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Side by Side Diff: src/globals.h

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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116 116
117 const int kCharSize = sizeof(char); // NOLINT 117 const int kCharSize = sizeof(char); // NOLINT
118 const int kShortSize = sizeof(short); // NOLINT 118 const int kShortSize = sizeof(short); // NOLINT
119 const int kIntSize = sizeof(int); // NOLINT 119 const int kIntSize = sizeof(int); // NOLINT
120 const int kInt32Size = sizeof(int32_t); // NOLINT 120 const int kInt32Size = sizeof(int32_t); // NOLINT
121 const int kInt64Size = sizeof(int64_t); // NOLINT 121 const int kInt64Size = sizeof(int64_t); // NOLINT
122 const int kFloatSize = sizeof(float); // NOLINT 122 const int kFloatSize = sizeof(float); // NOLINT
123 const int kDoubleSize = sizeof(double); // NOLINT 123 const int kDoubleSize = sizeof(double); // NOLINT
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_ARM64
127 const int kFrameAlignmentInBytes = 2 * kPointerSize;
128 #else
129 const int kFrameAlignmentInBytes = kPointerSize;
130 #endif
126 #if V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_32_BIT 131 #if V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_32_BIT
127 const int kRegisterSize = kPointerSize + kPointerSize; 132 const int kRegisterSize = kPointerSize + kPointerSize;
128 #else 133 #else
129 const int kRegisterSize = kPointerSize; 134 const int kRegisterSize = kPointerSize;
130 #endif 135 #endif
131 const int kPCOnStackSize = kRegisterSize; 136 const int kPCOnStackSize = kRegisterSize;
132 const int kFPOnStackSize = kRegisterSize; 137 const int kFPOnStackSize = kRegisterSize;
133 138
139 #if V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_IA32
140 const int kElidedFrameSlots = kPCOnStackSize / kPointerSize;
141 #else
142 const int kElidedFrameSlots = 0;
143 #endif
144
134 const int kDoubleSizeLog2 = 3; 145 const int kDoubleSizeLog2 = 3;
135 146
136 #if V8_HOST_ARCH_64_BIT 147 #if V8_HOST_ARCH_64_BIT
137 const int kPointerSizeLog2 = 3; 148 const int kPointerSizeLog2 = 3;
138 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000); 149 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000);
139 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF); 150 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF);
140 const bool kRequiresCodeRange = true; 151 const bool kRequiresCodeRange = true;
141 #if V8_TARGET_ARCH_MIPS64 152 #if V8_TARGET_ARCH_MIPS64
142 // To use pseudo-relative jumps such as j/jal instructions which have 28-bit 153 // 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 154 // encoded immediate, the addresses have to be in range of 256MB aligned
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1028 return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >> 1039 return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >>
1029 kPointerSizeLog2); 1040 kPointerSizeLog2);
1030 } 1041 }
1031 1042
1032 } // namespace internal 1043 } // namespace internal
1033 } // namespace v8 1044 } // namespace v8
1034 1045
1035 namespace i = v8::internal; 1046 namespace i = v8::internal;
1036 1047
1037 #endif // V8_GLOBALS_H_ 1048 #endif // V8_GLOBALS_H_
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