Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(496)

Side by Side Diff: src/register-configuration.h

Issue 1365073002: Revert of Remove register index/code indirection (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « src/objects.cc ('k') | src/register-configuration.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
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
3 // found in the LICENSE file.
4
5 #ifndef V8_COMPILER_REGISTER_CONFIGURATION_H_
6 #define V8_COMPILER_REGISTER_CONFIGURATION_H_
7
8 #include "src/base/macros.h"
9
10 namespace v8 {
11 namespace internal {
12
13 // An architecture independent representation of the sets of registers available
14 // for instruction creation.
15 class RegisterConfiguration {
16 public:
17 // Architecture independent maxes.
18 static const int kMaxGeneralRegisters = 32;
19 static const int kMaxDoubleRegisters = 32;
20
21 static const RegisterConfiguration* ArchDefault();
22
23 RegisterConfiguration(int num_general_registers, int num_double_registers,
24 int num_allocatable_general_registers,
25 int num_allocatable_double_registers,
26 int num_allocatable_aliased_double_registers,
27 const int* allocatable_general_codes,
28 const int* allocatable_double_codes,
29 char const* const* general_names,
30 char const* const* double_names);
31
32 int num_general_registers() const { return num_general_registers_; }
33 int num_double_registers() const { return num_double_registers_; }
34 int num_allocatable_general_registers() const {
35 return num_allocatable_general_registers_;
36 }
37 int num_allocatable_double_registers() const {
38 return num_allocatable_double_registers_;
39 }
40 // TODO(turbofan): This is a temporary work-around required because our
41 // register allocator does not yet support the aliasing of single/double
42 // registers on ARM.
43 int num_allocatable_aliased_double_registers() const {
44 return num_allocatable_aliased_double_registers_;
45 }
46 int32_t allocatable_general_codes_mask() const {
47 return allocatable_general_codes_mask_;
48 }
49 int32_t allocatable_double_codes_mask() const {
50 return allocatable_double_codes_mask_;
51 }
52 int GetAllocatableGeneralCode(int index) const {
53 return allocatable_general_codes_[index];
54 }
55 int GetAllocatableDoubleCode(int index) const {
56 return allocatable_double_codes_[index];
57 }
58 const char* GetGeneralRegisterName(int code) const {
59 return general_register_names_[code];
60 }
61 const char* GetDoubleRegisterName(int code) const {
62 return double_register_names_[code];
63 }
64 const int* allocatable_general_codes() const {
65 return allocatable_general_codes_;
66 }
67 const int* allocatable_double_codes() const {
68 return allocatable_double_codes_;
69 }
70
71 private:
72 const int num_general_registers_;
73 const int num_double_registers_;
74 int num_allocatable_general_registers_;
75 int num_allocatable_double_registers_;
76 int num_allocatable_aliased_double_registers_;
77 int32_t allocatable_general_codes_mask_;
78 int32_t allocatable_double_codes_mask_;
79 const int* allocatable_general_codes_;
80 const int* allocatable_double_codes_;
81 char const* const* general_register_names_;
82 char const* const* double_register_names_;
83 };
84
85 } // namespace internal
86 } // namespace v8
87
88 #endif // V8_COMPILER_REGISTER_CONFIGURATION_H_
OLDNEW
« no previous file with comments | « src/objects.cc ('k') | src/register-configuration.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698