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 def MemModeThumbAsmOperand : AsmOperandClass {
78 let Name = "MemModeThumb";
79 let SuperClasses = [];
82 // t_addrmode_rr := reg + reg
84 def t_addrmode_rr : Operand<i32>,
85 ComplexPattern<i32, 2, "SelectThumbAddrModeRR", []> {
86 let PrintMethod = "printThumbAddrModeRROperand";
87 let MIOperandInfo = (ops tGPR:$base, tGPR:$offsreg);
90 // t_addrmode_s4 := reg + reg
93 def t_addrmode_s4 : Operand<i32>,
94 ComplexPattern<i32, 3, "SelectThumbAddrModeS4", []> {
95 string EncoderMethod = "getAddrModeS4OpValue";
96 let PrintMethod = "printThumbAddrModeS4Operand";
97 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
98 let ParserMatchClass = MemModeThumbAsmOperand;
101 // t_addrmode_s2 := reg + reg
104 def t_addrmode_s2 : Operand<i32>,
105 ComplexPattern<i32, 3, "SelectThumbAddrModeS2", []> {
106 let PrintMethod = "printThumbAddrModeS2Operand";
107 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
110 // t_addrmode_s1 := reg + reg
113 def t_addrmode_s1 : Operand<i32>,
114 ComplexPattern<i32, 3, "SelectThumbAddrModeS1", []> {
115 let PrintMethod = "printThumbAddrModeS1Operand";
116 let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
119 // t_addrmode_sp := sp + imm8 * 4
121 def t_addrmode_sp : Operand<i32>,
122 ComplexPattern<i32, 2, "SelectThumbAddrModeSP", []> {
123 let PrintMethod = "printThumbAddrModeSPOperand";
124 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
127 //===----------------------------------------------------------------------===//
128 // Miscellaneous Instructions.
131 // FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
132 // from removing one half of the matched pairs. That breaks PEI, which assumes
133 // these will always be in pairs, and asserts if it finds otherwise. Better way?
134 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
135 def tADJCALLSTACKUP :
136 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2), NoItinerary,
137 [(ARMcallseq_end imm:$amt1, imm:$amt2)]>,
138 Requires<[IsThumb, IsThumb1Only]>;
140 def tADJCALLSTACKDOWN :
141 PseudoInst<(outs), (ins i32imm:$amt), NoItinerary,
142 [(ARMcallseq_start imm:$amt)]>,
143 Requires<[IsThumb, IsThumb1Only]>;
146 // T1Disassembly - A simple class to make encoding some disassembly patterns
147 // easier and less verbose.
148 class T1Disassembly<bits<2> op1, bits<8> op2>
149 : T1Encoding<0b101111> {
154 def tNOP : T1pI<(outs), (ins), NoItinerary, "nop", "",
155 [/* For disassembly only; pattern left blank */]>,
156 T1Disassembly<0b11, 0x00>; // A8.6.110
158 def tYIELD : T1pI<(outs), (ins), NoItinerary, "yield", "",
159 [/* For disassembly only; pattern left blank */]>,
160 T1Disassembly<0b11, 0x10>; // A8.6.410
162 def tWFE : T1pI<(outs), (ins), NoItinerary, "wfe", "",
163 [/* For disassembly only; pattern left blank */]>,
164 T1Disassembly<0b11, 0x20>; // A8.6.408
166 def tWFI : T1pI<(outs), (ins), NoItinerary, "wfi", "",
167 [/* For disassembly only; pattern left blank */]>,
168 T1Disassembly<0b11, 0x30>; // A8.6.409
170 def tSEV : T1pI<(outs), (ins), NoItinerary, "sev", "",
171 [/* For disassembly only; pattern left blank */]>,
172 T1Disassembly<0b11, 0x40>; // A8.6.157
174 // The i32imm operand $val can be used by a debugger to store more information
175 // about the breakpoint.
176 def tBKPT : T1I<(outs), (ins i32imm:$val), NoItinerary, "bkpt\t$val",
177 [/* For disassembly only; pattern left blank */]>,
178 T1Disassembly<0b10, {?,?,?,?,?,?,?,?}> {
184 def tSETENDBE : T1I<(outs), (ins), NoItinerary, "setend\tbe",
185 [/* For disassembly only; pattern left blank */]>,
186 T1Encoding<0b101101> {
188 let Inst{9-5} = 0b10010;
190 let Inst{3} = 1; // Big-Endian
191 let Inst{2-0} = 0b000;
194 def tSETENDLE : T1I<(outs), (ins), NoItinerary, "setend\tle",
195 [/* For disassembly only; pattern left blank */]>,
196 T1Encoding<0b101101> {
198 let Inst{9-5} = 0b10010;
200 let Inst{3} = 0; // Little-Endian
201 let Inst{2-0} = 0b000;
204 // Change Processor State is a system instruction -- for disassembly only.
205 // The singleton $opt operand contains the following information:
206 // opt{4-0} = mode ==> don't care
207 // opt{5} = changemode ==> 0 (false for 16-bit Thumb instr)
208 // opt{8-6} = AIF from Inst{2-0}
209 // opt{10-9} = 1:imod from Inst{4} with 0b10 as enable and 0b11 as disable
211 // The opt{4-0} and opt{5} sub-fields are to accommodate 32-bit Thumb and ARM
212 // CPS which has more options.
213 def tCPS : T1I<(outs), (ins cps_opt:$opt), NoItinerary, "cps$opt",
214 [/* For disassembly only; pattern left blank */]>,
218 // FIXME: Finish encoding.
221 // For both thumb1 and thumb2.
222 let isNotDuplicable = 1, isCodeGenOnly = 1 in
223 def tPICADD : TIt<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp), IIC_iALUr, "",
224 [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>,
225 T1Special<{0,0,?,?}> {
228 let Inst{6-3} = 0b1111; // Rm = pc
232 // PC relative add (ADR).
233 def tADDrPCi : T1I<(outs tGPR:$dst), (ins t_imm_s4:$rhs), IIC_iALUi,
234 "add\t$dst, pc, $rhs", []>,
235 T1Encoding<{1,0,1,0,0,?}> {
239 let Inst{10-8} = dst;
243 // ADD <Rd>, sp, #<imm8>
244 // This is rematerializable, which is particularly useful for taking the
245 // address of locals.
246 let isReMaterializable = 1 in
247 def tADDrSPi : T1I<(outs tGPR:$dst), (ins GPR:$sp, t_imm_s4:$rhs), IIC_iALUi,
248 "add\t$dst, $sp, $rhs", []>,
249 T1Encoding<{1,0,1,0,1,?}> {
253 let Inst{10-8} = dst;
257 // ADD sp, sp, #<imm7>
258 def tADDspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
259 "add\t$dst, $rhs", []>,
260 T1Misc<{0,0,0,0,0,?,?}> {
266 // SUB sp, sp, #<imm7>
267 // FIXME: The encoding and the ASM string don't match up.
268 def tSUBspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
269 "sub\t$dst, $rhs", []>,
270 T1Misc<{0,0,0,0,1,?,?}> {
277 def tADDrSP : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
278 "add\t$dst, $rhs", []>,
279 T1Special<{0,0,?,?}> {
280 // A8.6.9 Encoding T1
282 let Inst{7} = dst{3};
283 let Inst{6-3} = 0b1101;
284 let Inst{2-0} = dst{2-0};
288 def tADDspr : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
289 "add\t$dst, $rhs", []>,
290 T1Special<{0,0,?,?}> {
291 // A8.6.9 Encoding T2
295 let Inst{2-0} = 0b101;
298 //===----------------------------------------------------------------------===//
299 // Control Flow Instructions.
302 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
303 def tBX_RET : TI<(outs), (ins), IIC_Br, "bx\tlr",
305 T1Special<{1,1,0,?}> {
307 let Inst{6-3} = 0b1110; // Rm = lr
308 let Inst{2-0} = 0b000;
311 // Alternative return instruction used by vararg functions.
312 def tBX_RET_vararg : TI<(outs), (ins tGPR:$Rm),
315 T1Special<{1,1,0,?}> {
319 let Inst{2-0} = 0b000;
324 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
325 def tBRIND : TI<(outs), (ins GPR:$Rm), IIC_Br, "mov\tpc, $Rm",
327 T1Special<{1,0,?,?}> {
330 let Inst{7} = 1; // <Rd> = Inst{7:2-0} = pc
332 let Inst{2-0} = 0b111;
336 // FIXME: remove when we have a way to marking a MI with these properties.
337 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
338 hasExtraDefRegAllocReq = 1 in
339 def tPOP_RET : T1I<(outs), (ins pred:$p, reglist:$regs, variable_ops),
341 "pop${p}\t$regs", []>,
342 T1Misc<{1,1,0,?,?,?,?}> {
345 let Inst{8} = regs{15}; // registers = P:'0000000':register_list
346 let Inst{7-0} = regs{7-0};
349 // All calls clobber the non-callee saved registers. SP is marked as
350 // a use to prevent stack-pointer assignments that appear immediately
351 // before calls from potentially appearing dead.
353 // On non-Darwin platforms R9 is callee-saved.
354 Defs = [R0, R1, R2, R3, R12, LR,
355 D0, D1, D2, D3, D4, D5, D6, D7,
356 D16, D17, D18, D19, D20, D21, D22, D23,
357 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR],
359 // Also used for Thumb2
360 def tBL : TIx2<0b11110, 0b11, 1,
361 (outs), (ins i32imm:$func, variable_ops), IIC_Br,
363 [(ARMtcall tglobaladdr:$func)]>,
364 Requires<[IsThumb, IsNotDarwin]>;
366 // ARMv5T and above, also used for Thumb2
367 def tBLXi : TIx2<0b11110, 0b11, 0,
368 (outs), (ins i32imm:$func, variable_ops), IIC_Br,
370 [(ARMcall tglobaladdr:$func)]>,
371 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
373 // Also used for Thumb2
374 def tBLXr : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
376 [(ARMtcall GPR:$func)]>,
377 Requires<[IsThumb, HasV5T, IsNotDarwin]>,
378 T1Special<{1,1,1,?}>; // A6.2.3 & A8.6.24;
381 let isCodeGenOnly = 1 in
382 def tBX : TIx2<{?,?,?,?,?}, {?,?}, ?,
383 (outs), (ins tGPR:$func, variable_ops), IIC_Br,
384 "mov\tlr, pc\n\tbx\t$func",
385 [(ARMcall_nolink tGPR:$func)]>,
386 Requires<[IsThumb, IsThumb1Only, IsNotDarwin]>;
390 // On Darwin R9 is call-clobbered.
391 // R7 is marked as a use to prevent frame-pointer assignments from being
392 // moved above / below calls.
393 Defs = [R0, R1, R2, R3, R9, R12, LR,
394 D0, D1, D2, D3, D4, D5, D6, D7,
395 D16, D17, D18, D19, D20, D21, D22, D23,
396 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR],
398 // Also used for Thumb2
399 def tBLr9 : TIx2<0b11110, 0b11, 1,
400 (outs), (ins pred:$p, i32imm:$func, variable_ops), IIC_Br,
402 [(ARMtcall tglobaladdr:$func)]>,
403 Requires<[IsThumb, IsDarwin]>;
405 // ARMv5T and above, also used for Thumb2
406 def tBLXi_r9 : TIx2<0b11110, 0b11, 0,
407 (outs), (ins pred:$p, i32imm:$func, variable_ops), IIC_Br,
409 [(ARMcall tglobaladdr:$func)]>,
410 Requires<[IsThumb, HasV5T, IsDarwin]>;
412 // Also used for Thumb2
413 def tBLXr_r9 : TI<(outs), (ins pred:$p, GPR:$func, variable_ops), IIC_Br,
415 [(ARMtcall GPR:$func)]>,
416 Requires<[IsThumb, HasV5T, IsDarwin]>,
417 T1Special<{1,1,1,?}> {
420 let Inst{6-3} = func;
421 let Inst{2-0} = 0b000;
425 let isCodeGenOnly = 1 in
426 def tBXr9 : TIx2<{?,?,?,?,?}, {?,?}, ?,
427 (outs), (ins tGPR:$func, variable_ops), IIC_Br,
428 "mov\tlr, pc\n\tbx\t$func",
429 [(ARMcall_nolink tGPR:$func)]>,
430 Requires<[IsThumb, IsThumb1Only, IsDarwin]>;
433 let isBranch = 1, isTerminator = 1 in {
434 let isBarrier = 1 in {
435 let isPredicable = 1 in
436 def tB : T1I<(outs), (ins brtarget:$target), IIC_Br,
437 "b\t$target", [(br bb:$target)]>,
438 T1Encoding<{1,1,1,0,0,?}>;
442 def tBfar : TIx2<0b11110, 0b11, 1, (outs), (ins brtarget:$target), IIC_Br,
445 def tBR_JTr : tPseudoInst<(outs),
446 (ins tGPR:$target, i32imm:$jt, i32imm:$id),
448 [(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]> {
449 list<Predicate> Predicates = [IsThumb, IsThumb1Only];
454 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
455 // a two-value operand where a dag node expects two operands. :(
456 let isBranch = 1, isTerminator = 1 in
457 def tBcc : T1I<(outs), (ins brtarget:$target, pred:$cc), IIC_Br,
459 [/*(ARMbrcond bb:$target, imm:$cc)*/]>,
460 T1Encoding<{1,1,0,1,?,?}>;
462 // Compare and branch on zero / non-zero
463 let isBranch = 1, isTerminator = 1 in {
464 def tCBZ : T1I<(outs), (ins tGPR:$Rn, brtarget:$target), IIC_Br,
465 "cbz\t$Rn, $target", []>,
466 T1Misc<{0,0,?,1,?,?,?}> {
470 let Inst{9} = target{5};
471 let Inst{7-3} = target{4-0};
475 def tCBNZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
476 "cbnz\t$cmp, $target", []>,
477 T1Misc<{1,0,?,1,?,?,?}> {
481 let Inst{9} = target{5};
482 let Inst{7-3} = target{4-0};
487 // A8.6.218 Supervisor Call (Software Interrupt) -- for disassembly only
488 // A8.6.16 B: Encoding T1
489 // If Inst{11-8} == 0b1111 then SEE SVC
490 let isCall = 1, Uses = [SP] in
491 def tSVC : T1pI<(outs), (ins i32imm:$imm), IIC_Br,
492 "svc", "\t$imm", []>, Encoding16 {
494 let Inst{15-12} = 0b1101;
495 let Inst{11-8} = 0b1111;
499 // The assembler uses 0xDEFE for a trap instruction.
500 let isBarrier = 1, isTerminator = 1 in
501 def tTRAP : TI<(outs), (ins), IIC_Br,
502 "trap", [(trap)]>, Encoding16 {
506 //===----------------------------------------------------------------------===//
507 // Load Store Instructions.
510 let canFoldAsLoad = 1, isReMaterializable = 1 in
511 def tLDR : T1pI4<(outs tGPR:$Rt), (ins t_addrmode_s4:$addr), IIC_iLoad_r,
512 "ldr", "\t$Rt, $addr",
513 [(set tGPR:$Rt, (load t_addrmode_s4:$addr))]>,
518 let Inst{8-6} = addr{5-3}; // Rm
519 let Inst{5-3} = addr{2-0}; // Rn
523 def tLDRi: T1pI4<(outs tGPR:$Rt), (ins t_addrmode_s4:$addr), IIC_iLoad_r,
524 "ldr", "\t$Rt, $addr",
526 T1LdSt4Imm<{1,?,?}> {
530 let Inst{10-6} = addr{7-3}; // imm5
531 let Inst{5-3} = addr{2-0}; // Rn
535 def tLDRB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoad_bh_r,
536 "ldrb", "\t$dst, $addr",
537 [(set tGPR:$dst, (zextloadi8 t_addrmode_s1:$addr))]>,
539 def tLDRBi: T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoad_bh_r,
540 "ldrb", "\t$dst, $addr",
544 def tLDRH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoad_bh_r,
545 "ldrh", "\t$dst, $addr",
546 [(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>,
548 def tLDRHi: T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoad_bh_r,
549 "ldrh", "\t$dst, $addr",
553 let AddedComplexity = 10 in
554 def tLDRSB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoad_bh_r,
555 "ldrsb", "\t$dst, $addr",
556 [(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>,
559 let AddedComplexity = 10 in
560 def tLDRSH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoad_bh_r,
561 "ldrsh", "\t$dst, $addr",
562 [(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>,
565 let canFoldAsLoad = 1 in
566 def tLDRspi : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoad_i,
567 "ldr", "\t$dst, $addr",
568 [(set tGPR:$dst, (load t_addrmode_sp:$addr))]>,
571 // Special instruction for restore. It cannot clobber condition register
572 // when it's expanded by eliminateCallFramePseudoInstr().
573 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1 in
574 def tRestore : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoad_i,
575 "ldr", "\t$dst, $addr", []>,
579 // FIXME: Use ldr.n to work around a Darwin assembler bug.
580 let canFoldAsLoad = 1, isReMaterializable = 1 in
581 def tLDRpci : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoad_i,
582 "ldr", ".n\t$dst, $addr",
583 [(set tGPR:$dst, (load (ARMWrapper tconstpool:$addr)))]>,
584 T1Encoding<{0,1,0,0,1,?}>; // A6.2 & A8.6.59
586 // Special LDR for loads from non-pc-relative constpools.
587 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
588 isReMaterializable = 1 in
589 def tLDRcp : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoad_i,
590 "ldr", "\t$dst, $addr", []>,
593 def tSTR : T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStore_r,
594 "str", "\t$src, $addr",
595 [(store tGPR:$src, t_addrmode_s4:$addr)]>,
597 def tSTRi: T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStore_r,
598 "str", "\t$src, $addr",
602 def tSTRB : T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStore_bh_r,
603 "strb", "\t$src, $addr",
604 [(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>,
606 def tSTRBi: T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStore_bh_r,
607 "strb", "\t$src, $addr",
611 def tSTRH : T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStore_bh_r,
612 "strh", "\t$src, $addr",
613 [(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>,
615 def tSTRHi: T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStore_bh_r,
616 "strh", "\t$src, $addr",
620 def tSTRspi : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStore_i,
621 "str", "\t$src, $addr",
622 [(store tGPR:$src, t_addrmode_sp:$addr)]>,
625 let mayStore = 1, neverHasSideEffects = 1 in {
626 // Special instruction for spill. It cannot clobber condition register
627 // when it's expanded by eliminateCallFramePseudoInstr().
628 def tSpill : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStore_i,
629 "str", "\t$src, $addr", []>,
633 //===----------------------------------------------------------------------===//
634 // Load / store multiple Instructions.
637 multiclass thumb_ldst_mult<string asm, InstrItinClass itin,
638 InstrItinClass itin_upd, bits<6> T1Enc,
641 T1I<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
642 itin, !strconcat(asm, "ia${p}\t$Rn, $regs"), []>,
647 let Inst{7-0} = regs;
650 T1It<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
651 itin_upd, !strconcat(asm, "ia${p}\t$Rn!, $regs"), "$Rn = $wb", []>,
656 let Inst{7-0} = regs;
660 // These require base address to be written back or one of the loaded regs.
661 let neverHasSideEffects = 1 in {
663 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
664 defm tLDM : thumb_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu,
667 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
668 defm tSTM : thumb_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu,
671 } // neverHasSideEffects
673 let mayLoad = 1, Uses = [SP], Defs = [SP], hasExtraDefRegAllocReq = 1 in
674 def tPOP : T1I<(outs), (ins pred:$p, reglist:$regs, variable_ops),
676 "pop${p}\t$regs", []>,
677 T1Misc<{1,1,0,?,?,?,?}> {
679 let Inst{8} = regs{15};
680 let Inst{7-0} = regs{7-0};
683 let mayStore = 1, Uses = [SP], Defs = [SP], hasExtraSrcRegAllocReq = 1 in
684 def tPUSH : T1I<(outs), (ins pred:$p, reglist:$regs, variable_ops),
686 "push${p}\t$regs", []>,
687 T1Misc<{0,1,0,?,?,?,?}> {
689 let Inst{8} = regs{14};
690 let Inst{7-0} = regs{7-0};
693 //===----------------------------------------------------------------------===//
694 // Arithmetic Instructions.
697 // Add with carry register
698 let isCommutable = 1, Uses = [CPSR] in
699 def tADC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
700 "adc", "\t$dst, $rhs",
701 [(set tGPR:$dst, (adde tGPR:$lhs, tGPR:$rhs))]>,
702 T1DataProcessing<0b0101> {
711 def tADDi3 : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rn, i32imm:$imm3), IIC_iALUi,
712 "add", "\t$Rd, $Rn, $imm3",
713 [(set tGPR:$Rd, (add tGPR:$Rn, imm0_7:$imm3))]>,
719 let Inst{8-6} = imm3;
724 def tADDi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
725 "add", "\t$dst, $rhs",
726 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255:$rhs))]>,
727 T1General<{1,1,0,?,?}> {
731 let Inst{10-8} = lhs;
736 let isCommutable = 1 in
737 def tADDrr : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rn, tGPR:$Rm), IIC_iALUr,
738 "add", "\t$Rd, $Rn, $Rm",
739 [(set tGPR:$Rd, (add tGPR:$Rn, tGPR:$Rm))]>,
750 let neverHasSideEffects = 1 in
751 def tADDhirr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
752 "add", "\t$dst, $rhs", []>,
753 T1Special<{0,0,?,?}> {
758 let Inst{7} = dst{3};
759 let Inst{2-0} = dst{2-0};
763 let isCommutable = 1 in
764 def tAND : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
765 "and", "\t$dst, $rhs",
766 [(set tGPR:$dst, (and tGPR:$lhs, tGPR:$rhs))]>,
767 T1DataProcessing<0b0000> {
776 def tASRri : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm5), IIC_iMOVsi,
777 "asr", "\t$Rd, $Rm, $imm5",
778 [(set tGPR:$Rd, (sra tGPR:$Rm, (i32 imm:$imm5)))]>,
779 T1General<{0,1,0,?,?}> {
784 let Inst{10-6} = imm5;
790 def tASRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
791 "asr", "\t$dst, $rhs",
792 [(set tGPR:$dst, (sra tGPR:$lhs, tGPR:$rhs))]>,
793 T1DataProcessing<0b0100> {
802 def tBIC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
803 "bic", "\t$dst, $rhs",
804 [(set tGPR:$dst, (and tGPR:$lhs, (not tGPR:$rhs)))]>,
805 T1DataProcessing<0b1110> {
814 let isCompare = 1, Defs = [CPSR] in {
815 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
816 // Compare-to-zero still works out, just not the relationals
817 //def tCMN : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
818 // "cmn", "\t$lhs, $rhs",
819 // [(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>,
820 // T1DataProcessing<0b1011>;
821 def tCMNz : T1pI<(outs), (ins tGPR:$Rn, tGPR:$Rm), IIC_iCMPr,
823 [(ARMcmpZ tGPR:$Rn, (ineg tGPR:$Rm))]>,
824 T1DataProcessing<0b1011> {
834 let isCompare = 1, Defs = [CPSR] in {
835 def tCMPi8 : T1pI<(outs), (ins tGPR:$Rn, i32imm:$imm8), IIC_iCMPi,
836 "cmp", "\t$Rn, $imm8",
837 [(ARMcmp tGPR:$Rn, imm0_255:$imm8)]>,
838 T1General<{1,0,1,?,?}> {
843 let Inst{7-0} = imm8;
846 def tCMPzi8 : T1pI<(outs), (ins tGPR:$Rn, i32imm:$imm8), IIC_iCMPi,
847 "cmp", "\t$Rn, $imm8",
848 [(ARMcmpZ tGPR:$Rn, imm0_255:$imm8)]>,
849 T1General<{1,0,1,?,?}> {
853 let Inst{7-0} = 0x00;
857 def tCMPr : T1pI<(outs), (ins tGPR:$Rn, tGPR:$Rm), IIC_iCMPr,
859 [(ARMcmp tGPR:$Rn, tGPR:$Rm)]>,
860 T1DataProcessing<0b1010> {
867 def tCMPzr : T1pI<(outs), (ins tGPR:$Rn, tGPR:$Rm), IIC_iCMPr,
869 [(ARMcmpZ tGPR:$Rn, tGPR:$Rm)]>,
870 T1DataProcessing<0b1010> {
878 def tCMPhir : T1pI<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_iCMPr,
879 "cmp", "\t$Rn, $Rm", []>,
880 T1Special<{0,1,?,?}> {
886 let Inst{2-0} = Rn{2-0};
888 def tCMPzhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
889 "cmp", "\t$lhs, $rhs", []>,
890 T1Special<{0,1,?,?}> {
896 let Inst{2-0} = Rn{2-0};
899 } // isCompare = 1, Defs = [CPSR]
903 let isCommutable = 1 in
904 def tEOR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
905 "eor", "\t$dst, $rhs",
906 [(set tGPR:$dst, (xor tGPR:$lhs, tGPR:$rhs))]>,
907 T1DataProcessing<0b0001> {
916 def tLSLri : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm5), IIC_iMOVsi,
917 "lsl", "\t$Rd, $Rm, $imm5",
918 [(set tGPR:$Rd, (shl tGPR:$Rm, (i32 imm:$imm5)))]>,
919 T1General<{0,0,0,?,?}> {
924 let Inst{10-6} = imm5;
930 def tLSLrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
931 "lsl", "\t$dst, $rhs",
932 [(set tGPR:$dst, (shl tGPR:$lhs, tGPR:$rhs))]>,
933 T1DataProcessing<0b0010> {
942 def tLSRri : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm5), IIC_iMOVsi,
943 "lsr", "\t$Rd, $Rm, $imm5",
944 [(set tGPR:$Rd, (srl tGPR:$Rm, (i32 imm:$imm5)))]>,
945 T1General<{0,0,1,?,?}> {
950 let Inst{10-6} = imm5;
956 def tLSRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
957 "lsr", "\t$dst, $rhs",
958 [(set tGPR:$dst, (srl tGPR:$lhs, tGPR:$rhs))]>,
959 T1DataProcessing<0b0011> {
969 def tMOVi8 : T1sI<(outs tGPR:$Rd), (ins i32imm:$imm8), IIC_iMOVi,
970 "mov", "\t$Rd, $imm8",
971 [(set tGPR:$Rd, imm0_255:$imm8)]>,
972 T1General<{1,0,0,?,?}> {
977 let Inst{7-0} = imm8;
980 // TODO: A7-73: MOV(2) - mov setting flag.
982 let neverHasSideEffects = 1 in {
983 // FIXME: Make this predicable.
984 def tMOVr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
985 "mov\t$dst, $src", []>,
988 def tMOVSr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
989 "movs\t$dst, $src", []>, Encoding16 {
990 let Inst{15-6} = 0b0000000000;
993 // FIXME: Make these predicable.
994 def tMOVgpr2tgpr : T1I<(outs tGPR:$dst), (ins GPR:$src), IIC_iMOVr,
995 "mov\t$dst, $src", []>,
996 T1Special<{1,0,0,?}>;
997 def tMOVtgpr2gpr : T1I<(outs GPR:$dst), (ins tGPR:$src), IIC_iMOVr,
998 "mov\t$dst, $src", []>,
999 T1Special<{1,0,?,0}>;
1000 def tMOVgpr2gpr : T1I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
1001 "mov\t$dst, $src", []>,
1002 T1Special<{1,0,?,?}>;
1003 } // neverHasSideEffects
1005 // multiply register
1006 let isCommutable = 1 in
1007 def tMUL : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMUL32,
1008 "mul", "\t$dst, $rhs, $dst", /* A8.6.105 MUL Encoding T1 */
1009 [(set tGPR:$dst, (mul tGPR:$lhs, tGPR:$rhs))]>,
1010 T1DataProcessing<0b1101> {
1014 let Inst{5-3} = rhs;
1015 let Inst{2-0} = dst;
1018 // move inverse register
1019 def tMVN : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iMVNr,
1020 "mvn", "\t$Rd, $Rm",
1021 [(set tGPR:$Rd, (not tGPR:$Rm))]>,
1022 T1DataProcessing<0b1111> {
1030 // Bitwise or register
1031 let isCommutable = 1 in
1032 def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
1033 "orr", "\t$dst, $rhs",
1034 [(set tGPR:$dst, (or tGPR:$lhs, tGPR:$rhs))]>,
1035 T1DataProcessing<0b1100> {
1039 let Inst{5-3} = rhs;
1040 let Inst{2-0} = dst;
1044 def tREV : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1045 "rev", "\t$Rd, $Rm",
1046 [(set tGPR:$Rd, (bswap tGPR:$Rm))]>,
1047 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1048 T1Misc<{1,0,1,0,0,0,?}> {
1056 def tREV16 : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1057 "rev16", "\t$Rd, $Rm",
1059 (or (and (srl tGPR:$Rm, (i32 8)), 0xFF),
1060 (or (and (shl tGPR:$Rm, (i32 8)), 0xFF00),
1061 (or (and (srl tGPR:$Rm, (i32 8)), 0xFF0000),
1062 (and (shl tGPR:$Rm, (i32 8)), 0xFF000000)))))]>,
1063 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1064 T1Misc<{1,0,1,0,0,1,?}> {
1072 def tREVSH : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1073 "revsh", "\t$Rd, $Rm",
1076 (or (srl (and tGPR:$Rm, 0xFF00), (i32 8)),
1077 (shl tGPR:$Rm, (i32 8))), i16))]>,
1078 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1079 T1Misc<{1,0,1,0,1,1,?}> {
1087 // rotate right register
1088 def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
1089 "ror", "\t$dst, $rhs",
1090 [(set tGPR:$dst, (rotr tGPR:$lhs, tGPR:$rhs))]>,
1091 T1DataProcessing<0b0111> {
1095 let Inst{5-3} = rhs;
1096 let Inst{2-0} = dst;
1100 def tRSB : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rn), IIC_iALUi,
1101 "rsb", "\t$Rd, $Rn, #0",
1102 [(set tGPR:$Rd, (ineg tGPR:$Rn))]>,
1103 T1DataProcessing<0b1001> {
1111 // Subtract with carry register
1112 let Uses = [CPSR] in
1113 def tSBC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
1114 "sbc", "\t$dst, $rhs",
1115 [(set tGPR:$dst, (sube tGPR:$lhs, tGPR:$rhs))]>,
1116 T1DataProcessing<0b0110> {
1120 let Inst{5-3} = rhs;
1121 let Inst{2-0} = dst;
1124 // Subtract immediate
1125 def tSUBi3 : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rn, i32imm:$imm3), IIC_iALUi,
1126 "sub", "\t$Rd, $Rn, $imm3",
1127 [(set tGPR:$Rd, (add tGPR:$Rn, imm0_7_neg:$imm3))]>,
1128 T1General<0b01111> {
1133 let Inst{8-6} = imm3;
1138 def tSUBi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
1139 "sub", "\t$dst, $rhs",
1140 [(set tGPR:$dst, (add tGPR:$lhs, imm8_255_neg:$rhs))]>,
1141 T1General<{1,1,1,?,?}> {
1145 let Inst{10-8} = dst;
1146 let Inst{7-0} = rhs;
1149 // subtract register
1150 def tSUBrr : T1sI<(outs tGPR:$Rd), (ins tGPR:$Rn, tGPR:$Rm), IIC_iALUr,
1151 "sub", "\t$Rd, $Rn, $Rm",
1152 [(set tGPR:$Rd, (sub tGPR:$Rn, tGPR:$Rm))]>,
1153 T1General<0b01101> {
1163 // TODO: A7-96: STMIA - store multiple.
1166 def tSXTB : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1167 "sxtb", "\t$Rd, $Rm",
1168 [(set tGPR:$Rd, (sext_inreg tGPR:$Rm, i8))]>,
1169 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1170 T1Misc<{0,0,1,0,0,1,?}> {
1178 // sign-extend short
1179 def tSXTH : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1180 "sxth", "\t$Rd, $Rm",
1181 [(set tGPR:$Rd, (sext_inreg tGPR:$Rm, i16))]>,
1182 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1183 T1Misc<{0,0,1,0,0,0,?}> {
1192 let isCompare = 1, isCommutable = 1, Defs = [CPSR] in
1193 def tTST : T1pI<(outs), (ins tGPR:$Rn, tGPR:$Rm), IIC_iTSTr,
1194 "tst", "\t$Rn, $Rm",
1195 [(ARMcmpZ (and_su tGPR:$Rn, tGPR:$Rm), 0)]>,
1196 T1DataProcessing<0b1000> {
1205 def tUXTB : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1206 "uxtb", "\t$Rd, $Rm",
1207 [(set tGPR:$Rd, (and tGPR:$Rm, 0xFF))]>,
1208 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1209 T1Misc<{0,0,1,0,1,1,?}> {
1217 // zero-extend short
1218 def tUXTH : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr,
1219 "uxth", "\t$Rd, $Rm",
1220 [(set tGPR:$Rd, (and tGPR:$Rm, 0xFFFF))]>,
1221 Requires<[IsThumb, IsThumb1Only, HasV6]>,
1222 T1Misc<{0,0,1,0,1,0,?}> {
1231 // Conditional move tMOVCCr - Used to implement the Thumb SELECT_CC operation.
1232 // Expanded after instruction selection into a branch sequence.
1233 let usesCustomInserter = 1 in // Expanded after instruction selection.
1234 def tMOVCCr_pseudo :
1235 PseudoInst<(outs tGPR:$dst), (ins tGPR:$false, tGPR:$true, pred:$cc),
1237 [/*(set tGPR:$dst, (ARMcmov tGPR:$false, tGPR:$true, imm:$cc))*/]>;
1240 // 16-bit movcc in IT blocks for Thumb2.
1241 let neverHasSideEffects = 1 in {
1242 def tMOVCCr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iCMOVr,
1243 "mov", "\t$dst, $rhs", []>,
1244 T1Special<{1,0,?,?}> {
1247 let Inst{7} = dst{3};
1248 let Inst{6-3} = rhs;
1249 let Inst{2-0} = dst{2-0};
1252 let isMoveImm = 1 in
1253 def tMOVCCi : T1pIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMOVi,
1254 "mov", "\t$dst, $rhs", []>,
1255 T1General<{1,0,0,?,?}> {
1258 let Inst{10-8} = dst;
1259 let Inst{7-0} = rhs;
1262 } // neverHasSideEffects
1264 // tLEApcrel - Load a pc-relative address into a register without offending the
1266 let neverHasSideEffects = 1, isReMaterializable = 1 in
1267 def tLEApcrel : T1I<(outs tGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
1268 "adr${p}\t$Rd, #$label", []>,
1269 T1Encoding<{1,0,1,0,0,?}> {
1272 let Inst{10-8} = Rd;
1273 // FIXME: Add label encoding/fixup
1276 def tLEApcrelJT : T1I<(outs tGPR:$Rd),
1277 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1278 IIC_iALUi, "adr${p}\t$Rd, #${label}_${id}", []>,
1279 T1Encoding<{1,0,1,0,0,?}> {
1282 let Inst{10-8} = Rd;
1283 // FIXME: Add label encoding/fixup
1286 //===----------------------------------------------------------------------===//
1290 // __aeabi_read_tp preserves the registers r1-r3.
1291 let isCall = 1, Defs = [R0, LR], Uses = [SP] in
1292 def tTPsoft : TIx2<0b11110, 0b11, 1, (outs), (ins), IIC_Br,
1293 "bl\t__aeabi_read_tp",
1294 [(set R0, ARMthread_pointer)]> {
1295 // Encoding is 0xf7fffffe.
1296 let Inst = 0xf7fffffe;
1299 // SJLJ Exception handling intrinsics
1300 // eh_sjlj_setjmp() is an instruction sequence to store the return
1301 // address and save #0 in R0 for the non-longjmp case.
1302 // Since by its nature we may be coming from some other function to get
1303 // here, and we're using the stack frame for the containing function to
1304 // save/restore registers, we can't keep anything live in regs across
1305 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
1306 // when we get here from a longjmp(). We force everthing out of registers
1307 // except for our own input by listing the relevant registers in Defs. By
1308 // doing so, we also cause the prologue/epilogue code to actively preserve
1309 // all of the callee-saved resgisters, which is exactly what we want.
1310 // $val is a scratch register for our use.
1311 let Defs = [ R0, R1, R2, R3, R4, R5, R6, R7, R12 ],
1312 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in
1313 def tInt_eh_sjlj_setjmp : ThumbXI<(outs),(ins tGPR:$src, tGPR:$val),
1314 AddrModeNone, SizeSpecial, NoItinerary, "","",
1315 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>;
1317 // FIXME: Non-Darwin version(s)
1318 let isBarrier = 1, hasSideEffects = 1, isTerminator = 1, isCodeGenOnly = 1,
1319 Defs = [ R7, LR, SP ] in
1320 def tInt_eh_sjlj_longjmp : XI<(outs), (ins GPR:$src, GPR:$scratch),
1321 AddrModeNone, SizeSpecial, IndexModeNone,
1322 Pseudo, NoItinerary, "", "",
1323 [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
1324 Requires<[IsThumb, IsDarwin]>;
1326 //===----------------------------------------------------------------------===//
1327 // Non-Instruction Patterns
1331 def : T1Pat<(addc tGPR:$lhs, imm0_7:$rhs),
1332 (tADDi3 tGPR:$lhs, imm0_7:$rhs)>;
1333 def : T1Pat<(addc tGPR:$lhs, imm8_255:$rhs),
1334 (tADDi8 tGPR:$lhs, imm8_255:$rhs)>;
1335 def : T1Pat<(addc tGPR:$lhs, tGPR:$rhs),
1336 (tADDrr tGPR:$lhs, tGPR:$rhs)>;
1338 // Subtract with carry
1339 def : T1Pat<(addc tGPR:$lhs, imm0_7_neg:$rhs),
1340 (tSUBi3 tGPR:$lhs, imm0_7_neg:$rhs)>;
1341 def : T1Pat<(addc tGPR:$lhs, imm8_255_neg:$rhs),
1342 (tSUBi8 tGPR:$lhs, imm8_255_neg:$rhs)>;
1343 def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
1344 (tSUBrr tGPR:$lhs, tGPR:$rhs)>;
1346 // ConstantPool, GlobalAddress
1347 def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
1348 def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
1351 def : T1Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
1352 (tLEApcrelJT tjumptable:$dst, imm:$id)>;
1355 def : T1Pat<(ARMtcall texternalsym:$func), (tBL texternalsym:$func)>,
1356 Requires<[IsThumb, IsNotDarwin]>;
1357 def : T1Pat<(ARMtcall texternalsym:$func), (tBLr9 texternalsym:$func)>,
1358 Requires<[IsThumb, IsDarwin]>;
1360 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi texternalsym:$func)>,
1361 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
1362 def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi_r9 texternalsym:$func)>,
1363 Requires<[IsThumb, HasV5T, IsDarwin]>;
1365 // Indirect calls to ARM routines
1366 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr GPR:$dst)>,
1367 Requires<[IsThumb, HasV5T, IsNotDarwin]>;
1368 def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr_r9 GPR:$dst)>,
1369 Requires<[IsThumb, HasV5T, IsDarwin]>;
1371 // zextload i1 -> zextload i8
1372 def : T1Pat<(zextloadi1 t_addrmode_s1:$addr),
1373 (tLDRB t_addrmode_s1:$addr)>;
1375 // extload -> zextload
1376 def : T1Pat<(extloadi1 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
1377 def : T1Pat<(extloadi8 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
1378 def : T1Pat<(extloadi16 t_addrmode_s2:$addr), (tLDRH t_addrmode_s2:$addr)>;
1380 // If it's impossible to use [r,r] address mode for sextload, select to
1381 // ldr{b|h} + sxt{b|h} instead.
1382 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
1383 (tSXTB (tLDRB t_addrmode_s1:$addr))>,
1384 Requires<[IsThumb, IsThumb1Only, HasV6]>;
1385 def : T1Pat<(sextloadi16 t_addrmode_s2:$addr),
1386 (tSXTH (tLDRH t_addrmode_s2:$addr))>,
1387 Requires<[IsThumb, IsThumb1Only, HasV6]>;
1389 def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
1390 (tASRri (tLSLri (tLDRB t_addrmode_s1:$addr), 24), 24)>;
1391 def : T1Pat<(sextloadi16 t_addrmode_s1:$addr),
1392 (tASRri (tLSLri (tLDRH t_addrmode_s1:$addr), 16), 16)>;
1394 // Large immediate handling.
1397 def : T1Pat<(i32 thumb_immshifted:$src),
1398 (tLSLri (tMOVi8 (thumb_immshifted_val imm:$src)),
1399 (thumb_immshifted_shamt imm:$src))>;
1401 def : T1Pat<(i32 imm0_255_comp:$src),
1402 (tMVN (tMOVi8 (imm_comp_XFORM imm:$src)))>;
1404 // Pseudo instruction that combines ldr from constpool and add pc. This should
1405 // be expanded into two instructions late to allow if-conversion and
1407 let isReMaterializable = 1 in
1408 def tLDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
1410 [(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
1412 Requires<[IsThumb, IsThumb1Only]>;