1 //===- ARMInstrThumb.td - Thumb 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 Thumb instruction set.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // Thumb specific DAG Nodes.
18 def ARMtcall : SDNode<"ARMISD::tCALL", SDT_ARMcall,
19 [SDNPHasChain, SDNPOptInFlag, SDNPOutFlag,
22 def imm_neg_XFORM : SDNodeXForm<imm, [{
23 return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
25 def imm_comp_XFORM : SDNodeXForm<imm, [{
26 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
30 /// imm0_7 predicate - True if the 32-bit immediate is in the range [0,7].
31 def imm0_7 : PatLeaf<(i32 imm), [{
32 return (uint32_t)N->getZExtValue() < 8;
34 def imm0_7_neg : PatLeaf<(i32 imm), [{
35 return (uint32_t)-N->getZExtValue() < 8;
38 def imm0_255 : PatLeaf<(i32 imm), [{
39 return (uint32_t)N->getZExtValue() < 256;
41 def imm0_255_comp : PatLeaf<(i32 imm), [{
42 return ~((uint32_t)N->getZExtValue()) < 256;
45 def imm8_255 : PatLeaf<(i32 imm), [{
46 return (uint32_t)N->getZExtValue() >= 8 && (uint32_t)N->getZExtValue() < 256;
48 def imm8_255_neg : PatLeaf<(i32 imm), [{
49 unsigned Val = -N->getZExtValue();
50 return Val >= 8 && Val < 256;
53 // Break imm's up into two pieces: an immediate + a left shift.
54 // This uses thumb_immshifted to match and thumb_immshifted_val and
55 // thumb_immshifted_shamt to get the val/shift pieces.
56 def thumb_immshifted : PatLeaf<(imm), [{
57 return ARM_AM::isThumbImmShiftedVal((unsigned)N->getZExtValue());
60 def thumb_immshifted_val : SDNodeXForm<imm, [{
61 unsigned V = ARM_AM::getThumbImmNonShiftedVal((unsigned)N->getZExtValue());
62 return CurDAG->getTargetConstant(V, MVT::i32);
65 def thumb_immshifted_shamt : SDNodeXForm<imm, [{
66 unsigned V = ARM_AM::getThumbImmValShift((unsigned)N->getZExtValue());
67 return CurDAG->getTargetConstant(V, MVT::i32);
70 // Scaled 4 immediate.
71 def t_imm_s4 : Operand<i32> {
72 let PrintMethod = "printThumbS4ImmOperand";
75 // Define Thumb specific addressing modes.
77 // t_addrmode_rr := reg + reg
79 def t_addrmode_rr : Operand<i32>,
80 ComplexPattern<i32, 2, "SelectThumbAddrModeRR", []> {
81 let PrintMethod = "printThumbAddrModeRROperand";
82 let MIOperandInfo = (ops tGPR:$base, tGPR:$offsreg);
85 // t_addrmode_s4 := reg + reg
88 def t_addrmode_s4 : Operand<i32>,
89 ComplexPattern<i32, 3, "SelectThumbAddrModeS4", []> {
90 let PrintMethod = "printThumbAddrModeS4Operand";
91 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
94 // t_addrmode_s2 := reg + reg
97 def t_addrmode_s2 : Operand<i32>,
98 ComplexPattern<i32, 3, "SelectThumbAddrModeS2", []> {
99 let PrintMethod = "printThumbAddrModeS2Operand";
100 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
103 // t_addrmode_s1 := reg + reg
106 def t_addrmode_s1 : Operand<i32>,
107 ComplexPattern<i32, 3, "SelectThumbAddrModeS1", []> {
108 let PrintMethod = "printThumbAddrModeS1Operand";
109 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
112 // t_addrmode_sp := sp + imm8 * 4
114 def t_addrmode_sp : Operand<i32>,
115 ComplexPattern<i32, 2, "SelectThumbAddrModeSP", []> {
116 let PrintMethod = "printThumbAddrModeSPOperand";
117 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
120 //===----------------------------------------------------------------------===//
121 // Miscellaneous Instructions.
124 // FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
125 // from removing one half of the matched pairs. That breaks PEI, which assumes
126 // these will always be in pairs, and asserts if it finds otherwise. Better way?
127 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
128 def tADJCALLSTACKUP :
129 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2), NoItinerary,
130 "${:comment} tADJCALLSTACKUP $amt1",
131 [(ARMcallseq_end imm:$amt1, imm:$amt2)]>, Requires<[IsThumb1Only]>;
133 def tADJCALLSTACKDOWN :
134 PseudoInst<(outs), (ins i32imm:$amt), NoItinerary,
135 "${:comment} tADJCALLSTACKDOWN $amt",
136 [(ARMcallseq_start imm:$amt)]>, Requires<[IsThumb1Only]>;
139 def tNOP : T1pI<(outs), (ins), NoItinerary, "nop", "",
140 [/* For disassembly only; pattern left blank */]>,
141 T1Encoding<0b101111> {
142 let Inst{9-8} = 0b11;
143 let Inst{7-0} = 0b00000000;
146 def tYIELD : T1pI<(outs), (ins), NoItinerary, "yield", "",
147 [/* For disassembly only; pattern left blank */]>,
148 T1Encoding<0b101111> {
149 let Inst{9-8} = 0b11;
150 let Inst{7-0} = 0b00010000;
153 def tWFE : T1pI<(outs), (ins), NoItinerary, "wfe", "",
154 [/* For disassembly only; pattern left blank */]>,
155 T1Encoding<0b101111> {
156 let Inst{9-8} = 0b11;
157 let Inst{7-0} = 0b00100000;
160 def tWFI : T1pI<(outs), (ins), NoItinerary, "wfi", "",
161 [/* For disassembly only; pattern left blank */]>,
162 T1Encoding<0b101111> {
163 let Inst{9-8} = 0b11;
164 let Inst{7-0} = 0b00110000;
167 def tSEV : T1pI<(outs), (ins), NoItinerary, "sev", "",
168 [/* For disassembly only; pattern left blank */]>,
169 T1Encoding<0b101111> {
170 let Inst{9-8} = 0b11;
171 let Inst{7-0} = 0b01000000;
174 def tSETENDBE : T1I<(outs), (ins), NoItinerary, "setend\tbe",
175 [/* For disassembly only; pattern left blank */]>,
176 T1Encoding<0b101101> {
177 let Inst{9-5} = 0b10010;
181 def tSETENDLE : T1I<(outs), (ins), NoItinerary, "setend\tle",
182 [/* For disassembly only; pattern left blank */]>,
183 T1Encoding<0b101101> {
184 let Inst{9-5} = 0b10010;
188 // The i32imm operand $val can be used by a debugger to store more information
189 // about the breakpoint.
190 def tBKPT : T1I<(outs), (ins i32imm:$val), NoItinerary, "bkpt\t$val",
191 [/* For disassembly only; pattern left blank */]>,
192 T1Encoding<0b101111> {
193 let Inst{9-8} = 0b10;
196 // Change Processor State is a system instruction -- for disassembly only.
197 // The singleton $opt operand contains the following information:
198 // opt{4-0} = mode ==> don't care
199 // opt{5} = changemode ==> 0 (false for 16-bit Thumb instr)
200 // opt{8-6} = AIF from Inst{2-0}
201 // opt{10-9} = 1:imod from Inst{4} with 0b10 as enable and 0b11 as disable
203 // The opt{4-0} and opt{5} sub-fields are to accommodate 32-bit Thumb and ARM
204 // CPS which has more options.
205 def tCPS : T1I<(outs), (ins cps_opt:$opt), NoItinerary, "cps$opt",
206 [/* For disassembly only; pattern left blank */]>,
209 // For both thumb1 and thumb2.
210 let isNotDuplicable = 1 in
211 def tPICADD : TIt<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp), IIC_iALUr,
212 "\n$cp:\n\tadd\t$dst, pc",
213 [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>,
214 T1Special<{0,0,?,?}> {
215 let Inst{6-3} = 0b1111; // A8.6.6 Rm = pc
219 def tADDrPCi : T1I<(outs tGPR:$dst), (ins t_imm_s4:$rhs), IIC_iALUi,
220 "add\t$dst, pc, $rhs", []>,
221 T1Encoding<{1,0,1,0,0,?}>; // A6.2 & A8.6.10
224 // This is rematerializable, which is particularly useful for taking the
225 // address of locals.
226 let isReMaterializable = 1 in {
227 def tADDrSPi : T1I<(outs tGPR:$dst), (ins GPR:$sp, t_imm_s4:$rhs), IIC_iALUi,
228 "add\t$dst, $sp, $rhs", []>,
229 T1Encoding<{1,0,1,0,1,?}>; // A6.2 & A8.6.8
233 def tADDspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
234 "add\t$dst, $rhs", []>,
235 T1Misc<{0,0,0,0,0,?,?}>; // A6.2.5 & A8.6.8
238 def tSUBspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
239 "sub\t$dst, $rhs", []>,
240 T1Misc<{0,0,0,0,1,?,?}>; // A6.2.5 & A8.6.215
243 def tADDrSP : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
244 "add\t$dst, $rhs", []>,
245 T1Special<{0,0,?,?}> {
246 let Inst{6-3} = 0b1101; // A8.6.9 Encoding T1
250 def tADDspr : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
251 "add\t$dst, $rhs", []>,
252 T1Special<{0,0,?,?}> {
253 // A8.6.9 Encoding T2
255 let Inst{2-0} = 0b101;
258 //===----------------------------------------------------------------------===//
259 // Control Flow Instructions.
262 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
263 def tBX_RET : TI<(outs), (ins), IIC_Br, "bx\tlr", [(ARMretflag)]>,
264 T1Special<{1,1,0,?}> { // A6.2.3 & A8.6.25
265 let Inst{6-3} = 0b1110; // Rm = lr
267 // Alternative return instruction used by vararg functions.
268 def tBX_RET_vararg : TI<(outs), (ins tGPR:$target), IIC_Br, "bx\t$target",[]>,
269 T1Special<{1,1,0,?}>; // A6.2.3 & A8.6.25
273 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
274 def tBRIND : TI<(outs), (ins GPR:$dst), IIC_Br, "mov\tpc, $dst",
276 T1Special<{1,0,1,?}> {
277 // <Rd> = Inst{7:2-0} = pc
278 let Inst{2-0} = 0b111;
282 // FIXME: remove when we have a way to marking a MI with these properties.
283 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
284 hasExtraDefRegAllocReq = 1 in
285 def tPOP_RET : T1I<(outs), (ins pred:$p, reglist:$dsts, variable_ops), IIC_Br,
286 "pop${p}\t$dsts", []>,
287 T1Misc<{1,1,0,?,?,?,?}>;
290 Defs = [R0, R1, R2, R3, R12, LR,
291 D0, D1, D2, D3, D4, D5, D6, D7,
292 D16, D17, D18, D19, D20, D21, D22, D23,
293 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
294 // Also used for Thumb2
295 def tBL : TIx2<0b11110, 0b11, 1,
296 (outs), (ins i32imm:$func, variable_ops), IIC_Br,
298 [(ARMtcall tglobaladdr:$func)]>,
299 Requires<[IsThumb, IsNotDarwin]>;
301 // ARMv5T and above, also used for Thumb2
302 def tBLXi : TIx2<0b11110, 0b11, 0,
303 (outs), (ins i32imm:$func, variable_ops), IIC_Br,
305 [(ARMcall tglobaladdr:$func)]>,
306 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
308 // Also used for Thumb2
309 def tBLXr : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
311 [(ARMtcall GPR:$func)]>,
312 Requires<[IsThumb, HasV5T, IsNotDarwin]>,
313 T1Special<{1,1,1,?}>; // A6.2.3 & A8.6.24;
316 def tBX : TIx2<{?,?,?,?,?}, {?,?}, ?,
317 (outs), (ins tGPR:$func, variable_ops), IIC_Br,
318 "mov\tlr, pc\n\tbx\t$func",
319 [(ARMcall_nolink tGPR:$func)]>,
320 Requires<[IsThumb1Only, IsNotDarwin]>;
323 // On Darwin R9 is call-clobbered.
325 Defs = [R0, R1, R2, R3, R9, R12, LR,
326 D0, D1, D2, D3, D4, D5, D6, D7,
327 D16, D17, D18, D19, D20, D21, D22, D23,
328 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
329 // Also used for Thumb2
330 def tBLr9 : TIx2<0b11110, 0b11, 1,
331 (outs), (ins i32imm:$func, variable_ops), IIC_Br,
333 [(ARMtcall tglobaladdr:$func)]>,
334 Requires<[IsThumb, IsDarwin]>;
336 // ARMv5T and above, also used for Thumb2
337 def tBLXi_r9 : TIx2<0b11110, 0b11, 0,
338 (outs), (ins i32imm:$func, variable_ops), IIC_Br,
340 [(ARMcall tglobaladdr:$func)]>,
341 Requires<[IsThumb, HasV5T, IsDarwin]>;
343 // Also used for Thumb2
344 def tBLXr_r9 : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
346 [(ARMtcall GPR:$func)]>,
347 Requires<[IsThumb, HasV5T, IsDarwin]>,
348 T1Special<{1,1,1,?}>; // A6.2.3 & A8.6.24
351 def tBXr9 : TIx2<{?,?,?,?,?}, {?,?}, ?,
352 (outs), (ins tGPR:$func, variable_ops), IIC_Br,
353 "mov\tlr, pc\n\tbx\t$func",
354 [(ARMcall_nolink tGPR:$func)]>,
355 Requires<[IsThumb1Only, IsDarwin]>;
358 let isBranch = 1, isTerminator = 1 in {
359 let isBarrier = 1 in {
360 let isPredicable = 1 in
361 def tB : T1I<(outs), (ins brtarget:$target), IIC_Br,
362 "b\t$target", [(br bb:$target)]>,
363 T1Encoding<{1,1,1,0,0,?}>;
367 def tBfar : TIx2<0b11110, 0b11, 1, (outs), (ins brtarget:$target), IIC_Br,
368 "bl\t$target\t${:comment} far jump",[]>;
370 def tBR_JTr : T1JTI<(outs),
371 (ins tGPR:$target, jtblock_operand:$jt, i32imm:$id),
372 IIC_Br, "mov\tpc, $target\n\t.align\t2$jt",
373 [(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]>,
375 let Inst{15-7} = 0b010001101;
376 let Inst{2-0} = 0b111;
381 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
382 // a two-value operand where a dag node expects two operands. :(
383 let isBranch = 1, isTerminator = 1 in
384 def tBcc : T1I<(outs), (ins brtarget:$target, pred:$cc), IIC_Br,
386 [/*(ARMbrcond bb:$target, imm:$cc)*/]>,
387 T1Encoding<{1,1,0,1,?,?}>;
389 // Compare and branch on zero / non-zero
390 let isBranch = 1, isTerminator = 1 in {
391 def tCBZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
392 "cbz\t$cmp, $target", []>,
393 T1Misc<{0,0,?,1,?,?,?}>;
395 def tCBNZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
396 "cbnz\t$cmp, $target", []>,
397 T1Misc<{1,0,?,1,?,?,?}>;
400 // A8.6.218 Supervisor Call (Software Interrupt) -- for disassembly only
401 // A8.6.16 B: Encoding T1
402 // If Inst{11-8} == 0b1111 then SEE SVC
404 def tSVC : T1pI<(outs), (ins i32imm:$svc), IIC_Br, "svc", "\t$svc", []>,
406 let Inst{15-12} = 0b1101;
407 let Inst{11-8} = 0b1111;
411 // A8.6.16 B: Encoding T1
412 // If Inst{11-8} == 0b1110 then UNDEFINED
413 // FIXME: Temporary emitted as raw bytes until this pseudo-op will be added to
415 let isBarrier = 1, isTerminator = 1 in
416 def tTRAP : TI<(outs), (ins), IIC_Br,
417 ".short 0xdefe ${:comment} trap", [(trap)]>, Encoding16 {
418 let Inst{15-12} = 0b1101;
419 let Inst{11-8} = 0b1110;
422 //===----------------------------------------------------------------------===//
423 // Load Store Instructions.
426 let canFoldAsLoad = 1, isReMaterializable = 1 in
427 def tLDR : T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoadr,
428 "ldr", "\t$dst, $addr",
429 [(set tGPR:$dst, (load t_addrmode_s4:$addr))]>,
431 def tLDRi: T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoadr,
432 "ldr", "\t$dst, $addr",
436 def tLDRB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoadr,
437 "ldrb", "\t$dst, $addr",
438 [(set tGPR:$dst, (zextloadi8 t_addrmode_s1:$addr))]>,
440 def tLDRBi: T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoadr,
441 "ldrb", "\t$dst, $addr",
445 def tLDRH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoadr,
446 "ldrh", "\t$dst, $addr",
447 [(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>,
449 def tLDRHi: T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoadr,
450 "ldrh", "\t$dst, $addr",
454 let AddedComplexity = 10 in
455 def tLDRSB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
456 "ldrsb", "\t$dst, $addr",
457 [(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>,
460 let AddedComplexity = 10 in
461 def tLDRSH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
462 "ldrsh", "\t$dst, $addr",
463 [(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>,
466 let canFoldAsLoad = 1 in
467 def tLDRspi : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
468 "ldr", "\t$dst, $addr",
469 [(set tGPR:$dst, (load t_addrmode_sp:$addr))]>,
472 // Special instruction for restore. It cannot clobber condition register
473 // when it's expanded by eliminateCallFramePseudoInstr().
474 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1 in
475 def tRestore : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
476 "ldr", "\t$dst, $addr", []>,
480 // FIXME: Use ldr.n to work around a Darwin assembler bug.
481 let canFoldAsLoad = 1, isReMaterializable = 1 in
482 def tLDRpci : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
483 "ldr", ".n\t$dst, $addr",
484 [(set tGPR:$dst, (load (ARMWrapper tconstpool:$addr)))]>,
485 T1Encoding<{0,1,0,0,1,?}>; // A6.2 & A8.6.59
487 // Special LDR for loads from non-pc-relative constpools.
488 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
489 isReMaterializable = 1 in
490 def tLDRcp : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
491 "ldr", "\t$dst, $addr", []>,
494 def tSTR : T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStorer,
495 "str", "\t$src, $addr",
496 [(store tGPR:$src, t_addrmode_s4:$addr)]>,
498 def tSTRi: T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStorer,
499 "str", "\t$src, $addr",
503 def tSTRB : T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStorer,
504 "strb", "\t$src, $addr",
505 [(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>,
507 def tSTRBi: T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStorer,
508 "strb", "\t$src, $addr",
512 def tSTRH : T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStorer,
513 "strh", "\t$src, $addr",
514 [(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>,
516 def tSTRHi: T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStorer,
517 "strh", "\t$src, $addr",
521 def tSTRspi : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
522 "str", "\t$src, $addr",
523 [(store tGPR:$src, t_addrmode_sp:$addr)]>,
526 let mayStore = 1, neverHasSideEffects = 1 in {
527 // Special instruction for spill. It cannot clobber condition register
528 // when it's expanded by eliminateCallFramePseudoInstr().
529 def tSpill : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
530 "str", "\t$src, $addr", []>,
534 //===----------------------------------------------------------------------===//
535 // Load / store multiple Instructions.
538 // These require base address to be written back or one of the loaded regs.
539 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
540 def tLDM : T1I<(outs),
541 (ins addrmode4:$addr, pred:$p, reglist:$dsts, variable_ops),
543 "ldm${addr:submode}${p}\t$addr, $dsts", []>,
544 T1Encoding<{1,1,0,0,1,?}>; // A6.2 & A8.6.53
546 def tLDM_UPD : T1It<(outs tGPR:$wb),
547 (ins addrmode4:$addr, pred:$p, reglist:$dsts, variable_ops),
549 "ldm${addr:submode}${p}\t$addr!, $dsts",
550 "$addr.addr = $wb", []>,
551 T1Encoding<{1,1,0,0,1,?}>; // A6.2 & A8.6.53
552 } // mayLoad, neverHasSideEffects = 1, hasExtraDefRegAllocReq
554 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
555 def tSTM_UPD : T1It<(outs tGPR:$wb),
556 (ins addrmode4:$addr, pred:$p, reglist:$srcs, variable_ops),
558 "stm${addr:submode}${p}\t$addr!, $srcs",
559 "$addr.addr = $wb", []>,
560 T1Encoding<{1,1,0,0,0,?}>; // A6.2 & A8.6.189
562 let mayLoad = 1, Uses = [SP], Defs = [SP], hasExtraDefRegAllocReq = 1 in
563 def tPOP : T1I<(outs), (ins pred:$p, reglist:$dsts, variable_ops), IIC_Br,
564 "pop${p}\t$dsts", []>,
565 T1Misc<{1,1,0,?,?,?,?}>;
567 let mayStore = 1, Uses = [SP], Defs = [SP], hasExtraSrcRegAllocReq = 1 in
568 def tPUSH : T1I<(outs), (ins pred:$p, reglist:$srcs, variable_ops), IIC_Br,
569 "push${p}\t$srcs", []>,
570 T1Misc<{0,1,0,?,?,?,?}>;
572 //===----------------------------------------------------------------------===//
573 // Arithmetic Instructions.
576 // Add with carry register
577 let isCommutable = 1, Uses = [CPSR] in
578 def tADC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
579 "adc", "\t$dst, $rhs",
580 [(set tGPR:$dst, (adde tGPR:$lhs, tGPR:$rhs))]>,
581 T1DataProcessing<0b0101>;
584 def tADDi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
585 "add", "\t$dst, $lhs, $rhs",
586 [(set tGPR:$dst, (add tGPR:$lhs, imm0_7:$rhs))]>,
589 def tADDi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
590 "add", "\t$dst, $rhs",
591 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255:$rhs))]>,
592 T1General<{1,1,0,?,?}>;
595 let isCommutable = 1 in
596 def tADDrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
597 "add", "\t$dst, $lhs, $rhs",
598 [(set tGPR:$dst, (add tGPR:$lhs, tGPR:$rhs))]>,
601 let neverHasSideEffects = 1 in
602 def tADDhirr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
603 "add", "\t$dst, $rhs", []>,
604 T1Special<{0,0,?,?}>;
607 let isCommutable = 1 in
608 def tAND : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
609 "and", "\t$dst, $rhs",
610 [(set tGPR:$dst, (and tGPR:$lhs, tGPR:$rhs))]>,
611 T1DataProcessing<0b0000>;
614 def tASRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
615 "asr", "\t$dst, $lhs, $rhs",
616 [(set tGPR:$dst, (sra tGPR:$lhs, (i32 imm:$rhs)))]>,
617 T1General<{0,1,0,?,?}>;
620 def tASRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
621 "asr", "\t$dst, $rhs",
622 [(set tGPR:$dst, (sra tGPR:$lhs, tGPR:$rhs))]>,
623 T1DataProcessing<0b0100>;
626 def tBIC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
627 "bic", "\t$dst, $rhs",
628 [(set tGPR:$dst, (and tGPR:$lhs, (not tGPR:$rhs)))]>,
629 T1DataProcessing<0b1110>;
632 let Defs = [CPSR] in {
633 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
634 // Compare-to-zero still works out, just not the relationals
635 //def tCMN : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
636 // "cmn", "\t$lhs, $rhs",
637 // [(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>,
638 // T1DataProcessing<0b1011>;
639 def tCMNz : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
640 "cmn", "\t$lhs, $rhs",
641 [(ARMcmpZ tGPR:$lhs, (ineg tGPR:$rhs))]>,
642 T1DataProcessing<0b1011>;
646 let Defs = [CPSR] in {
647 def tCMPi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
648 "cmp", "\t$lhs, $rhs",
649 [(ARMcmp tGPR:$lhs, imm0_255:$rhs)]>,
650 T1General<{1,0,1,?,?}>;
651 def tCMPzi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
652 "cmp", "\t$lhs, $rhs",
653 [(ARMcmpZ tGPR:$lhs, imm0_255:$rhs)]>,
654 T1General<{1,0,1,?,?}>;
658 let Defs = [CPSR] in {
659 def tCMPr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
660 "cmp", "\t$lhs, $rhs",
661 [(ARMcmp tGPR:$lhs, tGPR:$rhs)]>,
662 T1DataProcessing<0b1010>;
663 def tCMPzr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
664 "cmp", "\t$lhs, $rhs",
665 [(ARMcmpZ tGPR:$lhs, tGPR:$rhs)]>,
666 T1DataProcessing<0b1010>;
668 def tCMPhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
669 "cmp", "\t$lhs, $rhs", []>,
670 T1Special<{0,1,?,?}>;
671 def tCMPzhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
672 "cmp", "\t$lhs, $rhs", []>,
673 T1Special<{0,1,?,?}>;
678 let isCommutable = 1 in
679 def tEOR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
680 "eor", "\t$dst, $rhs",
681 [(set tGPR:$dst, (xor tGPR:$lhs, tGPR:$rhs))]>,
682 T1DataProcessing<0b0001>;
685 def tLSLri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
686 "lsl", "\t$dst, $lhs, $rhs",
687 [(set tGPR:$dst, (shl tGPR:$lhs, (i32 imm:$rhs)))]>,
688 T1General<{0,0,0,?,?}>;
691 def tLSLrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
692 "lsl", "\t$dst, $rhs",
693 [(set tGPR:$dst, (shl tGPR:$lhs, tGPR:$rhs))]>,
694 T1DataProcessing<0b0010>;
697 def tLSRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
698 "lsr", "\t$dst, $lhs, $rhs",
699 [(set tGPR:$dst, (srl tGPR:$lhs, (i32 imm:$rhs)))]>,
700 T1General<{0,0,1,?,?}>;
703 def tLSRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
704 "lsr", "\t$dst, $rhs",
705 [(set tGPR:$dst, (srl tGPR:$lhs, tGPR:$rhs))]>,
706 T1DataProcessing<0b0011>;
709 def tMOVi8 : T1sI<(outs tGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
710 "mov", "\t$dst, $src",
711 [(set tGPR:$dst, imm0_255:$src)]>,
712 T1General<{1,0,0,?,?}>;
714 // TODO: A7-73: MOV(2) - mov setting flag.
717 let neverHasSideEffects = 1 in {
718 // FIXME: Make this predicable.
719 def tMOVr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
720 "mov\t$dst, $src", []>,
723 def tMOVSr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
724 "movs\t$dst, $src", []>, Encoding16 {
725 let Inst{15-6} = 0b0000000000;
728 // FIXME: Make these predicable.
729 def tMOVgpr2tgpr : T1I<(outs tGPR:$dst), (ins GPR:$src), IIC_iMOVr,
730 "mov\t$dst, $src", []>,
731 T1Special<{1,0,0,?}>;
732 def tMOVtgpr2gpr : T1I<(outs GPR:$dst), (ins tGPR:$src), IIC_iMOVr,
733 "mov\t$dst, $src", []>,
734 T1Special<{1,0,?,0}>;
735 def tMOVgpr2gpr : T1I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
736 "mov\t$dst, $src", []>,
737 T1Special<{1,0,?,?}>;
738 } // neverHasSideEffects
741 let isCommutable = 1 in
742 def tMUL : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMUL32,
743 "mul", "\t$dst, $rhs, $dst", /* A8.6.105 MUL Encoding T1 */
744 [(set tGPR:$dst, (mul tGPR:$lhs, tGPR:$rhs))]>,
745 T1DataProcessing<0b1101>;
747 // move inverse register
748 def tMVN : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
749 "mvn", "\t$dst, $src",
750 [(set tGPR:$dst, (not tGPR:$src))]>,
751 T1DataProcessing<0b1111>;
753 // bitwise or register
754 let isCommutable = 1 in
755 def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
756 "orr", "\t$dst, $rhs",
757 [(set tGPR:$dst, (or tGPR:$lhs, tGPR:$rhs))]>,
758 T1DataProcessing<0b1100>;
761 def tREV : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
762 "rev", "\t$dst, $src",
763 [(set tGPR:$dst, (bswap tGPR:$src))]>,
764 Requires<[IsThumb1Only, HasV6]>,
765 T1Misc<{1,0,1,0,0,0,?}>;
767 def tREV16 : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
768 "rev16", "\t$dst, $src",
770 (or (and (srl tGPR:$src, (i32 8)), 0xFF),
771 (or (and (shl tGPR:$src, (i32 8)), 0xFF00),
772 (or (and (srl tGPR:$src, (i32 8)), 0xFF0000),
773 (and (shl tGPR:$src, (i32 8)), 0xFF000000)))))]>,
774 Requires<[IsThumb1Only, HasV6]>,
775 T1Misc<{1,0,1,0,0,1,?}>;
777 def tREVSH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
778 "revsh", "\t$dst, $src",
781 (or (srl (and tGPR:$src, 0xFF00), (i32 8)),
782 (shl tGPR:$src, (i32 8))), i16))]>,
783 Requires<[IsThumb1Only, HasV6]>,
784 T1Misc<{1,0,1,0,1,1,?}>;
786 // rotate right register
787 def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
788 "ror", "\t$dst, $rhs",
789 [(set tGPR:$dst, (rotr tGPR:$lhs, tGPR:$rhs))]>,
790 T1DataProcessing<0b0111>;
793 def tRSB : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iALUi,
794 "rsb", "\t$dst, $src, #0",
795 [(set tGPR:$dst, (ineg tGPR:$src))]>,
796 T1DataProcessing<0b1001>;
798 // Subtract with carry register
800 def tSBC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
801 "sbc", "\t$dst, $rhs",
802 [(set tGPR:$dst, (sube tGPR:$lhs, tGPR:$rhs))]>,
803 T1DataProcessing<0b0110>;
805 // Subtract immediate
806 def tSUBi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
807 "sub", "\t$dst, $lhs, $rhs",
808 [(set tGPR:$dst, (add tGPR:$lhs, imm0_7_neg:$rhs))]>,
811 def tSUBi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
812 "sub", "\t$dst, $rhs",
813 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255_neg:$rhs))]>,
814 T1General<{1,1,1,?,?}>;
817 def tSUBrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
818 "sub", "\t$dst, $lhs, $rhs",
819 [(set tGPR:$dst, (sub tGPR:$lhs, tGPR:$rhs))]>,
822 // TODO: A7-96: STMIA - store multiple.
825 def tSXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
826 "sxtb", "\t$dst, $src",
827 [(set tGPR:$dst, (sext_inreg tGPR:$src, i8))]>,
828 Requires<[IsThumb1Only, HasV6]>,
829 T1Misc<{0,0,1,0,0,1,?}>;
832 def tSXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
833 "sxth", "\t$dst, $src",
834 [(set tGPR:$dst, (sext_inreg tGPR:$src, i16))]>,
835 Requires<[IsThumb1Only, HasV6]>,
836 T1Misc<{0,0,1,0,0,0,?}>;
839 let isCommutable = 1, Defs = [CPSR] in
840 def tTST : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
841 "tst", "\t$lhs, $rhs",
842 [(ARMcmpZ (and tGPR:$lhs, tGPR:$rhs), 0)]>,
843 T1DataProcessing<0b1000>;
846 def tUXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
847 "uxtb", "\t$dst, $src",
848 [(set tGPR:$dst, (and tGPR:$src, 0xFF))]>,
849 Requires<[IsThumb1Only, HasV6]>,
850 T1Misc<{0,0,1,0,1,1,?}>;
853 def tUXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
854 "uxth", "\t$dst, $src",
855 [(set tGPR:$dst, (and tGPR:$src, 0xFFFF))]>,
856 Requires<[IsThumb1Only, HasV6]>,
857 T1Misc<{0,0,1,0,1,0,?}>;
860 // Conditional move tMOVCCr - Used to implement the Thumb SELECT_CC operation.
861 // Expanded after instruction selection into a branch sequence.
862 let usesCustomInserter = 1 in // Expanded after instruction selection.
864 PseudoInst<(outs tGPR:$dst), (ins tGPR:$false, tGPR:$true, pred:$cc),
865 NoItinerary, "${:comment} tMOVCCr $cc",
866 [/*(set tGPR:$dst, (ARMcmov tGPR:$false, tGPR:$true, imm:$cc))*/]>;
869 // 16-bit movcc in IT blocks for Thumb2.
870 let neverHasSideEffects = 1 in {
871 def tMOVCCr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iCMOVr,
872 "mov", "\t$dst, $rhs", []>,
873 T1Special<{1,0,?,?}>;
875 def tMOVCCi : T1pIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMOVi,
876 "mov", "\t$dst, $rhs", []>,
877 T1General<{1,0,0,?,?}>;
878 } // neverHasSideEffects
880 // tLEApcrel - Load a pc-relative address into a register without offending the
882 let neverHasSideEffects = 1 in {
883 let isReMaterializable = 1 in
884 def tLEApcrel : T1I<(outs tGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
885 "adr$p\t$dst, #$label", []>,
886 T1Encoding<{1,0,1,0,0,?}>; // A6.2 & A8.6.10
888 } // neverHasSideEffects
889 def tLEApcrelJT : T1I<(outs tGPR:$dst),
890 (ins i32imm:$label, nohash_imm:$id, pred:$p),
891 IIC_iALUi, "adr$p\t$dst, #${label}_${id}", []>,
892 T1Encoding<{1,0,1,0,0,?}>; // A6.2 & A8.6.10
894 //===----------------------------------------------------------------------===//
898 // __aeabi_read_tp preserves the registers r1-r3.
901 def tTPsoft : TIx2<0b11110, 0b11, 1, (outs), (ins), IIC_Br,
902 "bl\t__aeabi_read_tp",
903 [(set R0, ARMthread_pointer)]>;
906 // SJLJ Exception handling intrinsics
907 // eh_sjlj_setjmp() is an instruction sequence to store the return
908 // address and save #0 in R0 for the non-longjmp case.
909 // Since by its nature we may be coming from some other function to get
910 // here, and we're using the stack frame for the containing function to
911 // save/restore registers, we can't keep anything live in regs across
912 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
913 // when we get here from a longjmp(). We force everthing out of registers
914 // except for our own input by listing the relevant registers in Defs. By
915 // doing so, we also cause the prologue/epilogue code to actively preserve
916 // all of the callee-saved resgisters, which is exactly what we want.
917 // $val is a scratch register for our use.
919 [ R0, R1, R2, R3, R4, R5, R6, R7, R12 ], hasSideEffects = 1,
921 def tInt_eh_sjlj_setjmp : ThumbXI<(outs),(ins tGPR:$src, tGPR:$val),
922 AddrModeNone, SizeSpecial, NoItinerary,
923 "mov\t$val, pc\t${:comment} begin eh.setjmp\n\t"
925 "str\t$val, [$src, #4]\n\t"
928 "movs\tr0, #1\t${:comment} end eh.setjmp\n\t"
930 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>;
933 // FIXME: Non-Darwin version(s)
934 let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
935 Defs = [ R7, LR, SP ] in {
936 def tInt_eh_sjlj_longjmp : XI<(outs), (ins GPR:$src, GPR:$scratch),
937 AddrModeNone, SizeSpecial, IndexModeNone,
939 "ldr\t$scratch, [$src, #8]\n\t"
940 "mov\tsp, $scratch\n\t"
941 "ldr\t$scratch, [$src, #4]\n\t"
942 "ldr\tr7, [$src]\n\t"
944 [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
945 Requires<[IsThumb, IsDarwin]>;
948 //===----------------------------------------------------------------------===//
949 // Non-Instruction Patterns
953 def : T1Pat<(addc tGPR:$lhs, imm0_7:$rhs),
954 (tADDi3 tGPR:$lhs, imm0_7:$rhs)>;
955 def : T1Pat<(addc tGPR:$lhs, imm8_255:$rhs),
956 (tADDi8 tGPR:$lhs, imm8_255:$rhs)>;
957 def : T1Pat<(addc tGPR:$lhs, tGPR:$rhs),
958 (tADDrr tGPR:$lhs, tGPR:$rhs)>;
960 // Subtract with carry
961 def : T1Pat<(addc tGPR:$lhs, imm0_7_neg:$rhs),
962 (tSUBi3 tGPR:$lhs, imm0_7_neg:$rhs)>;
963 def : T1Pat<(addc tGPR:$lhs, imm8_255_neg:$rhs),
964 (tSUBi8 tGPR:$lhs, imm8_255_neg:$rhs)>;
965 def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
966 (tSUBrr tGPR:$lhs, tGPR:$rhs)>;
968 // ConstantPool, GlobalAddress
969 def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
970 def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
973 def : T1Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
974 (tLEApcrelJT tjumptable:$dst, imm:$id)>;
977 def : T1Pat<(ARMtcall texternalsym:$func), (tBL texternalsym:$func)>,
978 Requires<[IsThumb, IsNotDarwin]>;
979 def : T1Pat<(ARMtcall texternalsym:$func), (tBLr9 texternalsym:$func)>,
980 Requires<[IsThumb, IsDarwin]>;
982 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi texternalsym:$func)>,
983 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
984 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi_r9 texternalsym:$func)>,
985 Requires<[IsThumb, HasV5T, IsDarwin]>;
987 // Indirect calls to ARM routines
988 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr GPR:$dst)>,
989 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
990 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr_r9 GPR:$dst)>,
991 Requires<[IsThumb, HasV5T, IsDarwin]>;
993 // zextload i1 -> zextload i8
994 def : T1Pat<(zextloadi1 t_addrmode_s1:$addr),
995 (tLDRB t_addrmode_s1:$addr)>;
997 // extload -> zextload
998 def : T1Pat<(extloadi1 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
999 def : T1Pat<(extloadi8 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
1000 def : T1Pat<(extloadi16 t_addrmode_s2:$addr), (tLDRH t_addrmode_s2:$addr)>;
1002 // If it's impossible to use [r,r] address mode for sextload, select to
1003 // ldr{b|h} + sxt{b|h} instead.
1004 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
1005 (tSXTB (tLDRB t_addrmode_s1:$addr))>,
1006 Requires<[IsThumb1Only, HasV6]>;
1007 def : T1Pat<(sextloadi16 t_addrmode_s2:$addr),
1008 (tSXTH (tLDRH t_addrmode_s2:$addr))>,
1009 Requires<[IsThumb1Only, HasV6]>;
1011 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
1012 (tASRri (tLSLri (tLDRB t_addrmode_s1:$addr), 24), 24)>;
1013 def : T1Pat<(sextloadi16 t_addrmode_s1:$addr),
1014 (tASRri (tLSLri (tLDRH t_addrmode_s1:$addr), 16), 16)>;
1016 // Large immediate handling.
1019 def : T1Pat<(i32 thumb_immshifted:$src),
1020 (tLSLri (tMOVi8 (thumb_immshifted_val imm:$src)),
1021 (thumb_immshifted_shamt imm:$src))>;
1023 def : T1Pat<(i32 imm0_255_comp:$src),
1024 (tMVN (tMOVi8 (imm_comp_XFORM imm:$src)))>;
1026 // Pseudo instruction that combines ldr from constpool and add pc. This should
1027 // be expanded into two instructions late to allow if-conversion and
1029 let isReMaterializable = 1 in
1030 def tLDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
1032 "${:comment} ldr.n\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
1033 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
1035 Requires<[IsThumb1Only]>;