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Side by Side Diff: src/s390/macro-assembler-s390.cc

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 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 <assert.h> // For assert 5 #include <assert.h> // For assert
6 #include <limits.h> // For LONG_MIN, LONG_MAX. 6 #include <limits.h> // For LONG_MIN, LONG_MAX.
7 7
8 #if V8_TARGET_ARCH_S390 8 #if V8_TARGET_ARCH_S390
9 9
10 #include "src/base/bits.h" 10 #include "src/base/bits.h"
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1699 1699
1700 // Get the value at the masked, scaled index and return. 1700 // Get the value at the masked, scaled index and return.
1701 const int kValueOffset = 1701 const int kValueOffset =
1702 SeededNumberDictionary::kElementsStartOffset + kPointerSize; 1702 SeededNumberDictionary::kElementsStartOffset + kPointerSize;
1703 LoadP(result, FieldMemOperand(t2, kValueOffset)); 1703 LoadP(result, FieldMemOperand(t2, kValueOffset));
1704 } 1704 }
1705 1705
1706 void MacroAssembler::Allocate(int object_size, Register result, 1706 void MacroAssembler::Allocate(int object_size, Register result,
1707 Register scratch1, Register scratch2, 1707 Register scratch1, Register scratch2,
1708 Label* gc_required, AllocationFlags flags) { 1708 Label* gc_required, AllocationFlags flags) {
1709 DCHECK(object_size <= Page::kMaxRegularHeapObjectSize); 1709 DCHECK(object_size <= kMaxRegularHeapObjectSize);
1710 DCHECK((flags & ALLOCATION_FOLDED) == 0); 1710 DCHECK((flags & ALLOCATION_FOLDED) == 0);
1711 if (!FLAG_inline_new) { 1711 if (!FLAG_inline_new) {
1712 if (emit_debug_code()) { 1712 if (emit_debug_code()) {
1713 // Trash the registers to simulate an allocation failure. 1713 // Trash the registers to simulate an allocation failure.
1714 LoadImmP(result, Operand(0x7091)); 1714 LoadImmP(result, Operand(0x7091));
1715 LoadImmP(scratch1, Operand(0x7191)); 1715 LoadImmP(scratch1, Operand(0x7191));
1716 LoadImmP(scratch2, Operand(0x7291)); 1716 LoadImmP(scratch2, Operand(0x7291));
1717 } 1717 }
1718 b(gc_required); 1718 b(gc_required);
1719 return; 1719 return;
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1955 } 1955 }
1956 StoreP(result_end, MemOperand(top_address)); 1956 StoreP(result_end, MemOperand(top_address));
1957 1957
1958 // Tag object. 1958 // Tag object.
1959 AddP(result, result, Operand(kHeapObjectTag)); 1959 AddP(result, result, Operand(kHeapObjectTag));
1960 } 1960 }
1961 1961
1962 void MacroAssembler::FastAllocate(int object_size, Register result, 1962 void MacroAssembler::FastAllocate(int object_size, Register result,
1963 Register scratch1, Register scratch2, 1963 Register scratch1, Register scratch2,
1964 AllocationFlags flags) { 1964 AllocationFlags flags) {
1965 DCHECK(object_size <= Page::kMaxRegularHeapObjectSize); 1965 DCHECK(object_size <= kMaxRegularHeapObjectSize);
1966 DCHECK(!AreAliased(result, scratch1, scratch2, ip)); 1966 DCHECK(!AreAliased(result, scratch1, scratch2, ip));
1967 1967
1968 // Make object size into bytes. 1968 // Make object size into bytes.
1969 if ((flags & SIZE_IN_WORDS) != 0) { 1969 if ((flags & SIZE_IN_WORDS) != 0) {
1970 object_size *= kPointerSize; 1970 object_size *= kPointerSize;
1971 } 1971 }
1972 DCHECK_EQ(0, object_size & kObjectAlignmentMask); 1972 DCHECK_EQ(0, object_size & kObjectAlignmentMask);
1973 1973
1974 ExternalReference allocation_top = 1974 ExternalReference allocation_top =
1975 AllocationUtils::GetAllocationTopReference(isolate(), flags); 1975 AllocationUtils::GetAllocationTopReference(isolate(), flags);
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5533 } 5533 }
5534 if (mag.shift > 0) ShiftRightArith(result, result, Operand(mag.shift)); 5534 if (mag.shift > 0) ShiftRightArith(result, result, Operand(mag.shift));
5535 ExtractBit(r0, dividend, 31); 5535 ExtractBit(r0, dividend, 31);
5536 AddP(result, r0); 5536 AddP(result, r0);
5537 } 5537 }
5538 5538
5539 } // namespace internal 5539 } // namespace internal
5540 } // namespace v8 5540 } // namespace v8
5541 5541
5542 #endif // V8_TARGET_ARCH_S390 5542 #endif // V8_TARGET_ARCH_S390
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