LLVM  14.0.0git
HexagonMCCompound.cpp
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1 //=== HexagonMCCompound.cpp - Hexagon Compound checker -------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is looks at a packet and tries to form compound insns
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "MCTargetDesc/HexagonBaseInfo.h"
14 #include "MCTargetDesc/HexagonMCInstrInfo.h"
15 #include "MCTargetDesc/HexagonMCShuffler.h"
16 #include "llvm/MC/MCContext.h"
17 #include "llvm/MC/MCExpr.h"
18 #include "llvm/MC/MCInst.h"
19 #include "llvm/Support/Debug.h"
20 #include "llvm/Support/ErrorHandling.h"
21 #include "llvm/Support/raw_ostream.h"
22 #include <cassert>
23 #include <cstdint>
24 
25 using namespace llvm;
26 using namespace Hexagon;
27 
28 #define DEBUG_TYPE "hexagon-mccompound"
29 
30 enum OpcodeIndex {
31  fp0_jump_nt = 0,
32  fp0_jump_t,
33  fp1_jump_nt,
34  fp1_jump_t,
35  tp0_jump_nt,
36  tp0_jump_t,
37  tp1_jump_nt,
38  tp1_jump_t
39 };
40 
41 static const unsigned tstBitOpcode[8] = {
42  J4_tstbit0_fp0_jump_nt, J4_tstbit0_fp0_jump_t, J4_tstbit0_fp1_jump_nt,
43  J4_tstbit0_fp1_jump_t, J4_tstbit0_tp0_jump_nt, J4_tstbit0_tp0_jump_t,
44  J4_tstbit0_tp1_jump_nt, J4_tstbit0_tp1_jump_t};
45 static const unsigned cmpeqBitOpcode[8] = {
46  J4_cmpeq_fp0_jump_nt, J4_cmpeq_fp0_jump_t, J4_cmpeq_fp1_jump_nt,
47  J4_cmpeq_fp1_jump_t, J4_cmpeq_tp0_jump_nt, J4_cmpeq_tp0_jump_t,
48  J4_cmpeq_tp1_jump_nt, J4_cmpeq_tp1_jump_t};
49 static const unsigned cmpgtBitOpcode[8] = {
50  J4_cmpgt_fp0_jump_nt, J4_cmpgt_fp0_jump_t, J4_cmpgt_fp1_jump_nt,
51  J4_cmpgt_fp1_jump_t, J4_cmpgt_tp0_jump_nt, J4_cmpgt_tp0_jump_t,
52  J4_cmpgt_tp1_jump_nt, J4_cmpgt_tp1_jump_t};
53 static const unsigned cmpgtuBitOpcode[8] = {
54  J4_cmpgtu_fp0_jump_nt, J4_cmpgtu_fp0_jump_t, J4_cmpgtu_fp1_jump_nt,
55  J4_cmpgtu_fp1_jump_t, J4_cmpgtu_tp0_jump_nt, J4_cmpgtu_tp0_jump_t,
56  J4_cmpgtu_tp1_jump_nt, J4_cmpgtu_tp1_jump_t};
57 static const unsigned cmpeqiBitOpcode[8] = {
58  J4_cmpeqi_fp0_jump_nt, J4_cmpeqi_fp0_jump_t, J4_cmpeqi_fp1_jump_nt,
59  J4_cmpeqi_fp1_jump_t, J4_cmpeqi_tp0_jump_nt, J4_cmpeqi_tp0_jump_t,
60  J4_cmpeqi_tp1_jump_nt, J4_cmpeqi_tp1_jump_t};
61 static const unsigned cmpgtiBitOpcode[8] = {
62  J4_cmpgti_fp0_jump_nt, J4_cmpgti_fp0_jump_t, J4_cmpgti_fp1_jump_nt,
63  J4_cmpgti_fp1_jump_t, J4_cmpgti_tp0_jump_nt, J4_cmpgti_tp0_jump_t,
64  J4_cmpgti_tp1_jump_nt, J4_cmpgti_tp1_jump_t};
65 static const unsigned cmpgtuiBitOpcode[8] = {
66  J4_cmpgtui_fp0_jump_nt, J4_cmpgtui_fp0_jump_t, J4_cmpgtui_fp1_jump_nt,
67  J4_cmpgtui_fp1_jump_t, J4_cmpgtui_tp0_jump_nt, J4_cmpgtui_tp0_jump_t,
68  J4_cmpgtui_tp1_jump_nt, J4_cmpgtui_tp1_jump_t};
69 static const unsigned cmpeqn1BitOpcode[8] = {
70  J4_cmpeqn1_fp0_jump_nt, J4_cmpeqn1_fp0_jump_t, J4_cmpeqn1_fp1_jump_nt,
71  J4_cmpeqn1_fp1_jump_t, J4_cmpeqn1_tp0_jump_nt, J4_cmpeqn1_tp0_jump_t,
72  J4_cmpeqn1_tp1_jump_nt, J4_cmpeqn1_tp1_jump_t};
73 static const unsigned cmpgtn1BitOpcode[8] = {
74  J4_cmpgtn1_fp0_jump_nt, J4_cmpgtn1_fp0_jump_t, J4_cmpgtn1_fp1_jump_nt,
75  J4_cmpgtn1_fp1_jump_t, J4_cmpgtn1_tp0_jump_nt, J4_cmpgtn1_tp0_jump_t,
76  J4_cmpgtn1_tp1_jump_nt, J4_cmpgtn1_tp1_jump_t,
77 };
78 
79 // enum HexagonII::CompoundGroup
80 static unsigned getCompoundCandidateGroup(MCInst const &MI, bool IsExtended) {
81  unsigned DstReg, SrcReg, Src1Reg, Src2Reg;
82 
83  switch (MI.getOpcode()) {
84  default:
85  return HexagonII::HCG_None;
86  //
87  // Compound pairs.
88  // "p0=cmp.eq(Rs16,Rt16); if (p0.new) jump:nt #r9:2"
89  // "Rd16=#U6 ; jump #r9:2"
90  // "Rd16=Rs16 ; jump #r9:2"
91  //
92  case Hexagon::C2_cmpeq:
93  case Hexagon::C2_cmpgt:
94  case Hexagon::C2_cmpgtu:
95  if (IsExtended)
96  return HexagonII::HCG_None;
97  DstReg = MI.getOperand(0).getReg();
98  Src1Reg = MI.getOperand(1).getReg();
99  Src2Reg = MI.getOperand(2).getReg();
100  if ((Hexagon::P0 == DstReg || Hexagon::P1 == DstReg) &&
101  HexagonMCInstrInfo::isIntRegForSubInst(Src1Reg) &&
102  HexagonMCInstrInfo::isIntRegForSubInst(Src2Reg))
103  return HexagonII::HCG_A;
104  break;
105  case Hexagon::C2_cmpeqi:
106  case Hexagon::C2_cmpgti:
107  case Hexagon::C2_cmpgtui:
108  if (IsExtended)
109  return HexagonII::HCG_None;
110  // P0 = cmp.eq(Rs,#u2)
111  DstReg = MI.getOperand(0).getReg();
112  SrcReg = MI.getOperand(1).getReg();
113  if ((Hexagon::P0 == DstReg || Hexagon::P1 == DstReg) &&
114  HexagonMCInstrInfo::isIntRegForSubInst(SrcReg) &&
115  (HexagonMCInstrInfo::inRange<5>(MI, 2) ||
116  HexagonMCInstrInfo::minConstant(MI, 2) == -1))
117  return HexagonII::HCG_A;
118  break;
119  case Hexagon::A2_tfr:
120  if (IsExtended)
121  return HexagonII::HCG_None;
122  // Rd = Rs
123  DstReg = MI.getOperand(0).getReg();
124  SrcReg = MI.getOperand(1).getReg();
125  if (HexagonMCInstrInfo::isIntRegForSubInst(DstReg) &&
126  HexagonMCInstrInfo::isIntRegForSubInst(SrcReg))
127  return HexagonII::HCG_A;
128  break;
129  case Hexagon::A2_tfrsi:
130  if (IsExtended)
131  return HexagonII::HCG_None;
132  // Rd = #u6
133  DstReg = MI.getOperand(0).getReg();
134  if (HexagonMCInstrInfo::minConstant(MI, 1) <= 63 &&
135  HexagonMCInstrInfo::minConstant(MI, 1) >= 0 &&
136  HexagonMCInstrInfo::isIntRegForSubInst(DstReg))
137  return HexagonII::HCG_A;
138  break;
139  case Hexagon::S2_tstbit_i:
140  if (IsExtended)
141  return HexagonII::HCG_None;
142  DstReg = MI.getOperand(0).getReg();
143  Src1Reg = MI.getOperand(1).getReg();
144  if ((Hexagon::P0 == DstReg || Hexagon::P1 == DstReg) &&
145  HexagonMCInstrInfo::isIntRegForSubInst(Src1Reg) &&
146  HexagonMCInstrInfo::minConstant(MI, 2) == 0)
147  return HexagonII::HCG_A;
148  break;
149  // The fact that .new form is used pretty much guarantees
150  // that predicate register will match. Nevertheless,
151  // there could be some false positives without additional
152  // checking.
153  case Hexagon::J2_jumptnew:
154  case Hexagon::J2_jumpfnew:
155  case Hexagon::J2_jumptnewpt:
156  case Hexagon::J2_jumpfnewpt:
157  Src1Reg = MI.getOperand(0).getReg();
158  if (Hexagon::P0 == Src1Reg || Hexagon::P1 == Src1Reg)
159  return HexagonII::HCG_B;
160  break;
161  // Transfer and jump:
162  // Rd=#U6 ; jump #r9:2
163  // Rd=Rs ; jump #r9:2
164  // Do not test for jump range here.
165  case Hexagon::J2_jump:
166  case Hexagon::RESTORE_DEALLOC_RET_JMP_V4:
167  return HexagonII::HCG_C;
168  break;
169  }
170 
171  return HexagonII::HCG_None;
172 }
173 
174 /// getCompoundOp - Return the index from 0-7 into the above opcode lists.
175 static unsigned getCompoundOp(MCInst const &HMCI) {
176  const MCOperand &Predicate = HMCI.getOperand(0);
177  unsigned PredReg = Predicate.getReg();
178 
179  assert((PredReg == Hexagon::P0) || (PredReg == Hexagon::P1) ||
180  (PredReg == Hexagon::P2) || (PredReg == Hexagon::P3));
181 
182  switch (HMCI.getOpcode()) {
183  default:
184  llvm_unreachable("Expected match not found.\n");
185  break;
186  case Hexagon::J2_jumpfnew:
187  return (PredReg == Hexagon::P0) ? fp0_jump_nt : fp1_jump_nt;
188  case Hexagon::J2_jumpfnewpt:
189  return (PredReg == Hexagon::P0) ? fp0_jump_t : fp1_jump_t;
190  case Hexagon::J2_jumptnew:
191  return (PredReg == Hexagon::P0) ? tp0_jump_nt : tp1_jump_nt;
192  case Hexagon::J2_jumptnewpt:
193  return (PredReg == Hexagon::P0) ? tp0_jump_t : tp1_jump_t;
194  }
195 }
196 
197 static MCInst *getCompoundInsn(MCContext &Context, MCInst const &L,
198  MCInst const &R) {
199  MCInst *CompoundInsn = nullptr;
200  unsigned compoundOpcode;
201  MCOperand Rs, Rt;
202  int64_t Value;
203  bool Success;
204 
205  switch (L.getOpcode()) {
206  default:
207  LLVM_DEBUG(dbgs() << "Possible compound ignored\n");
208  return CompoundInsn;
209 
210  case Hexagon::A2_tfrsi:
211  Rt = L.getOperand(0);
212  compoundOpcode = J4_jumpseti;
213  CompoundInsn = Context.createMCInst();
214  CompoundInsn->setOpcode(compoundOpcode);
215 
216  CompoundInsn->addOperand(Rt);
217  CompoundInsn->addOperand(L.getOperand(1)); // Immediate
218  CompoundInsn->addOperand(R.getOperand(0)); // Jump target
219  break;
220 
221  case Hexagon::A2_tfr:
222  Rt = L.getOperand(0);
223  Rs = L.getOperand(1);
224 
225  compoundOpcode = J4_jumpsetr;
226  CompoundInsn = Context.createMCInst();
227  CompoundInsn->setOpcode(compoundOpcode);
228  CompoundInsn->addOperand(Rt);
229  CompoundInsn->addOperand(Rs);
230  CompoundInsn->addOperand(R.getOperand(0)); // Jump target.
231 
232  break;
233 
234  case Hexagon::C2_cmpeq:
235  LLVM_DEBUG(dbgs() << "CX: C2_cmpeq\n");
236  Rs = L.getOperand(1);
237  Rt = L.getOperand(2);
238 
239  compoundOpcode = cmpeqBitOpcode[getCompoundOp(R)];
240  CompoundInsn = Context.createMCInst();
241  CompoundInsn->setOpcode(compoundOpcode);
242  CompoundInsn->addOperand(Rs);
243  CompoundInsn->addOperand(Rt);
244  CompoundInsn->addOperand(R.getOperand(1));
245  break;
246 
247  case Hexagon::C2_cmpgt:
248  LLVM_DEBUG(dbgs() << "CX: C2_cmpgt\n");
249  Rs = L.getOperand(1);
250  Rt = L.getOperand(2);
251 
252  compoundOpcode = cmpgtBitOpcode[getCompoundOp(R)];
253  CompoundInsn = Context.createMCInst();
254  CompoundInsn->setOpcode(compoundOpcode);
255  CompoundInsn->addOperand(Rs);
256  CompoundInsn->addOperand(Rt);
257  CompoundInsn->addOperand(R.getOperand(1));
258  break;
259 
260  case Hexagon::C2_cmpgtu:
261  LLVM_DEBUG(dbgs() << "CX: C2_cmpgtu\n");
262  Rs = L.getOperand(1);
263  Rt = L.getOperand(2);
264 
265  compoundOpcode = cmpgtuBitOpcode[getCompoundOp(R)];
266  CompoundInsn = Context.createMCInst();
267  CompoundInsn->setOpcode(compoundOpcode);
268  CompoundInsn->addOperand(Rs);
269  CompoundInsn->addOperand(Rt);
270  CompoundInsn->addOperand(R.getOperand(1));
271  break;
272 
273  case Hexagon::C2_cmpeqi:
274  LLVM_DEBUG(dbgs() << "CX: C2_cmpeqi\n");
275  Success = L.getOperand(2).getExpr()->evaluateAsAbsolute(Value);
276  (void)Success;
277  assert(Success);
278  if (Value == -1)
279  compoundOpcode = cmpeqn1BitOpcode[getCompoundOp(R)];
280  else
281  compoundOpcode = cmpeqiBitOpcode[getCompoundOp(R)];
282 
283  Rs = L.getOperand(1);
284  CompoundInsn = Context.createMCInst();
285  CompoundInsn->setOpcode(compoundOpcode);
286  CompoundInsn->addOperand(Rs);
287  CompoundInsn->addOperand(L.getOperand(2));
288  CompoundInsn->addOperand(R.getOperand(1));
289  break;
290 
291  case Hexagon::C2_cmpgti:
292  LLVM_DEBUG(dbgs() << "CX: C2_cmpgti\n");
293  Success = L.getOperand(2).getExpr()->evaluateAsAbsolute(Value);
294  (void)Success;
295  assert(Success);
296  if (Value == -1)
297  compoundOpcode = cmpgtn1BitOpcode[getCompoundOp(R)];
298  else
299  compoundOpcode = cmpgtiBitOpcode[getCompoundOp(R)];
300 
301  Rs = L.getOperand(1);
302  CompoundInsn = Context.createMCInst();
303  CompoundInsn->setOpcode(compoundOpcode);
304  CompoundInsn->addOperand(Rs);
305  CompoundInsn->addOperand(L.getOperand(2));
306  CompoundInsn->addOperand(R.getOperand(1));
307  break;
308 
309  case Hexagon::C2_cmpgtui:
310  LLVM_DEBUG(dbgs() << "CX: C2_cmpgtui\n");
311  Rs = L.getOperand(1);
312  compoundOpcode = cmpgtuiBitOpcode[getCompoundOp(R)];
313  CompoundInsn = Context.createMCInst();
314  CompoundInsn->setOpcode(compoundOpcode);
315  CompoundInsn->addOperand(Rs);
316  CompoundInsn->addOperand(L.getOperand(2));
317  CompoundInsn->addOperand(R.getOperand(1));
318  break;
319 
320  case Hexagon::S2_tstbit_i:
321  LLVM_DEBUG(dbgs() << "CX: S2_tstbit_i\n");
322  Rs = L.getOperand(1);
323  compoundOpcode = tstBitOpcode[getCompoundOp(R)];
324  CompoundInsn = Context.createMCInst();
325  CompoundInsn->setOpcode(compoundOpcode);
326  CompoundInsn->addOperand(Rs);
327  CompoundInsn->addOperand(R.getOperand(1));
328  break;
329  }
330 
331  return CompoundInsn;
332 }
333 
334 /// Non-Symmetrical. See if these two instructions are fit for compound pair.
335 static bool isOrderedCompoundPair(MCInst const &MIa, bool IsExtendedA,
336  MCInst const &MIb, bool IsExtendedB) {
337  unsigned MIaG = getCompoundCandidateGroup(MIa, IsExtendedA);
338  unsigned MIbG = getCompoundCandidateGroup(MIb, IsExtendedB);
339  // We have two candidates - check that this is the same register
340  // we are talking about.
341  unsigned Opca = MIa.getOpcode();
342  if (MIaG == HexagonII::HCG_A && MIbG == HexagonII::HCG_C &&
343  (Opca == Hexagon::A2_tfr || Opca == Hexagon::A2_tfrsi))
344  return true;
345  return ((MIaG == HexagonII::HCG_A && MIbG == HexagonII::HCG_B) &&
346  (MIa.getOperand(0).getReg() == MIb.getOperand(0).getReg()));
347 }
348 
349 static bool lookForCompound(MCInstrInfo const &MCII, MCContext &Context,
350  MCInst &MCI) {
351  assert(HexagonMCInstrInfo::isBundle(MCI));
352  bool JExtended = false;
353  for (MCInst::iterator J =
354  MCI.begin() + HexagonMCInstrInfo::bundleInstructionsOffset;
355  J != MCI.end(); ++J) {
356  MCInst const *JumpInst = J->getInst();
357  if (HexagonMCInstrInfo::isImmext(*JumpInst)) {
358  JExtended = true;
359  continue;
360  }
361  if (HexagonMCInstrInfo::getType(MCII, *JumpInst) == HexagonII::TypeJ) {
362  // Try to pair with another insn (B)undled with jump.
363  bool BExtended = false;
364  for (MCInst::iterator B =
365  MCI.begin() + HexagonMCInstrInfo::bundleInstructionsOffset;
366  B != MCI.end(); ++B) {
367  MCInst const *Inst = B->getInst();
368  if (JumpInst == Inst)
369  continue;
370  if (HexagonMCInstrInfo::isImmext(*Inst)) {
371  BExtended = true;
372  continue;
373  }
374  LLVM_DEBUG(dbgs() << "J,B: " << JumpInst->getOpcode() << ","
375  << Inst->getOpcode() << "\n");
376  if (isOrderedCompoundPair(*Inst, BExtended, *JumpInst, JExtended)) {
377  MCInst *CompoundInsn = getCompoundInsn(Context, *Inst, *JumpInst);
378  if (CompoundInsn) {
379  LLVM_DEBUG(dbgs() << "B: " << Inst->getOpcode() << ","
380  << JumpInst->getOpcode() << " Compounds to "
381  << CompoundInsn->getOpcode() << "\n");
382  J->setInst(CompoundInsn);
383  MCI.erase(B);
384  return true;
385  }
386  }
387  BExtended = false;
388  }
389  }
390  JExtended = false;
391  }
392  return false;
393 }
394 
395 /// tryCompound - Given a bundle check for compound insns when one
396 /// is found update the contents fo the bundle with the compound insn.
397 /// If a compound instruction is found then the bundle will have one
398 /// additional slot.
399 void HexagonMCInstrInfo::tryCompound(MCInstrInfo const &MCII, MCSubtargetInfo const &STI,
400  MCContext &Context, MCInst &MCI) {
401  assert(HexagonMCInstrInfo::isBundle(MCI) &&
402  "Non-Bundle where Bundle expected");
403 
404  // By definition a compound must have 2 insn.
405  if (MCI.size() < 2)
406  return;
407 
408  bool StartedValid = llvm::HexagonMCShuffle(Context, false, MCII, STI, MCI);
409 
410  // Create a vector, needed to keep the order of jump instructions.
411  MCInst CheckList(MCI);
412 
413  // Look for compounds until none are found, only update the bundle when
414  // a compound is found.
415  while (lookForCompound(MCII, Context, CheckList)) {
416  // Keep the original bundle around in case the shuffle fails.
417  MCInst OriginalBundle(MCI);
418 
419  // Need to update the bundle.
420  MCI = CheckList;
421 
422  if (StartedValid &&
423  !llvm::HexagonMCShuffle(Context, false, MCII, STI, MCI)) {
424  LLVM_DEBUG(dbgs() << "Found ERROR\n");
425  MCI = OriginalBundle;
426  }
427  }
428 }
lookForCompound
static bool lookForCompound(MCInstrInfo const &MCII, MCContext &Context, MCInst &MCI)
Definition: HexagonMCCompound.cpp:349
MI
IRTranslator LLVM IR MI
Definition: IRTranslator.cpp:105
llvm
This file implements support for optimizing divisions by a constant.
Definition: AllocatorList.h:23
llvm::HexagonMCInstrInfo::minConstant
int64_t minConstant(MCInst const &MCI, size_t Index)
Definition: HexagonMCInstrInfo.cpp:859
llvm::HexagonII::HCG_C
@ HCG_C
Definition: HexagonBaseInfo.h:238
llvm::MCContext
Context object for machine code objects.
Definition: MCContext.h:72
tp1_jump_t
@ tp1_jump_t
Definition: HexagonMCCompound.cpp:38
ErrorHandling.h
tstBitOpcode
static const unsigned tstBitOpcode[8]
Definition: HexagonMCCompound.cpp:41
llvm::HexagonMCInstrInfo::isImmext
bool isImmext(MCInst const &MCI)
Definition: HexagonMCInstrInfo.cpp:635
fp1_jump_t
@ fp1_jump_t
Definition: HexagonMCCompound.cpp:34
llvm::HexagonII::HCG_None
@ HCG_None
Definition: HexagonBaseInfo.h:235
llvm::MCInst
Instances of this class represent a single low-level machine instruction.
Definition: MCInst.h:184
llvm::HexagonII::HCG_A
@ HCG_A
Definition: HexagonBaseInfo.h:236
llvm::HexagonMCInstrInfo::bundleInstructionsOffset
const size_t bundleInstructionsOffset
Definition: HexagonMCInstrInfo.h:78
tp0_jump_nt
@ tp0_jump_nt
Definition: HexagonMCCompound.cpp:35
LLVM_DEBUG
#define LLVM_DEBUG(X)
Definition: Debug.h:101
HexagonBaseInfo.h
llvm::MCInst::setOpcode
void setOpcode(unsigned Op)
Definition: MCInst.h:197
Context
LLVMContext & Context
Definition: NVVMIntrRange.cpp:66
llvm::dbgs
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition: Debug.cpp:163
HexagonMCShuffler.h
P2
This might compile to this xmm1 xorps xmm0 movss xmm0 ret Now consider if the code caused xmm1 to get spilled This might produce this xmm1 movaps xmm0 movaps xmm1 movss xmm0 ret since the reload is only used by these we could fold it into the producing something like xmm1 movaps xmm0 ret saving two instructions The basic idea is that a reload from a spill if only one byte chunk is bring in zeros the one element instead of elements This can be used to simplify a variety of shuffle where the elements are fixed zeros This code generates ugly probably due to costs being off or< 4 x float > * P2
Definition: README-SSE.txt:278
HexagonMCInstrInfo.h
cmpeqBitOpcode
static const unsigned cmpeqBitOpcode[8]
Definition: HexagonMCCompound.cpp:45
MCContext.h
llvm::HexagonMCInstrInfo::isBundle
bool isBundle(MCInst const &MCI)
Definition: HexagonMCInstrInfo.cpp:532
MCInst.h
B
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
fp1_jump_nt
@ fp1_jump_nt
Definition: HexagonMCCompound.cpp:33
llvm::HexagonII::HCG_B
@ HCG_B
Definition: HexagonBaseInfo.h:237
llvm::MCInst::end
iterator end()
Definition: MCInst.h:221
llvm::MCInst::erase
void erase(iterator I)
Definition: MCInst.h:216
cmpeqiBitOpcode
static const unsigned cmpeqiBitOpcode[8]
Definition: HexagonMCCompound.cpp:57
llvm::MCInst::addOperand
void addOperand(const MCOperand Op)
Definition: MCInst.h:210
llvm::HexagonMCInstrInfo::isIntRegForSubInst
bool isIntRegForSubInst(unsigned Reg)
Definition: HexagonMCInstrInfo.cpp:649
getCompoundInsn
static MCInst * getCompoundInsn(MCContext &Context, MCInst const &L, MCInst const &R)
Definition: HexagonMCCompound.cpp:197
llvm::PPC::Predicate
Predicate
Predicate - These are "(BI << 5) | BO" for various predicates.
Definition: PPCPredicates.h:26
cmpgtuBitOpcode
static const unsigned cmpgtuBitOpcode[8]
Definition: HexagonMCCompound.cpp:53
OpcodeIndex
OpcodeIndex
Definition: HexagonMCCompound.cpp:30
llvm::HexagonMCInstrInfo::tryCompound
void tryCompound(MCInstrInfo const &MCII, MCSubtargetInfo const &STI, MCContext &Context, MCInst &MCI)
tryCompound - Given a bundle check for compound insns when one is found update the contents fo the bu...
Definition: HexagonMCCompound.cpp:399
llvm::HexagonMCShuffle
bool HexagonMCShuffle(MCContext &Context, bool Fatal, MCInstrInfo const &MCII, MCSubtargetInfo const &STI, MCInst &MCB)
Definition: HexagonMCShuffler.cpp:104
getCompoundOp
static unsigned getCompoundOp(MCInst const &HMCI)
getCompoundOp - Return the index from 0-7 into the above opcode lists.
Definition: HexagonMCCompound.cpp:175
llvm::MCInst::begin
iterator begin()
Definition: MCInst.h:219
tp0_jump_t
@ tp0_jump_t
Definition: HexagonMCCompound.cpp:36
llvm::MCInst::iterator
SmallVectorImpl< MCOperand >::iterator iterator
Definition: MCInst.h:212
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
llvm::MCInst::size
size_t size() const
Definition: MCInst.h:218
isOrderedCompoundPair
static bool isOrderedCompoundPair(MCInst const &MIa, bool IsExtendedA, MCInst const &MIb, bool IsExtendedB)
Non-Symmetrical. See if these two instructions are fit for compound pair.
Definition: HexagonMCCompound.cpp:335
fp0_jump_nt
@ fp0_jump_nt
Definition: HexagonMCCompound.cpp:31
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:134
cmpeqn1BitOpcode
static const unsigned cmpeqn1BitOpcode[8]
Definition: HexagonMCCompound.cpp:69
getCompoundCandidateGroup
static unsigned getCompoundCandidateGroup(MCInst const &MI, bool IsExtended)
Definition: HexagonMCCompound.cpp:80
cmpgtn1BitOpcode
static const unsigned cmpgtn1BitOpcode[8]
Definition: HexagonMCCompound.cpp:73
llvm::MCInstrInfo
Interface to description of machine instruction set.
Definition: MCInstrInfo.h:25
llvm::HexagonMCInstrInfo::getType
unsigned getType(MCInstrInfo const &MCII, MCInst const &MCI)
Return the Hexagon ISA class for the insn.
Definition: HexagonMCInstrInfo.cpp:416
Success
#define Success
Definition: AArch64Disassembler.cpp:260
cmpgtuiBitOpcode
static const unsigned cmpgtuiBitOpcode[8]
Definition: HexagonMCCompound.cpp:65
llvm::MCOperand::getExpr
const MCExpr * getExpr() const
Definition: MCInst.h:114
llvm::TargetStackID::Value
Value
Definition: TargetFrameLowering.h:27
llvm::MCInst::getOpcode
unsigned getOpcode() const
Definition: MCInst.h:198
llvm::MCInst::getOperand
const MCOperand & getOperand(unsigned i) const
Definition: MCInst.h:206
cmpgtiBitOpcode
static const unsigned cmpgtiBitOpcode[8]
Definition: HexagonMCCompound.cpp:61
llvm::HexagonII::TypeJ
@ TypeJ
Definition: HexagonDepITypes.h:53
llvm::MCOperand
Instances of this class represent operands of the MCInst class.
Definition: MCInst.h:36
raw_ostream.h
MCExpr.h
llvm::MCSubtargetInfo
Generic base class for all target subtargets.
Definition: MCSubtargetInfo.h:75
cmpgtBitOpcode
static const unsigned cmpgtBitOpcode[8]
Definition: HexagonMCCompound.cpp:49
llvm::Value
LLVM Value Representation.
Definition: Value.h:75
fp0_jump_t
@ fp0_jump_t
Definition: HexagonMCCompound.cpp:32
Debug.h
tp1_jump_nt
@ tp1_jump_nt
Definition: HexagonMCCompound.cpp:37
llvm::MCOperand::getReg
unsigned getReg() const
Returns the register number.
Definition: MCInst.h:69
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