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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/ast/scopes.h" | 5 #include "src/ast/scopes.h" |
6 #include "src/code-stubs.h" | 6 #include "src/code-stubs.h" |
7 #include "src/compiler.h" | 7 #include "src/compiler.h" |
8 #include "src/compiler/common-operator.h" | 8 #include "src/compiler/common-operator.h" |
9 #include "src/compiler/frame.h" | 9 #include "src/compiler/frame.h" |
10 #include "src/compiler/linkage.h" | 10 #include "src/compiler/linkage.h" |
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316 types.AddParam(MachineType::Int32()); | 316 types.AddParam(MachineType::Int32()); |
317 | 317 |
318 // Add context. | 318 // Add context. |
319 locations.AddParam(regloc(kContextRegister)); | 319 locations.AddParam(regloc(kContextRegister)); |
320 types.AddParam(MachineType::AnyTagged()); | 320 types.AddParam(MachineType::AnyTagged()); |
321 | 321 |
322 // The target for JS function calls is the JSFunction object. | 322 // The target for JS function calls is the JSFunction object. |
323 MachineType target_type = MachineType::AnyTagged(); | 323 MachineType target_type = MachineType::AnyTagged(); |
324 // When entering into an OSR function from unoptimized code the JSFunction | 324 // When entering into an OSR function from unoptimized code the JSFunction |
325 // is not in a register, but it is on the stack in the marker spill slot. | 325 // is not in a register, but it is on the stack in the marker spill slot. |
326 LinkageLocation target_loc = is_osr ? LinkageLocation::ForSavedCallerMarker() | 326 LinkageLocation target_loc = is_osr |
327 : regloc(kJSFunctionRegister); | 327 ? LinkageLocation::ForSavedCallerFunction() |
| 328 : regloc(kJSFunctionRegister); |
328 return new (zone) CallDescriptor( // -- | 329 return new (zone) CallDescriptor( // -- |
329 CallDescriptor::kCallJSFunction, // kind | 330 CallDescriptor::kCallJSFunction, // kind |
330 target_type, // target MachineType | 331 target_type, // target MachineType |
331 target_loc, // target location | 332 target_loc, // target location |
332 types.Build(), // machine_sig | 333 types.Build(), // machine_sig |
333 locations.Build(), // location_sig | 334 locations.Build(), // location_sig |
334 js_parameter_count, // stack_parameter_count | 335 js_parameter_count, // stack_parameter_count |
335 Operator::kNoProperties, // properties | 336 Operator::kNoProperties, // properties |
336 kNoCalleeSaved, // callee-saved | 337 kNoCalleeSaved, // callee-saved |
337 kNoCalleeSaved, // callee-saved fp | 338 kNoCalleeSaved, // callee-saved fp |
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429 return LinkageLocation::ForCalleeFrameSlot(spill_index); | 430 return LinkageLocation::ForCalleeFrameSlot(spill_index); |
430 } else { | 431 } else { |
431 // Parameter. Use the assigned location from the incoming call descriptor. | 432 // Parameter. Use the assigned location from the incoming call descriptor. |
432 int parameter_index = 1 + index; // skip index 0, which is the target. | 433 int parameter_index = 1 + index; // skip index 0, which is the target. |
433 return incoming_->GetInputLocation(parameter_index); | 434 return incoming_->GetInputLocation(parameter_index); |
434 } | 435 } |
435 } | 436 } |
436 | 437 |
437 | 438 |
438 bool Linkage::ParameterHasSecondaryLocation(int index) const { | 439 bool Linkage::ParameterHasSecondaryLocation(int index) const { |
439 if (incoming_->kind() != CallDescriptor::kCallJSFunction) return false; | 440 if (!incoming_->IsJSFunctionCall()) return false; |
440 LinkageLocation loc = GetParameterLocation(index); | 441 LinkageLocation loc = GetParameterLocation(index); |
441 return (loc == regloc(kJSFunctionRegister) || | 442 return (loc == regloc(kJSFunctionRegister) || |
442 loc == regloc(kContextRegister)); | 443 loc == regloc(kContextRegister)); |
443 } | 444 } |
444 | 445 |
445 LinkageLocation Linkage::GetParameterSecondaryLocation(int index) const { | 446 LinkageLocation Linkage::GetParameterSecondaryLocation(int index) const { |
446 DCHECK(ParameterHasSecondaryLocation(index)); | 447 DCHECK(ParameterHasSecondaryLocation(index)); |
447 LinkageLocation loc = GetParameterLocation(index); | 448 LinkageLocation loc = GetParameterLocation(index); |
448 | 449 |
449 if (loc == regloc(kJSFunctionRegister)) { | 450 if (loc == regloc(kJSFunctionRegister)) { |
450 return LinkageLocation::ForCalleeFrameSlot(Frame::kJSFunctionSlot); | 451 return LinkageLocation::ForCalleeFrameSlot(Frame::kJSFunctionSlot); |
451 } else { | 452 } else { |
452 DCHECK(loc == regloc(kContextRegister)); | 453 DCHECK(loc == regloc(kContextRegister)); |
453 return LinkageLocation::ForCalleeFrameSlot(Frame::kContextSlot); | 454 return LinkageLocation::ForCalleeFrameSlot(Frame::kContextSlot); |
454 } | 455 } |
455 } | 456 } |
456 | 457 |
457 | 458 |
458 } // namespace compiler | 459 } // namespace compiler |
459 } // namespace internal | 460 } // namespace internal |
460 } // namespace v8 | 461 } // namespace v8 |
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