins GPR:$lhs, t2_so_reg:$rhs),
308 !strconcat(opc, "s $dst, $lhs, $rhs"),
309 [(set GPR:$dst, (opnode GPR:$lhs, t2_so_reg:$rhs))]>,
310 Requires<[IsThumb2, CarryDefIsUsed]> {
316 /// T2I_rsc_is - Same as T2I_adde_sube_irs except the order of operands are
317 /// reversed. It doesn't define the 'rr' form since it's handled by its
318 /// T2I_adde_sube_irs counterpart.
319 let Defs = [CPSR], Uses = [CPSR] in {
320 multiclass T2I_rsc_is<string opc, PatFrag opnode> {
322 def ri : T2sI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs),
323 opc, " $dst, $rhs, $lhs",
324 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>,
325 Requires<[IsThumb2, CarryDefIsUnused]>;
327 def rs : T2sI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs),
328 opc, " $dst, $rhs, $lhs",
329 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>,
330 Requires<[IsThumb2, CarryDefIsUnused]>;
332 def Sri : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs),
333 !strconcat(opc, "s $dst, $rhs, $lhs"),
334 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>,
335 Requires<[IsThumb2, CarryDefIsUsed]> {
339 def Srs : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs),
340 !strconcat(opc, "s $dst, $rhs, $lhs"),
341 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>,
342 Requires<[IsThumb2, CarryDefIsUsed]> {
348 /// T2I_rbin_s_is - Same as T2I_bin_s_irs except the order of operands are
349 /// reversed. It doesn't define the 'rr' form since it's handled by its
350 /// T2I_bin_s_irs counterpart.
351 let Defs = [CPSR] in {
352 multiclass T2I_rbin_s_is<string opc, PatFrag opnode> {
354 def ri : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_imm:$lhs, cc_out:$s),
355 !strconcat(opc, "${s} $dst, $rhs, $lhs"),
356 [(set GPR:$dst, (opnode t2_so_imm:$lhs, GPR:$rhs))]>;
358 def rs : T2XI<(outs GPR:$dst), (ins GPR:$rhs, t2_so_reg:$lhs, cc_out:$s),
359 !strconcat(opc, "${s} $dst, $rhs, $lhs"),
360 [(set GPR:$dst, (opnode t2_so_reg:$lhs, GPR:$rhs))]>;
364 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
365 // rotate operation that produces a value.
366 multiclass T2I_sh_ir<string opc, PatFrag opnode> {
368 def ri : T2sI<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs),
369 opc, " $dst, $lhs, $rhs",
370 [(set GPR:$dst, (opnode GPR:$lhs, imm1_31:$rhs))]>;
372 def rr : T2sI<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
373 opc, " $dst, $lhs, $rhs",
374 [(set GPR:$dst, (opnode GPR:$lhs, GPR:$rhs))]>;
377 /// T21_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
378 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
379 /// a explicit result, only implicitly set CPSR.
380 let Uses = [CPSR] in {
381 multiclass T2I_cmp_is<string opc, PatFrag opnode> {
383 def ri : T2I<(outs), (ins GPR:$lhs, t2_so_imm:$rhs),
385 [(opnode GPR:$lhs, t2_so_imm:$rhs)]>;
387 def rr : T2I<(outs), (ins GPR:$lhs, GPR:$rhs),
389 [(opnode GPR:$lhs, GPR:$rhs)]>;
391 def rs : T2I<(outs), (ins GPR:$lhs, t2_so_reg:$rhs),
393 [(opnode GPR:$lhs, t2_so_reg:$rhs)]>;
397 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
398 multiclass T2I_ld<string opc, PatFrag opnode> {
399 def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr),
401 [(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]>;
402 def i8 : T2Ii8 <(outs GPR:$dst), (ins t2addrmode_imm8:$addr),
404 [(set GPR:$dst, (opnode t2addrmode_imm8:$addr))]>;
405 def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr),
407 [(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]>;
408 def pci : T2Ipc <(outs GPR:$dst), (ins i32imm:$addr),
410 [(set GPR:$dst, (opnode (ARMWrapper tconstpool:$addr)))]>;
413 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
414 multiclass T2I_st<string opc, PatFrag opnode> {
415 def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr),
417 [(opnode GPR:$src, t2addrmode_imm12:$addr)]>;
418 def i8 : T2Ii8 <(outs), (ins GPR:$src, t2addrmode_imm8:$addr),
420 [(opnode GPR:$src, t2addrmode_imm8:$addr)]>;
421 def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr),
423 [(opnode GPR:$src, t2addrmode_so_reg:$addr)]>;
426 /// T2I_picld - Defines the PIC load pattern.
427 class T2I_picld<string opc, PatFrag opnode> :
428 T2I<(outs GPR:$dst), (ins addrmodepc:$addr),
429 !strconcat("${addr:label}:\n\t", opc), " $dst, $addr",
430 [(set GPR:$dst, (opnode addrmodepc:$addr))]>;
432 /// T2I_picst - Defines the PIC store pattern.
433 class T2I_picst<string opc, PatFrag opnode> :
434 T2I<(outs), (ins GPR:$src, addrmodepc:$addr),
435 !strconcat("${addr:label}:\n\t", opc), " $src, $addr",
436 [(opnode GPR:$src, addrmodepc:$addr)]>;
439 /// T2I_unary_rrot - A unary operation with two forms: one whose operand is a
440 /// register and one whose operand is a register rotated by 8/16/24.
441 multiclass T2I_unary_rrot<string opc, PatFrag opnode> {
442 def r : T2I<(outs GPR:$dst), (ins GPR:$Src),
444 [(set GPR:$dst, (opnode GPR:$Src))]>;
445 def r_rot : T2I<(outs GPR:$dst), (ins GPR:$Src, i32imm:$rot),
446 opc, " $dst, $Src, ror $rot",
447 [(set GPR:$dst, (opnode (rotr GPR:$Src, rot_imm:$rot)))]>;
450 /// T2I_bin_rrot - A binary operation with two forms: one whose operand is a
451 /// register and one whose operand is a register rotated by 8/16/24.
452 multiclass T2I_bin_rrot<string opc, PatFrag opnode> {
453 def rr : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS),
454 opc, " $dst, $LHS, $RHS",
455 [(set GPR:$dst, (opnode GPR:$LHS, GPR:$RHS))]>;
456 def rr_rot : T2I<(outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
457 opc, " $dst, $LHS, $RHS, ror $rot",
458 [(set GPR:$dst, (opnode GPR:$LHS,
459 (rotr GPR:$RHS, rot_imm:$rot)))]>;
462 //===----------------------------------------------------------------------===//
464 //===----------------------------------------------------------------------===//
466 //===----------------------------------------------------------------------===//
467 // Miscellaneous Instructions.
470 let isNotDuplicable = 1 in
471 def t2PICADD : T2XI<(outs tGPR:$dst), (ins tGPR:$lhs, pclabel:$cp),
472 "$cp:\n\tadd $dst, pc",
473 [(set tGPR:$dst, (ARMpic_add tGPR:$lhs, imm:$cp))]>;
476 // LEApcrel - Load a pc-relative address into a register without offending the
478 def t2LEApcrel : T2XI<(outs GPR:$dst), (ins i32imm:$label, pred:$p),
479 !strconcat(!strconcat(".set PCRELV${:uid}, ($label-(",
480 "${:private}PCRELL${:uid}+8))\n"),
481 !strconcat("${:private}PCRELL${:uid}:\n\t",
482 "add$p $dst, pc, #PCRELV${:uid}")),
485 def t2LEApcrelJT : T2XI<(outs GPR:$dst),
486 (ins i32imm:$label, i32imm:$id, pred:$p),
487 !strconcat(!strconcat(".set PCRELV${:uid}, (${label}_${id:no_hash}-(",
488 "${:private}PCRELL${:uid}+8))\n"),
489 !strconcat("${:private}PCRELL${:uid}:\n\t",
490 "add$p $dst, pc, #PCRELV${:uid}")),
493 // ADD rd, sp, #so_imm
494 def t2ADDrSPi : T2XI<(outs GPR:$dst), (ins GPR:$sp, t2_so_imm:$imm),
495 "add $dst, $sp, $imm",
498 // ADD rd, sp, #imm12
499 def t2ADDrSPi12 : T2XI<(outs GPR:$dst), (ins GPR:$sp, i32imm:$imm),
500 "addw $dst, $sp, $imm",
503 def t2ADDrSPs : T2XI<(outs GPR:$dst), (ins GPR:$sp, t2_so_reg:$rhs),
504 "addw $dst, $sp, $rhs",
508 //===----------------------------------------------------------------------===//
509 // Load / store Instructions.
513 let canFoldAsLoad = 1 in
514 defm t2LDR : T2I_ld<"ldr", UnOpFrag<(load node:$Src)>>;
516 // Loads with zero extension
517 defm t2LDRH : T2I_ld<"ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
518 defm t2LDRB : T2I_ld<"ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
520 // Loads with sign extension
521 defm t2LDRSH : T2I_ld<"ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
522 defm t2LDRSB : T2I_ld<"ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
526 def t2LDRDi8 : T2Ii8s4<(outs GPR:$dst), (ins t2addrmode_imm8s4:$addr),
527 "ldrd", " $dst, $addr", []>;
528 def t2LDRDpci : T2Ii8s4<(outs GPR:$dst), (ins i32imm:$addr),
529 "ldrd", " $dst, $addr", []>;
532 // zextload i1 -> zextload i8
533 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
534 (t2LDRBi12 t2addrmode_imm12:$addr)>;
535 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
536 (t2LDRBi8 t2addrmode_imm8:$addr)>;
537 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
538 (t2LDRBs t2addrmode_so_reg:$addr)>;
539 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
540 (t2LDRBpci tconstpool:$addr)>;
542 // extload -> zextload
543 // FIXME: Reduce the number of patterns by legalizing extload to zextload
545 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
546 (t2LDRBi12 t2addrmode_imm12:$addr)>;
547 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
548 (t2LDRBi8 t2addrmode_imm8:$addr)>;
549 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
550 (t2LDRBs t2addrmode_so_reg:$addr)>;
551 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
552 (t2LDRBpci tconstpool:$addr)>;
554 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
555 (t2LDRBi12 t2addrmode_imm12:$addr)>;
556 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
557 (t2LDRBi8 t2addrmode_imm8:$addr)>;
558 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
559 (t2LDRBs t2addrmode_so_reg:$addr)>;
560 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
561 (t2LDRBpci tconstpool:$addr)>;
563 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
564 (t2LDRHi12 t2addrmode_imm12:$addr)>;
565 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
566 (t2LDRHi8 t2addrmode_imm8:$addr)>;
567 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
568 (t2LDRHs t2addrmode_so_reg:$addr)>;
569 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
570 (t2LDRHpci tconstpool:$addr)>;
574 def t2LDR_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
575 (ins t2addrmode_imm8:$addr),
576 AddrModeT2_i8, IndexModePre,
577 "ldr", " $dst, $addr!", "$addr.base = $base_wb",
580 def t2LDR_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
581 (ins GPR:$base, t2am_imm8_offset:$offset),
582 AddrModeT2_i8, IndexModePost,
583 "ldr", " $dst, [$base], $offset", "$base = $base_wb",
586 def t2LDRB_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
587 (ins t2addrmode_imm8:$addr),
588 AddrModeT2_i8, IndexModePre,
589 "ldrb", " $dst, $addr!", "$addr.base = $base_wb",
591 def t2LDRB_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
592 (ins GPR:$base, t2am_imm8_offset:$offset),
593 AddrModeT2_i8, IndexModePost,
594 "ldrb", " $dst, [$base], $offset", "$base = $base_wb",
597 def t2LDRH_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
598 (ins t2addrmode_imm8:$addr),
599 AddrModeT2_i8, IndexModePre,
600 "ldrh", " $dst, $addr!", "$addr.base = $base_wb",
602 def t2LDRH_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
603 (ins GPR:$base, t2am_imm8_offset:$offset),
604 AddrModeT2_i8, IndexModePost,
605 "ldrh", " $dst, [$base], $offset", "$base = $base_wb",
608 def t2LDRSB_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
609 (ins t2addrmode_imm8:$addr),
610 AddrModeT2_i8, IndexModePre,
611 "ldrsb", " $dst, $addr!", "$addr.base = $base_wb",
613 def t2LDRSB_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
614 (ins GPR:$base, t2am_imm8_offset:$offset),
615 AddrModeT2_i8, IndexModePost,
616 "ldrsb", " $dst, [$base], $offset", "$base = $base_wb",
619 def t2LDRSH_PRE : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
620 (ins t2addrmode_imm8:$addr),
621 AddrModeT2_i8, IndexModePre,
622 "ldrsh", " $dst, $addr!", "$addr.base = $base_wb",
624 def t2LDRSH_POST : T2Iidxldst<(outs GPR:$dst, GPR:$base_wb),
625 (ins GPR:$base, t2am_imm8_offset:$offset),
626 AddrModeT2_i8, IndexModePost,
627 "ldrsh", " $dst, [$base], $offset", "$base = $base_wb",
632 defm t2STR : T2I_st<"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
633 defm t2STRB : T2I_st<"strb", BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
634 defm t2STRH : T2I_st<"strh", BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
638 def t2STRDi8 : T2Ii8s4<(outs), (ins GPR:$src, t2addrmode_imm8s4:$addr),
639 "strd", " $src, $addr", []>;
642 def t2STR_PRE : T2Iidxldst<(outs GPR:$base_wb),
643 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
644 AddrModeT2_i8, IndexModePre,
645 "str", " $src, [$base, $offset]!", "$base = $base_wb",
647 (pre_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
649 def t2STR_POST : T2Iidxldst<(outs GPR:$base_wb),
650 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
651 AddrModeT2_i8, IndexModePost,
652 "str", " $src, [$base], $offset", "$base = $base_wb",
654 (post_store GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
656 def t2STRH_PRE : T2Iidxldst<(outs GPR:$base_wb),
657 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
658 AddrModeT2_i8, IndexModePre,
659 "strh", " $src, [$base, $offset]!", "$base = $base_wb",
661 (pre_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
663 def t2STRH_POST : T2Iidxldst<(outs GPR:$base_wb),
664 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
665 AddrModeT2_i8, IndexModePost,
666 "strh", " $src, [$base], $offset", "$base = $base_wb",
668 (post_truncsti16 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
670 def t2STRB_PRE : T2Iidxldst<(outs GPR:$base_wb),
671 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
672 AddrModeT2_i8, IndexModePre,
673 "strb", " $src, [$base, $offset]!", "$base = $base_wb",
675 (pre_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
677 def t2STRB_POST : T2Iidxldst<(outs GPR:$base_wb),
678 (ins GPR:$src, GPR:$base, t2am_imm8_offset:$offset),
679 AddrModeT2_i8, IndexModePost,
680 "strb", " $src, [$base], $offset", "$base = $base_wb",
682 (post_truncsti8 GPR:$src, GPR:$base, t2am_imm8_offset:$offset))]>;
685 // Address computation and loads and stores in PIC mode.
686 let isNotDuplicable = 1, AddedComplexity = 10 in {
687 let canFoldAsLoad = 1 in
688 def t2PICLDR : T2I_picld<"ldr", UnOpFrag<(load node:$Src)>>;
690 def t2PICLDRH : T2I_picld<"ldrh", UnOpFrag<(zextloadi16 node:$Src)>>;
691 def t2PICLDRB : T2I_picld<"ldrb", UnOpFrag<(zextloadi8 node:$Src)>>;
692 def t2PICLDRSH : T2I_picld<"ldrsh", UnOpFrag<(sextloadi16 node:$Src)>>;
693 def t2PICLDRSB : T2I_picld<"ldrsb", UnOpFrag<(sextloadi8 node:$Src)>>;
695 def t2PICSTR : T2I_picst<"str", BinOpFrag<(store node:$LHS, node:$RHS)>>;
696 def t2PICSTRH : T2I_picst<"strh", BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
697 def t2PICSTRB : T2I_picst<"strb", BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
698 } // isNotDuplicable = 1, AddedComplexity = 10
701 //===----------------------------------------------------------------------===//
702 // Load / store multiple Instructions.
706 def t2LDM : T2XI<(outs),
707 (ins addrmode4:$addr, pred:$p, reglist:$dst1, variable_ops),
708 "ldm${p}${addr:submode} $addr, $dst1", []>;
711 def t2STM : T2XI<(outs),
712 (ins addrmode4:$addr, pred:$p, reglist:$src1, variable_ops),
713 "stm${p}${addr:submode} $addr, $src1", []>;
715 //===----------------------------------------------------------------------===//
716 // Move Instructions.
719 let neverHasSideEffects = 1 in
720 def t2MOVr : T2sI<(outs GPR:$dst), (ins GPR:$src),
721 "mov", " $dst, $src", []>;
723 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
724 def t2MOVi : T2sI<(outs GPR:$dst), (ins t2_so_imm:$src),
725 "mov", " $dst, $src",
726 [(set GPR:$dst, t2_so_imm:$src)]>;
728 let isReMaterializable = 1, isAsCheapAsAMove = 1 in
729 def t2MOVi16 : T2I<(outs GPR:$dst), (ins i32imm:$src),
730 "movw", " $dst, $src",
731 [(set GPR:$dst, imm0_65535:$src)]>;
733 // FIXME: Also available in ARM mode.
734 let Constraints = "$src = $dst" in
735 def t2MOVTi16 : T2sI<(outs GPR:$dst), (ins GPR:$src, i32imm:$imm),
736 "movt", " $dst, $imm",
738 (or (and GPR:$src, 0xffff), t2_lo16AllZero:$imm))]>;
740 //===----------------------------------------------------------------------===//
741 // Extend Instructions.
746 defm t2SXTB : T2I_unary_rrot<"sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
747 defm t2SXTH : T2I_unary_rrot<"sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
749 defm t2SXTAB : T2I_bin_rrot<"sxtab",
750 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
751 defm t2SXTAH : T2I_bin_rrot<"sxtah",
752 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
754 // TODO: SXT(A){B|H}16
758 let AddedComplexity = 16 in {
759 defm t2UXTB : T2I_unary_rrot<"uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
760 defm t2UXTH : T2I_unary_rrot<"uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
761 defm t2UXTB16 : T2I_unary_rrot<"uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
763 def : T2Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
764 (t2UXTB16r_rot GPR:$Src, 24)>;
765 def : T2Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
766 (t2UXTB16r_rot GPR:$Src, 8)>;
768 defm t2UXTAB : T2I_bin_rrot<"uxtab",
769 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
770 defm t2UXTAH : T2I_bin_rrot<"uxtah",
771 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
774 //===----------------------------------------------------------------------===//
775 // Arithmetic Instructions.
778 defm t2ADD : T2I_bin_ii12rs<"add", BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
779 defm t2SUB : T2I_bin_ii12rs<"sub", BinOpFrag<(sub node:$LHS, node:$RHS)>>;
781 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
782 defm t2ADDS : T2I_bin_s_irs <"add", BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
783 defm t2SUBS : T2I_bin_s_irs <"sub", BinOpFrag<(subc node:$LHS, node:$RHS)>>;
785 defm t2ADC : T2I_adde_sube_irs<"adc",BinOpFrag<(adde node:$LHS, node:$RHS)>,1>;
786 defm t2SBC : T2I_adde_sube_irs<"sbc",BinOpFrag<(sube node:$LHS, node:$RHS)>>;
789 defm t2RSB : T2I_rbin_is <"rsb", BinOpFrag<(sub node:$LHS, node:$RHS)>>;
790 defm t2RSBS : T2I_rbin_s_is <"rsb", BinOpFrag<(subc node:$LHS, node:$RHS)>>;
791 defm t2RSC : T2I_rsc_is <"rsc", BinOpFrag<(sube node:$LHS, node:$RHS)>>;
793 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
794 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
795 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
796 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
797 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
800 //===----------------------------------------------------------------------===//
801 // Shift and rotate Instructions.
804 defm t2LSL : T2I_sh_ir<"lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
805 defm t2LSR : T2I_sh_ir<"lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
806 defm t2ASR : T2I_sh_ir<"asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
807 defm t2ROR : T2I_sh_ir<"ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
809 def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src),
810 "mov", " $dst, $src, rrx",
811 [(set GPR:$dst, (ARMrrx GPR:$src))]>;
813 //===----------------------------------------------------------------------===//
814 // Bitwise Instructions.
817 defm t2AND : T2I_bin_irs<"and", BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
818 defm t2ORR : T2I_bin_irs<"orr", BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
819 defm t2EOR : T2I_bin_irs<"eor", BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
821 defm t2BIC : T2I_bin_irs<"bic", BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
823 def : T2Pat<(and GPR:$src, t2_so_imm_not:$imm),
824 (t2BICri GPR:$src, t2_so_imm_not:$imm)>;
826 defm t2ORN : T2I_bin_irs<"orn", BinOpFrag<(or node:$LHS, (not node:$RHS))>>;
828 def : T2Pat<(or GPR:$src, t2_so_imm_not:$imm),
829 (t2ORNri GPR:$src, t2_so_imm_not:$imm)>;
831 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
832 let AddedComplexity = 1 in
833 defm t2MVN : T2I_un_irs <"mvn", UnOpFrag<(not node:$Src)>, 1, 1>;
835 def : T2Pat<(t2_so_imm_not:$src),
836 (t2MVNi t2_so_imm_not:$src)>;
838 // A8.6.17 BFC - Bitfield clear
839 // FIXME: Also available in ARM mode.
840 let Constraints = "$src = $dst" in
841 def t2BFC : T2I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm),
842 "bfc", " $dst, $imm",
843 [(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]>;
845 // FIXME: A8.6.18 BFI - Bitfield insert (Encoding T1)
847 //===----------------------------------------------------------------------===//
848 // Multiply Instructions.
850 let isCommutable = 1 in
851 def t2MUL: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b),
852 "mul", " $dst, $a, $b",
853 [(set GPR:$dst, (mul GPR:$a, GPR:$b))]>;
855 def t2MLA: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
856 "mla", " $dst, $a, $b, $c",
857 [(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]>;
859 def t2MLS: T2I<(outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
860 "mls", " $dst, $a, $b, $c",
861 [(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]>;
863 // FIXME: SMULL, etc.
865 //===----------------------------------------------------------------------===//
866 // Misc. Arithmetic Instructions.
869 def t2CLZ : T2I<(outs GPR:$dst), (ins GPR:$src),
870 "clz", " $dst, $src",
871 [(set GPR:$dst, (ctlz GPR:$src))]>;
873 def t2REV : T2I<(outs GPR:$dst), (ins GPR:$src),
874 "rev", " $dst, $src",
875 [(set GPR:$dst, (bswap GPR:$src))]>;
877 def t2REV16 : T2I<(outs GPR:$dst), (ins GPR:$src),
878 "rev16", " $dst, $src",
880 (or (and (srl GPR:$src, (i32 8)), 0xFF),
881 (or (and (shl GPR:$src, (i32 8)), 0xFF00),
882 (or (and (srl GPR:$src, (i32 8)), 0xFF0000),
883 (and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
888 def t2REVSH : T2I<(outs GPR:$dst), (ins GPR:$src),
889 "revsh", " $dst, $src",
892 (or (srl (and GPR:$src, 0xFFFF), (i32 8)),
893 (shl GPR:$src, (i32 8))), i16))]>;
897 //===----------------------------------------------------------------------===//
898 // Comparison Instructions...
901 defm t2CMP : T2I_cmp_is<"cmp",
902 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
903 defm t2CMPz : T2I_cmp_is<"cmp",
904 BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
906 defm t2CMN : T2I_cmp_is<"cmn",
907 BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
908 defm t2CMNz : T2I_cmp_is<"cmn",
909 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
911 def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
912 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
914 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
915 (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
917 defm t2TST : T2I_cmp_is<"tst",
918 BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>>;
919 defm t2TEQ : T2I_cmp_is<"teq",
920 BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>>;
922 // A8.6.27 CBNZ, CBZ - Compare and branch on (non)zero.
923 // Short range conditional branch. Looks awesome for loops. Need to figure
924 // out how to use this one.
926 // FIXME: Conditional moves
928 //===----------------------------------------------------------------------===//
929 // Control-Flow Instructions
932 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
933 let isPredicable = 1 in
934 def t2B : T2XI<(outs), (ins brtarget:$target),
938 let isNotDuplicable = 1, isIndirectBranch = 1 in {
939 def t2BR_JTr : T2JTI<(outs), (ins GPR:$target, jtblock_operand:$jt, i32imm:$id),
940 "mov pc, $target \n$jt",
941 [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>;
945 (ins t2addrmode_so_reg:$target, jtblock_operand:$jt, i32imm:$id),
946 "ldr pc, $target \n$jt",
947 [(ARMbrjt (i32 (load t2addrmode_so_reg:$target)), tjumptable:$jt,
952 (ins GPR:$target, GPR:$idx, jtblock_operand:$jt, i32imm:$id),
953 "add pc, $target, $idx \n$jt",
954 [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt, imm:$id)]>;
955 } // isNotDuplicate, isIndirectBranch
956 } // isBranch, isTerminator, isBarrier
958 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
959 // a two-value operand where a dag node expects two operands. :(
960 let isBranch = 1, isTerminator = 1 in
961 def t2Bcc : T2I<(outs), (ins brtarget:$target),
963 [/*(ARMbrcond bb:$target, imm:$cc)*/]>;
965 //===----------------------------------------------------------------------===//
966 // Non-Instruction Patterns
969 // ConstantPool, GlobalAddress, and JumpTable
970 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>;
971 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
972 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
973 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
975 // Large immediate handling.
977 def : T2Pat<(i32 imm:$src),
978 (t2MOVTi16 (t2MOVi16 (t2_lo16 imm:$src)), (t2_hi16 imm:$src))>;