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Side by Side Diff: src/ia32/virtual-frame-ia32.h

Issue 1207006: Rename NumberInfo to TypeInfo.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: changed project files Created 10 years, 9 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved. 1 // Copyright 2009 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #ifndef V8_IA32_VIRTUAL_FRAME_IA32_H_ 28 #ifndef V8_IA32_VIRTUAL_FRAME_IA32_H_
29 #define V8_IA32_VIRTUAL_FRAME_IA32_H_ 29 #define V8_IA32_VIRTUAL_FRAME_IA32_H_
30 30
31 #include "number-info.h" 31 #include "type-info.h"
32 #include "register-allocator.h" 32 #include "register-allocator.h"
33 #include "scopes.h" 33 #include "scopes.h"
34 34
35 namespace v8 { 35 namespace v8 {
36 namespace internal { 36 namespace internal {
37 37
38 // ------------------------------------------------------------------------- 38 // -------------------------------------------------------------------------
39 // Virtual frames 39 // Virtual frames
40 // 40 //
41 // The virtual frame is an abstraction of the physical stack frame. It 41 // The virtual frame is an abstraction of the physical stack frame. It
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77 77
78 // Construct a virtual frame as a clone of an existing one. 78 // Construct a virtual frame as a clone of an existing one.
79 explicit inline VirtualFrame(VirtualFrame* original); 79 explicit inline VirtualFrame(VirtualFrame* original);
80 80
81 CodeGenerator* cgen() { return CodeGeneratorScope::Current(); } 81 CodeGenerator* cgen() { return CodeGeneratorScope::Current(); }
82 82
83 MacroAssembler* masm() { return cgen()->masm(); } 83 MacroAssembler* masm() { return cgen()->masm(); }
84 84
85 // Create a duplicate of an existing valid frame element. 85 // Create a duplicate of an existing valid frame element.
86 FrameElement CopyElementAt(int index, 86 FrameElement CopyElementAt(int index,
87 NumberInfo info = NumberInfo::Uninitialized()); 87 TypeInfo info = TypeInfo::Uninitialized());
88 88
89 // The number of elements on the virtual frame. 89 // The number of elements on the virtual frame.
90 int element_count() { return elements_.length(); } 90 int element_count() { return elements_.length(); }
91 91
92 // The height of the virtual expression stack. 92 // The height of the virtual expression stack.
93 int height() { return element_count() - expression_base_index(); } 93 int height() { return element_count() - expression_base_index(); }
94 94
95 int register_location(int num) { 95 int register_location(int num) {
96 ASSERT(num >= 0 && num < RegisterAllocator::kNumRegisters); 96 ASSERT(num >= 0 && num < RegisterAllocator::kNumRegisters);
97 return register_locations_[num]; 97 return register_locations_[num];
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391 Result Pop(); 391 Result Pop();
392 392
393 // Pop and save an element from the top of the expression stack and 393 // Pop and save an element from the top of the expression stack and
394 // emit a corresponding pop instruction. 394 // emit a corresponding pop instruction.
395 void EmitPop(Register reg); 395 void EmitPop(Register reg);
396 void EmitPop(Operand operand); 396 void EmitPop(Operand operand);
397 397
398 // Push an element on top of the expression stack and emit a 398 // Push an element on top of the expression stack and emit a
399 // corresponding push instruction. 399 // corresponding push instruction.
400 void EmitPush(Register reg, 400 void EmitPush(Register reg,
401 NumberInfo info = NumberInfo::Unknown()); 401 TypeInfo info = TypeInfo::Unknown());
402 void EmitPush(Operand operand, 402 void EmitPush(Operand operand,
403 NumberInfo info = NumberInfo::Unknown()); 403 TypeInfo info = TypeInfo::Unknown());
404 void EmitPush(Immediate immediate, 404 void EmitPush(Immediate immediate,
405 NumberInfo info = NumberInfo::Unknown()); 405 TypeInfo info = TypeInfo::Unknown());
406 406
407 // Push an element on the virtual frame. 407 // Push an element on the virtual frame.
408 inline void Push(Register reg, NumberInfo info = NumberInfo::Unknown()); 408 inline void Push(Register reg, TypeInfo info = TypeInfo::Unknown());
409 inline void Push(Handle<Object> value); 409 inline void Push(Handle<Object> value);
410 inline void Push(Smi* value); 410 inline void Push(Smi* value);
411 411
412 void PushUntaggedElement(Handle<Object> value); 412 void PushUntaggedElement(Handle<Object> value);
413 413
414 // Pushing a result invalidates it (its contents become owned by the 414 // Pushing a result invalidates it (its contents become owned by the
415 // frame). 415 // frame).
416 void Push(Result* result) { 416 void Push(Result* result) {
417 // This assert will trigger if you try to push the same value twice. 417 // This assert will trigger if you try to push the same value twice.
418 ASSERT(result->is_valid()); 418 ASSERT(result->is_valid());
419 if (result->is_register()) { 419 if (result->is_register()) {
420 Push(result->reg(), result->number_info()); 420 Push(result->reg(), result->type_info());
421 } else { 421 } else {
422 ASSERT(result->is_constant()); 422 ASSERT(result->is_constant());
423 Push(result->handle()); 423 Push(result->handle());
424 } 424 }
425 if (cgen()->in_safe_int32_mode()) { 425 if (cgen()->in_safe_int32_mode()) {
426 ASSERT(result->is_untagged_int32()); 426 ASSERT(result->is_untagged_int32());
427 elements_[element_count() - 1].set_untagged_int32(true); 427 elements_[element_count() - 1].set_untagged_int32(true);
428 } 428 }
429 result->Unuse(); 429 result->Unuse();
430 } 430 }
431 431
432 // Pushing an expression expects that the expression is trivial (according 432 // Pushing an expression expects that the expression is trivial (according
433 // to Expression::IsTrivial). 433 // to Expression::IsTrivial).
434 void Push(Expression* expr); 434 void Push(Expression* expr);
435 435
436 // Nip removes zero or more elements from immediately below the top 436 // Nip removes zero or more elements from immediately below the top
437 // of the frame, leaving the previous top-of-frame value on top of 437 // of the frame, leaving the previous top-of-frame value on top of
438 // the frame. Nip(k) is equivalent to x = Pop(), Drop(k), Push(x). 438 // the frame. Nip(k) is equivalent to x = Pop(), Drop(k), Push(x).
439 inline void Nip(int num_dropped); 439 inline void Nip(int num_dropped);
440 440
441 // Check that the frame has no elements containing untagged int32 elements. 441 // Check that the frame has no elements containing untagged int32 elements.
442 bool HasNoUntaggedInt32Elements() { 442 bool HasNoUntaggedInt32Elements() {
443 for (int i = 0; i < element_count(); ++i) { 443 for (int i = 0; i < element_count(); ++i) {
444 if (elements_[i].is_untagged_int32()) return false; 444 if (elements_[i].is_untagged_int32()) return false;
445 } 445 }
446 return true; 446 return true;
447 } 447 }
448 448
449 // Update the type information of a variable frame element directly. 449 // Update the type information of a variable frame element directly.
450 inline void SetTypeForLocalAt(int index, NumberInfo info); 450 inline void SetTypeForLocalAt(int index, TypeInfo info);
451 inline void SetTypeForParamAt(int index, NumberInfo info); 451 inline void SetTypeForParamAt(int index, TypeInfo info);
452 452
453 private: 453 private:
454 static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset; 454 static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset;
455 static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset; 455 static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset;
456 static const int kContextOffset = StandardFrameConstants::kContextOffset; 456 static const int kContextOffset = StandardFrameConstants::kContextOffset;
457 457
458 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; 458 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize;
459 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. 459 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots.
460 460
461 ZoneList<FrameElement> elements_; 461 ZoneList<FrameElement> elements_;
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623 inline bool Equals(VirtualFrame* other); 623 inline bool Equals(VirtualFrame* other);
624 624
625 // Classes that need raw access to the elements_ array. 625 // Classes that need raw access to the elements_ array.
626 friend class DeferredCode; 626 friend class DeferredCode;
627 friend class JumpTarget; 627 friend class JumpTarget;
628 }; 628 };
629 629
630 } } // namespace v8::internal 630 } } // namespace v8::internal
631 631
632 #endif // V8_IA32_VIRTUAL_FRAME_IA32_H_ 632 #endif // V8_IA32_VIRTUAL_FRAME_IA32_H_
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