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]>;
21 def imm_neg_XFORM : SDNodeXForm<imm, [{
22 return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
24 def imm_comp_XFORM : SDNodeXForm<imm, [{
25 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
29 /// imm0_7 predicate - True if the 32-bit immediate is in the range [0,7].
30 def imm0_7 : PatLeaf<(i32 imm), [{
31 return (uint32_t)N->getZExtValue() < 8;
33 def imm0_7_neg : PatLeaf<(i32 imm), [{
34 return (uint32_t)-N->getZExtValue() < 8;
37 def imm0_255 : PatLeaf<(i32 imm), [{
38 return (uint32_t)N->getZExtValue() < 256;
40 def imm0_255_comp : PatLeaf<(i32 imm), [{
41 return ~((uint32_t)N->getZExtValue()) < 256;
44 def imm8_255 : PatLeaf<(i32 imm), [{
45 return (uint32_t)N->getZExtValue() >= 8 && (uint32_t)N->getZExtValue() < 256;
47 def imm8_255_neg : PatLeaf<(i32 imm), [{
48 unsigned Val = -N->getZExtValue();
49 return Val >= 8 && Val < 256;
52 // Break imm's up into two pieces: an immediate + a left shift.
53 // This uses thumb_immshifted to match and thumb_immshifted_val and
54 // thumb_immshifted_shamt to get the val/shift pieces.
55 def thumb_immshifted : PatLeaf<(imm), [{
56 return ARM_AM::isThumbImmShiftedVal((unsigned)N->getZExtValue());
59 def thumb_immshifted_val : SDNodeXForm<imm, [{
60 unsigned V = ARM_AM::getThumbImmNonShiftedVal((unsigned)N->getZExtValue());
61 return CurDAG->getTargetConstant(V, MVT::i32);
64 def thumb_immshifted_shamt : SDNodeXForm<imm, [{
65 unsigned V = ARM_AM::getThumbImmValShift((unsigned)N->getZExtValue());
66 return CurDAG->getTargetConstant(V, MVT::i32);
69 // Scaled 4 immediate.
70 def t_imm_s4 : Operand<i32> {
71 let PrintMethod = "printThumbS4ImmOperand";
74 // Define Thumb specific addressing modes.
76 // t_addrmode_rr := reg + reg
78 def t_addrmode_rr : Operand<i32>,
79 ComplexPattern<i32, 2, "SelectThumbAddrModeRR", []> {
80 let PrintMethod = "printThumbAddrModeRROperand";
81 let MIOperandInfo = (ops tGPR:$base, tGPR:$offsreg);
84 // t_addrmode_s4 := reg + reg
87 def t_addrmode_s4 : Operand<i32>,
88 ComplexPattern<i32, 3, "SelectThumbAddrModeS4", []> {
89 let PrintMethod = "printThumbAddrModeS4Operand";
90 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
93 // t_addrmode_s2 := reg + reg
96 def t_addrmode_s2 : Operand<i32>,
97 ComplexPattern<i32, 3, "SelectThumbAddrModeS2", []> {
98 let PrintMethod = "printThumbAddrModeS2Operand";
99 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
102 // t_addrmode_s1 := reg + reg
105 def t_addrmode_s1 : Operand<i32>,
106 ComplexPattern<i32, 3, "SelectThumbAddrModeS1", []> {
107 let PrintMethod = "printThumbAddrModeS1Operand";
108 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
111 // t_addrmode_sp := sp + imm8 * 4
113 def t_addrmode_sp : Operand<i32>,
114 ComplexPattern<i32, 2, "SelectThumbAddrModeSP", []> {
115 let PrintMethod = "printThumbAddrModeSPOperand";
116 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm);
119 //===----------------------------------------------------------------------===//
120 // Miscellaneous Instructions.
123 let Defs = [SP], Uses = [SP] in {
124 def tADJCALLSTACKUP :
125 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2), NoItinerary,
126 "@ tADJCALLSTACKUP $amt1",
127 [(ARMcallseq_end imm:$amt1, imm:$amt2)]>, Requires<[IsThumb1Only]>;
129 def tADJCALLSTACKDOWN :
130 PseudoInst<(outs), (ins i32imm:$amt), NoItinerary,
131 "@ tADJCALLSTACKDOWN $amt",
132 [(ARMcallseq_start imm:$amt)]>, Requires<[IsThumb1Only]>;
135 // For both thumb1 and thumb2.
136 let isNotDuplicable = 1 in
137 def tPICADD : TIt<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp), IIC_iALUr,
138 "\n$cp:\n\tadd\t$dst, pc",
139 [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>;
142 def tADDrPCi : T1I<(outs tGPR:$dst), (ins t_imm_s4:$rhs), IIC_iALUi,
143 "add\t$dst, pc, $rhs", []>;
146 def tADDrSPi : T1I<(outs tGPR:$dst), (ins GPR:$sp, t_imm_s4:$rhs), IIC_iALUi,
147 "add\t$dst, $sp, $rhs", []>;
150 def tADDspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
151 "add\t$dst, $rhs", []>;
154 def tSUBspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
155 "sub\t$dst, $rhs", []>;
158 def tADDrSP : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
159 "add\t$dst, $rhs", []>;
162 def tADDspr : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
163 "add\t$dst, $rhs", []>;
165 // Pseudo instruction that will expand into a tSUBspi + a copy.
166 let usesCustomInserter = 1 in { // Expanded after instruction selection.
167 def tSUBspi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs),
168 NoItinerary, "@ sub\t$dst, $rhs", []>;
170 def tADDspr_ : PseudoInst<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
171 NoItinerary, "@ add\t$dst, $rhs", []>;
174 def tANDsp : PseudoInst<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs),
175 NoItinerary, "@ and\t$dst, $rhs", []>;
176 } // usesCustomInserter
178 //===----------------------------------------------------------------------===//
179 // Control Flow Instructions.
182 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
183 def tBX_RET : TI<(outs), (ins), IIC_Br, "bx\tlr", [(ARMretflag)]>;
184 // Alternative return instruction used by vararg functions.
185 def tBX_RET_vararg : TI<(outs), (ins tGPR:$target), IIC_Br, "bx\t$target", []>;
189 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
190 def tBRIND : TI<(outs), (ins GPR:$dst), IIC_Br, "mov\tpc, $dst",
194 // FIXME: remove when we have a way to marking a MI with these properties.
195 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
196 hasExtraDefRegAllocReq = 1 in
197 def tPOP_RET : T1I<(outs), (ins pred:$p, reglist:$wb, variable_ops), IIC_Br,
201 Defs = [R0, R1, R2, R3, R12, LR,
202 D0, D1, D2, D3, D4, D5, D6, D7,
203 D16, D17, D18, D19, D20, D21, D22, D23,
204 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
205 // Also used for Thumb2
206 def tBL : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
208 [(ARMtcall tglobaladdr:$func)]>,
209 Requires<[IsThumb, IsNotDarwin]>;
211 // ARMv5T and above, also used for Thumb2
212 def tBLXi : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
214 [(ARMcall tglobaladdr:$func)]>,
215 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
217 // Also used for Thumb2
218 def tBLXr : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
220 [(ARMtcall GPR:$func)]>,
221 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
224 def tBX : TIx2<(outs), (ins tGPR:$func, variable_ops), IIC_Br,
225 "mov\tlr, pc\n\tbx\t$func",
226 [(ARMcall_nolink tGPR:$func)]>,
227 Requires<[IsThumb1Only, IsNotDarwin]>;
230 // On Darwin R9 is call-clobbered.
232 Defs = [R0, R1, R2, R3, R9, R12, LR,
233 D0, D1, D2, D3, D4, D5, D6, D7,
234 D16, D17, D18, D19, D20, D21, D22, D23,
235 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
236 // Also used for Thumb2
237 def tBLr9 : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
239 [(ARMtcall tglobaladdr:$func)]>,
240 Requires<[IsThumb, IsDarwin]>;
242 // ARMv5T and above, also used for Thumb2
243 def tBLXi_r9 : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
245 [(ARMcall tglobaladdr:$func)]>,
246 Requires<[IsThumb, HasV5T, IsDarwin]>;
248 // Also used for Thumb2
249 def tBLXr_r9 : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
251 [(ARMtcall GPR:$func)]>,
252 Requires<[IsThumb, HasV5T, IsDarwin]>;
255 def tBXr9 : TIx2<(outs), (ins tGPR:$func, variable_ops), IIC_Br,
256 "mov\tlr, pc\n\tbx\t$func",
257 [(ARMcall_nolink tGPR:$func)]>,
258 Requires<[IsThumb1Only, IsDarwin]>;
261 let isBranch = 1, isTerminator = 1 in {
262 let isBarrier = 1 in {
263 let isPredicable = 1 in
264 def tB : T1I<(outs), (ins brtarget:$target), IIC_Br,
265 "b\t$target", [(br bb:$target)]>;
269 def tBfar : TIx2<(outs), (ins brtarget:$target), IIC_Br,
270 "bl\t$target\t@ far jump",[]>;
272 def tBR_JTr : T1JTI<(outs),
273 (ins tGPR:$target, jtblock_operand:$jt, i32imm:$id),
274 IIC_Br, "mov\tpc, $target\n\t.align\t2\n$jt",
275 [(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]>;
279 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
280 // a two-value operand where a dag node expects two operands. :(
281 let isBranch = 1, isTerminator = 1 in
282 def tBcc : T1I<(outs), (ins brtarget:$target, pred:$cc), IIC_Br,
284 [/*(ARMbrcond bb:$target, imm:$cc)*/]>;
286 // Compare and branch on zero / non-zero
287 let isBranch = 1, isTerminator = 1 in {
288 def tCBZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
289 "cbz\t$cmp, $target", []>;
291 def tCBNZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
292 "cbnz\t$cmp, $target", []>;
295 //===----------------------------------------------------------------------===//
296 // Load Store Instructions.
299 let canFoldAsLoad = 1 in
300 def tLDR : T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoadr,
301 "ldr", "\t$dst, $addr",
302 [(set tGPR:$dst, (load t_addrmode_s4:$addr))]>;
304 def tLDRB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoadr,
305 "ldrb", "\t$dst, $addr",
306 [(set tGPR:$dst, (zextloadi8 t_addrmode_s1:$addr))]>;
308 def tLDRH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoadr,
309 "ldrh", "\t$dst, $addr",
310 [(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>;
312 let AddedComplexity = 10 in
313 def tLDRSB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
314 "ldrsb", "\t$dst, $addr",
315 [(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>;
317 let AddedComplexity = 10 in
318 def tLDRSH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
319 "ldrsh", "\t$dst, $addr",
320 [(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>;
322 let canFoldAsLoad = 1 in
323 def tLDRspi : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
324 "ldr", "\t$dst, $addr",
325 [(set tGPR:$dst, (load t_addrmode_sp:$addr))]>;
327 // Special instruction for restore. It cannot clobber condition register
328 // when it's expanded by eliminateCallFramePseudoInstr().
329 let canFoldAsLoad = 1, mayLoad = 1 in
330 def tRestore : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
331 "ldr", "\t$dst, $addr", []>;
334 // FIXME: Use ldr.n to work around a Darwin assembler bug.
335 let canFoldAsLoad = 1 in
336 def tLDRpci : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
337 "ldr", ".n\t$dst, $addr",
338 [(set tGPR:$dst, (load (ARMWrapper tconstpool:$addr)))]>;
340 // Special LDR for loads from non-pc-relative constpools.
341 let canFoldAsLoad = 1, mayLoad = 1, isReMaterializable = 1 in
342 def tLDRcp : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
343 "ldr", "\t$dst, $addr", []>;
345 def tSTR : T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStorer,
346 "str", "\t$src, $addr",
347 [(store tGPR:$src, t_addrmode_s4:$addr)]>;
349 def tSTRB : T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStorer,
350 "strb", "\t$src, $addr",
351 [(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>;
353 def tSTRH : T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStorer,
354 "strh", "\t$src, $addr",
355 [(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>;
357 def tSTRspi : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
358 "str", "\t$src, $addr",
359 [(store tGPR:$src, t_addrmode_sp:$addr)]>;
361 let mayStore = 1 in {
362 // Special instruction for spill. It cannot clobber condition register
363 // when it's expanded by eliminateCallFramePseudoInstr().
364 def tSpill : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
365 "str", "\t$src, $addr", []>;
368 //===----------------------------------------------------------------------===//
369 // Load / store multiple Instructions.
372 // These requires base address to be written back or one of the loaded regs.
373 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
374 def tLDM : T1I<(outs),
375 (ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
377 "ldm${addr:submode}${p}\t$addr, $wb", []>;
379 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
380 def tSTM : T1I<(outs),
381 (ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
383 "stm${addr:submode}${p}\t$addr, $wb", []>;
385 let mayLoad = 1, Uses = [SP], Defs = [SP], hasExtraDefRegAllocReq = 1 in
386 def tPOP : T1I<(outs), (ins pred:$p, reglist:$wb, variable_ops), IIC_Br,
389 let mayStore = 1, Uses = [SP], Defs = [SP], hasExtraSrcRegAllocReq = 1 in
390 def tPUSH : T1I<(outs), (ins pred:$p, reglist:$wb, variable_ops), IIC_Br,
391 "push${p}\t$wb", []>;
393 //===----------------------------------------------------------------------===//
394 // Arithmetic Instructions.
397 // Add with carry register
398 let isCommutable = 1, Uses = [CPSR] in
399 def tADC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
400 "adc", "\t$dst, $rhs",
401 [(set tGPR:$dst, (adde tGPR:$lhs, tGPR:$rhs))]>;
404 def tADDi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
405 "add", "\t$dst, $lhs, $rhs",
406 [(set tGPR:$dst, (add tGPR:$lhs, imm0_7:$rhs))]>;
408 def tADDi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
409 "add", "\t$dst, $rhs",
410 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255:$rhs))]>;
413 let isCommutable = 1 in
414 def tADDrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
415 "add", "\t$dst, $lhs, $rhs",
416 [(set tGPR:$dst, (add tGPR:$lhs, tGPR:$rhs))]>;
418 let neverHasSideEffects = 1 in
419 def tADDhirr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
420 "add", "\t$dst, $rhs", []>;
423 let isCommutable = 1 in
424 def tAND : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
425 "and", "\t$dst, $rhs",
426 [(set tGPR:$dst, (and tGPR:$lhs, tGPR:$rhs))]>;
429 def tASRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
430 "asr", "\t$dst, $lhs, $rhs",
431 [(set tGPR:$dst, (sra tGPR:$lhs, (i32 imm:$rhs)))]>;
434 def tASRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
435 "asr", "\t$dst, $rhs",
436 [(set tGPR:$dst, (sra tGPR:$lhs, tGPR:$rhs))]>;
439 def tBIC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
440 "bic", "\t$dst, $rhs",
441 [(set tGPR:$dst, (and tGPR:$lhs, (not tGPR:$rhs)))]>;
444 let Defs = [CPSR] in {
445 def tCMN : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
446 "cmn", "\t$lhs, $rhs",
447 [(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>;
448 def tCMNZ : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
449 "cmn", "\t$lhs, $rhs",
450 [(ARMcmpZ tGPR:$lhs, (ineg tGPR:$rhs))]>;
454 let Defs = [CPSR] in {
455 def tCMPi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
456 "cmp", "\t$lhs, $rhs",
457 [(ARMcmp tGPR:$lhs, imm0_255:$rhs)]>;
458 def tCMPzi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
459 "cmp", "\t$lhs, $rhs",
460 [(ARMcmpZ tGPR:$lhs, imm0_255:$rhs)]>;
465 let Defs = [CPSR] in {
466 def tCMPr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
467 "cmp", "\t$lhs, $rhs",
468 [(ARMcmp tGPR:$lhs, tGPR:$rhs)]>;
469 def tCMPzr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
470 "cmp", "\t$lhs, $rhs",
471 [(ARMcmpZ tGPR:$lhs, tGPR:$rhs)]>;
473 def tCMPhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
474 "cmp", "\t$lhs, $rhs", []>;
475 def tCMPzhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
476 "cmp", "\t$lhs, $rhs", []>;
481 let isCommutable = 1 in
482 def tEOR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
483 "eor", "\t$dst, $rhs",
484 [(set tGPR:$dst, (xor tGPR:$lhs, tGPR:$rhs))]>;
487 def tLSLri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
488 "lsl", "\t$dst, $lhs, $rhs",
489 [(set tGPR:$dst, (shl tGPR:$lhs, (i32 imm:$rhs)))]>;
492 def tLSLrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
493 "lsl", "\t$dst, $rhs",
494 [(set tGPR:$dst, (shl tGPR:$lhs, tGPR:$rhs))]>;
497 def tLSRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
498 "lsr", "\t$dst, $lhs, $rhs",
499 [(set tGPR:$dst, (srl tGPR:$lhs, (i32 imm:$rhs)))]>;
502 def tLSRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
503 "lsr", "\t$dst, $rhs",
504 [(set tGPR:$dst, (srl tGPR:$lhs, tGPR:$rhs))]>;
507 def tMOVi8 : T1sI<(outs tGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
508 "mov", "\t$dst, $src",
509 [(set tGPR:$dst, imm0_255:$src)]>;
511 // TODO: A7-73: MOV(2) - mov setting flag.
514 let neverHasSideEffects = 1 in {
515 // FIXME: Make this predicable.
516 def tMOVr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
517 "mov\t$dst, $src", []>;
519 def tMOVSr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
520 "movs\t$dst, $src", []>;
522 // FIXME: Make these predicable.
523 def tMOVgpr2tgpr : T1I<(outs tGPR:$dst), (ins GPR:$src), IIC_iMOVr,
524 "mov\t$dst, $src", []>;
525 def tMOVtgpr2gpr : T1I<(outs GPR:$dst), (ins tGPR:$src), IIC_iMOVr,
526 "mov\t$dst, $src", []>;
527 def tMOVgpr2gpr : T1I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
528 "mov\t$dst, $src", []>;
529 } // neverHasSideEffects
532 let isCommutable = 1 in
533 def tMUL : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMUL32,
534 "mul", "\t$dst, $rhs",
535 [(set tGPR:$dst, (mul tGPR:$lhs, tGPR:$rhs))]>;
537 // move inverse register
538 def tMVN : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
539 "mvn", "\t$dst, $src",
540 [(set tGPR:$dst, (not tGPR:$src))]>;
542 // bitwise or register
543 let isCommutable = 1 in
544 def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
545 "orr", "\t$dst, $rhs",
546 [(set tGPR:$dst, (or tGPR:$lhs, tGPR:$rhs))]>;
549 def tREV : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
550 "rev", "\t$dst, $src",
551 [(set tGPR:$dst, (bswap tGPR:$src))]>,
552 Requires<[IsThumb1Only, HasV6]>;
554 def tREV16 : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
555 "rev16", "\t$dst, $src",
557 (or (and (srl tGPR:$src, (i32 8)), 0xFF),
558 (or (and (shl tGPR:$src, (i32 8)), 0xFF00),
559 (or (and (srl tGPR:$src, (i32 8)), 0xFF0000),
560 (and (shl tGPR:$src, (i32 8)), 0xFF000000)))))]>,
561 Requires<[IsThumb1Only, HasV6]>;
563 def tREVSH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
564 "revsh", "\t$dst, $src",
567 (or (srl (and tGPR:$src, 0xFF00), (i32 8)),
568 (shl tGPR:$src, (i32 8))), i16))]>,
569 Requires<[IsThumb1Only, HasV6]>;
571 // rotate right register
572 def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
573 "ror", "\t$dst, $rhs",
574 [(set tGPR:$dst, (rotr tGPR:$lhs, tGPR:$rhs))]>;
577 def tRSB : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iALUi,
578 "rsb", "\t$dst, $src, #0",
579 [(set tGPR:$dst, (ineg tGPR:$src))]>;
581 // Subtract with carry register
583 def tSBC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
584 "sbc", "\t$dst, $rhs",
585 [(set tGPR:$dst, (sube tGPR:$lhs, tGPR:$rhs))]>;
587 // Subtract immediate
588 def tSUBi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
589 "sub", "\t$dst, $lhs, $rhs",
590 [(set tGPR:$dst, (add tGPR:$lhs, imm0_7_neg:$rhs))]>;
592 def tSUBi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
593 "sub", "\t$dst, $rhs",
594 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255_neg:$rhs))]>;
597 def tSUBrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
598 "sub", "\t$dst, $lhs, $rhs",
599 [(set tGPR:$dst, (sub tGPR:$lhs, tGPR:$rhs))]>;
601 // TODO: A7-96: STMIA - store multiple.
604 def tSXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
605 "sxtb", "\t$dst, $src",
606 [(set tGPR:$dst, (sext_inreg tGPR:$src, i8))]>,
607 Requires<[IsThumb1Only, HasV6]>;
610 def tSXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
611 "sxth", "\t$dst, $src",
612 [(set tGPR:$dst, (sext_inreg tGPR:$src, i16))]>,
613 Requires<[IsThumb1Only, HasV6]>;
616 let isCommutable = 1, Defs = [CPSR] in
617 def tTST : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
618 "tst", "\t$lhs, $rhs",
619 [(ARMcmpZ (and tGPR:$lhs, tGPR:$rhs), 0)]>;
622 def tUXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
623 "uxtb", "\t$dst, $src",
624 [(set tGPR:$dst, (and tGPR:$src, 0xFF))]>,
625 Requires<[IsThumb1Only, HasV6]>;
628 def tUXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
629 "uxth", "\t$dst, $src",
630 [(set tGPR:$dst, (and tGPR:$src, 0xFFFF))]>,
631 Requires<[IsThumb1Only, HasV6]>;
634 // Conditional move tMOVCCr - Used to implement the Thumb SELECT_CC DAG operation.
635 // Expanded after instruction selection into a branch sequence.
636 let usesCustomInserter = 1 in // Expanded after instruction selection.
638 PseudoInst<(outs tGPR:$dst), (ins tGPR:$false, tGPR:$true, pred:$cc),
639 NoItinerary, "@ tMOVCCr $cc",
640 [/*(set tGPR:$dst, (ARMcmov tGPR:$false, tGPR:$true, imm:$cc))*/]>;
643 // 16-bit movcc in IT blocks for Thumb2.
644 def tMOVCCr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iCMOVr,
645 "mov", "\t$dst, $rhs", []>;
647 def tMOVCCi : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iCMOVi,
648 "mov", "\t$dst, $rhs", []>;
650 // tLEApcrel - Load a pc-relative address into a register without offending the
652 def tLEApcrel : T1I<(outs tGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
653 "adr$p\t$dst, #$label", []>;
655 def tLEApcrelJT : T1I<(outs tGPR:$dst),
656 (ins i32imm:$label, nohash_imm:$id, pred:$p),
657 IIC_iALUi, "adr$p\t$dst, #${label}_${id}", []>;
659 //===----------------------------------------------------------------------===//
663 // __aeabi_read_tp preserves the registers r1-r3.
666 def tTPsoft : TIx2<(outs), (ins), IIC_Br,
667 "bl\t__aeabi_read_tp",
668 [(set R0, ARMthread_pointer)]>;
671 //===----------------------------------------------------------------------===//
672 // Non-Instruction Patterns
676 def : T1Pat<(addc tGPR:$lhs, imm0_7:$rhs),
677 (tADDi3 tGPR:$lhs, imm0_7:$rhs)>;
678 def : T1Pat<(addc tGPR:$lhs, imm8_255:$rhs),
679 (tADDi8 tGPR:$lhs, imm8_255:$rhs)>;
680 def : T1Pat<(addc tGPR:$lhs, tGPR:$rhs),
681 (tADDrr tGPR:$lhs, tGPR:$rhs)>;
683 // Subtract with carry
684 def : T1Pat<(addc tGPR:$lhs, imm0_7_neg:$rhs),
685 (tSUBi3 tGPR:$lhs, imm0_7_neg:$rhs)>;
686 def : T1Pat<(addc tGPR:$lhs, imm8_255_neg:$rhs),
687 (tSUBi8 tGPR:$lhs, imm8_255_neg:$rhs)>;
688 def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
689 (tSUBrr tGPR:$lhs, tGPR:$rhs)>;
691 // ConstantPool, GlobalAddress
692 def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
693 def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
696 def : T1Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
697 (tLEApcrelJT tjumptable:$dst, imm:$id)>;
700 def : T1Pat<(ARMtcall texternalsym:$func), (tBL texternalsym:$func)>,
701 Requires<[IsThumb, IsNotDarwin]>;
702 def : T1Pat<(ARMtcall texternalsym:$func), (tBLr9 texternalsym:$func)>,
703 Requires<[IsThumb, IsDarwin]>;
705 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi texternalsym:$func)>,
706 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
707 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi_r9 texternalsym:$func)>,
708 Requires<[IsThumb, HasV5T, IsDarwin]>;
710 // Indirect calls to ARM routines
711 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr GPR:$dst)>,
712 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
713 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr_r9 GPR:$dst)>,
714 Requires<[IsThumb, HasV5T, IsDarwin]>;
716 // zextload i1 -> zextload i8
717 def : T1Pat<(zextloadi1 t_addrmode_s1:$addr),
718 (tLDRB t_addrmode_s1:$addr)>;
720 // extload -> zextload
721 def : T1Pat<(extloadi1 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
722 def : T1Pat<(extloadi8 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
723 def : T1Pat<(extloadi16 t_addrmode_s2:$addr), (tLDRH t_addrmode_s2:$addr)>;
725 // If it's impossible to use [r,r] address mode for sextload, select to
726 // ldr{b|h} + sxt{b|h} instead.
727 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
728 (tSXTB (tLDRB t_addrmode_s1:$addr))>,
729 Requires<[IsThumb1Only, HasV6]>;
730 def : T1Pat<(sextloadi16 t_addrmode_s2:$addr),
731 (tSXTH (tLDRH t_addrmode_s2:$addr))>,
732 Requires<[IsThumb1Only, HasV6]>;
734 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
735 (tASRri (tLSLri (tLDRB t_addrmode_s1:$addr), 24), 24)>;
736 def : T1Pat<(sextloadi16 t_addrmode_s1:$addr),
737 (tASRri (tLSLri (tLDRH t_addrmode_s1:$addr), 16), 16)>;
739 // Large immediate handling.
742 def : T1Pat<(i32 thumb_immshifted:$src),
743 (tLSLri (tMOVi8 (thumb_immshifted_val imm:$src)),
744 (thumb_immshifted_shamt imm:$src))>;
746 def : T1Pat<(i32 imm0_255_comp:$src),
747 (tMVN (tMOVi8 (imm_comp_XFORM imm:$src)))>;
749 // Pseudo instruction that combines ldr from constpool and add pc. This should
750 // be expanded into two instructions late to allow if-conversion and
752 let isReMaterializable = 1 in
753 def tLDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
754 NoItinerary, "@ ldr.n\t$dst, $addr\n$cp:\n\tadd\t$dst, pc",
755 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
757 Requires<[IsThumb1Only]>;