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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/compiler/js-graph.h" | 5 #include "src/compiler/js-graph.h" |
| 6 #include "src/compiler/js-typed-lowering.h" | 6 #include "src/compiler/js-typed-lowering.h" |
| 7 #include "src/compiler/machine-operator.h" | 7 #include "src/compiler/machine-operator.h" |
| 8 #include "src/compiler/node-properties.h" | 8 #include "src/compiler/node-properties.h" |
| 9 #include "src/compiler/opcodes.h" | 9 #include "src/compiler/opcodes.h" |
| 10 #include "src/compiler/operator-properties.h" | 10 #include "src/compiler/operator-properties.h" |
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| 313 } | 313 } |
| 314 | 314 |
| 315 | 315 |
| 316 // A helper class for testing lowering of bitwise shift operators. | 316 // A helper class for testing lowering of bitwise shift operators. |
| 317 class JSBitwiseShiftTypedLoweringTester : public JSTypedLoweringTester { | 317 class JSBitwiseShiftTypedLoweringTester : public JSTypedLoweringTester { |
| 318 public: | 318 public: |
| 319 explicit JSBitwiseShiftTypedLoweringTester(LanguageMode language_mode) | 319 explicit JSBitwiseShiftTypedLoweringTester(LanguageMode language_mode) |
| 320 : JSTypedLoweringTester(), language_mode_(language_mode) { | 320 : JSTypedLoweringTester(), language_mode_(language_mode) { |
| 321 int i = 0; | 321 int i = 0; |
| 322 set(i++, javascript.ShiftLeft(language_mode_), true); | 322 set(i++, javascript.ShiftLeft(language_mode_), true); |
| 323 set(i++, machine.Word32Shl(), false); | 323 set(i++, simplified.NumberShiftLeft(), false); |
| 324 set(i++, javascript.ShiftRight(language_mode_), true); | 324 set(i++, javascript.ShiftRight(language_mode_), true); |
| 325 set(i++, machine.Word32Sar(), false); | 325 set(i++, simplified.NumberShiftRight(), false); |
| 326 set(i++, javascript.ShiftRightLogical(language_mode_), false); | 326 set(i++, javascript.ShiftRightLogical(language_mode_), false); |
| 327 set(i++, machine.Word32Shr(), false); | 327 set(i++, simplified.NumberShiftRightLogical(), false); |
| 328 } | 328 } |
| 329 static const int kNumberOps = 6; | 329 static const int kNumberOps = 6; |
| 330 const Operator* ops[kNumberOps]; | 330 const Operator* ops[kNumberOps]; |
| 331 bool signedness[kNumberOps]; | 331 bool signedness[kNumberOps]; |
| 332 | 332 |
| 333 private: | 333 private: |
| 334 LanguageMode language_mode_; | 334 LanguageMode language_mode_; |
| 335 void set(int idx, const Operator* op, bool s) { | 335 void set(int idx, const Operator* op, bool s) { |
| 336 ops[idx] = op; | 336 ops[idx] = op; |
| 337 signedness[idx] = s; | 337 signedness[idx] = s; |
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| 357 | 357 |
| 358 for (int k = 0; k < R.kNumberOps; k += 2) { | 358 for (int k = 0; k < R.kNumberOps; k += 2) { |
| 359 Node* add = R.Binop(R.ops[k], p0, p1); | 359 Node* add = R.Binop(R.ops[k], p0, p1); |
| 360 Node* r = R.reduce(add); | 360 Node* r = R.reduce(add); |
| 361 | 361 |
| 362 R.CheckPureBinop(R.ops[k + 1], r); | 362 R.CheckPureBinop(R.ops[k + 1], r); |
| 363 Node* r0 = r->InputAt(0); | 363 Node* r0 = r->InputAt(0); |
| 364 Node* r1 = r->InputAt(1); | 364 Node* r1 = r->InputAt(1); |
| 365 | 365 |
| 366 CheckToI32(p0, r0, R.signedness[k]); | 366 CheckToI32(p0, r0, R.signedness[k]); |
| 367 | 367 CheckToI32(p1, r1, false); |
| 368 if (r1->opcode() == IrOpcode::kWord32And) { | |
| 369 R.CheckPureBinop(IrOpcode::kWord32And, r1); | |
| 370 CheckToI32(p1, r1->InputAt(0), R.signedness[k + 1]); | |
| 371 R.CheckInt32Constant(0x1F, r1->InputAt(1)); | |
| 372 } else { | |
| 373 CheckToI32(p1, r1, R.signedness[k]); | |
| 374 } | |
| 375 } | 368 } |
| 376 } | 369 } |
| 377 } | 370 } |
| 378 } | 371 } |
| 379 | 372 |
| 380 | 373 |
| 381 // A helper class for testing lowering of bitwise operators. | 374 // A helper class for testing lowering of bitwise operators. |
| 382 class JSBitwiseTypedLoweringTester : public JSTypedLoweringTester { | 375 class JSBitwiseTypedLoweringTester : public JSTypedLoweringTester { |
| 383 public: | 376 public: |
| 384 explicit JSBitwiseTypedLoweringTester(LanguageMode language_mode) | 377 explicit JSBitwiseTypedLoweringTester(LanguageMode language_mode) |
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| 1258 CHECK_EQ(p1, r->InputAt(0)); | 1251 CHECK_EQ(p1, r->InputAt(0)); |
| 1259 CHECK_EQ(p0, r->InputAt(1)); | 1252 CHECK_EQ(p0, r->InputAt(1)); |
| 1260 } else { | 1253 } else { |
| 1261 CHECK_EQ(p0, r->InputAt(0)); | 1254 CHECK_EQ(p0, r->InputAt(0)); |
| 1262 CHECK_EQ(p1, r->InputAt(1)); | 1255 CHECK_EQ(p1, r->InputAt(1)); |
| 1263 } | 1256 } |
| 1264 } | 1257 } |
| 1265 } | 1258 } |
| 1266 } | 1259 } |
| 1267 } | 1260 } |
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