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Side by Side Diff: src/ppc/constants-ppc.h

Issue 1162993006: Add support for Embedded Constant Pools for PPC and Arm (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 6 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 #ifndef V8_PPC_CONSTANTS_PPC_H_ 5 #ifndef V8_PPC_CONSTANTS_PPC_H_
6 #define V8_PPC_CONSTANTS_PPC_H_ 6 #define V8_PPC_CONSTANTS_PPC_H_
7 7
8 namespace v8 { 8 namespace v8 {
9 namespace internal { 9 namespace internal {
10 10
11 // Number of registers 11 // Number of registers
12 const int kNumRegisters = 32; 12 const int kNumRegisters = 32;
13 13
14 // FP support. 14 // FP support.
15 const int kNumFPDoubleRegisters = 32; 15 const int kNumFPDoubleRegisters = 32;
16 const int kNumFPRegisters = kNumFPDoubleRegisters; 16 const int kNumFPRegisters = kNumFPDoubleRegisters;
17 17
18 const int kNoRegister = -1; 18 const int kNoRegister = -1;
19 19
20 // Used in embedded constant pool builder - max reach in bits for
21 // various load instructions (one less due to unsigned)
22 const int kLoadPtrMaxReachBits = 15;
23 const int kLoadDoubleMaxReachBits = 15;
24
20 // sign-extend the least significant 16-bits of value <imm> 25 // sign-extend the least significant 16-bits of value <imm>
21 #define SIGN_EXT_IMM16(imm) ((static_cast<int>(imm) << 16) >> 16) 26 #define SIGN_EXT_IMM16(imm) ((static_cast<int>(imm) << 16) >> 16)
22 27
23 // sign-extend the least significant 26-bits of value <imm> 28 // sign-extend the least significant 26-bits of value <imm>
24 #define SIGN_EXT_IMM26(imm) ((static_cast<int>(imm) << 6) >> 6) 29 #define SIGN_EXT_IMM26(imm) ((static_cast<int>(imm) << 6) >> 6)
25 30
26 // ----------------------------------------------------------------------------- 31 // -----------------------------------------------------------------------------
27 // Conditions. 32 // Conditions.
28 33
29 // Defines constants and accessor classes to assemble, disassemble and 34 // Defines constants and accessor classes to assemble, disassemble and
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577 // Lookup the register number for the name provided. 582 // Lookup the register number for the name provided.
578 static int Number(const char* name); 583 static int Number(const char* name);
579 584
580 private: 585 private:
581 static const char* names_[kNumFPRegisters]; 586 static const char* names_[kNumFPRegisters];
582 }; 587 };
583 } 588 }
584 } // namespace v8::internal 589 } // namespace v8::internal
585 590
586 #endif // V8_PPC_CONSTANTS_PPC_H_ 591 #endif // V8_PPC_CONSTANTS_PPC_H_
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