xref: /llvm-project/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h (revision a8e1135baa9074f7c088c8e1999561f88699b56e)
1 //==- WebAssemblyMCTargetDesc.h - WebAssembly Target Descriptions -*- C++ -*-=//
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 /// \file
10 /// This file provides WebAssembly-specific target descriptions.
11 ///
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYMCTARGETDESC_H
15 #define LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYMCTARGETDESC_H
16 
17 #include "llvm/BinaryFormat/Wasm.h"
18 #include "llvm/MC/MCContext.h"
19 #include "llvm/MC/MCInstrDesc.h"
20 #include "llvm/Support/CommandLine.h"
21 #include "llvm/Support/DataTypes.h"
22 #include <memory>
23 
24 namespace llvm {
25 
26 class MCAsmBackend;
27 class MCCodeEmitter;
28 class MCInstrInfo;
29 class MCObjectTargetWriter;
30 class Triple;
31 
32 MCCodeEmitter *createWebAssemblyMCCodeEmitter(const MCInstrInfo &MCII,
33                                               MCContext &Ctx);
34 
35 MCAsmBackend *createWebAssemblyAsmBackend(const Triple &TT);
36 
37 std::unique_ptr<MCObjectTargetWriter>
38 createWebAssemblyWasmObjectWriter(bool Is64Bit, bool IsEmscripten);
39 
40 namespace WebAssembly {
41 
42 // Exception handling / setjmp-longjmp handling command-line options
43 extern cl::opt<bool> WasmEnableEmEH;   // asm.js-style EH
44 extern cl::opt<bool> WasmEnableEmSjLj; // asm.js-style SjLJ
45 extern cl::opt<bool> WasmEnableEH;     // EH using Wasm EH instructions
46 extern cl::opt<bool> WasmEnableSjLj;   // SjLj using Wasm EH instructions
47 extern cl::opt<bool> WasmUseLegacyEH;  // Legacy Wasm EH
48 
49 enum OperandType {
50   /// Basic block label in a branch construct.
51   OPERAND_BASIC_BLOCK = MCOI::OPERAND_FIRST_TARGET,
52   /// Local index.
53   OPERAND_LOCAL,
54   /// Global index.
55   OPERAND_GLOBAL,
56   /// 32-bit integer immediates.
57   OPERAND_I32IMM,
58   /// 64-bit integer immediates.
59   OPERAND_I64IMM,
60   /// 32-bit floating-point immediates.
61   OPERAND_F32IMM,
62   /// 64-bit floating-point immediates.
63   OPERAND_F64IMM,
64   /// 8-bit vector lane immediate
65   OPERAND_VEC_I8IMM,
66   /// 16-bit vector lane immediate
67   OPERAND_VEC_I16IMM,
68   /// 32-bit vector lane immediate
69   OPERAND_VEC_I32IMM,
70   /// 64-bit vector lane immediate
71   OPERAND_VEC_I64IMM,
72   /// 32-bit unsigned function indices.
73   OPERAND_FUNCTION32,
74   /// 32-bit unsigned memory offsets.
75   OPERAND_OFFSET32,
76   /// 64-bit unsigned memory offsets.
77   OPERAND_OFFSET64,
78   /// p2align immediate for load and store address alignment.
79   OPERAND_P2ALIGN,
80   /// signature immediate for block/loop.
81   OPERAND_SIGNATURE,
82   /// type signature immediate for call_indirect.
83   OPERAND_TYPEINDEX,
84   /// Tag index.
85   OPERAND_TAG,
86   /// A list of branch targets for br_list.
87   OPERAND_BRLIST,
88   /// 32-bit unsigned table number.
89   OPERAND_TABLE,
90   /// A list of catch clauses for try_table.
91   OPERAND_CATCH_LIST,
92 };
93 } // end namespace WebAssembly
94 
95 namespace WebAssemblyII {
96 
97 /// Target Operand Flag enum.
98 enum TOF {
99   MO_NO_FLAG = 0,
100 
101   // On a symbol operand this indicates that the immediate is a wasm global
102   // index.  The value of the wasm global will be set to the symbol address at
103   // runtime.  This adds a level of indirection similar to the GOT on native
104   // platforms.
105   MO_GOT,
106 
107   // Same as MO_GOT but the address stored in the global is a TLS address.
108   MO_GOT_TLS,
109 
110   // On a symbol operand this indicates that the immediate is the symbol
111   // address relative the __memory_base wasm global.
112   // Only applicable to data symbols.
113   MO_MEMORY_BASE_REL,
114 
115   // On a symbol operand this indicates that the immediate is the symbol
116   // address relative the __tls_base wasm global.
117   // Only applicable to data symbols.
118   MO_TLS_BASE_REL,
119 
120   // On a symbol operand this indicates that the immediate is the symbol
121   // address relative the __table_base wasm global.
122   // Only applicable to function symbols.
123   MO_TABLE_BASE_REL,
124 
125   // On a block signature operand this indicates that this is a destination
126   // block of a (catch_ref) clause in try_table.
127   MO_CATCH_BLOCK_SIG,
128 };
129 
130 } // end namespace WebAssemblyII
131 
132 } // end namespace llvm
133 
134 // Defines symbolic names for WebAssembly registers. This defines a mapping from
135 // register name to register number.
136 //
137 #define GET_REGINFO_ENUM
138 #include "WebAssemblyGenRegisterInfo.inc"
139 
140 // Defines symbolic names for the WebAssembly instructions.
141 //
142 #define GET_INSTRINFO_ENUM
143 #define GET_INSTRINFO_MC_HELPER_DECLS
144 #include "WebAssemblyGenInstrInfo.inc"
145 
146 namespace llvm {
147 namespace WebAssembly {
148 
149 /// Instruction opcodes emitted via means other than CodeGen.
150 static const unsigned Nop = 0x01;
151 static const unsigned End = 0x0b;
152 
153 /// Return the default p2align value for a load or store with the given opcode.
154 inline unsigned GetDefaultP2AlignAny(unsigned Opc) {
155   switch (Opc) {
156 #define WASM_LOAD_STORE(NAME) \
157   case WebAssembly::NAME##_A32: \
158   case WebAssembly::NAME##_A64: \
159   case WebAssembly::NAME##_A32_S: \
160   case WebAssembly::NAME##_A64_S:
161   WASM_LOAD_STORE(LOAD8_S_I32)
162   WASM_LOAD_STORE(LOAD8_U_I32)
163   WASM_LOAD_STORE(LOAD8_S_I64)
164   WASM_LOAD_STORE(LOAD8_U_I64)
165   WASM_LOAD_STORE(ATOMIC_LOAD8_U_I32)
166   WASM_LOAD_STORE(ATOMIC_LOAD8_U_I64)
167   WASM_LOAD_STORE(STORE8_I32)
168   WASM_LOAD_STORE(STORE8_I64)
169   WASM_LOAD_STORE(ATOMIC_STORE8_I32)
170   WASM_LOAD_STORE(ATOMIC_STORE8_I64)
171   WASM_LOAD_STORE(ATOMIC_RMW8_U_ADD_I32)
172   WASM_LOAD_STORE(ATOMIC_RMW8_U_ADD_I64)
173   WASM_LOAD_STORE(ATOMIC_RMW8_U_SUB_I32)
174   WASM_LOAD_STORE(ATOMIC_RMW8_U_SUB_I64)
175   WASM_LOAD_STORE(ATOMIC_RMW8_U_AND_I32)
176   WASM_LOAD_STORE(ATOMIC_RMW8_U_AND_I64)
177   WASM_LOAD_STORE(ATOMIC_RMW8_U_OR_I32)
178   WASM_LOAD_STORE(ATOMIC_RMW8_U_OR_I64)
179   WASM_LOAD_STORE(ATOMIC_RMW8_U_XOR_I32)
180   WASM_LOAD_STORE(ATOMIC_RMW8_U_XOR_I64)
181   WASM_LOAD_STORE(ATOMIC_RMW8_U_XCHG_I32)
182   WASM_LOAD_STORE(ATOMIC_RMW8_U_XCHG_I64)
183   WASM_LOAD_STORE(ATOMIC_RMW8_U_CMPXCHG_I32)
184   WASM_LOAD_STORE(ATOMIC_RMW8_U_CMPXCHG_I64)
185   WASM_LOAD_STORE(LOAD8_SPLAT)
186   WASM_LOAD_STORE(LOAD_LANE_8)
187   WASM_LOAD_STORE(STORE_LANE_I8x16)
188   return 0;
189   WASM_LOAD_STORE(LOAD16_S_I32)
190   WASM_LOAD_STORE(LOAD16_U_I32)
191   WASM_LOAD_STORE(LOAD16_S_I64)
192   WASM_LOAD_STORE(LOAD16_U_I64)
193   WASM_LOAD_STORE(ATOMIC_LOAD16_U_I32)
194   WASM_LOAD_STORE(ATOMIC_LOAD16_U_I64)
195   WASM_LOAD_STORE(STORE16_I32)
196   WASM_LOAD_STORE(STORE16_I64)
197   WASM_LOAD_STORE(ATOMIC_STORE16_I32)
198   WASM_LOAD_STORE(ATOMIC_STORE16_I64)
199   WASM_LOAD_STORE(ATOMIC_RMW16_U_ADD_I32)
200   WASM_LOAD_STORE(ATOMIC_RMW16_U_ADD_I64)
201   WASM_LOAD_STORE(ATOMIC_RMW16_U_SUB_I32)
202   WASM_LOAD_STORE(ATOMIC_RMW16_U_SUB_I64)
203   WASM_LOAD_STORE(ATOMIC_RMW16_U_AND_I32)
204   WASM_LOAD_STORE(ATOMIC_RMW16_U_AND_I64)
205   WASM_LOAD_STORE(ATOMIC_RMW16_U_OR_I32)
206   WASM_LOAD_STORE(ATOMIC_RMW16_U_OR_I64)
207   WASM_LOAD_STORE(ATOMIC_RMW16_U_XOR_I32)
208   WASM_LOAD_STORE(ATOMIC_RMW16_U_XOR_I64)
209   WASM_LOAD_STORE(ATOMIC_RMW16_U_XCHG_I32)
210   WASM_LOAD_STORE(ATOMIC_RMW16_U_XCHG_I64)
211   WASM_LOAD_STORE(ATOMIC_RMW16_U_CMPXCHG_I32)
212   WASM_LOAD_STORE(ATOMIC_RMW16_U_CMPXCHG_I64)
213   WASM_LOAD_STORE(LOAD16_SPLAT)
214   WASM_LOAD_STORE(LOAD_LANE_16)
215   WASM_LOAD_STORE(STORE_LANE_I16x8)
216   WASM_LOAD_STORE(LOAD_F16_F32)
217   WASM_LOAD_STORE(STORE_F16_F32)
218   return 1;
219   WASM_LOAD_STORE(LOAD_I32)
220   WASM_LOAD_STORE(LOAD_F32)
221   WASM_LOAD_STORE(STORE_I32)
222   WASM_LOAD_STORE(STORE_F32)
223   WASM_LOAD_STORE(LOAD32_S_I64)
224   WASM_LOAD_STORE(LOAD32_U_I64)
225   WASM_LOAD_STORE(STORE32_I64)
226   WASM_LOAD_STORE(ATOMIC_LOAD_I32)
227   WASM_LOAD_STORE(ATOMIC_LOAD32_U_I64)
228   WASM_LOAD_STORE(ATOMIC_STORE_I32)
229   WASM_LOAD_STORE(ATOMIC_STORE32_I64)
230   WASM_LOAD_STORE(ATOMIC_RMW_ADD_I32)
231   WASM_LOAD_STORE(ATOMIC_RMW32_U_ADD_I64)
232   WASM_LOAD_STORE(ATOMIC_RMW_SUB_I32)
233   WASM_LOAD_STORE(ATOMIC_RMW32_U_SUB_I64)
234   WASM_LOAD_STORE(ATOMIC_RMW_AND_I32)
235   WASM_LOAD_STORE(ATOMIC_RMW32_U_AND_I64)
236   WASM_LOAD_STORE(ATOMIC_RMW_OR_I32)
237   WASM_LOAD_STORE(ATOMIC_RMW32_U_OR_I64)
238   WASM_LOAD_STORE(ATOMIC_RMW_XOR_I32)
239   WASM_LOAD_STORE(ATOMIC_RMW32_U_XOR_I64)
240   WASM_LOAD_STORE(ATOMIC_RMW_XCHG_I32)
241   WASM_LOAD_STORE(ATOMIC_RMW32_U_XCHG_I64)
242   WASM_LOAD_STORE(ATOMIC_RMW_CMPXCHG_I32)
243   WASM_LOAD_STORE(ATOMIC_RMW32_U_CMPXCHG_I64)
244   WASM_LOAD_STORE(MEMORY_ATOMIC_NOTIFY)
245   WASM_LOAD_STORE(MEMORY_ATOMIC_WAIT32)
246   WASM_LOAD_STORE(LOAD32_SPLAT)
247   WASM_LOAD_STORE(LOAD_ZERO_32)
248   WASM_LOAD_STORE(LOAD_LANE_32)
249   WASM_LOAD_STORE(STORE_LANE_I32x4)
250   return 2;
251   WASM_LOAD_STORE(LOAD_I64)
252   WASM_LOAD_STORE(LOAD_F64)
253   WASM_LOAD_STORE(STORE_I64)
254   WASM_LOAD_STORE(STORE_F64)
255   WASM_LOAD_STORE(ATOMIC_LOAD_I64)
256   WASM_LOAD_STORE(ATOMIC_STORE_I64)
257   WASM_LOAD_STORE(ATOMIC_RMW_ADD_I64)
258   WASM_LOAD_STORE(ATOMIC_RMW_SUB_I64)
259   WASM_LOAD_STORE(ATOMIC_RMW_AND_I64)
260   WASM_LOAD_STORE(ATOMIC_RMW_OR_I64)
261   WASM_LOAD_STORE(ATOMIC_RMW_XOR_I64)
262   WASM_LOAD_STORE(ATOMIC_RMW_XCHG_I64)
263   WASM_LOAD_STORE(ATOMIC_RMW_CMPXCHG_I64)
264   WASM_LOAD_STORE(MEMORY_ATOMIC_WAIT64)
265   WASM_LOAD_STORE(LOAD64_SPLAT)
266   WASM_LOAD_STORE(LOAD_EXTEND_S_I16x8)
267   WASM_LOAD_STORE(LOAD_EXTEND_U_I16x8)
268   WASM_LOAD_STORE(LOAD_EXTEND_S_I32x4)
269   WASM_LOAD_STORE(LOAD_EXTEND_U_I32x4)
270   WASM_LOAD_STORE(LOAD_EXTEND_S_I64x2)
271   WASM_LOAD_STORE(LOAD_EXTEND_U_I64x2)
272   WASM_LOAD_STORE(LOAD_ZERO_64)
273   WASM_LOAD_STORE(LOAD_LANE_64)
274   WASM_LOAD_STORE(STORE_LANE_I64x2)
275   return 3;
276   WASM_LOAD_STORE(LOAD_V128)
277   WASM_LOAD_STORE(STORE_V128)
278     return 4;
279   default:
280     return -1;
281   }
282 #undef WASM_LOAD_STORE
283 }
284 
285 inline unsigned GetDefaultP2Align(unsigned Opc) {
286   auto Align = GetDefaultP2AlignAny(Opc);
287   if (Align == -1U) {
288     llvm_unreachable("Only loads and stores have p2align values");
289   }
290   return Align;
291 }
292 
293 inline bool isConst(unsigned Opc) {
294   switch (Opc) {
295   case WebAssembly::CONST_I32:
296   case WebAssembly::CONST_I32_S:
297   case WebAssembly::CONST_I64:
298   case WebAssembly::CONST_I64_S:
299   case WebAssembly::CONST_F32:
300   case WebAssembly::CONST_F32_S:
301   case WebAssembly::CONST_F64:
302   case WebAssembly::CONST_F64_S:
303   case WebAssembly::CONST_V128_I8x16:
304   case WebAssembly::CONST_V128_I8x16_S:
305   case WebAssembly::CONST_V128_I16x8:
306   case WebAssembly::CONST_V128_I16x8_S:
307   case WebAssembly::CONST_V128_I32x4:
308   case WebAssembly::CONST_V128_I32x4_S:
309   case WebAssembly::CONST_V128_I64x2:
310   case WebAssembly::CONST_V128_I64x2_S:
311   case WebAssembly::CONST_V128_F32x4:
312   case WebAssembly::CONST_V128_F32x4_S:
313   case WebAssembly::CONST_V128_F64x2:
314   case WebAssembly::CONST_V128_F64x2_S:
315     return true;
316   default:
317     return false;
318   }
319 }
320 
321 inline bool isScalarConst(unsigned Opc) {
322   switch (Opc) {
323   case WebAssembly::CONST_I32:
324   case WebAssembly::CONST_I32_S:
325   case WebAssembly::CONST_I64:
326   case WebAssembly::CONST_I64_S:
327   case WebAssembly::CONST_F32:
328   case WebAssembly::CONST_F32_S:
329   case WebAssembly::CONST_F64:
330   case WebAssembly::CONST_F64_S:
331     return true;
332   default:
333     return false;
334   }
335 }
336 
337 inline bool isArgument(unsigned Opc) {
338   switch (Opc) {
339   case WebAssembly::ARGUMENT_i32:
340   case WebAssembly::ARGUMENT_i32_S:
341   case WebAssembly::ARGUMENT_i64:
342   case WebAssembly::ARGUMENT_i64_S:
343   case WebAssembly::ARGUMENT_f32:
344   case WebAssembly::ARGUMENT_f32_S:
345   case WebAssembly::ARGUMENT_f64:
346   case WebAssembly::ARGUMENT_f64_S:
347   case WebAssembly::ARGUMENT_v16i8:
348   case WebAssembly::ARGUMENT_v16i8_S:
349   case WebAssembly::ARGUMENT_v8i16:
350   case WebAssembly::ARGUMENT_v8i16_S:
351   case WebAssembly::ARGUMENT_v4i32:
352   case WebAssembly::ARGUMENT_v4i32_S:
353   case WebAssembly::ARGUMENT_v2i64:
354   case WebAssembly::ARGUMENT_v2i64_S:
355   case WebAssembly::ARGUMENT_v8f16:
356   case WebAssembly::ARGUMENT_v8f16_S:
357   case WebAssembly::ARGUMENT_v4f32:
358   case WebAssembly::ARGUMENT_v4f32_S:
359   case WebAssembly::ARGUMENT_v2f64:
360   case WebAssembly::ARGUMENT_v2f64_S:
361   case WebAssembly::ARGUMENT_funcref:
362   case WebAssembly::ARGUMENT_funcref_S:
363   case WebAssembly::ARGUMENT_externref:
364   case WebAssembly::ARGUMENT_externref_S:
365   case WebAssembly::ARGUMENT_exnref:
366   case WebAssembly::ARGUMENT_exnref_S:
367     return true;
368   default:
369     return false;
370   }
371 }
372 
373 inline bool isCopy(unsigned Opc) {
374   switch (Opc) {
375   case WebAssembly::COPY_I32:
376   case WebAssembly::COPY_I32_S:
377   case WebAssembly::COPY_I64:
378   case WebAssembly::COPY_I64_S:
379   case WebAssembly::COPY_F32:
380   case WebAssembly::COPY_F32_S:
381   case WebAssembly::COPY_F64:
382   case WebAssembly::COPY_F64_S:
383   case WebAssembly::COPY_V128:
384   case WebAssembly::COPY_V128_S:
385   case WebAssembly::COPY_FUNCREF:
386   case WebAssembly::COPY_FUNCREF_S:
387   case WebAssembly::COPY_EXTERNREF:
388   case WebAssembly::COPY_EXTERNREF_S:
389   case WebAssembly::COPY_EXNREF:
390   case WebAssembly::COPY_EXNREF_S:
391     return true;
392   default:
393     return false;
394   }
395 }
396 
397 inline bool isTee(unsigned Opc) {
398   switch (Opc) {
399   case WebAssembly::TEE_I32:
400   case WebAssembly::TEE_I32_S:
401   case WebAssembly::TEE_I64:
402   case WebAssembly::TEE_I64_S:
403   case WebAssembly::TEE_F32:
404   case WebAssembly::TEE_F32_S:
405   case WebAssembly::TEE_F64:
406   case WebAssembly::TEE_F64_S:
407   case WebAssembly::TEE_V128:
408   case WebAssembly::TEE_V128_S:
409   case WebAssembly::TEE_FUNCREF:
410   case WebAssembly::TEE_FUNCREF_S:
411   case WebAssembly::TEE_EXTERNREF:
412   case WebAssembly::TEE_EXTERNREF_S:
413   case WebAssembly::TEE_EXNREF:
414   case WebAssembly::TEE_EXNREF_S:
415     return true;
416   default:
417     return false;
418   }
419 }
420 
421 inline bool isCallDirect(unsigned Opc) {
422   switch (Opc) {
423   case WebAssembly::CALL:
424   case WebAssembly::CALL_S:
425   case WebAssembly::RET_CALL:
426   case WebAssembly::RET_CALL_S:
427     return true;
428   default:
429     return false;
430   }
431 }
432 
433 inline bool isCallIndirect(unsigned Opc) {
434   switch (Opc) {
435   case WebAssembly::CALL_INDIRECT:
436   case WebAssembly::CALL_INDIRECT_S:
437   case WebAssembly::RET_CALL_INDIRECT:
438   case WebAssembly::RET_CALL_INDIRECT_S:
439     return true;
440   default:
441     return false;
442   }
443 }
444 
445 inline bool isBrTable(unsigned Opc) {
446   switch (Opc) {
447   case WebAssembly::BR_TABLE_I32:
448   case WebAssembly::BR_TABLE_I32_S:
449   case WebAssembly::BR_TABLE_I64:
450   case WebAssembly::BR_TABLE_I64_S:
451     return true;
452   default:
453     return false;
454   }
455 }
456 
457 inline bool isMarker(unsigned Opc) {
458   switch (Opc) {
459   case WebAssembly::BLOCK:
460   case WebAssembly::BLOCK_S:
461   case WebAssembly::END_BLOCK:
462   case WebAssembly::END_BLOCK_S:
463   case WebAssembly::LOOP:
464   case WebAssembly::LOOP_S:
465   case WebAssembly::END_LOOP:
466   case WebAssembly::END_LOOP_S:
467   case WebAssembly::TRY:
468   case WebAssembly::TRY_S:
469   case WebAssembly::END_TRY:
470   case WebAssembly::END_TRY_S:
471   case WebAssembly::TRY_TABLE:
472   case WebAssembly::TRY_TABLE_S:
473   case WebAssembly::END_TRY_TABLE:
474   case WebAssembly::END_TRY_TABLE_S:
475     return true;
476   default:
477     return false;
478   }
479 }
480 
481 inline bool isEndMarker(unsigned Opc) {
482   switch (Opc) {
483   case WebAssembly::END_BLOCK:
484   case WebAssembly::END_BLOCK_S:
485   case WebAssembly::END_LOOP:
486   case WebAssembly::END_LOOP_S:
487   case WebAssembly::END_TRY:
488   case WebAssembly::END_TRY_S:
489   case WebAssembly::END_TRY_TABLE:
490   case WebAssembly::END_TRY_TABLE_S:
491     return true;
492   default:
493     return false;
494   }
495 }
496 
497 inline bool isTry(unsigned Opc) {
498   switch (Opc) {
499   case WebAssembly::TRY:
500   case WebAssembly::TRY_S:
501   case WebAssembly::TRY_TABLE:
502   case WebAssembly::TRY_TABLE_S:
503     return true;
504   default:
505     return false;
506   }
507 }
508 
509 inline bool isCatch(unsigned Opc) {
510   switch (Opc) {
511   case WebAssembly::CATCH_LEGACY:
512   case WebAssembly::CATCH_LEGACY_S:
513   case WebAssembly::CATCH_ALL_LEGACY:
514   case WebAssembly::CATCH_ALL_LEGACY_S:
515   case WebAssembly::CATCH:
516   case WebAssembly::CATCH_S:
517   case WebAssembly::CATCH_REF:
518   case WebAssembly::CATCH_REF_S:
519   case WebAssembly::CATCH_ALL:
520   case WebAssembly::CATCH_ALL_S:
521   case WebAssembly::CATCH_ALL_REF:
522   case WebAssembly::CATCH_ALL_REF_S:
523     return true;
524   default:
525     return false;
526   }
527 }
528 
529 inline bool isCatchAll(unsigned Opc) {
530   switch (Opc) {
531   case WebAssembly::CATCH_ALL_LEGACY:
532   case WebAssembly::CATCH_ALL_LEGACY_S:
533   case WebAssembly::CATCH_ALL:
534   case WebAssembly::CATCH_ALL_S:
535   case WebAssembly::CATCH_ALL_REF:
536   case WebAssembly::CATCH_ALL_REF_S:
537     return true;
538   default:
539     return false;
540   }
541 }
542 
543 inline bool isLocalGet(unsigned Opc) {
544   switch (Opc) {
545   case WebAssembly::LOCAL_GET_I32:
546   case WebAssembly::LOCAL_GET_I32_S:
547   case WebAssembly::LOCAL_GET_I64:
548   case WebAssembly::LOCAL_GET_I64_S:
549   case WebAssembly::LOCAL_GET_F32:
550   case WebAssembly::LOCAL_GET_F32_S:
551   case WebAssembly::LOCAL_GET_F64:
552   case WebAssembly::LOCAL_GET_F64_S:
553   case WebAssembly::LOCAL_GET_V128:
554   case WebAssembly::LOCAL_GET_V128_S:
555   case WebAssembly::LOCAL_GET_FUNCREF:
556   case WebAssembly::LOCAL_GET_FUNCREF_S:
557   case WebAssembly::LOCAL_GET_EXTERNREF:
558   case WebAssembly::LOCAL_GET_EXTERNREF_S:
559   case WebAssembly::LOCAL_GET_EXNREF:
560   case WebAssembly::LOCAL_GET_EXNREF_S:
561     return true;
562   default:
563     return false;
564   }
565 }
566 
567 inline bool isLocalSet(unsigned Opc) {
568   switch (Opc) {
569   case WebAssembly::LOCAL_SET_I32:
570   case WebAssembly::LOCAL_SET_I32_S:
571   case WebAssembly::LOCAL_SET_I64:
572   case WebAssembly::LOCAL_SET_I64_S:
573   case WebAssembly::LOCAL_SET_F32:
574   case WebAssembly::LOCAL_SET_F32_S:
575   case WebAssembly::LOCAL_SET_F64:
576   case WebAssembly::LOCAL_SET_F64_S:
577   case WebAssembly::LOCAL_SET_V128:
578   case WebAssembly::LOCAL_SET_V128_S:
579   case WebAssembly::LOCAL_SET_FUNCREF:
580   case WebAssembly::LOCAL_SET_FUNCREF_S:
581   case WebAssembly::LOCAL_SET_EXTERNREF:
582   case WebAssembly::LOCAL_SET_EXTERNREF_S:
583   case WebAssembly::LOCAL_SET_EXNREF:
584   case WebAssembly::LOCAL_SET_EXNREF_S:
585     return true;
586   default:
587     return false;
588   }
589 }
590 
591 inline bool isLocalTee(unsigned Opc) {
592   switch (Opc) {
593   case WebAssembly::LOCAL_TEE_I32:
594   case WebAssembly::LOCAL_TEE_I32_S:
595   case WebAssembly::LOCAL_TEE_I64:
596   case WebAssembly::LOCAL_TEE_I64_S:
597   case WebAssembly::LOCAL_TEE_F32:
598   case WebAssembly::LOCAL_TEE_F32_S:
599   case WebAssembly::LOCAL_TEE_F64:
600   case WebAssembly::LOCAL_TEE_F64_S:
601   case WebAssembly::LOCAL_TEE_V128:
602   case WebAssembly::LOCAL_TEE_V128_S:
603   case WebAssembly::LOCAL_TEE_FUNCREF:
604   case WebAssembly::LOCAL_TEE_FUNCREF_S:
605   case WebAssembly::LOCAL_TEE_EXTERNREF:
606   case WebAssembly::LOCAL_TEE_EXTERNREF_S:
607   case WebAssembly::LOCAL_TEE_EXNREF:
608   case WebAssembly::LOCAL_TEE_EXNREF_S:
609     return true;
610   default:
611     return false;
612   }
613 }
614 
615 static const unsigned UnusedReg = -1u;
616 
617 // For a given stackified WAReg, return the id number to print with push/pop.
618 unsigned inline getWARegStackId(unsigned Reg) {
619   assert(Reg & INT32_MIN);
620   return Reg & INT32_MAX;
621 }
622 
623 } // end namespace WebAssembly
624 } // end namespace llvm
625 
626 #define GET_SUBTARGETINFO_ENUM
627 #include "WebAssemblyGenSubtargetInfo.inc"
628 
629 #endif
630