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Issue 1775323002: [turbofan] Frame elision for code stubs (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 9 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 #ifndef V8_GLOBALS_H_ 5 #ifndef V8_GLOBALS_H_
6 #define V8_GLOBALS_H_ 6 #define V8_GLOBALS_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <stdint.h> 9 #include <stdint.h>
10 10
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124 const int kIntptrSize = sizeof(intptr_t); // NOLINT 124 const int kIntptrSize = sizeof(intptr_t); // NOLINT
125 const int kPointerSize = sizeof(void*); // NOLINT 125 const int kPointerSize = sizeof(void*); // NOLINT
126 #if V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_32_BIT 126 #if V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_32_BIT
127 const int kRegisterSize = kPointerSize + kPointerSize; 127 const int kRegisterSize = kPointerSize + kPointerSize;
128 #else 128 #else
129 const int kRegisterSize = kPointerSize; 129 const int kRegisterSize = kPointerSize;
130 #endif 130 #endif
131 const int kPCOnStackSize = kRegisterSize; 131 const int kPCOnStackSize = kRegisterSize;
132 const int kFPOnStackSize = kRegisterSize; 132 const int kFPOnStackSize = kRegisterSize;
133 133
134 #if V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_IA32
135 const int kElidedFrameSlots = kPCOnStackSize / kPointerSize;
136 #else
137 const int kElidedFrameSlots = 0;
138 #endif
139
134 const int kDoubleSizeLog2 = 3; 140 const int kDoubleSizeLog2 = 3;
135 141
136 #if V8_HOST_ARCH_64_BIT 142 #if V8_HOST_ARCH_64_BIT
137 const int kPointerSizeLog2 = 3; 143 const int kPointerSizeLog2 = 3;
138 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000); 144 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000);
139 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF); 145 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF);
140 const bool kRequiresCodeRange = true; 146 const bool kRequiresCodeRange = true;
141 #if V8_TARGET_ARCH_MIPS64 147 #if V8_TARGET_ARCH_MIPS64
142 // To use pseudo-relative jumps such as j/jal instructions which have 28-bit 148 // To use pseudo-relative jumps such as j/jal instructions which have 28-bit
143 // encoded immediate, the addresses have to be in range of 256MB aligned 149 // encoded immediate, the addresses have to be in range of 256MB aligned
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1026 return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >> 1032 return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >>
1027 kPointerSizeLog2); 1033 kPointerSizeLog2);
1028 } 1034 }
1029 1035
1030 } // namespace internal 1036 } // namespace internal
1031 } // namespace v8 1037 } // namespace v8
1032 1038
1033 namespace i = v8::internal; 1039 namespace i = v8::internal;
1034 1040
1035 #endif // V8_GLOBALS_H_ 1041 #endif // V8_GLOBALS_H_
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