1 //===-- ARMExpandPseudoInsts.cpp - Expand pseudo instructions -----*- C++ -*-=//
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 contains a pass that expands pseudo instructions into target
11 // instructions to allow proper scheduling, if-conversion, and other late
12 // optimizations. This pass should be run after register allocation but before
13 // the post-regalloc scheduling pass.
15 //===----------------------------------------------------------------------===//
17 #define DEBUG_TYPE "arm-pseudo"
19 #include "ARMAddressingModes.h"
20 #include "ARMBaseInstrInfo.h"
21 #include "ARMBaseRegisterInfo.h"
22 #include "ARMMachineFunctionInfo.h"
23 #include "ARMRegisterInfo.h"
24 #include "llvm/CodeGen/MachineFrameInfo.h"
25 #include "llvm/CodeGen/MachineFunctionPass.h"
26 #include "llvm/CodeGen/MachineInstrBuilder.h"
27 #include "llvm/Target/TargetFrameLowering.h"
28 #include "llvm/Target/TargetRegisterInfo.h"
29 #include "llvm/Support/raw_ostream.h" // FIXME: for debug only. remove!
33 class ARMExpandPseudo : public MachineFunctionPass {
36 ARMExpandPseudo() : MachineFunctionPass(ID) {}
38 const ARMBaseInstrInfo *TII;
39 const TargetRegisterInfo *TRI;
40 const ARMSubtarget *STI;
43 virtual bool runOnMachineFunction(MachineFunction &Fn);
45 virtual const char *getPassName() const {
46 return "ARM pseudo instruction expansion pass";
50 void TransferImpOps(MachineInstr &OldMI,
51 MachineInstrBuilder &UseMI, MachineInstrBuilder &DefMI);
52 bool ExpandMI(MachineBasicBlock &MBB,
53 MachineBasicBlock::iterator MBBI);
54 bool ExpandMBB(MachineBasicBlock &MBB);
55 void ExpandVLD(MachineBasicBlock::iterator &MBBI);
56 void ExpandVST(MachineBasicBlock::iterator &MBBI);
57 void ExpandLaneOp(MachineBasicBlock::iterator &MBBI);
58 void ExpandVTBL(MachineBasicBlock::iterator &MBBI,
59 unsigned Opc, bool IsExt, unsigned NumRegs);
60 void ExpandMOV32BitImm(MachineBasicBlock &MBB,
61 MachineBasicBlock::iterator &MBBI);
63 char ARMExpandPseudo::ID = 0;
66 /// TransferImpOps - Transfer implicit operands on the pseudo instruction to
67 /// the instructions created from the expansion.
68 void ARMExpandPseudo::TransferImpOps(MachineInstr &OldMI,
69 MachineInstrBuilder &UseMI,
70 MachineInstrBuilder &DefMI) {
71 const TargetInstrDesc &Desc = OldMI.getDesc();
72 for (unsigned i = Desc.getNumOperands(), e = OldMI.getNumOperands();
74 const MachineOperand &MO = OldMI.getOperand(i);
75 assert(MO.isReg() && MO.getReg());
84 // Constants for register spacing in NEON load/store instructions.
85 // For quad-register load-lane and store-lane pseudo instructors, the
86 // spacing is initially assumed to be EvenDblSpc, and that is changed to
87 // OddDblSpc depending on the lane number operand.
94 // Entries for NEON load/store information table. The table is sorted by
95 // PseudoOpc for fast binary-search lookups.
96 struct NEONLdStTableEntry {
101 NEONRegSpacing RegSpacing;
102 unsigned char NumRegs; // D registers loaded or stored
103 unsigned char RegElts; // elements per D register; used for lane ops
105 // Comparison methods for binary search of the table.
106 bool operator<(const NEONLdStTableEntry &TE) const {
107 return PseudoOpc < TE.PseudoOpc;
109 friend bool operator<(const NEONLdStTableEntry &TE, unsigned PseudoOpc) {
110 return TE.PseudoOpc < PseudoOpc;
112 friend bool LLVM_ATTRIBUTE_UNUSED operator<(unsigned PseudoOpc,
113 const NEONLdStTableEntry &TE) {
114 return PseudoOpc < TE.PseudoOpc;
119 static const NEONLdStTableEntry NEONLdStTable[] = {
120 { ARM::VLD1DUPq16Pseudo, ARM::VLD1DUPq16, true, false, SingleSpc, 2, 4},
121 { ARM::VLD1DUPq16Pseudo_UPD, ARM::VLD1DUPq16_UPD, true, true, SingleSpc, 2, 4},
122 { ARM::VLD1DUPq32Pseudo, ARM::VLD1DUPq32, true, false, SingleSpc, 2, 2},
123 { ARM::VLD1DUPq32Pseudo_UPD, ARM::VLD1DUPq32_UPD, true, true, SingleSpc, 2, 2},
124 { ARM::VLD1DUPq8Pseudo, ARM::VLD1DUPq8, true, false, SingleSpc, 2, 8},
125 { ARM::VLD1DUPq8Pseudo_UPD, ARM::VLD1DUPq8_UPD, true, true, SingleSpc, 2, 8},
127 { ARM::VLD1LNq16Pseudo, ARM::VLD1LNd16, true, false, EvenDblSpc, 1, 4 },
128 { ARM::VLD1LNq16Pseudo_UPD, ARM::VLD1LNd16_UPD, true, true, EvenDblSpc, 1, 4 },
129 { ARM::VLD1LNq32Pseudo, ARM::VLD1LNd32, true, false, EvenDblSpc, 1, 2 },
130 { ARM::VLD1LNq32Pseudo_UPD, ARM::VLD1LNd32_UPD, true, true, EvenDblSpc, 1, 2 },
131 { ARM::VLD1LNq8Pseudo, ARM::VLD1LNd8, true, false, EvenDblSpc, 1, 8 },
132 { ARM::VLD1LNq8Pseudo_UPD, ARM::VLD1LNd8_UPD, true, true, EvenDblSpc, 1, 8 },
134 { ARM::VLD1d64QPseudo, ARM::VLD1d64Q, true, false, SingleSpc, 4, 1 },
135 { ARM::VLD1d64QPseudo_UPD, ARM::VLD1d64Q_UPD, true, true, SingleSpc, 4, 1 },
136 { ARM::VLD1d64TPseudo, ARM::VLD1d64T, true, false, SingleSpc, 3, 1 },
137 { ARM::VLD1d64TPseudo_UPD, ARM::VLD1d64T_UPD, true, true, SingleSpc, 3, 1 },
139 { ARM::VLD1q16Pseudo, ARM::VLD1q16, true, false, SingleSpc, 2, 4 },
140 { ARM::VLD1q16Pseudo_UPD, ARM::VLD1q16_UPD, true, true, SingleSpc, 2, 4 },
141 { ARM::VLD1q32Pseudo, ARM::VLD1q32, true, false, SingleSpc, 2, 2 },
142 { ARM::VLD1q32Pseudo_UPD, ARM::VLD1q32_UPD, true, true, SingleSpc, 2, 2 },
143 { ARM::VLD1q64Pseudo, ARM::VLD1q64, true, false, SingleSpc, 2, 1 },
144 { ARM::VLD1q64Pseudo_UPD, ARM::VLD1q64_UPD, true, true, SingleSpc, 2, 1 },
145 { ARM::VLD1q8Pseudo, ARM::VLD1q8, true, false, SingleSpc, 2, 8 },
146 { ARM::VLD1q8Pseudo_UPD, ARM::VLD1q8_UPD, true, true, SingleSpc, 2, 8 },
148 { ARM::VLD2DUPd16Pseudo, ARM::VLD2DUPd16, true, false, SingleSpc, 2, 4},
149 { ARM::VLD2DUPd16Pseudo_UPD, ARM::VLD2DUPd16_UPD, true, true, SingleSpc, 2, 4},
150 { ARM::VLD2DUPd32Pseudo, ARM::VLD2DUPd32, true, false, SingleSpc, 2, 2},
151 { ARM::VLD2DUPd32Pseudo_UPD, ARM::VLD2DUPd32_UPD, true, true, SingleSpc, 2, 2},
152 { ARM::VLD2DUPd8Pseudo, ARM::VLD2DUPd8, true, false, SingleSpc, 2, 8},
153 { ARM::VLD2DUPd8Pseudo_UPD, ARM::VLD2DUPd8_UPD, true, true, SingleSpc, 2, 8},
155 { ARM::VLD2LNd16Pseudo, ARM::VLD2LNd16, true, false, SingleSpc, 2, 4 },
156 { ARM::VLD2LNd16Pseudo_UPD, ARM::VLD2LNd16_UPD, true, true, SingleSpc, 2, 4 },
157 { ARM::VLD2LNd32Pseudo, ARM::VLD2LNd32, true, false, SingleSpc, 2, 2 },
158 { ARM::VLD2LNd32Pseudo_UPD, ARM::VLD2LNd32_UPD, true, true, SingleSpc, 2, 2 },
159 { ARM::VLD2LNd8Pseudo, ARM::VLD2LNd8, true, false, SingleSpc, 2, 8 },
160 { ARM::VLD2LNd8Pseudo_UPD, ARM::VLD2LNd8_UPD, true, true, SingleSpc, 2, 8 },
161 { ARM::VLD2LNq16Pseudo, ARM::VLD2LNq16, true, false, EvenDblSpc, 2, 4 },
162 { ARM::VLD2LNq16Pseudo_UPD, ARM::VLD2LNq16_UPD, true, true, EvenDblSpc, 2, 4 },
163 { ARM::VLD2LNq32Pseudo, ARM::VLD2LNq32, true, false, EvenDblSpc, 2, 2 },
164 { ARM::VLD2LNq32Pseudo_UPD, ARM::VLD2LNq32_UPD, true, true, EvenDblSpc, 2, 2 },
166 { ARM::VLD2d16Pseudo, ARM::VLD2d16, true, false, SingleSpc, 2, 4 },
167 { ARM::VLD2d16Pseudo_UPD, ARM::VLD2d16_UPD, true, true, SingleSpc, 2, 4 },
168 { ARM::VLD2d32Pseudo, ARM::VLD2d32, true, false, SingleSpc, 2, 2 },
169 { ARM::VLD2d32Pseudo_UPD, ARM::VLD2d32_UPD, true, true, SingleSpc, 2, 2 },
170 { ARM::VLD2d8Pseudo, ARM::VLD2d8, true, false, SingleSpc, 2, 8 },
171 { ARM::VLD2d8Pseudo_UPD, ARM::VLD2d8_UPD, true, true, SingleSpc, 2, 8 },
173 { ARM::VLD2q16Pseudo, ARM::VLD2q16, true, false, SingleSpc, 4, 4 },
174 { ARM::VLD2q16Pseudo_UPD, ARM::VLD2q16_UPD, true, true, SingleSpc, 4, 4 },
175 { ARM::VLD2q32Pseudo, ARM::VLD2q32, true, false, SingleSpc, 4, 2 },
176 { ARM::VLD2q32Pseudo_UPD, ARM::VLD2q32_UPD, true, true, SingleSpc, 4, 2 },
177 { ARM::VLD2q8Pseudo, ARM::VLD2q8, true, false, SingleSpc, 4, 8 },
178 { ARM::VLD2q8Pseudo_UPD, ARM::VLD2q8_UPD, true, true, SingleSpc, 4, 8 },
180 { ARM::VLD3DUPd16Pseudo, ARM::VLD3DUPd16, true, false, SingleSpc, 3, 4},
181 { ARM::VLD3DUPd16Pseudo_UPD, ARM::VLD3DUPd16_UPD, true, true, SingleSpc, 3, 4},
182 { ARM::VLD3DUPd32Pseudo, ARM::VLD3DUPd32, true, false, SingleSpc, 3, 2},
183 { ARM::VLD3DUPd32Pseudo_UPD, ARM::VLD3DUPd32_UPD, true, true, SingleSpc, 3, 2},
184 { ARM::VLD3DUPd8Pseudo, ARM::VLD3DUPd8, true, false, SingleSpc, 3, 8},
185 { ARM::VLD3DUPd8Pseudo_UPD, ARM::VLD3DUPd8_UPD, true, true, SingleSpc, 3, 8},
187 { ARM::VLD3LNd16Pseudo, ARM::VLD3LNd16, true, false, SingleSpc, 3, 4 },
188 { ARM::VLD3LNd16Pseudo_UPD, ARM::VLD3LNd16_UPD, true, true, SingleSpc, 3, 4 },
189 { ARM::VLD3LNd32Pseudo, ARM::VLD3LNd32, true, false, SingleSpc, 3, 2 },
190 { ARM::VLD3LNd32Pseudo_UPD, ARM::VLD3LNd32_UPD, true, true, SingleSpc, 3, 2 },
191 { ARM::VLD3LNd8Pseudo, ARM::VLD3LNd8, true, false, SingleSpc, 3, 8 },
192 { ARM::VLD3LNd8Pseudo_UPD, ARM::VLD3LNd8_UPD, true, true, SingleSpc, 3, 8 },
193 { ARM::VLD3LNq16Pseudo, ARM::VLD3LNq16, true, false, EvenDblSpc, 3, 4 },
194 { ARM::VLD3LNq16Pseudo_UPD, ARM::VLD3LNq16_UPD, true, true, EvenDblSpc, 3, 4 },
195 { ARM::VLD3LNq32Pseudo, ARM::VLD3LNq32, true, false, EvenDblSpc, 3, 2 },
196 { ARM::VLD3LNq32Pseudo_UPD, ARM::VLD3LNq32_UPD, true, true, EvenDblSpc, 3, 2 },
198 { ARM::VLD3d16Pseudo, ARM::VLD3d16, true, false, SingleSpc, 3, 4 },
199 { ARM::VLD3d16Pseudo_UPD, ARM::VLD3d16_UPD, true, true, SingleSpc, 3, 4 },
200 { ARM::VLD3d32Pseudo, ARM::VLD3d32, true, false, SingleSpc, 3, 2 },
201 { ARM::VLD3d32Pseudo_UPD, ARM::VLD3d32_UPD, true, true, SingleSpc, 3, 2 },
202 { ARM::VLD3d8Pseudo, ARM::VLD3d8, true, false, SingleSpc, 3, 8 },
203 { ARM::VLD3d8Pseudo_UPD, ARM::VLD3d8_UPD, true, true, SingleSpc, 3, 8 },
205 { ARM::VLD3q16Pseudo_UPD, ARM::VLD3q16_UPD, true, true, EvenDblSpc, 3, 4 },
206 { ARM::VLD3q16oddPseudo_UPD, ARM::VLD3q16_UPD, true, true, OddDblSpc, 3, 4 },
207 { ARM::VLD3q32Pseudo_UPD, ARM::VLD3q32_UPD, true, true, EvenDblSpc, 3, 2 },
208 { ARM::VLD3q32oddPseudo_UPD, ARM::VLD3q32_UPD, true, true, OddDblSpc, 3, 2 },
209 { ARM::VLD3q8Pseudo_UPD, ARM::VLD3q8_UPD, true, true, EvenDblSpc, 3, 8 },
210 { ARM::VLD3q8oddPseudo_UPD, ARM::VLD3q8_UPD, true, true, OddDblSpc, 3, 8 },
212 { ARM::VLD4DUPd16Pseudo, ARM::VLD4DUPd16, true, false, SingleSpc, 4, 4},
213 { ARM::VLD4DUPd16Pseudo_UPD, ARM::VLD4DUPd16_UPD, true, true, SingleSpc, 4, 4},
214 { ARM::VLD4DUPd32Pseudo, ARM::VLD4DUPd32, true, false, SingleSpc, 4, 2},
215 { ARM::VLD4DUPd32Pseudo_UPD, ARM::VLD4DUPd32_UPD, true, true, SingleSpc, 4, 2},
216 { ARM::VLD4DUPd8Pseudo, ARM::VLD4DUPd8, true, false, SingleSpc, 4, 8},
217 { ARM::VLD4DUPd8Pseudo_UPD, ARM::VLD4DUPd8_UPD, true, true, SingleSpc, 4, 8},
219 { ARM::VLD4LNd16Pseudo, ARM::VLD4LNd16, true, false, SingleSpc, 4, 4 },
220 { ARM::VLD4LNd16Pseudo_UPD, ARM::VLD4LNd16_UPD, true, true, SingleSpc, 4, 4 },
221 { ARM::VLD4LNd32Pseudo, ARM::VLD4LNd32, true, false, SingleSpc, 4, 2 },
222 { ARM::VLD4LNd32Pseudo_UPD, ARM::VLD4LNd32_UPD, true, true, SingleSpc, 4, 2 },
223 { ARM::VLD4LNd8Pseudo, ARM::VLD4LNd8, true, false, SingleSpc, 4, 8 },
224 { ARM::VLD4LNd8Pseudo_UPD, ARM::VLD4LNd8_UPD, true, true, SingleSpc, 4, 8 },
225 { ARM::VLD4LNq16Pseudo, ARM::VLD4LNq16, true, false, EvenDblSpc, 4, 4 },
226 { ARM::VLD4LNq16Pseudo_UPD, ARM::VLD4LNq16_UPD, true, true, EvenDblSpc, 4, 4 },
227 { ARM::VLD4LNq32Pseudo, ARM::VLD4LNq32, true, false, EvenDblSpc, 4, 2 },
228 { ARM::VLD4LNq32Pseudo_UPD, ARM::VLD4LNq32_UPD, true, true, EvenDblSpc, 4, 2 },
230 { ARM::VLD4d16Pseudo, ARM::VLD4d16, true, false, SingleSpc, 4, 4 },
231 { ARM::VLD4d16Pseudo_UPD, ARM::VLD4d16_UPD, true, true, SingleSpc, 4, 4 },
232 { ARM::VLD4d32Pseudo, ARM::VLD4d32, true, false, SingleSpc, 4, 2 },
233 { ARM::VLD4d32Pseudo_UPD, ARM::VLD4d32_UPD, true, true, SingleSpc, 4, 2 },
234 { ARM::VLD4d8Pseudo, ARM::VLD4d8, true, false, SingleSpc, 4, 8 },
235 { ARM::VLD4d8Pseudo_UPD, ARM::VLD4d8_UPD, true, true, SingleSpc, 4, 8 },
237 { ARM::VLD4q16Pseudo_UPD, ARM::VLD4q16_UPD, true, true, EvenDblSpc, 4, 4 },
238 { ARM::VLD4q16oddPseudo_UPD, ARM::VLD4q16_UPD, true, true, OddDblSpc, 4, 4 },
239 { ARM::VLD4q32Pseudo_UPD, ARM::VLD4q32_UPD, true, true, EvenDblSpc, 4, 2 },
240 { ARM::VLD4q32oddPseudo_UPD, ARM::VLD4q32_UPD, true, true, OddDblSpc, 4, 2 },
241 { ARM::VLD4q8Pseudo_UPD, ARM::VLD4q8_UPD, true, true, EvenDblSpc, 4, 8 },
242 { ARM::VLD4q8oddPseudo_UPD, ARM::VLD4q8_UPD, true, true, OddDblSpc, 4, 8 },
244 { ARM::VST1LNq16Pseudo, ARM::VST1LNd16, false, false, EvenDblSpc, 1, 4 },
245 { ARM::VST1LNq16Pseudo_UPD, ARM::VST1LNd16_UPD,false, true, EvenDblSpc, 1, 4 },
246 { ARM::VST1LNq32Pseudo, ARM::VST1LNd32, false, false, EvenDblSpc, 1, 2 },
247 { ARM::VST1LNq32Pseudo_UPD, ARM::VST1LNd32_UPD,false, true, EvenDblSpc, 1, 2 },
248 { ARM::VST1LNq8Pseudo, ARM::VST1LNd8, false, false, EvenDblSpc, 1, 8 },
249 { ARM::VST1LNq8Pseudo_UPD, ARM::VST1LNd8_UPD, false, true, EvenDblSpc, 1, 8 },
251 { ARM::VST1d64QPseudo, ARM::VST1d64Q, false, false, SingleSpc, 4, 1 },
252 { ARM::VST1d64QPseudo_UPD, ARM::VST1d64Q_UPD, false, true, SingleSpc, 4, 1 },
253 { ARM::VST1d64TPseudo, ARM::VST1d64T, false, false, SingleSpc, 3, 1 },
254 { ARM::VST1d64TPseudo_UPD, ARM::VST1d64T_UPD, false, true, SingleSpc, 3, 1 },
256 { ARM::VST1q16Pseudo, ARM::VST1q16, false, false, SingleSpc, 2, 4 },
257 { ARM::VST1q16Pseudo_UPD, ARM::VST1q16_UPD, false, true, SingleSpc, 2, 4 },
258 { ARM::VST1q32Pseudo, ARM::VST1q32, false, false, SingleSpc, 2, 2 },
259 { ARM::VST1q32Pseudo_UPD, ARM::VST1q32_UPD, false, true, SingleSpc, 2, 2 },
260 { ARM::VST1q64Pseudo, ARM::VST1q64, false, false, SingleSpc, 2, 1 },
261 { ARM::VST1q64Pseudo_UPD, ARM::VST1q64_UPD, false, true, SingleSpc, 2, 1 },
262 { ARM::VST1q8Pseudo, ARM::VST1q8, false, false, SingleSpc, 2, 8 },
263 { ARM::VST1q8Pseudo_UPD, ARM::VST1q8_UPD, false, true, SingleSpc, 2, 8 },
265 { ARM::VST2LNd16Pseudo, ARM::VST2LNd16, false, false, SingleSpc, 2, 4 },
266 { ARM::VST2LNd16Pseudo_UPD, ARM::VST2LNd16_UPD, false, true, SingleSpc, 2, 4 },
267 { ARM::VST2LNd32Pseudo, ARM::VST2LNd32, false, false, SingleSpc, 2, 2 },
268 { ARM::VST2LNd32Pseudo_UPD, ARM::VST2LNd32_UPD, false, true, SingleSpc, 2, 2 },
269 { ARM::VST2LNd8Pseudo, ARM::VST2LNd8, false, false, SingleSpc, 2, 8 },
270 { ARM::VST2LNd8Pseudo_UPD, ARM::VST2LNd8_UPD, false, true, SingleSpc, 2, 8 },
271 { ARM::VST2LNq16Pseudo, ARM::VST2LNq16, false, false, EvenDblSpc, 2, 4},
272 { ARM::VST2LNq16Pseudo_UPD, ARM::VST2LNq16_UPD, false, true, EvenDblSpc, 2, 4},
273 { ARM::VST2LNq32Pseudo, ARM::VST2LNq32, false, false, EvenDblSpc, 2, 2},
274 { ARM::VST2LNq32Pseudo_UPD, ARM::VST2LNq32_UPD, false, true, EvenDblSpc, 2, 2},
276 { ARM::VST2d16Pseudo, ARM::VST2d16, false, false, SingleSpc, 2, 4 },
277 { ARM::VST2d16Pseudo_UPD, ARM::VST2d16_UPD, false, true, SingleSpc, 2, 4 },
278 { ARM::VST2d32Pseudo, ARM::VST2d32, false, false, SingleSpc, 2, 2 },
279 { ARM::VST2d32Pseudo_UPD, ARM::VST2d32_UPD, false, true, SingleSpc, 2, 2 },
280 { ARM::VST2d8Pseudo, ARM::VST2d8, false, false, SingleSpc, 2, 8 },
281 { ARM::VST2d8Pseudo_UPD, ARM::VST2d8_UPD, false, true, SingleSpc, 2, 8 },
283 { ARM::VST2q16Pseudo, ARM::VST2q16, false, false, SingleSpc, 4, 4 },
284 { ARM::VST2q16Pseudo_UPD, ARM::VST2q16_UPD, false, true, SingleSpc, 4, 4 },
285 { ARM::VST2q32Pseudo, ARM::VST2q32, false, false, SingleSpc, 4, 2 },
286 { ARM::VST2q32Pseudo_UPD, ARM::VST2q32_UPD, false, true, SingleSpc, 4, 2 },
287 { ARM::VST2q8Pseudo, ARM::VST2q8, false, false, SingleSpc, 4, 8 },
288 { ARM::VST2q8Pseudo_UPD, ARM::VST2q8_UPD, false, true, SingleSpc, 4, 8 },
290 { ARM::VST3LNd16Pseudo, ARM::VST3LNd16, false, false, SingleSpc, 3, 4 },
291 { ARM::VST3LNd16Pseudo_UPD, ARM::VST3LNd16_UPD, false, true, SingleSpc, 3, 4 },
292 { ARM::VST3LNd32Pseudo, ARM::VST3LNd32, false, false, SingleSpc, 3, 2 },
293 { ARM::VST3LNd32Pseudo_UPD, ARM::VST3LNd32_UPD, false, true, SingleSpc, 3, 2 },
294 { ARM::VST3LNd8Pseudo, ARM::VST3LNd8, false, false, SingleSpc, 3, 8 },
295 { ARM::VST3LNd8Pseudo_UPD, ARM::VST3LNd8_UPD, false, true, SingleSpc, 3, 8 },
296 { ARM::VST3LNq16Pseudo, ARM::VST3LNq16, false, false, EvenDblSpc, 3, 4},
297 { ARM::VST3LNq16Pseudo_UPD, ARM::VST3LNq16_UPD, false, true, EvenDblSpc, 3, 4},
298 { ARM::VST3LNq32Pseudo, ARM::VST3LNq32, false, false, EvenDblSpc, 3, 2},
299 { ARM::VST3LNq32Pseudo_UPD, ARM::VST3LNq32_UPD, false, true, EvenDblSpc, 3, 2},
301 { ARM::VST3d16Pseudo, ARM::VST3d16, false, false, SingleSpc, 3, 4 },
302 { ARM::VST3d16Pseudo_UPD, ARM::VST3d16_UPD, false, true, SingleSpc, 3, 4 },
303 { ARM::VST3d32Pseudo, ARM::VST3d32, false, false, SingleSpc, 3, 2 },
304 { ARM::VST3d32Pseudo_UPD, ARM::VST3d32_UPD, false, true, SingleSpc, 3, 2 },
305 { ARM::VST3d8Pseudo, ARM::VST3d8, false, false, SingleSpc, 3, 8 },
306 { ARM::VST3d8Pseudo_UPD, ARM::VST3d8_UPD, false, true, SingleSpc, 3, 8 },
308 { ARM::VST3q16Pseudo_UPD, ARM::VST3q16_UPD, false, true, EvenDblSpc, 3, 4 },
309 { ARM::VST3q16oddPseudo_UPD, ARM::VST3q16_UPD, false, true, OddDblSpc, 3, 4 },
310 { ARM::VST3q32Pseudo_UPD, ARM::VST3q32_UPD, false, true, EvenDblSpc, 3, 2 },
311 { ARM::VST3q32oddPseudo_UPD, ARM::VST3q32_UPD, false, true, OddDblSpc, 3, 2 },
312 { ARM::VST3q8Pseudo_UPD, ARM::VST3q8_UPD, false, true, EvenDblSpc, 3, 8 },
313 { ARM::VST3q8oddPseudo_UPD, ARM::VST3q8_UPD, false, true, OddDblSpc, 3, 8 },
315 { ARM::VST4LNd16Pseudo, ARM::VST4LNd16, false, false, SingleSpc, 4, 4 },
316 { ARM::VST4LNd16Pseudo_UPD, ARM::VST4LNd16_UPD, false, true, SingleSpc, 4, 4 },
317 { ARM::VST4LNd32Pseudo, ARM::VST4LNd32, false, false, SingleSpc, 4, 2 },
318 { ARM::VST4LNd32Pseudo_UPD, ARM::VST4LNd32_UPD, false, true, SingleSpc, 4, 2 },
319 { ARM::VST4LNd8Pseudo, ARM::VST4LNd8, false, false, SingleSpc, 4, 8 },
320 { ARM::VST4LNd8Pseudo_UPD, ARM::VST4LNd8_UPD, false, true, SingleSpc, 4, 8 },
321 { ARM::VST4LNq16Pseudo, ARM::VST4LNq16, false, false, EvenDblSpc, 4, 4},
322 { ARM::VST4LNq16Pseudo_UPD, ARM::VST4LNq16_UPD, false, true, EvenDblSpc, 4, 4},
323 { ARM::VST4LNq32Pseudo, ARM::VST4LNq32, false, false, EvenDblSpc, 4, 2},
324 { ARM::VST4LNq32Pseudo_UPD, ARM::VST4LNq32_UPD, false, true, EvenDblSpc, 4, 2},
326 { ARM::VST4d16Pseudo, ARM::VST4d16, false, false, SingleSpc, 4, 4 },
327 { ARM::VST4d16Pseudo_UPD, ARM::VST4d16_UPD, false, true, SingleSpc, 4, 4 },
328 { ARM::VST4d32Pseudo, ARM::VST4d32, false, false, SingleSpc, 4, 2 },
329 { ARM::VST4d32Pseudo_UPD, ARM::VST4d32_UPD, false, true, SingleSpc, 4, 2 },
330 { ARM::VST4d8Pseudo, ARM::VST4d8, false, false, SingleSpc, 4, 8 },
331 { ARM::VST4d8Pseudo_UPD, ARM::VST4d8_UPD, false, true, SingleSpc, 4, 8 },
333 { ARM::VST4q16Pseudo_UPD, ARM::VST4q16_UPD, false, true, EvenDblSpc, 4, 4 },
334 { ARM::VST4q16oddPseudo_UPD, ARM::VST4q16_UPD, false, true, OddDblSpc, 4, 4 },
335 { ARM::VST4q32Pseudo_UPD, ARM::VST4q32_UPD, false, true, EvenDblSpc, 4, 2 },
336 { ARM::VST4q32oddPseudo_UPD, ARM::VST4q32_UPD, false, true, OddDblSpc, 4, 2 },
337 { ARM::VST4q8Pseudo_UPD, ARM::VST4q8_UPD, false, true, EvenDblSpc, 4, 8 },
338 { ARM::VST4q8oddPseudo_UPD , ARM::VST4q8_UPD, false, true, OddDblSpc, 4, 8 }
341 /// LookupNEONLdSt - Search the NEONLdStTable for information about a NEON
342 /// load or store pseudo instruction.
343 static const NEONLdStTableEntry *LookupNEONLdSt(unsigned Opcode) {
344 unsigned NumEntries = array_lengthof(NEONLdStTable);
347 // Make sure the table is sorted.
348 static bool TableChecked = false;
350 for (unsigned i = 0; i != NumEntries-1; ++i)
351 assert(NEONLdStTable[i] < NEONLdStTable[i+1] &&
352 "NEONLdStTable is not sorted!");
357 const NEONLdStTableEntry *I =
358 std::lower_bound(NEONLdStTable, NEONLdStTable + NumEntries, Opcode);
359 if (I != NEONLdStTable + NumEntries && I->PseudoOpc == Opcode)
364 /// GetDSubRegs - Get 4 D subregisters of a Q, QQ, or QQQQ register,
365 /// corresponding to the specified register spacing. Not all of the results
366 /// are necessarily valid, e.g., a Q register only has 2 D subregisters.
367 static void GetDSubRegs(unsigned Reg, NEONRegSpacing RegSpc,
368 const TargetRegisterInfo *TRI, unsigned &D0,
369 unsigned &D1, unsigned &D2, unsigned &D3) {
370 if (RegSpc == SingleSpc) {
371 D0 = TRI->getSubReg(Reg, ARM::dsub_0);
372 D1 = TRI->getSubReg(Reg, ARM::dsub_1);
373 D2 = TRI->getSubReg(Reg, ARM::dsub_2);
374 D3 = TRI->getSubReg(Reg, ARM::dsub_3);
375 } else if (RegSpc == EvenDblSpc) {
376 D0 = TRI->getSubReg(Reg, ARM::dsub_0);
377 D1 = TRI->getSubReg(Reg, ARM::dsub_2);
378 D2 = TRI->getSubReg(Reg, ARM::dsub_4);
379 D3 = TRI->getSubReg(Reg, ARM::dsub_6);
381 assert(RegSpc == OddDblSpc && "unknown register spacing");
382 D0 = TRI->getSubReg(Reg, ARM::dsub_1);
383 D1 = TRI->getSubReg(Reg, ARM::dsub_3);
384 D2 = TRI->getSubReg(Reg, ARM::dsub_5);
385 D3 = TRI->getSubReg(Reg, ARM::dsub_7);
389 /// ExpandVLD - Translate VLD pseudo instructions with Q, QQ or QQQQ register
390 /// operands to real VLD instructions with D register operands.
391 void ARMExpandPseudo::ExpandVLD(MachineBasicBlock::iterator &MBBI) {
392 MachineInstr &MI = *MBBI;
393 MachineBasicBlock &MBB = *MI.getParent();
395 const NEONLdStTableEntry *TableEntry = LookupNEONLdSt(MI.getOpcode());
396 assert(TableEntry && TableEntry->IsLoad && "NEONLdStTable lookup failed");
397 NEONRegSpacing RegSpc = TableEntry->RegSpacing;
398 unsigned NumRegs = TableEntry->NumRegs;
400 MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(),
401 TII->get(TableEntry->RealOpc));
404 bool DstIsDead = MI.getOperand(OpIdx).isDead();
405 unsigned DstReg = MI.getOperand(OpIdx++).getReg();
406 unsigned D0, D1, D2, D3;
407 GetDSubRegs(DstReg, RegSpc, TRI, D0, D1, D2, D3);
408 MIB.addReg(D0, RegState::Define | getDeadRegState(DstIsDead))
409 .addReg(D1, RegState::Define | getDeadRegState(DstIsDead));
411 MIB.addReg(D2, RegState::Define | getDeadRegState(DstIsDead));
413 MIB.addReg(D3, RegState::Define | getDeadRegState(DstIsDead));
415 if (TableEntry->HasWriteBack)
416 MIB.addOperand(MI.getOperand(OpIdx++));
418 // Copy the addrmode6 operands.
419 MIB.addOperand(MI.getOperand(OpIdx++));
420 MIB.addOperand(MI.getOperand(OpIdx++));
421 // Copy the am6offset operand.
422 if (TableEntry->HasWriteBack)
423 MIB.addOperand(MI.getOperand(OpIdx++));
425 // For an instruction writing double-spaced subregs, the pseudo instruction
426 // has an extra operand that is a use of the super-register. Record the
427 // operand index and skip over it.
428 unsigned SrcOpIdx = 0;
429 if (RegSpc == EvenDblSpc || RegSpc == OddDblSpc)
432 // Copy the predicate operands.
433 MIB.addOperand(MI.getOperand(OpIdx++));
434 MIB.addOperand(MI.getOperand(OpIdx++));
436 // Copy the super-register source operand used for double-spaced subregs over
437 // to the new instruction as an implicit operand.
439 MachineOperand MO = MI.getOperand(SrcOpIdx);
440 MO.setImplicit(true);
443 // Add an implicit def for the super-register.
444 MIB.addReg(DstReg, RegState::ImplicitDefine | getDeadRegState(DstIsDead));
445 TransferImpOps(MI, MIB, MIB);
446 MI.eraseFromParent();
449 /// ExpandVST - Translate VST pseudo instructions with Q, QQ or QQQQ register
450 /// operands to real VST instructions with D register operands.
451 void ARMExpandPseudo::ExpandVST(MachineBasicBlock::iterator &MBBI) {
452 MachineInstr &MI = *MBBI;
453 MachineBasicBlock &MBB = *MI.getParent();
455 const NEONLdStTableEntry *TableEntry = LookupNEONLdSt(MI.getOpcode());
456 assert(TableEntry && !TableEntry->IsLoad && "NEONLdStTable lookup failed");
457 NEONRegSpacing RegSpc = TableEntry->RegSpacing;
458 unsigned NumRegs = TableEntry->NumRegs;
460 MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(),
461 TII->get(TableEntry->RealOpc));
463 if (TableEntry->HasWriteBack)
464 MIB.addOperand(MI.getOperand(OpIdx++));
466 // Copy the addrmode6 operands.
467 MIB.addOperand(MI.getOperand(OpIdx++));
468 MIB.addOperand(MI.getOperand(OpIdx++));
469 // Copy the am6offset operand.
470 if (TableEntry->HasWriteBack)
471 MIB.addOperand(MI.getOperand(OpIdx++));
473 bool SrcIsKill = MI.getOperand(OpIdx).isKill();
474 unsigned SrcReg = MI.getOperand(OpIdx++).getReg();
475 unsigned D0, D1, D2, D3;
476 GetDSubRegs(SrcReg, RegSpc, TRI, D0, D1, D2, D3);
477 MIB.addReg(D0).addReg(D1);
483 // Copy the predicate operands.
484 MIB.addOperand(MI.getOperand(OpIdx++));
485 MIB.addOperand(MI.getOperand(OpIdx++));
488 // Add an implicit kill for the super-reg.
489 (*MIB).addRegisterKilled(SrcReg, TRI, true);
490 TransferImpOps(MI, MIB, MIB);
491 MI.eraseFromParent();
494 /// ExpandLaneOp - Translate VLD*LN and VST*LN instructions with Q, QQ or QQQQ
495 /// register operands to real instructions with D register operands.
496 void ARMExpandPseudo::ExpandLaneOp(MachineBasicBlock::iterator &MBBI) {
497 MachineInstr &MI = *MBBI;
498 MachineBasicBlock &MBB = *MI.getParent();
500 const NEONLdStTableEntry *TableEntry = LookupNEONLdSt(MI.getOpcode());
501 assert(TableEntry && "NEONLdStTable lookup failed");
502 NEONRegSpacing RegSpc = TableEntry->RegSpacing;
503 unsigned NumRegs = TableEntry->NumRegs;
504 unsigned RegElts = TableEntry->RegElts;
506 MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(),
507 TII->get(TableEntry->RealOpc));
509 // The lane operand is always the 3rd from last operand, before the 2
510 // predicate operands.
511 unsigned Lane = MI.getOperand(MI.getDesc().getNumOperands() - 3).getImm();
513 // Adjust the lane and spacing as needed for Q registers.
514 assert(RegSpc != OddDblSpc && "unexpected register spacing for VLD/VST-lane");
515 if (RegSpc == EvenDblSpc && Lane >= RegElts) {
519 assert(Lane < RegElts && "out of range lane for VLD/VST-lane");
521 unsigned D0, D1, D2, D3;
523 bool DstIsDead = false;
524 if (TableEntry->IsLoad) {
525 DstIsDead = MI.getOperand(OpIdx).isDead();
526 DstReg = MI.getOperand(OpIdx++).getReg();
527 GetDSubRegs(DstReg, RegSpc, TRI, D0, D1, D2, D3);
528 MIB.addReg(D0, RegState::Define | getDeadRegState(DstIsDead));
530 MIB.addReg(D1, RegState::Define | getDeadRegState(DstIsDead));
532 MIB.addReg(D2, RegState::Define | getDeadRegState(DstIsDead));
534 MIB.addReg(D3, RegState::Define | getDeadRegState(DstIsDead));
537 if (TableEntry->HasWriteBack)
538 MIB.addOperand(MI.getOperand(OpIdx++));
540 // Copy the addrmode6 operands.
541 MIB.addOperand(MI.getOperand(OpIdx++));
542 MIB.addOperand(MI.getOperand(OpIdx++));
543 // Copy the am6offset operand.
544 if (TableEntry->HasWriteBack)
545 MIB.addOperand(MI.getOperand(OpIdx++));
547 // Grab the super-register source.
548 MachineOperand MO = MI.getOperand(OpIdx++);
549 if (!TableEntry->IsLoad)
550 GetDSubRegs(MO.getReg(), RegSpc, TRI, D0, D1, D2, D3);
552 // Add the subregs as sources of the new instruction.
553 unsigned SrcFlags = (getUndefRegState(MO.isUndef()) |
554 getKillRegState(MO.isKill()));
555 MIB.addReg(D0, SrcFlags);
557 MIB.addReg(D1, SrcFlags);
559 MIB.addReg(D2, SrcFlags);
561 MIB.addReg(D3, SrcFlags);
563 // Add the lane number operand.
567 // Copy the predicate operands.
568 MIB.addOperand(MI.getOperand(OpIdx++));
569 MIB.addOperand(MI.getOperand(OpIdx++));
571 // Copy the super-register source to be an implicit source.
572 MO.setImplicit(true);
574 if (TableEntry->IsLoad)
575 // Add an implicit def for the super-register.
576 MIB.addReg(DstReg, RegState::ImplicitDefine | getDeadRegState(DstIsDead));
577 TransferImpOps(MI, MIB, MIB);
578 MI.eraseFromParent();
581 /// ExpandVTBL - Translate VTBL and VTBX pseudo instructions with Q or QQ
582 /// register operands to real instructions with D register operands.
583 void ARMExpandPseudo::ExpandVTBL(MachineBasicBlock::iterator &MBBI,
584 unsigned Opc, bool IsExt, unsigned NumRegs) {
585 MachineInstr &MI = *MBBI;
586 MachineBasicBlock &MBB = *MI.getParent();
588 MachineInstrBuilder MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(Opc));
591 // Transfer the destination register operand.
592 MIB.addOperand(MI.getOperand(OpIdx++));
594 MIB.addOperand(MI.getOperand(OpIdx++));
596 bool SrcIsKill = MI.getOperand(OpIdx).isKill();
597 unsigned SrcReg = MI.getOperand(OpIdx++).getReg();
598 unsigned D0, D1, D2, D3;
599 GetDSubRegs(SrcReg, SingleSpc, TRI, D0, D1, D2, D3);
600 MIB.addReg(D0).addReg(D1);
606 // Copy the other source register operand.
607 MIB.addOperand(MI.getOperand(OpIdx++));
609 // Copy the predicate operands.
610 MIB.addOperand(MI.getOperand(OpIdx++));
611 MIB.addOperand(MI.getOperand(OpIdx++));
614 // Add an implicit kill for the super-reg.
615 (*MIB).addRegisterKilled(SrcReg, TRI, true);
616 TransferImpOps(MI, MIB, MIB);
617 MI.eraseFromParent();
620 void ARMExpandPseudo::ExpandMOV32BitImm(MachineBasicBlock &MBB,
621 MachineBasicBlock::iterator &MBBI) {
622 MachineInstr &MI = *MBBI;
623 unsigned Opcode = MI.getOpcode();
624 unsigned PredReg = 0;
625 ARMCC::CondCodes Pred = llvm::getInstrPredicate(&MI, PredReg);
626 unsigned DstReg = MI.getOperand(0).getReg();
627 bool DstIsDead = MI.getOperand(0).isDead();
628 bool isCC = Opcode == ARM::MOVCCi32imm || Opcode == ARM::t2MOVCCi32imm;
629 const MachineOperand &MO = MI.getOperand(isCC ? 2 : 1);
630 MachineInstrBuilder LO16, HI16;
632 if (!STI->hasV6T2Ops() &&
633 (Opcode == ARM::MOVi32imm || Opcode == ARM::MOVCCi32imm)) {
634 // Expand into a movi + orr.
635 LO16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVi), DstReg);
636 HI16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::ORRri))
637 .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead))
640 assert (MO.isImm() && "MOVi32imm w/ non-immediate source operand!");
641 unsigned ImmVal = (unsigned)MO.getImm();
642 unsigned SOImmValV1 = ARM_AM::getSOImmTwoPartFirst(ImmVal);
643 unsigned SOImmValV2 = ARM_AM::getSOImmTwoPartSecond(ImmVal);
644 LO16 = LO16.addImm(SOImmValV1);
645 HI16 = HI16.addImm(SOImmValV2);
646 (*LO16).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
647 (*HI16).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
648 LO16.addImm(Pred).addReg(PredReg).addReg(0);
649 HI16.addImm(Pred).addReg(PredReg).addReg(0);
650 TransferImpOps(MI, LO16, HI16);
651 MI.eraseFromParent();
655 unsigned LO16Opc = 0;
656 unsigned HI16Opc = 0;
657 if (Opcode == ARM::t2MOVi32imm || Opcode == ARM::t2MOVCCi32imm) {
658 LO16Opc = ARM::t2MOVi16;
659 HI16Opc = ARM::t2MOVTi16;
661 LO16Opc = ARM::MOVi16;
662 HI16Opc = ARM::MOVTi16;
665 LO16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(LO16Opc), DstReg);
666 HI16 = BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(HI16Opc))
667 .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead))
671 unsigned Imm = MO.getImm();
672 unsigned Lo16 = Imm & 0xffff;
673 unsigned Hi16 = (Imm >> 16) & 0xffff;
674 LO16 = LO16.addImm(Lo16);
675 HI16 = HI16.addImm(Hi16);
677 const GlobalValue *GV = MO.getGlobal();
678 unsigned TF = MO.getTargetFlags();
679 LO16 = LO16.addGlobalAddress(GV, MO.getOffset(), TF | ARMII::MO_LO16);
680 HI16 = HI16.addGlobalAddress(GV, MO.getOffset(), TF | ARMII::MO_HI16);
683 (*LO16).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
684 (*HI16).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
685 LO16.addImm(Pred).addReg(PredReg);
686 HI16.addImm(Pred).addReg(PredReg);
688 TransferImpOps(MI, LO16, HI16);
689 MI.eraseFromParent();
692 bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB,
693 MachineBasicBlock::iterator MBBI) {
694 MachineInstr &MI = *MBBI;
695 unsigned Opcode = MI.getOpcode();
699 case ARM::Int_eh_sjlj_dispatchsetup: {
700 MachineFunction &MF = *MI.getParent()->getParent();
701 const ARMBaseInstrInfo *AII =
702 static_cast<const ARMBaseInstrInfo*>(TII);
703 const ARMBaseRegisterInfo &RI = AII->getRegisterInfo();
704 // For functions using a base pointer, we rematerialize it (via the frame
705 // pointer) here since eh.sjlj.setjmp and eh.sjlj.longjmp don't do it
706 // for us. Otherwise, expand to nothing.
707 if (RI.hasBasePointer(MF)) {
708 int32_t NumBytes = AFI->getFramePtrSpillOffset();
709 unsigned FramePtr = RI.getFrameRegister(MF);
710 assert(MF.getTarget().getFrameLowering()->hasFP(MF) &&
711 "base pointer without frame pointer?");
713 if (AFI->isThumb2Function()) {
714 llvm::emitT2RegPlusImmediate(MBB, MBBI, MI.getDebugLoc(), ARM::R6,
715 FramePtr, -NumBytes, ARMCC::AL, 0, *TII);
716 } else if (AFI->isThumbFunction()) {
717 llvm::emitThumbRegPlusImmediate(MBB, MBBI, ARM::R6,
719 *TII, RI, MI.getDebugLoc());
721 llvm::emitARMRegPlusImmediate(MBB, MBBI, MI.getDebugLoc(), ARM::R6,
722 FramePtr, -NumBytes, ARMCC::AL, 0,
725 // If there's dynamic realignment, adjust for it.
726 if (RI.needsStackRealignment(MF)) {
727 MachineFrameInfo *MFI = MF.getFrameInfo();
728 unsigned MaxAlign = MFI->getMaxAlignment();
729 assert (!AFI->isThumb1OnlyFunction());
730 // Emit bic r6, r6, MaxAlign
731 unsigned bicOpc = AFI->isThumbFunction() ?
732 ARM::t2BICri : ARM::BICri;
733 AddDefaultCC(AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(),
734 TII->get(bicOpc), ARM::R6)
735 .addReg(ARM::R6, RegState::Kill)
736 .addImm(MaxAlign-1)));
740 MI.eraseFromParent();
744 case ARM::MOVsrl_flag:
745 case ARM::MOVsra_flag: {
746 // These are just fancy MOVs insructions.
747 AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVs),
748 MI.getOperand(0).getReg())
749 .addOperand(MI.getOperand(1))
751 .addImm(ARM_AM::getSORegOpc((Opcode == ARM::MOVsrl_flag ? ARM_AM::lsr
753 .addReg(ARM::CPSR, RegState::Define);
754 MI.eraseFromParent();
758 // This encodes as "MOVs Rd, Rm, rrx
759 MachineInstrBuilder MIB =
760 AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(ARM::MOVs),
761 MI.getOperand(0).getReg())
762 .addOperand(MI.getOperand(1))
763 .addOperand(MI.getOperand(1))
764 .addImm(ARM_AM::getSORegOpc(ARM_AM::rrx, 0)))
766 TransferImpOps(MI, MIB, MIB);
767 MI.eraseFromParent();
771 MachineInstrBuilder MIB =
772 BuildMI(MBB, MBBI, MI.getDebugLoc(),
774 .addExternalSymbol("__aeabi_read_tp", 0);
776 (*MIB).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
777 TransferImpOps(MI, MIB, MIB);
778 MI.eraseFromParent();
783 case ARM::t2LDRSHpci:
784 case ARM::t2LDRSBpci:
785 case ARM::t2LDRpci: {
787 if (Opcode == ARM::t2LDRpci)
788 NewLdOpc = ARM::t2LDRi12;
789 else if (Opcode == ARM::t2LDRHpci)
790 NewLdOpc = ARM::t2LDRHi12;
791 else if (Opcode == ARM::t2LDRBpci)
792 NewLdOpc = ARM::t2LDRBi12;
793 else if (Opcode == ARM::t2LDRSHpci)
794 NewLdOpc = ARM::t2LDRSHi12;
795 else if (Opcode == ARM::t2LDRSBpci)
796 NewLdOpc = ARM::t2LDRSBi12;
798 llvm_unreachable("Not a known opcode?");
800 unsigned DstReg = MI.getOperand(0).getReg();
801 MachineInstrBuilder MIB =
802 AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(),
803 TII->get(NewLdOpc), DstReg)
805 .addOperand(MI.getOperand(1)));
806 (*MIB).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
807 TransferImpOps(MI, MIB, MIB);
808 MI.eraseFromParent();
812 case ARM::tLDRpci_pic:
813 case ARM::t2LDRpci_pic: {
814 unsigned NewLdOpc = (Opcode == ARM::tLDRpci_pic)
815 ? ARM::tLDRpci : ARM::t2LDRi12;
816 unsigned DstReg = MI.getOperand(0).getReg();
817 bool DstIsDead = MI.getOperand(0).isDead();
818 MachineInstrBuilder MIB1 =
819 BuildMI(MBB, MBBI, MI.getDebugLoc(),
820 TII->get(NewLdOpc), DstReg);
821 if (Opcode == ARM::t2LDRpci_pic) MIB1.addReg(ARM::PC);
822 MIB1.addOperand(MI.getOperand(1));
823 AddDefaultPred(MIB1);
824 (*MIB1).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
825 MachineInstrBuilder MIB2 = BuildMI(MBB, MBBI, MI.getDebugLoc(),
826 TII->get(ARM::tPICADD))
827 .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead))
829 .addOperand(MI.getOperand(2));
830 TransferImpOps(MI, MIB1, MIB2);
831 MI.eraseFromParent();
835 case ARM::MOV_pic_ga_add_pc:
836 case ARM::MOV_pic_ga_ldr:
837 case ARM::t2MOV_pic_ga_add_pc: {
838 // Expand into movw + movw + add pc / ldr [pc]
839 unsigned LabelId = AFI->createPICLabelUId();
840 unsigned DstReg = MI.getOperand(0).getReg();
841 bool DstIsDead = MI.getOperand(0).isDead();
842 const MachineOperand &MO1 = MI.getOperand(1);
843 const GlobalValue *GV = MO1.getGlobal();
844 unsigned TF = MO1.getTargetFlags();
845 bool isARM = Opcode != ARM::t2MOV_pic_ga_add_pc;
846 unsigned LO16Opc = isARM ? ARM::MOVi16_pic_ga : ARM::t2MOVi16_pic_ga;
847 unsigned HI16Opc = isARM ? ARM::MOVTi16_pic_ga : ARM::t2MOVTi16_pic_ga;
848 unsigned PICAddOpc = isARM
849 ? (Opcode == ARM::MOV_pic_ga_ldr ? ARM::PICLDR : ARM::PICADD)
851 MachineInstrBuilder MIB1 = BuildMI(MBB, MBBI, MI.getDebugLoc(),
852 TII->get(LO16Opc), DstReg)
853 .addGlobalAddress(GV, MO1.getOffset(),
854 TF | ARMII::MO_LO16_NONLAZY_PIC)
856 BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(HI16Opc), DstReg)
858 .addGlobalAddress(GV, MO1.getOffset(),
859 TF | ARMII::MO_HI16_NONLAZY_PIC)
861 MachineInstrBuilder MIB2 = BuildMI(MBB, MBBI, MI.getDebugLoc(),
863 .addReg(DstReg, RegState::Define | getDeadRegState(DstIsDead))
864 .addReg(DstReg).addImm(LabelId);
866 AddDefaultPred(MIB2);
867 if (Opcode == ARM::MOV_pic_ga_ldr)
868 (*MIB2).setMemRefs(MI.memoperands_begin(), MI.memoperands_end());
870 TransferImpOps(MI, MIB1, MIB2);
871 MI.eraseFromParent();
876 case ARM::MOVCCi32imm:
877 case ARM::t2MOVi32imm:
878 case ARM::t2MOVCCi32imm:
879 ExpandMOV32BitImm(MBB, MBBI);
883 unsigned DstReg = MI.getOperand(0).getReg();
884 bool DstIsDead = MI.getOperand(0).isDead();
885 unsigned EvenDst = TRI->getSubReg(DstReg, ARM::qsub_0);
886 unsigned OddDst = TRI->getSubReg(DstReg, ARM::qsub_1);
887 unsigned SrcReg = MI.getOperand(1).getReg();
888 bool SrcIsKill = MI.getOperand(1).isKill();
889 unsigned EvenSrc = TRI->getSubReg(SrcReg, ARM::qsub_0);
890 unsigned OddSrc = TRI->getSubReg(SrcReg, ARM::qsub_1);
891 MachineInstrBuilder Even =
892 AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(),
893 TII->get(ARM::VMOVQ))
895 RegState::Define | getDeadRegState(DstIsDead))
896 .addReg(EvenSrc, getKillRegState(SrcIsKill)));
897 MachineInstrBuilder Odd =
898 AddDefaultPred(BuildMI(MBB, MBBI, MI.getDebugLoc(),
899 TII->get(ARM::VMOVQ))
901 RegState::Define | getDeadRegState(DstIsDead))
902 .addReg(OddSrc, getKillRegState(SrcIsKill)));
903 TransferImpOps(MI, Even, Odd);
904 MI.eraseFromParent();
910 unsigned NewOpc = (Opcode == ARM::VLDMQIA) ? ARM::VLDMDIA : ARM::VLDMDDB;
911 MachineInstrBuilder MIB =
912 BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc));
915 // Grab the Q register destination.
916 bool DstIsDead = MI.getOperand(OpIdx).isDead();
917 unsigned DstReg = MI.getOperand(OpIdx++).getReg();
919 // Copy the source register.
920 MIB.addOperand(MI.getOperand(OpIdx++));
922 // Copy the predicate operands.
923 MIB.addOperand(MI.getOperand(OpIdx++));
924 MIB.addOperand(MI.getOperand(OpIdx++));
926 // Add the destination operands (D subregs).
927 unsigned D0 = TRI->getSubReg(DstReg, ARM::dsub_0);
928 unsigned D1 = TRI->getSubReg(DstReg, ARM::dsub_1);
929 MIB.addReg(D0, RegState::Define | getDeadRegState(DstIsDead))
930 .addReg(D1, RegState::Define | getDeadRegState(DstIsDead));
932 // Add an implicit def for the super-register.
933 MIB.addReg(DstReg, RegState::ImplicitDefine | getDeadRegState(DstIsDead));
934 TransferImpOps(MI, MIB, MIB);
935 MI.eraseFromParent();
941 unsigned NewOpc = (Opcode == ARM::VSTMQIA) ? ARM::VSTMDIA : ARM::VSTMDDB;
942 MachineInstrBuilder MIB =
943 BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc));
946 // Grab the Q register source.
947 bool SrcIsKill = MI.getOperand(OpIdx).isKill();
948 unsigned SrcReg = MI.getOperand(OpIdx++).getReg();
950 // Copy the destination register.
951 MIB.addOperand(MI.getOperand(OpIdx++));
953 // Copy the predicate operands.
954 MIB.addOperand(MI.getOperand(OpIdx++));
955 MIB.addOperand(MI.getOperand(OpIdx++));
957 // Add the source operands (D subregs).
958 unsigned D0 = TRI->getSubReg(SrcReg, ARM::dsub_0);
959 unsigned D1 = TRI->getSubReg(SrcReg, ARM::dsub_1);
960 MIB.addReg(D0).addReg(D1);
963 // Add an implicit kill for the Q register.
964 (*MIB).addRegisterKilled(SrcReg, TRI, true);
966 TransferImpOps(MI, MIB, MIB);
967 MI.eraseFromParent();
972 unsigned NewOpc = Opcode == ARM::VDUPfqf ? ARM::VDUPLNfq : ARM::VDUPLNfd;
973 MachineInstrBuilder MIB =
974 BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpc));
976 unsigned SrcReg = MI.getOperand(1).getReg();
977 unsigned Lane = getARMRegisterNumbering(SrcReg) & 1;
978 unsigned DReg = TRI->getMatchingSuperReg(SrcReg,
979 Lane & 1 ? ARM::ssub_1 : ARM::ssub_0, &ARM::DPR_VFP2RegClass);
980 // The lane is [0,1] for the containing DReg superregister.
981 // Copy the dst/src register operands.
982 MIB.addOperand(MI.getOperand(OpIdx++));
985 // Add the lane select operand.
987 // Add the predicate operands.
988 MIB.addOperand(MI.getOperand(OpIdx++));
989 MIB.addOperand(MI.getOperand(OpIdx++));
991 TransferImpOps(MI, MIB, MIB);
992 MI.eraseFromParent();
996 case ARM::VLD1q8Pseudo:
997 case ARM::VLD1q16Pseudo:
998 case ARM::VLD1q32Pseudo:
999 case ARM::VLD1q64Pseudo:
1000 case ARM::VLD1q8Pseudo_UPD:
1001 case ARM::VLD1q16Pseudo_UPD:
1002 case ARM::VLD1q32Pseudo_UPD:
1003 case ARM::VLD1q64Pseudo_UPD:
1004 case ARM::VLD2d8Pseudo:
1005 case ARM::VLD2d16Pseudo:
1006 case ARM::VLD2d32Pseudo:
1007 case ARM::VLD2q8Pseudo:
1008 case ARM::VLD2q16Pseudo:
1009 case ARM::VLD2q32Pseudo:
1010 case ARM::VLD2d8Pseudo_UPD:
1011 case ARM::VLD2d16Pseudo_UPD:
1012 case ARM::VLD2d32Pseudo_UPD:
1013 case ARM::VLD2q8Pseudo_UPD:
1014 case ARM::VLD2q16Pseudo_UPD:
1015 case ARM::VLD2q32Pseudo_UPD:
1016 case ARM::VLD3d8Pseudo:
1017 case ARM::VLD3d16Pseudo:
1018 case ARM::VLD3d32Pseudo:
1019 case ARM::VLD1d64TPseudo:
1020 case ARM::VLD3d8Pseudo_UPD:
1021 case ARM::VLD3d16Pseudo_UPD:
1022 case ARM::VLD3d32Pseudo_UPD:
1023 case ARM::VLD1d64TPseudo_UPD:
1024 case ARM::VLD3q8Pseudo_UPD:
1025 case ARM::VLD3q16Pseudo_UPD:
1026 case ARM::VLD3q32Pseudo_UPD:
1027 case ARM::VLD3q8oddPseudo_UPD:
1028 case ARM::VLD3q16oddPseudo_UPD:
1029 case ARM::VLD3q32oddPseudo_UPD:
1030 case ARM::VLD4d8Pseudo:
1031 case ARM::VLD4d16Pseudo:
1032 case ARM::VLD4d32Pseudo:
1033 case ARM::VLD1d64QPseudo:
1034 case ARM::VLD4d8Pseudo_UPD:
1035 case ARM::VLD4d16Pseudo_UPD:
1036 case ARM::VLD4d32Pseudo_UPD:
1037 case ARM::VLD1d64QPseudo_UPD:
1038 case ARM::VLD4q8Pseudo_UPD:
1039 case ARM::VLD4q16Pseudo_UPD:
1040 case ARM::VLD4q32Pseudo_UPD:
1041 case ARM::VLD4q8oddPseudo_UPD:
1042 case ARM::VLD4q16oddPseudo_UPD:
1043 case ARM::VLD4q32oddPseudo_UPD:
1044 case ARM::VLD1DUPq8Pseudo:
1045 case ARM::VLD1DUPq16Pseudo:
1046 case ARM::VLD1DUPq32Pseudo:
1047 case ARM::VLD1DUPq8Pseudo_UPD:
1048 case ARM::VLD1DUPq16Pseudo_UPD:
1049 case ARM::VLD1DUPq32Pseudo_UPD:
1050 case ARM::VLD2DUPd8Pseudo:
1051 case ARM::VLD2DUPd16Pseudo:
1052 case ARM::VLD2DUPd32Pseudo:
1053 case ARM::VLD2DUPd8Pseudo_UPD:
1054 case ARM::VLD2DUPd16Pseudo_UPD:
1055 case ARM::VLD2DUPd32Pseudo_UPD:
1056 case ARM::VLD3DUPd8Pseudo:
1057 case ARM::VLD3DUPd16Pseudo:
1058 case ARM::VLD3DUPd32Pseudo:
1059 case ARM::VLD3DUPd8Pseudo_UPD:
1060 case ARM::VLD3DUPd16Pseudo_UPD:
1061 case ARM::VLD3DUPd32Pseudo_UPD:
1062 case ARM::VLD4DUPd8Pseudo:
1063 case ARM::VLD4DUPd16Pseudo:
1064 case ARM::VLD4DUPd32Pseudo:
1065 case ARM::VLD4DUPd8Pseudo_UPD:
1066 case ARM::VLD4DUPd16Pseudo_UPD:
1067 case ARM::VLD4DUPd32Pseudo_UPD:
1071 case ARM::VST1q8Pseudo:
1072 case ARM::VST1q16Pseudo:
1073 case ARM::VST1q32Pseudo:
1074 case ARM::VST1q64Pseudo:
1075 case ARM::VST1q8Pseudo_UPD:
1076 case ARM::VST1q16Pseudo_UPD:
1077 case ARM::VST1q32Pseudo_UPD:
1078 case ARM::VST1q64Pseudo_UPD:
1079 case ARM::VST2d8Pseudo:
1080 case ARM::VST2d16Pseudo:
1081 case ARM::VST2d32Pseudo:
1082 case ARM::VST2q8Pseudo:
1083 case ARM::VST2q16Pseudo:
1084 case ARM::VST2q32Pseudo:
1085 case ARM::VST2d8Pseudo_UPD:
1086 case ARM::VST2d16Pseudo_UPD:
1087 case ARM::VST2d32Pseudo_UPD:
1088 case ARM::VST2q8Pseudo_UPD:
1089 case ARM::VST2q16Pseudo_UPD:
1090 case ARM::VST2q32Pseudo_UPD:
1091 case ARM::VST3d8Pseudo:
1092 case ARM::VST3d16Pseudo:
1093 case ARM::VST3d32Pseudo:
1094 case ARM::VST1d64TPseudo:
1095 case ARM::VST3d8Pseudo_UPD:
1096 case ARM::VST3d16Pseudo_UPD:
1097 case ARM::VST3d32Pseudo_UPD:
1098 case ARM::VST1d64TPseudo_UPD:
1099 case ARM::VST3q8Pseudo_UPD:
1100 case ARM::VST3q16Pseudo_UPD:
1101 case ARM::VST3q32Pseudo_UPD:
1102 case ARM::VST3q8oddPseudo_UPD:
1103 case ARM::VST3q16oddPseudo_UPD:
1104 case ARM::VST3q32oddPseudo_UPD:
1105 case ARM::VST4d8Pseudo:
1106 case ARM::VST4d16Pseudo:
1107 case ARM::VST4d32Pseudo:
1108 case ARM::VST1d64QPseudo:
1109 case ARM::VST4d8Pseudo_UPD:
1110 case ARM::VST4d16Pseudo_UPD:
1111 case ARM::VST4d32Pseudo_UPD:
1112 case ARM::VST1d64QPseudo_UPD:
1113 case ARM::VST4q8Pseudo_UPD:
1114 case ARM::VST4q16Pseudo_UPD:
1115 case ARM::VST4q32Pseudo_UPD:
1116 case ARM::VST4q8oddPseudo_UPD:
1117 case ARM::VST4q16oddPseudo_UPD:
1118 case ARM::VST4q32oddPseudo_UPD:
1122 case ARM::VLD1LNq8Pseudo:
1123 case ARM::VLD1LNq16Pseudo:
1124 case ARM::VLD1LNq32Pseudo:
1125 case ARM::VLD1LNq8Pseudo_UPD:
1126 case ARM::VLD1LNq16Pseudo_UPD:
1127 case ARM::VLD1LNq32Pseudo_UPD:
1128 case ARM::VLD2LNd8Pseudo:
1129 case ARM::VLD2LNd16Pseudo:
1130 case ARM::VLD2LNd32Pseudo:
1131 case ARM::VLD2LNq16Pseudo:
1132 case ARM::VLD2LNq32Pseudo:
1133 case ARM::VLD2LNd8Pseudo_UPD:
1134 case ARM::VLD2LNd16Pseudo_UPD:
1135 case ARM::VLD2LNd32Pseudo_UPD:
1136 case ARM::VLD2LNq16Pseudo_UPD:
1137 case ARM::VLD2LNq32Pseudo_UPD:
1138 case ARM::VLD3LNd8Pseudo:
1139 case ARM::VLD3LNd16Pseudo:
1140 case ARM::VLD3LNd32Pseudo:
1141 case ARM::VLD3LNq16Pseudo:
1142 case ARM::VLD3LNq32Pseudo:
1143 case ARM::VLD3LNd8Pseudo_UPD:
1144 case ARM::VLD3LNd16Pseudo_UPD:
1145 case ARM::VLD3LNd32Pseudo_UPD:
1146 case ARM::VLD3LNq16Pseudo_UPD:
1147 case ARM::VLD3LNq32Pseudo_UPD:
1148 case ARM::VLD4LNd8Pseudo:
1149 case ARM::VLD4LNd16Pseudo:
1150 case ARM::VLD4LNd32Pseudo:
1151 case ARM::VLD4LNq16Pseudo:
1152 case ARM::VLD4LNq32Pseudo:
1153 case ARM::VLD4LNd8Pseudo_UPD:
1154 case ARM::VLD4LNd16Pseudo_UPD:
1155 case ARM::VLD4LNd32Pseudo_UPD:
1156 case ARM::VLD4LNq16Pseudo_UPD:
1157 case ARM::VLD4LNq32Pseudo_UPD:
1158 case ARM::VST1LNq8Pseudo:
1159 case ARM::VST1LNq16Pseudo:
1160 case ARM::VST1LNq32Pseudo:
1161 case ARM::VST1LNq8Pseudo_UPD:
1162 case ARM::VST1LNq16Pseudo_UPD:
1163 case ARM::VST1LNq32Pseudo_UPD:
1164 case ARM::VST2LNd8Pseudo:
1165 case ARM::VST2LNd16Pseudo:
1166 case ARM::VST2LNd32Pseudo:
1167 case ARM::VST2LNq16Pseudo:
1168 case ARM::VST2LNq32Pseudo:
1169 case ARM::VST2LNd8Pseudo_UPD:
1170 case ARM::VST2LNd16Pseudo_UPD:
1171 case ARM::VST2LNd32Pseudo_UPD:
1172 case ARM::VST2LNq16Pseudo_UPD:
1173 case ARM::VST2LNq32Pseudo_UPD:
1174 case ARM::VST3LNd8Pseudo:
1175 case ARM::VST3LNd16Pseudo:
1176 case ARM::VST3LNd32Pseudo:
1177 case ARM::VST3LNq16Pseudo:
1178 case ARM::VST3LNq32Pseudo:
1179 case ARM::VST3LNd8Pseudo_UPD:
1180 case ARM::VST3LNd16Pseudo_UPD:
1181 case ARM::VST3LNd32Pseudo_UPD:
1182 case ARM::VST3LNq16Pseudo_UPD:
1183 case ARM::VST3LNq32Pseudo_UPD:
1184 case ARM::VST4LNd8Pseudo:
1185 case ARM::VST4LNd16Pseudo:
1186 case ARM::VST4LNd32Pseudo:
1187 case ARM::VST4LNq16Pseudo:
1188 case ARM::VST4LNq32Pseudo:
1189 case ARM::VST4LNd8Pseudo_UPD:
1190 case ARM::VST4LNd16Pseudo_UPD:
1191 case ARM::VST4LNd32Pseudo_UPD:
1192 case ARM::VST4LNq16Pseudo_UPD:
1193 case ARM::VST4LNq32Pseudo_UPD:
1197 case ARM::VTBL2Pseudo: ExpandVTBL(MBBI, ARM::VTBL2, false, 2); return true;
1198 case ARM::VTBL3Pseudo: ExpandVTBL(MBBI, ARM::VTBL3, false, 3); return true;
1199 case ARM::VTBL4Pseudo: ExpandVTBL(MBBI, ARM::VTBL4, false, 4); return true;
1200 case ARM::VTBX2Pseudo: ExpandVTBL(MBBI, ARM::VTBX2, true, 2); return true;
1201 case ARM::VTBX3Pseudo: ExpandVTBL(MBBI, ARM::VTBX3, true, 3); return true;
1202 case ARM::VTBX4Pseudo: ExpandVTBL(MBBI, ARM::VTBX4, true, 4); return true;
1208 bool ARMExpandPseudo::ExpandMBB(MachineBasicBlock &MBB) {
1209 bool Modified = false;
1211 MachineBasicBlock::iterator MBBI = MBB.begin(), E = MBB.end();
1213 MachineBasicBlock::iterator NMBBI = llvm::next(MBBI);
1214 Modified |= ExpandMI(MBB, MBBI);
1221 bool ARMExpandPseudo::runOnMachineFunction(MachineFunction &MF) {
1222 TII = static_cast<const ARMBaseInstrInfo*>(MF.getTarget().getInstrInfo());
1223 TRI = MF.getTarget().getRegisterInfo();
1224 STI = &MF.getTarget().getSubtarget<ARMSubtarget>();
1225 AFI = MF.getInfo<ARMFunctionInfo>();
1227 bool Modified = false;
1228 for (MachineFunction::iterator MFI = MF.begin(), E = MF.end(); MFI != E;
1230 Modified |= ExpandMBB(*MFI);
1234 /// createARMExpandPseudoPass - returns an instance of the pseudo instruction
1236 FunctionPass *llvm::createARMExpandPseudoPass() {
1237 return new ARMExpandPseudo();