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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32. |
6 #if defined(TARGET_ARCH_IA32) | 6 #if defined(TARGET_ARCH_IA32) |
7 | 7 |
8 #include "vm/intermediate_language.h" | 8 #include "vm/intermediate_language.h" |
9 | 9 |
10 #include "lib/error.h" | 10 #include "lib/error.h" |
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1428 | 1428 |
1429 __ cmpl(ESP, | 1429 __ cmpl(ESP, |
1430 Address::Absolute(Isolate::Current()->stack_limit_address())); | 1430 Address::Absolute(Isolate::Current()->stack_limit_address())); |
1431 __ j(BELOW_EQUAL, slow_path->entry_label()); | 1431 __ j(BELOW_EQUAL, slow_path->entry_label()); |
1432 __ Bind(slow_path->exit_label()); | 1432 __ Bind(slow_path->exit_label()); |
1433 } | 1433 } |
1434 | 1434 |
1435 | 1435 |
1436 LocationSummary* BinarySmiOpComp::MakeLocationSummary() const { | 1436 LocationSummary* BinarySmiOpComp::MakeLocationSummary() const { |
1437 const intptr_t kNumInputs = 2; | 1437 const intptr_t kNumInputs = 2; |
1438 | |
1439 ConstantComp* right_constant = right()->definition()->AsConstant(); | |
1440 if ((right_constant != NULL) && | |
1441 (op_kind() != Token::kTRUNCDIV) && | |
1442 (op_kind() != Token::kSHL)) { | |
1443 const intptr_t kNumTemps = 0; | |
1444 LocationSummary* summary = | |
1445 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | |
1446 summary->set_in(0, Location::RequiresRegister()); | |
1447 summary->set_in(1, Location::Constant(right_constant->value())); | |
1448 summary->set_out(Location::SameAsFirstInput()); | |
1449 return summary; | |
1450 } | |
1451 | |
1452 if (op_kind() == Token::kTRUNCDIV) { | 1438 if (op_kind() == Token::kTRUNCDIV) { |
1453 const intptr_t kNumTemps = 3; | 1439 const intptr_t kNumTemps = 3; |
1454 LocationSummary* summary = | 1440 LocationSummary* summary = |
1455 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | 1441 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); |
1456 summary->set_in(0, Location::RegisterLocation(EAX)); | 1442 summary->set_in(0, Location::RegisterLocation(EAX)); |
1457 summary->set_in(1, Location::RegisterLocation(ECX)); | 1443 summary->set_in(1, Location::RegisterLocation(ECX)); |
1458 summary->set_out(Location::SameAsFirstInput()); | 1444 summary->set_out(Location::SameAsFirstInput()); |
1459 summary->set_temp(0, Location::RegisterLocation(EBX)); | 1445 summary->set_temp(0, Location::RegisterLocation(EBX)); |
1460 // Will be used for for sign extension. | 1446 // Will be used for for sign extension. |
1461 summary->set_temp(1, Location::RegisterLocation(EDX)); | 1447 summary->set_temp(1, Location::RegisterLocation(EDX)); |
1462 summary->set_temp(2, Location::RequiresRegister()); | 1448 summary->set_temp(2, Location::RequiresRegister()); |
1463 return summary; | 1449 return summary; |
1464 } else if (op_kind() == Token::kSHR) { | 1450 } else if (op_kind() == Token::kSHR) { |
1465 const intptr_t kNumTemps = 0; | 1451 const intptr_t kNumTemps = 0; |
1466 LocationSummary* summary = | 1452 LocationSummary* summary = |
1467 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | 1453 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); |
1468 summary->set_in(0, Location::RequiresRegister()); | 1454 summary->set_in(0, Location::RequiresRegister()); |
1469 summary->set_in(1, Location::RegisterLocation(ECX)); | 1455 summary->set_in(1, Location::FixedRegisterOrConstant(right(), ECX)); |
1470 summary->set_out(Location::SameAsFirstInput()); | 1456 summary->set_out(Location::SameAsFirstInput()); |
1471 return summary; | 1457 return summary; |
1472 } else if (op_kind() == Token::kSHL) { | 1458 } else if (op_kind() == Token::kSHL) { |
1473 // Two Smi operands can easily overflow into Mint. | 1459 // Two Smi operands can easily overflow into Mint. |
1474 const intptr_t kNumTemps = 2; | 1460 const intptr_t kNumTemps = 2; |
1475 LocationSummary* summary = | 1461 LocationSummary* summary = |
1476 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall); | 1462 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall); |
1477 summary->set_in(0, Location::RegisterLocation(EAX)); | 1463 summary->set_in(0, Location::RegisterLocation(EAX)); |
1478 summary->set_in(1, Location::RegisterLocation(EDX)); | 1464 summary->set_in(1, Location::RegisterLocation(EDX)); |
1479 summary->set_temp(0, Location::RegisterLocation(EBX)); | 1465 summary->set_temp(0, Location::RegisterLocation(EBX)); |
1480 summary->set_temp(1, Location::RegisterLocation(ECX)); | 1466 summary->set_temp(1, Location::RegisterLocation(ECX)); |
1481 summary->set_out(Location::RegisterLocation(EAX)); | 1467 summary->set_out(Location::RegisterLocation(EAX)); |
1482 return summary; | 1468 return summary; |
1483 } else { | 1469 } else { |
1484 const intptr_t kNumTemps = 0; | 1470 const intptr_t kNumTemps = 0; |
1485 LocationSummary* summary = | 1471 LocationSummary* summary = |
1486 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | 1472 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); |
1487 summary->set_in(0, Location::RequiresRegister()); | 1473 summary->set_in(0, Location::RequiresRegister()); |
1488 summary->set_in(1, Location::RequiresRegister()); | 1474 summary->set_in(1, Location::RegisterOrConstant(right())); |
1489 summary->set_out(Location::SameAsFirstInput()); | 1475 summary->set_out(Location::SameAsFirstInput()); |
1490 return summary; | 1476 return summary; |
1491 } | 1477 } |
1492 } | 1478 } |
1493 | 1479 |
1494 | 1480 |
1495 void BinarySmiOpComp::EmitNativeCode(FlowGraphCompiler* compiler) { | 1481 void BinarySmiOpComp::EmitNativeCode(FlowGraphCompiler* compiler) { |
1496 Register left = locs()->in(0).reg(); | 1482 Register left = locs()->in(0).reg(); |
1497 Register result = locs()->out().reg(); | 1483 Register result = locs()->out().reg(); |
1498 ASSERT(left == result); | 1484 ASSERT(left == result); |
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2218 void CheckSmiComp::EmitNativeCode(FlowGraphCompiler* compiler) { | 2204 void CheckSmiComp::EmitNativeCode(FlowGraphCompiler* compiler) { |
2219 Register value = locs()->in(0).reg(); | 2205 Register value = locs()->in(0).reg(); |
2220 Label* deopt = compiler->AddDeoptStub(deopt_id(), | 2206 Label* deopt = compiler->AddDeoptStub(deopt_id(), |
2221 kDeoptCheckSmi); | 2207 kDeoptCheckSmi); |
2222 __ testl(value, Immediate(kSmiTagMask)); | 2208 __ testl(value, Immediate(kSmiTagMask)); |
2223 __ j(NOT_ZERO, deopt); | 2209 __ j(NOT_ZERO, deopt); |
2224 } | 2210 } |
2225 | 2211 |
2226 | 2212 |
2227 LocationSummary* CheckArrayBoundComp::MakeLocationSummary() const { | 2213 LocationSummary* CheckArrayBoundComp::MakeLocationSummary() const { |
2228 return LocationSummary::Make(2, | 2214 const intptr_t kNumInputs = 2; |
2229 Location::NoLocation(), | 2215 const intptr_t kNumTemps = 0; |
2230 LocationSummary::kNoCall); | 2216 LocationSummary* locs = |
| 2217 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| 2218 locs->set_in(0, Location::RequiresRegister()); |
| 2219 locs->set_in(1, Location::RegisterOrConstant(index())); |
| 2220 return locs; |
2231 } | 2221 } |
2232 | 2222 |
2233 | 2223 |
2234 void CheckArrayBoundComp::EmitNativeCode(FlowGraphCompiler* compiler) { | 2224 void CheckArrayBoundComp::EmitNativeCode(FlowGraphCompiler* compiler) { |
2235 Register receiver = locs()->in(0).reg(); | 2225 Register receiver = locs()->in(0).reg(); |
2236 Register index = locs()->in(1).reg(); | |
2237 | 2226 |
2238 const DeoptReasonId deopt_reason = | 2227 const DeoptReasonId deopt_reason = |
2239 (array_type() == kGrowableObjectArrayCid) ? | 2228 (array_type() == kGrowableObjectArrayCid) ? |
2240 kDeoptLoadIndexedGrowableArray : kDeoptLoadIndexedFixedArray; | 2229 kDeoptLoadIndexedGrowableArray : kDeoptLoadIndexedFixedArray; |
2241 Label* deopt = compiler->AddDeoptStub(deopt_id(), | 2230 Label* deopt = compiler->AddDeoptStub(deopt_id(), |
2242 deopt_reason); | 2231 deopt_reason); |
2243 switch (array_type()) { | 2232 ASSERT(array_type() == kArrayCid || |
2244 case kArrayCid: | 2233 array_type() == kImmutableArrayCid || |
2245 case kImmutableArrayCid: | 2234 array_type() == kGrowableObjectArrayCid); |
2246 __ cmpl(index, FieldAddress(receiver, Array::length_offset())); | 2235 intptr_t length_offset = (array_type() == kGrowableObjectArrayCid) |
2247 break; | 2236 ? GrowableObjectArray::length_offset() |
2248 case kGrowableObjectArrayCid: | 2237 : Array::length_offset(); |
2249 __ cmpl(index, | 2238 |
2250 FieldAddress(receiver, GrowableObjectArray::length_offset())); | 2239 if (locs()->in(1).IsConstant()) { |
2251 break; | 2240 const Object& constant = locs()->in(1).constant(); |
| 2241 ASSERT(constant.IsSmi()); |
| 2242 const int32_t imm = |
| 2243 reinterpret_cast<int32_t>(constant.raw()); |
| 2244 __ cmpl(FieldAddress(receiver, length_offset), Immediate(imm)); |
| 2245 __ j(BELOW_EQUAL, deopt); |
| 2246 } else { |
| 2247 Register index = locs()->in(1).reg(); |
| 2248 __ cmpl(index, FieldAddress(receiver, length_offset)); |
| 2249 __ j(ABOVE_EQUAL, deopt); |
2252 } | 2250 } |
2253 __ j(ABOVE_EQUAL, deopt); | |
2254 } | 2251 } |
2255 | 2252 |
2256 | 2253 |
2257 } // namespace dart | 2254 } // namespace dart |
2258 | 2255 |
2259 #undef __ | 2256 #undef __ |
2260 | 2257 |
2261 #endif // defined TARGET_ARCH_X64 | 2258 #endif // defined TARGET_ARCH_X64 |
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