1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef V8_WASM_MACRO_GEN_H_
6 #define V8_WASM_MACRO_GEN_H_
7
8 #include "src/wasm/wasm-opcodes.h"
9
10 #include "src/zone/zone-containers.h"
11
12 #define U32_LE(v) \
13 static_cast<byte>(v), static_cast<byte>((v) >> 8), \
14 static_cast<byte>((v) >> 16), static_cast<byte>((v) >> 24)
15
16 #define U16_LE(v) static_cast<byte>(v), static_cast<byte>((v) >> 8)
17
18 #define WASM_MODULE_HEADER U32_LE(kWasmMagic), U32_LE(kWasmVersion)
19
20 #define IMPORT_SIG_INDEX(v) U32V_1(v)
21 #define FUNC_INDEX(v) U32V_1(v)
22 #define TABLE_INDEX(v) U32V_1(v)
23 #define NO_NAME U32V_1(0)
24 #define NAME_LENGTH(v) U32V_1(v)
25 #define ENTRY_COUNT(v) U32V_1(v)
26
27 #define ZERO_ALIGNMENT 0
28 #define ZERO_OFFSET 0
29
30 #define BR_TARGET(v) U32V_1(v)
31
32 #define MASK_7 ((1 << 7) - 1)
33 #define MASK_14 ((1 << 14) - 1)
34 #define MASK_21 ((1 << 21) - 1)
35 #define MASK_28 ((1 << 28) - 1)
36
37 #define U32V_1(x) static_cast<byte>((x)&MASK_7)
38 #define U32V_2(x) \
39 static_cast<byte>(((x)&MASK_7) | 0x80), static_cast<byte>(((x) >> 7) & MASK_7)
40 #define U32V_3(x) \
41 static_cast<byte>((((x)) & MASK_7) | 0x80), \
42 static_cast<byte>((((x) >> 7) & MASK_7) | 0x80), \
43 static_cast<byte>(((x) >> 14) & MASK_7)
44 #define U32V_4(x) \
45 static_cast<byte>(((x)&MASK_7) | 0x80), \
46 static_cast<byte>((((x) >> 7) & MASK_7) | 0x80), \
47 static_cast<byte>((((x) >> 14) & MASK_7) | 0x80), \
48 static_cast<byte>(((x) >> 21) & MASK_7)
49 #define U32V_5(x) \
50 static_cast<byte>(((x)&MASK_7) | 0x80), \
51 static_cast<byte>((((x) >> 7) & MASK_7) | 0x80), \
52 static_cast<byte>((((x) >> 14) & MASK_7) | 0x80), \
53 static_cast<byte>((((x) >> 21) & MASK_7) | 0x80), \
54 static_cast<byte>((((x) >> 28) & MASK_7))
55
56 // Convenience macros for building Wasm bytecode directly into a byte array.
57
58 //------------------------------------------------------------------------------
59 // Control.
60 //------------------------------------------------------------------------------
61 #define WASM_NOP kExprNop
62
63 #define ARITY_0 0
64 #define ARITY_1 1
65 #define ARITY_2 2
66 #define DEPTH_0 0
67 #define DEPTH_1 1
68 #define DEPTH_2 2
69 #define ARITY_2 2
70
71 #define WASM_BLOCK(...) kExprBlock, kLocalVoid, __VA_ARGS__, kExprEnd
72
73 #define WASM_BLOCK_T(t, ...) \
74 kExprBlock, static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(t)), \
75 __VA_ARGS__, kExprEnd
76
77 #define WASM_BLOCK_TT(t1, t2, ...) \
78 kExprBlock, kMultivalBlock, 0, \
79 static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(t1)), \
80 static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(t2)), __VA_ARGS__, \
81 kExprEnd
82
83 #define WASM_BLOCK_I(...) kExprBlock, kLocalI32, __VA_ARGS__, kExprEnd
84 #define WASM_BLOCK_L(...) kExprBlock, kLocalI64, __VA_ARGS__, kExprEnd
85 #define WASM_BLOCK_F(...) kExprBlock, kLocalF32, __VA_ARGS__, kExprEnd
86 #define WASM_BLOCK_D(...) kExprBlock, kLocalF64, __VA_ARGS__, kExprEnd
87
88 #define WASM_INFINITE_LOOP kExprLoop, kLocalVoid, kExprBr, DEPTH_0, kExprEnd
89
90 #define WASM_LOOP(...) kExprLoop, kLocalVoid, __VA_ARGS__, kExprEnd
91 #define WASM_LOOP_I(...) kExprLoop, kLocalI32, __VA_ARGS__, kExprEnd
92 #define WASM_LOOP_L(...) kExprLoop, kLocalI64, __VA_ARGS__, kExprEnd
93 #define WASM_LOOP_F(...) kExprLoop, kLocalF32, __VA_ARGS__, kExprEnd
94 #define WASM_LOOP_D(...) kExprLoop, kLocalF64, __VA_ARGS__, kExprEnd
95
96 #define WASM_IF(cond, tstmt) cond, kExprIf, kLocalVoid, tstmt, kExprEnd
97
98 #define WASM_IF_ELSE(cond, tstmt, fstmt) \
99 cond, kExprIf, kLocalVoid, tstmt, kExprElse, fstmt, kExprEnd
100
101 #define WASM_IF_ELSE_T(t, cond, tstmt, fstmt) \
102 cond, kExprIf, static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(t)), tstmt, \
103 kExprElse, fstmt, kExprEnd
104
105 #define WASM_IF_ELSE_TT(t1, t2, cond, tstmt, fstmt) \
106 cond, kExprIf, kMultivalBlock, 0, \
107 static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(t1)), \
108 static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(t2)), tstmt, kExprElse, \
109 fstmt, kExprEnd
110
111 #define WASM_IF_ELSE_I(cond, tstmt, fstmt) \
112 cond, kExprIf, kLocalI32, tstmt, kExprElse, fstmt, kExprEnd
113 #define WASM_IF_ELSE_L(cond, tstmt, fstmt) \
114 cond, kExprIf, kLocalI64, tstmt, kExprElse, fstmt, kExprEnd
115 #define WASM_IF_ELSE_F(cond, tstmt, fstmt) \
116 cond, kExprIf, kLocalF32, tstmt, kExprElse, fstmt, kExprEnd
117 #define WASM_IF_ELSE_D(cond, tstmt, fstmt) \
118 cond, kExprIf, kLocalF64, tstmt, kExprElse, fstmt, kExprEnd
119
120 #define WASM_SELECT(tval, fval, cond) tval, fval, cond, kExprSelect
121
122 #define WASM_RETURN0 kExprReturn
123 #define WASM_RETURN1(val) val, kExprReturn
124 #define WASM_RETURNN(count, ...) __VA_ARGS__, kExprReturn
125
126 #define WASM_BR(depth) kExprBr, static_cast<byte>(depth)
127 #define WASM_BR_IF(depth, cond) cond, kExprBrIf, static_cast<byte>(depth)
128 #define WASM_BR_IFD(depth, val, cond) \
129 val, cond, kExprBrIf, static_cast<byte>(depth), kExprDrop
130 #define WASM_CONTINUE(depth) kExprBr, static_cast<byte>(depth)
131 #define WASM_UNREACHABLE kExprUnreachable
132
133 #define WASM_BR_TABLE(key, count, ...) \
134 key, kExprBrTable, U32V_1(count), __VA_ARGS__
135
136 #define WASM_CASE(x) static_cast<byte>(x), static_cast<byte>(x >> 8)
137 #define WASM_CASE_BR(x) static_cast<byte>(x), static_cast<byte>(0x80 | (x) >> 8)
138
139 //------------------------------------------------------------------------------
140 // Misc expressions.
141 //------------------------------------------------------------------------------
142 #define WASM_ID(...) __VA_ARGS__
143 #define WASM_ZERO kExprI8Const, 0
144 #define WASM_ONE kExprI8Const, 1
145 #define WASM_I8(val) kExprI8Const, static_cast<byte>(val)
146
147 #define I32V_MIN(length) -(1 << (6 + (7 * ((length) - 1))))
148 #define I32V_MAX(length) ((1 << (6 + (7 * ((length) - 1)))) - 1)
149 #define I64V_MIN(length) -(1LL << (6 + (7 * ((length) - 1))))
150 #define I64V_MAX(length) ((1LL << (6 + 7 * ((length) - 1))) - 1)
151
152 #define I32V_IN_RANGE(value, length) \
153 ((value) >= I32V_MIN(length) && (value) <= I32V_MAX(length))
154 #define I64V_IN_RANGE(value, length) \
155 ((value) >= I64V_MIN(length) && (value) <= I64V_MAX(length))
156
157 #define WASM_NO_LOCALS 0
158
159 namespace v8 {
160 namespace internal {
161 namespace wasm {
162
CheckI32v(int32_t value,int length)163 inline void CheckI32v(int32_t value, int length) {
164 DCHECK(length >= 1 && length <= 5);
165 DCHECK(length == 5 || I32V_IN_RANGE(value, length));
166 }
167
CheckI64v(int64_t value,int length)168 inline void CheckI64v(int64_t value, int length) {
169 DCHECK(length >= 1 && length <= 10);
170 DCHECK(length == 10 || I64V_IN_RANGE(value, length));
171 }
172
173 // A helper for encoding local declarations prepended to the body of a
174 // function.
175 // TODO(titzer): move this to an appropriate header.
176 class LocalDeclEncoder {
177 public:
178 explicit LocalDeclEncoder(Zone* zone, FunctionSig* s = nullptr)
sig(s)179 : sig(s), local_decls(zone), total(0) {}
180
181 // Prepend local declarations by creating a new buffer and copying data
182 // over. The new buffer must be delete[]'d by the caller.
Prepend(Zone * zone,const byte ** start,const byte ** end)183 void Prepend(Zone* zone, const byte** start, const byte** end) const {
184 size_t size = (*end - *start);
185 byte* buffer = reinterpret_cast<byte*>(zone->New(Size() + size));
186 size_t pos = Emit(buffer);
187 memcpy(buffer + pos, *start, size);
188 pos += size;
189 *start = buffer;
190 *end = buffer + pos;
191 }
192
Emit(byte * buffer)193 size_t Emit(byte* buffer) const {
194 size_t pos = 0;
195 pos = WriteUint32v(buffer, pos, static_cast<uint32_t>(local_decls.size()));
196 for (size_t i = 0; i < local_decls.size(); ++i) {
197 pos = WriteUint32v(buffer, pos, local_decls[i].first);
198 buffer[pos++] = WasmOpcodes::LocalTypeCodeFor(local_decls[i].second);
199 }
200 DCHECK_EQ(Size(), pos);
201 return pos;
202 }
203
204 // Add locals declarations to this helper. Return the index of the newly added
205 // local(s), with an optional adjustment for the parameters.
AddLocals(uint32_t count,LocalType type)206 uint32_t AddLocals(uint32_t count, LocalType type) {
207 uint32_t result =
208 static_cast<uint32_t>(total + (sig ? sig->parameter_count() : 0));
209 total += count;
210 if (local_decls.size() > 0 && local_decls.back().second == type) {
211 count += local_decls.back().first;
212 local_decls.pop_back();
213 }
214 local_decls.push_back(std::pair<uint32_t, LocalType>(count, type));
215 return result;
216 }
217
Size()218 size_t Size() const {
219 size_t size = SizeofUint32v(static_cast<uint32_t>(local_decls.size()));
220 for (auto p : local_decls) size += 1 + SizeofUint32v(p.first);
221 return size;
222 }
223
has_sig()224 bool has_sig() const { return sig != nullptr; }
get_sig()225 FunctionSig* get_sig() const { return sig; }
set_sig(FunctionSig * s)226 void set_sig(FunctionSig* s) { sig = s; }
227
228 private:
229 FunctionSig* sig;
230 ZoneVector<std::pair<uint32_t, LocalType>> local_decls;
231 size_t total;
232
SizeofUint32v(uint32_t val)233 size_t SizeofUint32v(uint32_t val) const {
234 size_t size = 1;
235 while (true) {
236 byte b = val & MASK_7;
237 if (b == val) return size;
238 size++;
239 val = val >> 7;
240 }
241 }
242
243 // TODO(titzer): lift encoding of u32v to a common place.
WriteUint32v(byte * buffer,size_t pos,uint32_t val)244 size_t WriteUint32v(byte* buffer, size_t pos, uint32_t val) const {
245 while (true) {
246 byte b = val & MASK_7;
247 if (b == val) {
248 buffer[pos++] = b;
249 break;
250 }
251 buffer[pos++] = 0x80 | b;
252 val = val >> 7;
253 }
254 return pos;
255 }
256 };
257 } // namespace wasm
258 } // namespace internal
259 } // namespace v8
260
261 //------------------------------------------------------------------------------
262 // Int32 Const operations
263 //------------------------------------------------------------------------------
264 #define WASM_I32V(val) kExprI32Const, U32V_5(val)
265
266 #define WASM_I32V_1(val) \
267 static_cast<byte>(CheckI32v((val), 1), kExprI32Const), U32V_1(val)
268 #define WASM_I32V_2(val) \
269 static_cast<byte>(CheckI32v((val), 2), kExprI32Const), U32V_2(val)
270 #define WASM_I32V_3(val) \
271 static_cast<byte>(CheckI32v((val), 3), kExprI32Const), U32V_3(val)
272 #define WASM_I32V_4(val) \
273 static_cast<byte>(CheckI32v((val), 4), kExprI32Const), U32V_4(val)
274 #define WASM_I32V_5(val) \
275 static_cast<byte>(CheckI32v((val), 5), kExprI32Const), U32V_5(val)
276
277 //------------------------------------------------------------------------------
278 // Int64 Const operations
279 //------------------------------------------------------------------------------
280 #define WASM_I64V(val) \
281 kExprI64Const, \
282 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
283 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
284 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
285 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
286 static_cast<byte>(((static_cast<int64_t>(val) >> 28) & MASK_7) | 0x80), \
287 static_cast<byte>(((static_cast<int64_t>(val) >> 35) & MASK_7) | 0x80), \
288 static_cast<byte>(((static_cast<int64_t>(val) >> 42) & MASK_7) | 0x80), \
289 static_cast<byte>(((static_cast<int64_t>(val) >> 49) & MASK_7) | 0x80), \
290 static_cast<byte>(((static_cast<int64_t>(val) >> 56) & MASK_7) | 0x80), \
291 static_cast<byte>((static_cast<int64_t>(val) >> 63) & MASK_7)
292
293 #define WASM_I64V_1(val) \
294 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 1), kExprI64Const), \
295 static_cast<byte>(static_cast<int64_t>(val) & MASK_7)
296 #define WASM_I64V_2(val) \
297 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 2), kExprI64Const), \
298 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
299 static_cast<byte>((static_cast<int64_t>(val) >> 7) & MASK_7)
300 #define WASM_I64V_3(val) \
301 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 3), kExprI64Const), \
302 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
303 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
304 static_cast<byte>((static_cast<int64_t>(val) >> 14) & MASK_7)
305 #define WASM_I64V_4(val) \
306 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 4), kExprI64Const), \
307 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
308 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
309 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
310 static_cast<byte>((static_cast<int64_t>(val) >> 21) & MASK_7)
311 #define WASM_I64V_5(val) \
312 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 5), kExprI64Const), \
313 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
314 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
315 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
316 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
317 static_cast<byte>((static_cast<int64_t>(val) >> 28) & MASK_7)
318 #define WASM_I64V_6(val) \
319 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 6), kExprI64Const), \
320 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
321 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
322 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
323 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
324 static_cast<byte>(((static_cast<int64_t>(val) >> 28) & MASK_7) | 0x80), \
325 static_cast<byte>((static_cast<int64_t>(val) >> 35) & MASK_7)
326 #define WASM_I64V_7(val) \
327 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 7), kExprI64Const), \
328 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
329 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
330 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
331 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
332 static_cast<byte>(((static_cast<int64_t>(val) >> 28) & MASK_7) | 0x80), \
333 static_cast<byte>(((static_cast<int64_t>(val) >> 35) & MASK_7) | 0x80), \
334 static_cast<byte>((static_cast<int64_t>(val) >> 42) & MASK_7)
335 #define WASM_I64V_8(val) \
336 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 8), kExprI64Const), \
337 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
338 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
339 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
340 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
341 static_cast<byte>(((static_cast<int64_t>(val) >> 28) & MASK_7) | 0x80), \
342 static_cast<byte>(((static_cast<int64_t>(val) >> 35) & MASK_7) | 0x80), \
343 static_cast<byte>(((static_cast<int64_t>(val) >> 42) & MASK_7) | 0x80), \
344 static_cast<byte>((static_cast<int64_t>(val) >> 49) & MASK_7)
345 #define WASM_I64V_9(val) \
346 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 9), kExprI64Const), \
347 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
348 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
349 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
350 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
351 static_cast<byte>(((static_cast<int64_t>(val) >> 28) & MASK_7) | 0x80), \
352 static_cast<byte>(((static_cast<int64_t>(val) >> 35) & MASK_7) | 0x80), \
353 static_cast<byte>(((static_cast<int64_t>(val) >> 42) & MASK_7) | 0x80), \
354 static_cast<byte>(((static_cast<int64_t>(val) >> 49) & MASK_7) | 0x80), \
355 static_cast<byte>((static_cast<int64_t>(val) >> 56) & MASK_7)
356 #define WASM_I64V_10(val) \
357 static_cast<byte>(CheckI64v(static_cast<int64_t>(val), 10), kExprI64Const), \
358 static_cast<byte>((static_cast<int64_t>(val) & MASK_7) | 0x80), \
359 static_cast<byte>(((static_cast<int64_t>(val) >> 7) & MASK_7) | 0x80), \
360 static_cast<byte>(((static_cast<int64_t>(val) >> 14) & MASK_7) | 0x80), \
361 static_cast<byte>(((static_cast<int64_t>(val) >> 21) & MASK_7) | 0x80), \
362 static_cast<byte>(((static_cast<int64_t>(val) >> 28) & MASK_7) | 0x80), \
363 static_cast<byte>(((static_cast<int64_t>(val) >> 35) & MASK_7) | 0x80), \
364 static_cast<byte>(((static_cast<int64_t>(val) >> 42) & MASK_7) | 0x80), \
365 static_cast<byte>(((static_cast<int64_t>(val) >> 49) & MASK_7) | 0x80), \
366 static_cast<byte>(((static_cast<int64_t>(val) >> 56) & MASK_7) | 0x80), \
367 static_cast<byte>((static_cast<int64_t>(val) >> 63) & MASK_7)
368
369 #define WASM_F32(val) \
370 kExprF32Const, \
371 static_cast<byte>(bit_cast<int32_t>(static_cast<float>(val))), \
372 static_cast<byte>(bit_cast<uint32_t>(static_cast<float>(val)) >> 8), \
373 static_cast<byte>(bit_cast<uint32_t>(static_cast<float>(val)) >> 16), \
374 static_cast<byte>(bit_cast<uint32_t>(static_cast<float>(val)) >> 24)
375 #define WASM_F64(val) \
376 kExprF64Const, static_cast<byte>(bit_cast<uint64_t>(val)), \
377 static_cast<byte>(bit_cast<uint64_t>(val) >> 8), \
378 static_cast<byte>(bit_cast<uint64_t>(val) >> 16), \
379 static_cast<byte>(bit_cast<uint64_t>(val) >> 24), \
380 static_cast<byte>(bit_cast<uint64_t>(val) >> 32), \
381 static_cast<byte>(bit_cast<uint64_t>(val) >> 40), \
382 static_cast<byte>(bit_cast<uint64_t>(val) >> 48), \
383 static_cast<byte>(bit_cast<uint64_t>(val) >> 56)
384 #define WASM_GET_LOCAL(index) kExprGetLocal, static_cast<byte>(index)
385 #define WASM_SET_LOCAL(index, val) val, kExprSetLocal, static_cast<byte>(index)
386 #define WASM_TEE_LOCAL(index, val) val, kExprTeeLocal, static_cast<byte>(index)
387 #define WASM_DROP kExprDrop
388 #define WASM_GET_GLOBAL(index) kExprGetGlobal, static_cast<byte>(index)
389 #define WASM_SET_GLOBAL(index, val) \
390 val, kExprSetGlobal, static_cast<byte>(index)
391 #define WASM_LOAD_MEM(type, index) \
392 index, static_cast<byte>( \
393 v8::internal::wasm::WasmOpcodes::LoadStoreOpcodeOf(type, false)), \
394 ZERO_ALIGNMENT, ZERO_OFFSET
395 #define WASM_STORE_MEM(type, index, val) \
396 index, val, \
397 static_cast<byte>( \
398 v8::internal::wasm::WasmOpcodes::LoadStoreOpcodeOf(type, true)), \
399 ZERO_ALIGNMENT, ZERO_OFFSET
400 #define WASM_LOAD_MEM_OFFSET(type, offset, index) \
401 index, static_cast<byte>( \
402 v8::internal::wasm::WasmOpcodes::LoadStoreOpcodeOf(type, false)), \
403 ZERO_ALIGNMENT, static_cast<byte>(offset)
404 #define WASM_STORE_MEM_OFFSET(type, offset, index, val) \
405 index, val, \
406 static_cast<byte>( \
407 v8::internal::wasm::WasmOpcodes::LoadStoreOpcodeOf(type, true)), \
408 ZERO_ALIGNMENT, static_cast<byte>(offset)
409 #define WASM_LOAD_MEM_ALIGNMENT(type, index, alignment) \
410 index, static_cast<byte>( \
411 v8::internal::wasm::WasmOpcodes::LoadStoreOpcodeOf(type, false)), \
412 alignment, ZERO_OFFSET
413 #define WASM_STORE_MEM_ALIGNMENT(type, index, alignment, val) \
414 index, val, \
415 static_cast<byte>( \
416 v8::internal::wasm::WasmOpcodes::LoadStoreOpcodeOf(type, true)), \
417 alignment, ZERO_OFFSET
418
419 #define WASM_CALL_FUNCTION0(index) kExprCallFunction, static_cast<byte>(index)
420 #define WASM_CALL_FUNCTION(index, ...) \
421 __VA_ARGS__, kExprCallFunction, static_cast<byte>(index)
422
423 #define TABLE_ZERO 0
424
425 // TODO(titzer): change usages of these macros to put func last.
426 #define WASM_CALL_INDIRECT0(index, func) \
427 func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
428 #define WASM_CALL_INDIRECT1(index, func, a) \
429 a, func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
430 #define WASM_CALL_INDIRECT2(index, func, a, b) \
431 a, b, func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
432 #define WASM_CALL_INDIRECT3(index, func, a, b, c) \
433 a, b, c, func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
434 #define WASM_CALL_INDIRECT4(index, func, a, b, c, d) \
435 a, b, c, d, func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
436 #define WASM_CALL_INDIRECT5(index, func, a, b, c, d, e) \
437 a, b, c, d, e, func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
438 #define WASM_CALL_INDIRECTN(arity, index, func, ...) \
439 __VA_ARGS__, func, kExprCallIndirect, static_cast<byte>(index), TABLE_ZERO
440
441 #define WASM_NOT(x) x, kExprI32Eqz
442 #define WASM_SEQ(...) __VA_ARGS__
443
444 //------------------------------------------------------------------------------
445 // Constructs that are composed of multiple bytecodes.
446 //------------------------------------------------------------------------------
447 #define WASM_WHILE(x, y) \
448 kExprLoop, kLocalVoid, x, kExprIf, kLocalVoid, y, kExprBr, DEPTH_1, \
449 kExprEnd, kExprEnd
450 #define WASM_INC_LOCAL(index) \
451 kExprGetLocal, static_cast<byte>(index), kExprI8Const, 1, kExprI32Add, \
452 kExprTeeLocal, static_cast<byte>(index)
453 #define WASM_INC_LOCAL_BYV(index, count) \
454 kExprGetLocal, static_cast<byte>(index), kExprI8Const, \
455 static_cast<byte>(count), kExprI32Add, kExprTeeLocal, \
456 static_cast<byte>(index)
457 #define WASM_INC_LOCAL_BY(index, count) \
458 kExprGetLocal, static_cast<byte>(index), kExprI8Const, \
459 static_cast<byte>(count), kExprI32Add, kExprSetLocal, \
460 static_cast<byte>(index)
461 #define WASM_UNOP(opcode, x) x, static_cast<byte>(opcode)
462 #define WASM_BINOP(opcode, x, y) x, y, static_cast<byte>(opcode)
463
464 //------------------------------------------------------------------------------
465 // Int32 operations
466 //------------------------------------------------------------------------------
467 #define WASM_I32_ADD(x, y) x, y, kExprI32Add
468 #define WASM_I32_SUB(x, y) x, y, kExprI32Sub
469 #define WASM_I32_MUL(x, y) x, y, kExprI32Mul
470 #define WASM_I32_DIVS(x, y) x, y, kExprI32DivS
471 #define WASM_I32_DIVU(x, y) x, y, kExprI32DivU
472 #define WASM_I32_REMS(x, y) x, y, kExprI32RemS
473 #define WASM_I32_REMU(x, y) x, y, kExprI32RemU
474 #define WASM_I32_AND(x, y) x, y, kExprI32And
475 #define WASM_I32_IOR(x, y) x, y, kExprI32Ior
476 #define WASM_I32_XOR(x, y) x, y, kExprI32Xor
477 #define WASM_I32_SHL(x, y) x, y, kExprI32Shl
478 #define WASM_I32_SHR(x, y) x, y, kExprI32ShrU
479 #define WASM_I32_SAR(x, y) x, y, kExprI32ShrS
480 #define WASM_I32_ROR(x, y) x, y, kExprI32Ror
481 #define WASM_I32_ROL(x, y) x, y, kExprI32Rol
482 #define WASM_I32_EQ(x, y) x, y, kExprI32Eq
483 #define WASM_I32_NE(x, y) x, y, kExprI32Ne
484 #define WASM_I32_LTS(x, y) x, y, kExprI32LtS
485 #define WASM_I32_LES(x, y) x, y, kExprI32LeS
486 #define WASM_I32_LTU(x, y) x, y, kExprI32LtU
487 #define WASM_I32_LEU(x, y) x, y, kExprI32LeU
488 #define WASM_I32_GTS(x, y) x, y, kExprI32GtS
489 #define WASM_I32_GES(x, y) x, y, kExprI32GeS
490 #define WASM_I32_GTU(x, y) x, y, kExprI32GtU
491 #define WASM_I32_GEU(x, y) x, y, kExprI32GeU
492 #define WASM_I32_CLZ(x) x, kExprI32Clz
493 #define WASM_I32_CTZ(x) x, kExprI32Ctz
494 #define WASM_I32_POPCNT(x) x, kExprI32Popcnt
495 #define WASM_I32_EQZ(x) x, kExprI32Eqz
496
497 //------------------------------------------------------------------------------
498 // Asmjs Int32 operations
499 //------------------------------------------------------------------------------
500 #define WASM_I32_ASMJS_DIVS(x, y) x, y, kExprI32AsmjsDivS
501 #define WASM_I32_ASMJS_REMS(x, y) x, y, kExprI32AsmjsRemS
502 #define WASM_I32_ASMJS_DIVU(x, y) x, y, kExprI32AsmjsDivU
503 #define WASM_I32_ASMJS_REMU(x, y) x, y, kExprI32AsmjsRemU
504
505 //------------------------------------------------------------------------------
506 // Int64 operations
507 //------------------------------------------------------------------------------
508 #define WASM_I64_ADD(x, y) x, y, kExprI64Add
509 #define WASM_I64_SUB(x, y) x, y, kExprI64Sub
510 #define WASM_I64_MUL(x, y) x, y, kExprI64Mul
511 #define WASM_I64_DIVS(x, y) x, y, kExprI64DivS
512 #define WASM_I64_DIVU(x, y) x, y, kExprI64DivU
513 #define WASM_I64_REMS(x, y) x, y, kExprI64RemS
514 #define WASM_I64_REMU(x, y) x, y, kExprI64RemU
515 #define WASM_I64_AND(x, y) x, y, kExprI64And
516 #define WASM_I64_IOR(x, y) x, y, kExprI64Ior
517 #define WASM_I64_XOR(x, y) x, y, kExprI64Xor
518 #define WASM_I64_SHL(x, y) x, y, kExprI64Shl
519 #define WASM_I64_SHR(x, y) x, y, kExprI64ShrU
520 #define WASM_I64_SAR(x, y) x, y, kExprI64ShrS
521 #define WASM_I64_ROR(x, y) x, y, kExprI64Ror
522 #define WASM_I64_ROL(x, y) x, y, kExprI64Rol
523 #define WASM_I64_EQ(x, y) x, y, kExprI64Eq
524 #define WASM_I64_NE(x, y) x, y, kExprI64Ne
525 #define WASM_I64_LTS(x, y) x, y, kExprI64LtS
526 #define WASM_I64_LES(x, y) x, y, kExprI64LeS
527 #define WASM_I64_LTU(x, y) x, y, kExprI64LtU
528 #define WASM_I64_LEU(x, y) x, y, kExprI64LeU
529 #define WASM_I64_GTS(x, y) x, y, kExprI64GtS
530 #define WASM_I64_GES(x, y) x, y, kExprI64GeS
531 #define WASM_I64_GTU(x, y) x, y, kExprI64GtU
532 #define WASM_I64_GEU(x, y) x, y, kExprI64GeU
533 #define WASM_I64_CLZ(x) x, kExprI64Clz
534 #define WASM_I64_CTZ(x) x, kExprI64Ctz
535 #define WASM_I64_POPCNT(x) x, kExprI64Popcnt
536 #define WASM_I64_EQZ(x) x, kExprI64Eqz
537
538 //------------------------------------------------------------------------------
539 // Float32 operations
540 //------------------------------------------------------------------------------
541 #define WASM_F32_ADD(x, y) x, y, kExprF32Add
542 #define WASM_F32_SUB(x, y) x, y, kExprF32Sub
543 #define WASM_F32_MUL(x, y) x, y, kExprF32Mul
544 #define WASM_F32_DIV(x, y) x, y, kExprF32Div
545 #define WASM_F32_MIN(x, y) x, y, kExprF32Min
546 #define WASM_F32_MAX(x, y) x, y, kExprF32Max
547 #define WASM_F32_ABS(x) x, kExprF32Abs
548 #define WASM_F32_NEG(x) x, kExprF32Neg
549 #define WASM_F32_COPYSIGN(x, y) x, y, kExprF32CopySign
550 #define WASM_F32_CEIL(x) x, kExprF32Ceil
551 #define WASM_F32_FLOOR(x) x, kExprF32Floor
552 #define WASM_F32_TRUNC(x) x, kExprF32Trunc
553 #define WASM_F32_NEARESTINT(x) x, kExprF32NearestInt
554 #define WASM_F32_SQRT(x) x, kExprF32Sqrt
555 #define WASM_F32_EQ(x, y) x, y, kExprF32Eq
556 #define WASM_F32_NE(x, y) x, y, kExprF32Ne
557 #define WASM_F32_LT(x, y) x, y, kExprF32Lt
558 #define WASM_F32_LE(x, y) x, y, kExprF32Le
559 #define WASM_F32_GT(x, y) x, y, kExprF32Gt
560 #define WASM_F32_GE(x, y) x, y, kExprF32Ge
561
562 //------------------------------------------------------------------------------
563 // Float64 operations
564 //------------------------------------------------------------------------------
565 #define WASM_F64_ADD(x, y) x, y, kExprF64Add
566 #define WASM_F64_SUB(x, y) x, y, kExprF64Sub
567 #define WASM_F64_MUL(x, y) x, y, kExprF64Mul
568 #define WASM_F64_DIV(x, y) x, y, kExprF64Div
569 #define WASM_F64_MIN(x, y) x, y, kExprF64Min
570 #define WASM_F64_MAX(x, y) x, y, kExprF64Max
571 #define WASM_F64_ABS(x) x, kExprF64Abs
572 #define WASM_F64_NEG(x) x, kExprF64Neg
573 #define WASM_F64_COPYSIGN(x, y) x, y, kExprF64CopySign
574 #define WASM_F64_CEIL(x) x, kExprF64Ceil
575 #define WASM_F64_FLOOR(x) x, kExprF64Floor
576 #define WASM_F64_TRUNC(x) x, kExprF64Trunc
577 #define WASM_F64_NEARESTINT(x) x, kExprF64NearestInt
578 #define WASM_F64_SQRT(x) x, kExprF64Sqrt
579 #define WASM_F64_EQ(x, y) x, y, kExprF64Eq
580 #define WASM_F64_NE(x, y) x, y, kExprF64Ne
581 #define WASM_F64_LT(x, y) x, y, kExprF64Lt
582 #define WASM_F64_LE(x, y) x, y, kExprF64Le
583 #define WASM_F64_GT(x, y) x, y, kExprF64Gt
584 #define WASM_F64_GE(x, y) x, y, kExprF64Ge
585
586 //------------------------------------------------------------------------------
587 // Type conversions.
588 //------------------------------------------------------------------------------
589 #define WASM_I32_SCONVERT_F32(x) x, kExprI32SConvertF32
590 #define WASM_I32_SCONVERT_F64(x) x, kExprI32SConvertF64
591 #define WASM_I32_UCONVERT_F32(x) x, kExprI32UConvertF32
592 #define WASM_I32_UCONVERT_F64(x) x, kExprI32UConvertF64
593 #define WASM_I32_CONVERT_I64(x) x, kExprI32ConvertI64
594 #define WASM_I64_SCONVERT_F32(x) x, kExprI64SConvertF32
595 #define WASM_I64_SCONVERT_F64(x) x, kExprI64SConvertF64
596 #define WASM_I64_UCONVERT_F32(x) x, kExprI64UConvertF32
597 #define WASM_I64_UCONVERT_F64(x) x, kExprI64UConvertF64
598 #define WASM_I64_SCONVERT_I32(x) x, kExprI64SConvertI32
599 #define WASM_I64_UCONVERT_I32(x) x, kExprI64UConvertI32
600 #define WASM_F32_SCONVERT_I32(x) x, kExprF32SConvertI32
601 #define WASM_F32_UCONVERT_I32(x) x, kExprF32UConvertI32
602 #define WASM_F32_SCONVERT_I64(x) x, kExprF32SConvertI64
603 #define WASM_F32_UCONVERT_I64(x) x, kExprF32UConvertI64
604 #define WASM_F32_CONVERT_F64(x) x, kExprF32ConvertF64
605 #define WASM_F32_REINTERPRET_I32(x) x, kExprF32ReinterpretI32
606 #define WASM_F64_SCONVERT_I32(x) x, kExprF64SConvertI32
607 #define WASM_F64_UCONVERT_I32(x) x, kExprF64UConvertI32
608 #define WASM_F64_SCONVERT_I64(x) x, kExprF64SConvertI64
609 #define WASM_F64_UCONVERT_I64(x) x, kExprF64UConvertI64
610 #define WASM_F64_CONVERT_F32(x) x, kExprF64ConvertF32
611 #define WASM_F64_REINTERPRET_I64(x) x, kExprF64ReinterpretI64
612 #define WASM_I32_REINTERPRET_F32(x) x, kExprI32ReinterpretF32
613 #define WASM_I64_REINTERPRET_F64(x) x, kExprI64ReinterpretF64
614
615 //------------------------------------------------------------------------------
616 // Memory Operations.
617 //------------------------------------------------------------------------------
618 #define WASM_GROW_MEMORY(x) x, kExprGrowMemory, 0
619 #define WASM_MEMORY_SIZE kExprMemorySize, 0
620
621 //------------------------------------------------------------------------------
622 // Simd Operations.
623 //------------------------------------------------------------------------------
624 #define WASM_SIMD_I32x4_SPLAT(x) x, kSimdPrefix, kExprI32x4Splat & 0xff
625 #define WASM_SIMD_I32x4_EXTRACT_LANE(lane, x) \
626 x, kSimdPrefix, kExprI32x4ExtractLane & 0xff, static_cast<byte>(lane)
627 #define WASM_SIMD_I32x4_ADD(x, y) x, y, kSimdPrefix, kExprI32x4Add & 0xff
628 #define WASM_SIMD_F32x4_SPLAT(x) x, kSimdPrefix, kExprF32x4Splat & 0xff
629 #define WASM_SIMD_F32x4_EXTRACT_LANE(lane, x) \
630 x, kSimdPrefix, kExprF32x4ExtractLane & 0xff, static_cast<byte>(lane)
631 #define WASM_SIMD_F32x4_ADD(x, y) x, y, kSimdPrefix, kExprF32x4Add & 0xff
632
633 #define SIG_ENTRY_v_v kWasmFunctionTypeForm, 0, 0
634 #define SIZEOF_SIG_ENTRY_v_v 3
635
636 #define SIG_ENTRY_v_x(a) kWasmFunctionTypeForm, 1, a, 0
637 #define SIG_ENTRY_v_xx(a, b) kWasmFunctionTypeForm, 2, a, b, 0
638 #define SIG_ENTRY_v_xxx(a, b, c) kWasmFunctionTypeForm, 3, a, b, c, 0
639 #define SIZEOF_SIG_ENTRY_v_x 4
640 #define SIZEOF_SIG_ENTRY_v_xx 5
641 #define SIZEOF_SIG_ENTRY_v_xxx 6
642
643 #define SIG_ENTRY_x(r) kWasmFunctionTypeForm, 0, 1, r
644 #define SIG_ENTRY_x_x(r, a) kWasmFunctionTypeForm, 1, a, 1, r
645 #define SIG_ENTRY_x_xx(r, a, b) kWasmFunctionTypeForm, 2, a, b, 1, r
646 #define SIG_ENTRY_x_xxx(r, a, b, c) kWasmFunctionTypeForm, 3, a, b, c, 1, r
647 #define SIZEOF_SIG_ENTRY_x 4
648 #define SIZEOF_SIG_ENTRY_x_x 5
649 #define SIZEOF_SIG_ENTRY_x_xx 6
650 #define SIZEOF_SIG_ENTRY_x_xxx 7
651
652 #define WASM_BRV(depth, val) val, kExprBr, static_cast<byte>(depth)
653 #define WASM_BRV_IF(depth, val, cond) \
654 val, cond, kExprBrIf, static_cast<byte>(depth)
655 #define WASM_BRV_IFD(depth, val, cond) \
656 val, cond, kExprBrIf, static_cast<byte>(depth), kExprDrop
657 #define WASM_IFB(cond, ...) cond, kExprIf, kLocalVoid, __VA_ARGS__, kExprEnd
658 #define WASM_BR_TABLEV(val, key, count, ...) \
659 val, key, kExprBrTable, U32V_1(count), __VA_ARGS__
660
661 #endif // V8_WASM_MACRO_GEN_H_
662