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Issue 1911253002: Never include_isolate or allow_embedded_addresses. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 8 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, 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" 5 #include "vm/globals.h"
6 #if defined(TARGET_ARCH_X64) 6 #if defined(TARGET_ARCH_X64)
7 7
8 #include "vm/assembler.h" 8 #include "vm/assembler.h"
9 #include "vm/compiler.h" 9 #include "vm/compiler.h"
10 #include "vm/dart_entry.h" 10 #include "vm/dart_entry.h"
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583 __ j(LESS, &slow_case); 583 __ j(LESS, &slow_case);
584 // Check for maximum allowed length. 584 // Check for maximum allowed length.
585 const Immediate& max_len = 585 const Immediate& max_len =
586 Immediate(reinterpret_cast<int64_t>(Smi::New(Array::kMaxElements))); 586 Immediate(reinterpret_cast<int64_t>(Smi::New(Array::kMaxElements)));
587 __ cmpq(RDI, max_len); 587 __ cmpq(RDI, max_len);
588 __ j(GREATER, &slow_case); 588 __ j(GREATER, &slow_case);
589 589
590 // Check for allocation tracing. 590 // Check for allocation tracing.
591 __ MaybeTraceAllocation(kArrayCid, 591 __ MaybeTraceAllocation(kArrayCid,
592 &slow_case, 592 &slow_case,
593 Assembler::kFarJump, 593 Assembler::kFarJump);
594 /* inline_isolate = */ false);
595 594
596 const intptr_t fixed_size = sizeof(RawArray) + kObjectAlignment - 1; 595 const intptr_t fixed_size = sizeof(RawArray) + kObjectAlignment - 1;
597 __ leaq(RDI, Address(RDI, TIMES_4, fixed_size)); // RDI is a Smi. 596 __ leaq(RDI, Address(RDI, TIMES_4, fixed_size)); // RDI is a Smi.
598 ASSERT(kSmiTagShift == 1); 597 ASSERT(kSmiTagShift == 1);
599 __ andq(RDI, Immediate(-kObjectAlignment)); 598 __ andq(RDI, Immediate(-kObjectAlignment));
600 599
601 const intptr_t cid = kArrayCid; 600 const intptr_t cid = kArrayCid;
602 Heap::Space space = Heap::SpaceForAllocation(cid); 601 Heap::Space space = Heap::SpaceForAllocation(cid);
603 __ movq(R13, Address(THR, Thread::heap_offset())); 602 __ movq(R13, Address(THR, Thread::heap_offset()));
604 __ movq(RAX, Address(R13, Heap::TopOffset(space))); 603 __ movq(RAX, Address(R13, Heap::TopOffset(space)));
605 604
606 // RDI: allocation size. 605 // RDI: allocation size.
607 __ movq(RCX, RAX); 606 __ movq(RCX, RAX);
608 __ addq(RCX, RDI); 607 __ addq(RCX, RDI);
609 __ j(CARRY, &slow_case); 608 __ j(CARRY, &slow_case);
610 609
611 // Check if the allocation fits into the remaining space. 610 // Check if the allocation fits into the remaining space.
612 // RAX: potential new object start. 611 // RAX: potential new object start.
613 // RCX: potential next object start. 612 // RCX: potential next object start.
614 // RDI: allocation size. 613 // RDI: allocation size.
615 // R13: heap. 614 // R13: heap.
616 __ cmpq(RCX, Address(R13, Heap::EndOffset(space))); 615 __ cmpq(RCX, Address(R13, Heap::EndOffset(space)));
617 __ j(ABOVE_EQUAL, &slow_case); 616 __ j(ABOVE_EQUAL, &slow_case);
618 617
619 // Successfully allocated the object(s), now update top to point to 618 // Successfully allocated the object(s), now update top to point to
620 // next object start and initialize the object. 619 // next object start and initialize the object.
621 __ movq(Address(R13, Heap::TopOffset(space)), RCX); 620 __ movq(Address(R13, Heap::TopOffset(space)), RCX);
622 __ addq(RAX, Immediate(kHeapObjectTag)); 621 __ addq(RAX, Immediate(kHeapObjectTag));
623 __ UpdateAllocationStatsWithSize(cid, RDI, space, 622 __ UpdateAllocationStatsWithSize(cid, RDI, space);
624 /* inline_isolate = */ false);
625 // Initialize the tags. 623 // Initialize the tags.
626 // RAX: new object start as a tagged pointer. 624 // RAX: new object start as a tagged pointer.
627 // RDI: allocation size. 625 // RDI: allocation size.
628 { 626 {
629 Label size_tag_overflow, done; 627 Label size_tag_overflow, done;
630 __ cmpq(RDI, Immediate(RawObject::SizeTag::kMaxSizeTag)); 628 __ cmpq(RDI, Immediate(RawObject::SizeTag::kMaxSizeTag));
631 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); 629 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump);
632 __ shlq(RDI, Immediate(RawObject::kSizeTagPos - kObjectAlignmentLog2)); 630 __ shlq(RDI, Immediate(RawObject::kSizeTagPos - kObjectAlignmentLog2));
633 __ jmp(&done, Assembler::kNearJump); 631 __ jmp(&done, Assembler::kNearJump);
634 632
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840 Label slow_case; 838 Label slow_case;
841 // First compute the rounded instance size. 839 // First compute the rounded instance size.
842 // R10: number of context variables. 840 // R10: number of context variables.
843 intptr_t fixed_size = (sizeof(RawContext) + kObjectAlignment - 1); 841 intptr_t fixed_size = (sizeof(RawContext) + kObjectAlignment - 1);
844 __ leaq(R13, Address(R10, TIMES_8, fixed_size)); 842 __ leaq(R13, Address(R10, TIMES_8, fixed_size));
845 __ andq(R13, Immediate(-kObjectAlignment)); 843 __ andq(R13, Immediate(-kObjectAlignment));
846 844
847 // Check for allocation tracing. 845 // Check for allocation tracing.
848 __ MaybeTraceAllocation(kContextCid, 846 __ MaybeTraceAllocation(kContextCid,
849 &slow_case, 847 &slow_case,
850 Assembler::kFarJump, 848 Assembler::kFarJump);
851 /* inline_isolate = */ false);
852 849
853 // Now allocate the object. 850 // Now allocate the object.
854 // R10: number of context variables. 851 // R10: number of context variables.
855 const intptr_t cid = kContextCid; 852 const intptr_t cid = kContextCid;
856 Heap::Space space = Heap::SpaceForAllocation(cid); 853 Heap::Space space = Heap::SpaceForAllocation(cid);
857 __ movq(RCX, Address(THR, Thread::heap_offset())); 854 __ movq(RCX, Address(THR, Thread::heap_offset()));
858 __ movq(RAX, Address(RCX, Heap::TopOffset(space))); 855 __ movq(RAX, Address(RCX, Heap::TopOffset(space)));
859 __ addq(R13, RAX); 856 __ addq(R13, RAX);
860 // Check if the allocation fits into the remaining space. 857 // Check if the allocation fits into the remaining space.
861 // RAX: potential new object. 858 // RAX: potential new object.
(...skipping 11 matching lines...) Expand all
873 // next object start and initialize the object. 870 // next object start and initialize the object.
874 // RAX: new object. 871 // RAX: new object.
875 // R13: next object start. 872 // R13: next object start.
876 // R10: number of context variables. 873 // R10: number of context variables.
877 // RCX: heap. 874 // RCX: heap.
878 __ movq(Address(RCX, Heap::TopOffset(space)), R13); 875 __ movq(Address(RCX, Heap::TopOffset(space)), R13);
879 // R13: Size of allocation in bytes. 876 // R13: Size of allocation in bytes.
880 __ subq(R13, RAX); 877 __ subq(R13, RAX);
881 __ addq(RAX, Immediate(kHeapObjectTag)); 878 __ addq(RAX, Immediate(kHeapObjectTag));
882 // Generate isolate-independent code to allow sharing between isolates. 879 // Generate isolate-independent code to allow sharing between isolates.
883 __ UpdateAllocationStatsWithSize(cid, R13, space, 880 __ UpdateAllocationStatsWithSize(cid, R13, space);
884 /* inline_isolate */ false);
885 881
886 // Calculate the size tag. 882 // Calculate the size tag.
887 // RAX: new object. 883 // RAX: new object.
888 // R10: number of context variables. 884 // R10: number of context variables.
889 { 885 {
890 Label size_tag_overflow, done; 886 Label size_tag_overflow, done;
891 __ leaq(R13, Address(R10, TIMES_8, fixed_size)); 887 __ leaq(R13, Address(R10, TIMES_8, fixed_size));
892 __ andq(R13, Immediate(-kObjectAlignment)); 888 __ andq(R13, Immediate(-kObjectAlignment));
893 __ cmpq(R13, Immediate(RawObject::SizeTag::kMaxSizeTag)); 889 __ cmpq(R13, Immediate(RawObject::SizeTag::kMaxSizeTag));
894 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); 890 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump);
(...skipping 170 matching lines...) Expand 10 before | Expand all | Expand 10 after
1065 // RAX: potential new object start. 1061 // RAX: potential new object start.
1066 // RBX: potential next object start. 1062 // RBX: potential next object start.
1067 // RCX: heap. 1063 // RCX: heap.
1068 __ cmpq(RBX, Address(RCX, Heap::EndOffset(space))); 1064 __ cmpq(RBX, Address(RCX, Heap::EndOffset(space)));
1069 if (FLAG_use_slow_path) { 1065 if (FLAG_use_slow_path) {
1070 __ jmp(&slow_case); 1066 __ jmp(&slow_case);
1071 } else { 1067 } else {
1072 __ j(ABOVE_EQUAL, &slow_case); 1068 __ j(ABOVE_EQUAL, &slow_case);
1073 } 1069 }
1074 __ movq(Address(RCX, Heap::TopOffset(space)), RBX); 1070 __ movq(Address(RCX, Heap::TopOffset(space)), RBX);
1075 __ UpdateAllocationStats(cls.id(), space, /* inline_isolate = */ false); 1071 __ UpdateAllocationStats(cls.id(), space);
1076 1072
1077 // RAX: new object start (untagged). 1073 // RAX: new object start (untagged).
1078 // RBX: next object start. 1074 // RBX: next object start.
1079 // RDX: new object type arguments (if is_cls_parameterized). 1075 // RDX: new object type arguments (if is_cls_parameterized).
1080 // Set the tags. 1076 // Set the tags.
1081 uword tags = 0; 1077 uword tags = 0;
1082 tags = RawObject::SizeTag::update(instance_size, tags); 1078 tags = RawObject::SizeTag::update(instance_size, tags);
1083 ASSERT(cls.id() != kIllegalCid); 1079 ASSERT(cls.id() != kIllegalCid);
1084 tags = RawObject::ClassIdTag::update(cls.id(), tags); 1080 tags = RawObject::ClassIdTag::update(cls.id(), tags);
1085 __ movq(Address(RAX, Instance::tags_offset()), Immediate(tags)); 1081 __ movq(Address(RAX, Instance::tags_offset()), Immediate(tags));
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2221 } 2217 }
2222 2218
2223 2219
2224 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) { 2220 void StubCode::GenerateFrameAwaitingMaterializationStub(Assembler* assembler) {
2225 __ int3(); 2221 __ int3();
2226 } 2222 }
2227 2223
2228 } // namespace dart 2224 } // namespace dart
2229 2225
2230 #endif // defined TARGET_ARCH_X64 2226 #endif // defined TARGET_ARCH_X64
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