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Issue 456333002: Move MachineRepresentation to machine-type.h and rename to MachineType in preparation for merging i… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 4 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_COMPILER_LINKAGE_H_ 5 #ifndef V8_COMPILER_LINKAGE_H_
6 #define V8_COMPILER_LINKAGE_H_ 6 #define V8_COMPILER_LINKAGE_H_
7 7
8 #include "src/v8.h" 8 #include "src/v8.h"
9 9
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
11 #include "src/compiler/frame.h" 11 #include "src/compiler/frame.h"
12 #include "src/compiler/machine-operator.h" 12 #include "src/compiler/machine-operator.h"
13 #include "src/compiler/node.h" 13 #include "src/compiler/node.h"
14 #include "src/compiler/operator.h" 14 #include "src/compiler/operator.h"
15 #include "src/zone.h" 15 #include "src/zone.h"
16 16
17 namespace v8 { 17 namespace v8 {
18 namespace internal { 18 namespace internal {
19 namespace compiler { 19 namespace compiler {
20 20
21 // Describes the location for a parameter or a return value to a call. 21 // Describes the location for a parameter or a return value to a call.
22 // TODO(titzer): replace with Radium locations when they are ready. 22 // TODO(titzer): replace with Radium locations when they are ready.
23 class LinkageLocation { 23 class LinkageLocation {
24 public: 24 public:
25 LinkageLocation(MachineRepresentation rep, int location) 25 LinkageLocation(MachineType rep, int location)
26 : rep_(rep), location_(location) {} 26 : rep_(rep), location_(location) {}
27 27
28 inline MachineRepresentation representation() const { return rep_; } 28 inline MachineType representation() const { return rep_; }
29 29
30 static const int16_t ANY_REGISTER = 32767; 30 static const int16_t ANY_REGISTER = 32767;
31 31
32 private: 32 private:
33 friend class CallDescriptor; 33 friend class CallDescriptor;
34 friend class OperandGenerator; 34 friend class OperandGenerator;
35 MachineRepresentation rep_; 35 MachineType rep_;
36 int16_t location_; // >= 0 implies register, otherwise stack slot. 36 int16_t location_; // >= 0 implies register, otherwise stack slot.
37 }; 37 };
38 38
39 39
40 class CallDescriptor : public ZoneObject { 40 class CallDescriptor : public ZoneObject {
41 public: 41 public:
42 // Describes whether the first parameter is a code object, a JSFunction, 42 // Describes whether the first parameter is a code object, a JSFunction,
43 // or an address--all of which require different machine sequences to call. 43 // or an address--all of which require different machine sequences to call.
44 enum Kind { kCallCodeObject, kCallJSFunction, kCallAddress }; 44 enum Kind { kCallCodeObject, kCallJSFunction, kCallAddress };
45 45
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153 CallDescriptor::kCannotDeoptimize); 153 CallDescriptor::kCannotDeoptimize);
154 static CallDescriptor* GetStubCallDescriptor( 154 static CallDescriptor* GetStubCallDescriptor(
155 CodeStubInterfaceDescriptor* descriptor, int stack_parameter_count, 155 CodeStubInterfaceDescriptor* descriptor, int stack_parameter_count,
156 CallDescriptor::DeoptimizationSupport can_deoptimize, Zone* zone); 156 CallDescriptor::DeoptimizationSupport can_deoptimize, Zone* zone);
157 157
158 // Creates a call descriptor for simplified C calls that is appropriate 158 // Creates a call descriptor for simplified C calls that is appropriate
159 // for the host platform. This simplified calling convention only supports 159 // for the host platform. This simplified calling convention only supports
160 // integers and pointers of one word size each, i.e. no floating point, 160 // integers and pointers of one word size each, i.e. no floating point,
161 // structs, pointers to members, etc. 161 // structs, pointers to members, etc.
162 static CallDescriptor* GetSimplifiedCDescriptor( 162 static CallDescriptor* GetSimplifiedCDescriptor(
163 Zone* zone, int num_params, MachineRepresentation return_type, 163 Zone* zone, int num_params, MachineType return_type,
164 const MachineRepresentation* param_types); 164 const MachineType* param_types);
165 165
166 // Get the location of an (incoming) parameter to this function. 166 // Get the location of an (incoming) parameter to this function.
167 LinkageLocation GetParameterLocation(int index) { 167 LinkageLocation GetParameterLocation(int index) {
168 return incoming_->GetInputLocation(index + 1); 168 return incoming_->GetInputLocation(index + 1);
169 } 169 }
170 170
171 // Get the location where this function should place its return value. 171 // Get the location where this function should place its return value.
172 LinkageLocation GetReturnLocation() { 172 LinkageLocation GetReturnLocation() {
173 return incoming_->GetReturnLocation(0); 173 return incoming_->GetReturnLocation(0);
174 } 174 }
175 175
176 // Get the frame offset for a given spill slot. The location depends on the 176 // Get the frame offset for a given spill slot. The location depends on the
177 // calling convention and the specific frame layout, and may thus be 177 // calling convention and the specific frame layout, and may thus be
178 // architecture-specific. Negative spill slots indicate arguments on the 178 // architecture-specific. Negative spill slots indicate arguments on the
179 // caller's frame. The {extra} parameter indicates an additional offset from 179 // caller's frame. The {extra} parameter indicates an additional offset from
180 // the frame offset, e.g. to index into part of a double slot. 180 // the frame offset, e.g. to index into part of a double slot.
181 FrameOffset GetFrameOffset(int spill_slot, Frame* frame, int extra = 0); 181 FrameOffset GetFrameOffset(int spill_slot, Frame* frame, int extra = 0);
182 182
183 CompilationInfo* info() const { return info_; } 183 CompilationInfo* info() const { return info_; }
184 184
185 private: 185 private:
186 CompilationInfo* info_; 186 CompilationInfo* info_;
187 CallDescriptor* incoming_; 187 CallDescriptor* incoming_;
188 }; 188 };
189 } 189 }
190 } 190 }
191 } // namespace v8::internal::compiler 191 } // namespace v8::internal::compiler
192 192
193 #endif // V8_COMPILER_LINKAGE_H_ 193 #endif // V8_COMPILER_LINKAGE_H_
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