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Issue 2311203002: Move kMaxRegularHeapObjectSize into globals (Closed)
Patch Set: Saving the file helps... Created 4 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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 <limits.h> // For LONG_MIN, LONG_MAX. 5 #include <limits.h> // For LONG_MIN, LONG_MAX.
6 6
7 #if V8_TARGET_ARCH_MIPS 7 #if V8_TARGET_ARCH_MIPS
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/base/division-by-constant.h" 10 #include "src/base/division-by-constant.h"
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4202 sw(a1, MemOperand(at)); 4202 sw(a1, MemOperand(at));
4203 } 4203 }
4204 4204
4205 4205
4206 void MacroAssembler::Allocate(int object_size, 4206 void MacroAssembler::Allocate(int object_size,
4207 Register result, 4207 Register result,
4208 Register scratch1, 4208 Register scratch1,
4209 Register scratch2, 4209 Register scratch2,
4210 Label* gc_required, 4210 Label* gc_required,
4211 AllocationFlags flags) { 4211 AllocationFlags flags) {
4212 DCHECK(object_size <= Page::kMaxRegularHeapObjectSize); 4212 DCHECK(object_size <= kMaxRegularHeapObjectSize);
4213 DCHECK((flags & ALLOCATION_FOLDED) == 0); 4213 DCHECK((flags & ALLOCATION_FOLDED) == 0);
4214 if (!FLAG_inline_new) { 4214 if (!FLAG_inline_new) {
4215 if (emit_debug_code()) { 4215 if (emit_debug_code()) {
4216 // Trash the registers to simulate an allocation failure. 4216 // Trash the registers to simulate an allocation failure.
4217 li(result, 0x7091); 4217 li(result, 0x7091);
4218 li(scratch1, 0x7191); 4218 li(scratch1, 0x7191);
4219 li(scratch2, 0x7291); 4219 li(scratch2, 0x7291);
4220 } 4220 }
4221 jmp(gc_required); 4221 jmp(gc_required);
4222 return; 4222 return;
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4384 sw(result_end, MemOperand(top_address)); 4384 sw(result_end, MemOperand(top_address));
4385 } 4385 }
4386 4386
4387 // Tag object. 4387 // Tag object.
4388 Addu(result, result, Operand(kHeapObjectTag)); 4388 Addu(result, result, Operand(kHeapObjectTag));
4389 } 4389 }
4390 4390
4391 void MacroAssembler::FastAllocate(int object_size, Register result, 4391 void MacroAssembler::FastAllocate(int object_size, Register result,
4392 Register scratch1, Register scratch2, 4392 Register scratch1, Register scratch2,
4393 AllocationFlags flags) { 4393 AllocationFlags flags) {
4394 DCHECK(object_size <= Page::kMaxRegularHeapObjectSize); 4394 DCHECK(object_size <= kMaxRegularHeapObjectSize);
4395 DCHECK(!AreAliased(result, scratch1, scratch2, t9, at)); 4395 DCHECK(!AreAliased(result, scratch1, scratch2, t9, at));
4396 4396
4397 // Make object size into bytes. 4397 // Make object size into bytes.
4398 if ((flags & SIZE_IN_WORDS) != 0) { 4398 if ((flags & SIZE_IN_WORDS) != 0) {
4399 object_size *= kPointerSize; 4399 object_size *= kPointerSize;
4400 } 4400 }
4401 DCHECK_EQ(0, object_size & kObjectAlignmentMask); 4401 DCHECK_EQ(0, object_size & kObjectAlignmentMask);
4402 4402
4403 ExternalReference allocation_top = 4403 ExternalReference allocation_top =
4404 AllocationUtils::GetAllocationTopReference(isolate(), flags); 4404 AllocationUtils::GetAllocationTopReference(isolate(), flags);
(...skipping 2575 matching lines...) Expand 10 before | Expand all | Expand 10 after
6980 if (mag.shift > 0) sra(result, result, mag.shift); 6980 if (mag.shift > 0) sra(result, result, mag.shift);
6981 srl(at, dividend, 31); 6981 srl(at, dividend, 31);
6982 Addu(result, result, Operand(at)); 6982 Addu(result, result, Operand(at));
6983 } 6983 }
6984 6984
6985 6985
6986 } // namespace internal 6986 } // namespace internal
6987 } // namespace v8 6987 } // namespace v8
6988 6988
6989 #endif // V8_TARGET_ARCH_MIPS 6989 #endif // V8_TARGET_ARCH_MIPS
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