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 // Define Thumb specific addressing modes.
71 // t_addrmode_rr := reg + reg
73 def t_addrmode_rr : Operand<i32>,
74 ComplexPattern<i32, 2, "SelectThumbAddrModeRR", []> {
75 let PrintMethod = "printThumbAddrModeRROperand";
76 let MIOperandInfo = (ops tGPR:$base, tGPR:$offsreg);
79 // t_addrmode_s4 := reg + reg
82 def t_addrmode_s4 : Operand<i32>,
83 ComplexPattern<i32, 3, "SelectThumbAddrModeS4", []> {
84 let PrintMethod = "printThumbAddrModeS4Operand";
85 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
88 // t_addrmode_s2 := reg + reg
91 def t_addrmode_s2 : Operand<i32>,
92 ComplexPattern<i32, 3, "SelectThumbAddrModeS2", []> {
93 let PrintMethod = "printThumbAddrModeS2Operand";
94 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
97 // t_addrmode_s1 := reg + reg
100 def t_addrmode_s1 : Operand<i32>,
101 ComplexPattern<i32, 3, "SelectThumbAddrModeS1", []> {
102 let PrintMethod = "printThumbAddrModeS1Operand";
103 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
106 // t_addrmode_sp := sp + imm8 * 4
108 def t_addrmode_sp : Operand<i32>,
109 ComplexPattern<i32, 2, "SelectThumbAddrModeSP", []> {
110 let PrintMethod = "printThumbAddrModeSPOperand";
111 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm);
114 //===----------------------------------------------------------------------===//
115 // Miscellaneous Instructions.
118 let Defs = [SP], Uses = [SP] in {
119 def tADJCALLSTACKUP :
120 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2), NoItinerary,
121 "@ tADJCALLSTACKUP $amt1",
122 [(ARMcallseq_end imm:$amt1, imm:$amt2)]>, Requires<[IsThumb1Only]>;
124 def tADJCALLSTACKDOWN :
125 PseudoInst<(outs), (ins i32imm:$amt), NoItinerary,
126 "@ tADJCALLSTACKDOWN $amt",
127 [(ARMcallseq_start imm:$amt)]>, Requires<[IsThumb1Only]>;
130 // For both thumb1 and thumb2.
131 let isNotDuplicable = 1 in
132 def tPICADD : TIt<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp), IIC_iALUr,
133 "\n$cp:\n\tadd $dst, pc",
134 [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>;
137 def tADDrPCi : T1I<(outs tGPR:$dst), (ins i32imm:$rhs), IIC_iALUi,
138 "add $dst, pc, $rhs * 4", []>;
141 def tADDrSPi : T1I<(outs tGPR:$dst), (ins GPR:$sp, i32imm:$rhs), IIC_iALUi,
142 "add $dst, $sp, $rhs * 4", []>;
145 def tADDspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iALUi,
146 "add $dst, $rhs * 4", []>;
149 def tSUBspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iALUi,
150 "sub $dst, $rhs * 4", []>;
153 def tADDrSP : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
154 "add $dst, $rhs", []>;
157 def tADDspr : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
158 "add $dst, $rhs", []>;
160 // Pseudo instruction that will expand into a tSUBspi + a copy.
161 let usesCustomDAGSchedInserter = 1 in { // Expanded by the scheduler.
162 def tSUBspi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs),
163 NoItinerary, "@ sub $dst, $rhs * 4", []>;
165 def tADDspr_ : PseudoInst<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
166 NoItinerary, "@ add $dst, $rhs", []>;
169 def tANDsp : PseudoInst<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs),
170 NoItinerary, "@ and $dst, $rhs", []>;
171 } // usesCustomDAGSchedInserter
173 //===----------------------------------------------------------------------===//
174 // Control Flow Instructions.
177 let isReturn = 1, isTerminator = 1 in {
178 def tBX_RET : TI<(outs), (ins), IIC_Br, "bx lr", [(ARMretflag)]>;
179 // Alternative return instruction used by vararg functions.
180 def tBX_RET_vararg : TI<(outs), (ins tGPR:$target), IIC_Br, "bx $target", []>;
183 // FIXME: remove when we have a way to marking a MI with these properties.
184 let isReturn = 1, isTerminator = 1, mayLoad = 1 in
185 def tPOP_RET : T1I<(outs), (ins pred:$p, reglist:$dst1, variable_ops), IIC_Br,
186 "pop${p} $dst1", []>;
189 Defs = [R0, R1, R2, R3, R12, LR,
190 D0, D1, D2, D3, D4, D5, D6, D7,
191 D16, D17, D18, D19, D20, D21, D22, D23,
192 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
193 // Also used for Thumb2
194 def tBL : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
196 [(ARMtcall tglobaladdr:$func)]>,
197 Requires<[IsThumb, IsNotDarwin]>;
199 // ARMv5T and above, also used for Thumb2
200 def tBLXi : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
202 [(ARMcall tglobaladdr:$func)]>,
203 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
205 // Also used for Thumb2
206 def tBLXr : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
208 [(ARMtcall GPR:$func)]>,
209 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
212 def tBX : TIx2<(outs), (ins tGPR:$func, variable_ops), IIC_Br,
213 "mov lr, pc\n\tbx $func",
214 [(ARMcall_nolink tGPR:$func)]>,
215 Requires<[IsThumb1Only, IsNotDarwin]>;
218 // On Darwin R9 is call-clobbered.
220 Defs = [R0, R1, R2, R3, R9, R12, LR,
221 D0, D1, D2, D3, D4, D5, D6, D7,
222 D16, D17, D18, D19, D20, D21, D22, D23,
223 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
224 // Also used for Thumb2
225 def tBLr9 : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
227 [(ARMtcall tglobaladdr:$func)]>,
228 Requires<[IsThumb, IsDarwin]>;
230 // ARMv5T and above, also used for Thumb2
231 def tBLXi_r9 : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
233 [(ARMcall tglobaladdr:$func)]>,
234 Requires<[IsThumb, HasV5T, IsDarwin]>;
236 // Also used for Thumb2
237 def tBLXr_r9 : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
239 [(ARMtcall GPR:$func)]>,
240 Requires<[IsThumb, HasV5T, IsDarwin]>;
243 def tBXr9 : TIx2<(outs), (ins tGPR:$func, variable_ops), IIC_Br,
244 "mov lr, pc\n\tbx $func",
245 [(ARMcall_nolink tGPR:$func)]>,
246 Requires<[IsThumb1Only, IsDarwin]>;
249 let isBranch = 1, isTerminator = 1 in {
250 let isBarrier = 1 in {
251 let isPredicable = 1 in
252 def tB : T1I<(outs), (ins brtarget:$target), IIC_Br,
253 "b $target", [(br bb:$target)]>;
257 def tBfar : TIx2<(outs), (ins brtarget:$target), IIC_Br,
258 "bl $target\t@ far jump",[]>;
260 def tBR_JTr : T1JTI<(outs),
261 (ins tGPR:$target, jtblock_operand:$jt, i32imm:$id),
262 IIC_Br, "mov pc, $target\n\t.align\t2\n$jt",
263 [(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]>;
267 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
268 // a two-value operand where a dag node expects two operands. :(
269 let isBranch = 1, isTerminator = 1 in
270 def tBcc : T1I<(outs), (ins brtarget:$target, pred:$cc), IIC_Br,
272 [/*(ARMbrcond bb:$target, imm:$cc)*/]>;
274 //===----------------------------------------------------------------------===//
275 // Load Store Instructions.
278 let canFoldAsLoad = 1 in
279 def tLDR : T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoadr,
280 "ldr", " $dst, $addr",
281 [(set tGPR:$dst, (load t_addrmode_s4:$addr))]>;
283 def tLDRB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoadr,
284 "ldrb", " $dst, $addr",
285 [(set tGPR:$dst, (zextloadi8 t_addrmode_s1:$addr))]>;
287 def tLDRH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoadr,
288 "ldrh", " $dst, $addr",
289 [(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>;
291 let AddedComplexity = 10 in
292 def tLDRSB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
293 "ldrsb", " $dst, $addr",
294 [(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>;
296 let AddedComplexity = 10 in
297 def tLDRSH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
298 "ldrsh", " $dst, $addr",
299 [(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>;
301 let canFoldAsLoad = 1 in
302 def tLDRspi : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
303 "ldr", " $dst, $addr",
304 [(set tGPR:$dst, (load t_addrmode_sp:$addr))]>;
306 // Special instruction for restore. It cannot clobber condition register
307 // when it's expanded by eliminateCallFramePseudoInstr().
308 let canFoldAsLoad = 1, mayLoad = 1 in
309 def tRestore : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
310 "ldr", " $dst, $addr", []>;
313 let canFoldAsLoad = 1 in
314 def tLDRpci : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
315 "ldr", " $dst, $addr",
316 [(set tGPR:$dst, (load (ARMWrapper tconstpool:$addr)))]>;
318 // Special LDR for loads from non-pc-relative constpools.
319 let canFoldAsLoad = 1, mayLoad = 1, isReMaterializable = 1 in
320 def tLDRcp : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
321 "ldr", " $dst, $addr", []>;
323 def tSTR : T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStorer,
324 "str", " $src, $addr",
325 [(store tGPR:$src, t_addrmode_s4:$addr)]>;
327 def tSTRB : T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStorer,
328 "strb", " $src, $addr",
329 [(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>;
331 def tSTRH : T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStorer,
332 "strh", " $src, $addr",
333 [(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>;
335 def tSTRspi : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
336 "str", " $src, $addr",
337 [(store tGPR:$src, t_addrmode_sp:$addr)]>;
339 let mayStore = 1 in {
340 // Special instruction for spill. It cannot clobber condition register
341 // when it's expanded by eliminateCallFramePseudoInstr().
342 def tSpill : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
343 "str", " $src, $addr", []>;
346 //===----------------------------------------------------------------------===//
347 // Load / store multiple Instructions.
350 // These requires base address to be written back or one of the loaded regs.
352 def tLDM : T1I<(outs),
353 (ins addrmode4:$addr, pred:$p, reglist:$dst1, variable_ops),
355 "ldm${addr:submode}${p} $addr, $dst1", []>;
358 def tSTM : T1I<(outs),
359 (ins addrmode4:$addr, pred:$p, reglist:$src1, variable_ops),
361 "stm${addr:submode}${p} $addr, $src1", []>;
363 let mayLoad = 1, Uses = [SP], Defs = [SP] in
364 def tPOP : T1I<(outs), (ins pred:$p, reglist:$dst1, variable_ops), IIC_Br,
365 "pop${p} $dst1", []>;
367 let mayStore = 1, Uses = [SP], Defs = [SP] in
368 def tPUSH : T1I<(outs), (ins pred:$p, reglist:$src1, variable_ops), IIC_Br,
369 "push${p} $src1", []>;
371 //===----------------------------------------------------------------------===//
372 // Arithmetic Instructions.
375 // Add with carry register
376 let isCommutable = 1, Uses = [CPSR] in
377 def tADC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
378 "adc", " $dst, $rhs",
379 [(set tGPR:$dst, (adde tGPR:$lhs, tGPR:$rhs))]>;
382 def tADDi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
383 "add", " $dst, $lhs, $rhs",
384 [(set tGPR:$dst, (add tGPR:$lhs, imm0_7:$rhs))]>;
386 def tADDi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
387 "add", " $dst, $rhs",
388 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255:$rhs))]>;
391 let isCommutable = 1 in
392 def tADDrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
393 "add", " $dst, $lhs, $rhs",
394 [(set tGPR:$dst, (add tGPR:$lhs, tGPR:$rhs))]>;
396 let neverHasSideEffects = 1 in
397 def tADDhirr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
398 "add", " $dst, $rhs", []>;
401 let isCommutable = 1 in
402 def tAND : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
403 "and", " $dst, $rhs",
404 [(set tGPR:$dst, (and tGPR:$lhs, tGPR:$rhs))]>;
407 def tASRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
408 "asr", " $dst, $lhs, $rhs",
409 [(set tGPR:$dst, (sra tGPR:$lhs, (i32 imm:$rhs)))]>;
412 def tASRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
413 "asr", " $dst, $rhs",
414 [(set tGPR:$dst, (sra tGPR:$lhs, tGPR:$rhs))]>;
417 def tBIC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
418 "bic", " $dst, $rhs",
419 [(set tGPR:$dst, (and tGPR:$lhs, (not tGPR:$rhs)))]>;
422 let Defs = [CPSR] in {
423 def tCMN : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
424 "cmn", " $lhs, $rhs",
425 [(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>;
426 def tCMNZ : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
427 "cmn", " $lhs, $rhs",
428 [(ARMcmpZ tGPR:$lhs, (ineg tGPR:$rhs))]>;
432 let Defs = [CPSR] in {
433 def tCMPi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
434 "cmp", " $lhs, $rhs",
435 [(ARMcmp tGPR:$lhs, imm0_255:$rhs)]>;
436 def tCMPzi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
437 "cmp", " $lhs, $rhs",
438 [(ARMcmpZ tGPR:$lhs, imm0_255:$rhs)]>;
443 let Defs = [CPSR] in {
444 def tCMPr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
445 "cmp", " $lhs, $rhs",
446 [(ARMcmp tGPR:$lhs, tGPR:$rhs)]>;
447 def tCMPzr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
448 "cmp", " $lhs, $rhs",
449 [(ARMcmpZ tGPR:$lhs, tGPR:$rhs)]>;
451 def tCMPhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
452 "cmp", " $lhs, $rhs", []>;
453 def tCMPzhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
454 "cmp", " $lhs, $rhs", []>;
459 let isCommutable = 1 in
460 def tEOR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
461 "eor", " $dst, $rhs",
462 [(set tGPR:$dst, (xor tGPR:$lhs, tGPR:$rhs))]>;
465 def tLSLri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
466 "lsl", " $dst, $lhs, $rhs",
467 [(set tGPR:$dst, (shl tGPR:$lhs, (i32 imm:$rhs)))]>;
470 def tLSLrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
471 "lsl", " $dst, $rhs",
472 [(set tGPR:$dst, (shl tGPR:$lhs, tGPR:$rhs))]>;
475 def tLSRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
476 "lsr", " $dst, $lhs, $rhs",
477 [(set tGPR:$dst, (srl tGPR:$lhs, (i32 imm:$rhs)))]>;
480 def tLSRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
481 "lsr", " $dst, $rhs",
482 [(set tGPR:$dst, (srl tGPR:$lhs, tGPR:$rhs))]>;
485 def tMOVi8 : T1sI<(outs tGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
486 "mov", " $dst, $src",
487 [(set tGPR:$dst, imm0_255:$src)]>;
489 // TODO: A7-73: MOV(2) - mov setting flag.
492 let neverHasSideEffects = 1 in {
493 // FIXME: Make this predicable.
494 def tMOVr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
495 "mov $dst, $src", []>;
497 def tMOVSr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
498 "movs $dst, $src", []>;
500 // FIXME: Make these predicable.
501 def tMOVgpr2tgpr : T1I<(outs tGPR:$dst), (ins GPR:$src), IIC_iMOVr,
502 "mov $dst, $src", []>;
503 def tMOVtgpr2gpr : T1I<(outs GPR:$dst), (ins tGPR:$src), IIC_iMOVr,
504 "mov $dst, $src", []>;
505 def tMOVgpr2gpr : T1I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
506 "mov $dst, $src", []>;
507 } // neverHasSideEffects
510 let isCommutable = 1 in
511 def tMUL : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMUL32,
512 "mul", " $dst, $rhs",
513 [(set tGPR:$dst, (mul tGPR:$lhs, tGPR:$rhs))]>;
515 // move inverse register
516 def tMVN : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
517 "mvn", " $dst, $src",
518 [(set tGPR:$dst, (not tGPR:$src))]>;
520 // bitwise or register
521 let isCommutable = 1 in
522 def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
523 "orr", " $dst, $rhs",
524 [(set tGPR:$dst, (or tGPR:$lhs, tGPR:$rhs))]>;
527 def tREV : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
528 "rev", " $dst, $src",
529 [(set tGPR:$dst, (bswap tGPR:$src))]>,
530 Requires<[IsThumb1Only, HasV6]>;
532 def tREV16 : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
533 "rev16", " $dst, $src",
535 (or (and (srl tGPR:$src, (i32 8)), 0xFF),
536 (or (and (shl tGPR:$src, (i32 8)), 0xFF00),
537 (or (and (srl tGPR:$src, (i32 8)), 0xFF0000),
538 (and (shl tGPR:$src, (i32 8)), 0xFF000000)))))]>,
539 Requires<[IsThumb1Only, HasV6]>;
541 def tREVSH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
542 "revsh", " $dst, $src",
545 (or (srl (and tGPR:$src, 0xFF00), (i32 8)),
546 (shl tGPR:$src, (i32 8))), i16))]>,
547 Requires<[IsThumb1Only, HasV6]>;
549 // rotate right register
550 def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
551 "ror", " $dst, $rhs",
552 [(set tGPR:$dst, (rotr tGPR:$lhs, tGPR:$rhs))]>;
555 def tRSB : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iALUi,
556 "rsb", " $dst, $src, #0",
557 [(set tGPR:$dst, (ineg tGPR:$src))]>;
559 // Subtract with carry register
561 def tSBC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
562 "sbc", " $dst, $rhs",
563 [(set tGPR:$dst, (sube tGPR:$lhs, tGPR:$rhs))]>;
565 // Subtract immediate
566 def tSUBi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
567 "sub", " $dst, $lhs, $rhs",
568 [(set tGPR:$dst, (add tGPR:$lhs, imm0_7_neg:$rhs))]>;
570 def tSUBi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
571 "sub", " $dst, $rhs",
572 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255_neg:$rhs))]>;
575 def tSUBrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
576 "sub", " $dst, $lhs, $rhs",
577 [(set tGPR:$dst, (sub tGPR:$lhs, tGPR:$rhs))]>;
579 // TODO: A7-96: STMIA - store multiple.
582 def tSXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
583 "sxtb", " $dst, $src",
584 [(set tGPR:$dst, (sext_inreg tGPR:$src, i8))]>,
585 Requires<[IsThumb1Only, HasV6]>;
588 def tSXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
589 "sxth", " $dst, $src",
590 [(set tGPR:$dst, (sext_inreg tGPR:$src, i16))]>,
591 Requires<[IsThumb1Only, HasV6]>;
594 let isCommutable = 1, Defs = [CPSR] in
595 def tTST : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
596 "tst", " $lhs, $rhs",
597 [(ARMcmpZ (and tGPR:$lhs, tGPR:$rhs), 0)]>;
600 def tUXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
601 "uxtb", " $dst, $src",
602 [(set tGPR:$dst, (and tGPR:$src, 0xFF))]>,
603 Requires<[IsThumb1Only, HasV6]>;
606 def tUXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
607 "uxth", " $dst, $src",
608 [(set tGPR:$dst, (and tGPR:$src, 0xFFFF))]>,
609 Requires<[IsThumb1Only, HasV6]>;
612 // Conditional move tMOVCCr - Used to implement the Thumb SELECT_CC DAG operation.
613 // Expanded by the scheduler into a branch sequence.
614 let usesCustomDAGSchedInserter = 1 in // Expanded by the scheduler.
616 PseudoInst<(outs tGPR:$dst), (ins tGPR:$false, tGPR:$true, pred:$cc),
617 NoItinerary, "@ tMOVCCr $cc",
618 [/*(set tGPR:$dst, (ARMcmov tGPR:$false, tGPR:$true, imm:$cc))*/]>;
621 // 16-bit movcc in IT blocks for Thumb2.
622 def tMOVCCr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iCMOVr,
623 "mov", " $dst, $rhs", []>;
625 def tMOVCCi : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iCMOVi,
626 "mov", " $dst, $rhs", []>;
628 // tLEApcrel - Load a pc-relative address into a register without offending the
630 def tLEApcrel : T1I<(outs tGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
631 "adr$p $dst, #$label", []>;
633 def tLEApcrelJT : T1I<(outs tGPR:$dst),
634 (ins i32imm:$label, nohash_imm:$id, pred:$p),
635 IIC_iALUi, "adr$p $dst, #${label}_${id}", []>;
637 //===----------------------------------------------------------------------===//
641 // __aeabi_read_tp preserves the registers r1-r3.
644 def tTPsoft : TIx2<(outs), (ins), IIC_Br,
645 "bl __aeabi_read_tp",
646 [(set R0, ARMthread_pointer)]>;
649 //===----------------------------------------------------------------------===//
650 // Non-Instruction Patterns
654 def : T1Pat<(addc tGPR:$lhs, imm0_7:$rhs),
655 (tADDi3 tGPR:$lhs, imm0_7:$rhs)>;
656 def : T1Pat<(addc tGPR:$lhs, imm8_255:$rhs),
657 (tADDi8 tGPR:$lhs, imm8_255:$rhs)>;
658 def : T1Pat<(addc tGPR:$lhs, tGPR:$rhs),
659 (tADDrr tGPR:$lhs, tGPR:$rhs)>;
661 // Subtract with carry
662 def : T1Pat<(addc tGPR:$lhs, imm0_7_neg:$rhs),
663 (tSUBi3 tGPR:$lhs, imm0_7_neg:$rhs)>;
664 def : T1Pat<(addc tGPR:$lhs, imm8_255_neg:$rhs),
665 (tSUBi8 tGPR:$lhs, imm8_255_neg:$rhs)>;
666 def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
667 (tSUBrr tGPR:$lhs, tGPR:$rhs)>;
669 // ConstantPool, GlobalAddress
670 def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
671 def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
674 def : T1Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
675 (tLEApcrelJT tjumptable:$dst, imm:$id)>;
678 def : T1Pat<(ARMtcall texternalsym:$func), (tBL texternalsym:$func)>,
679 Requires<[IsThumb, IsNotDarwin]>;
680 def : T1Pat<(ARMtcall texternalsym:$func), (tBLr9 texternalsym:$func)>,
681 Requires<[IsThumb, IsDarwin]>;
683 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi texternalsym:$func)>,
684 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
685 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi_r9 texternalsym:$func)>,
686 Requires<[IsThumb, HasV5T, IsDarwin]>;
688 // Indirect calls to ARM routines
689 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr GPR:$dst)>,
690 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
691 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr_r9 GPR:$dst)>,
692 Requires<[IsThumb, HasV5T, IsDarwin]>;
694 // zextload i1 -> zextload i8
695 def : T1Pat<(zextloadi1 t_addrmode_s1:$addr),
696 (tLDRB t_addrmode_s1:$addr)>;
698 // extload -> zextload
699 def : T1Pat<(extloadi1 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
700 def : T1Pat<(extloadi8 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
701 def : T1Pat<(extloadi16 t_addrmode_s2:$addr), (tLDRH t_addrmode_s2:$addr)>;
703 // If it's impossible to use [r,r] address mode for sextload, select to
704 // ldr{b|h} + sxt{b|h} instead.
705 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
706 (tSXTB (tLDRB t_addrmode_s1:$addr))>,
707 Requires<[IsThumb1Only, HasV6]>;
708 def : T1Pat<(sextloadi16 t_addrmode_s2:$addr),
709 (tSXTH (tLDRH t_addrmode_s2:$addr))>,
710 Requires<[IsThumb1Only, HasV6]>;
712 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
713 (tASRri (tLSLri (tLDRB t_addrmode_s1:$addr), 24), 24)>;
714 def : T1Pat<(sextloadi16 t_addrmode_s1:$addr),
715 (tASRri (tLSLri (tLDRH t_addrmode_s1:$addr), 16), 16)>;
717 // Large immediate handling.
720 def : T1Pat<(i32 thumb_immshifted:$src),
721 (tLSLri (tMOVi8 (thumb_immshifted_val imm:$src)),
722 (thumb_immshifted_shamt imm:$src))>;
724 def : T1Pat<(i32 imm0_255_comp:$src),
725 (tMVN (tMOVi8 (imm_comp_XFORM imm:$src)))>;