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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/base/flags.h" | 8 #include "src/base/flags.h" |
9 #include "src/compiler/frame.h" | 9 #include "src/compiler/frame.h" |
10 #include "src/compiler/machine-type.h" | 10 #include "src/compiler/machine-type.h" |
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95 callee_saved_registers_(callee_saved_registers), | 95 callee_saved_registers_(callee_saved_registers), |
96 flags_(flags), | 96 flags_(flags), |
97 debug_name_(debug_name) { | 97 debug_name_(debug_name) { |
98 DCHECK(machine_sig->return_count() == location_sig->return_count()); | 98 DCHECK(machine_sig->return_count() == location_sig->return_count()); |
99 DCHECK(machine_sig->parameter_count() == location_sig->parameter_count()); | 99 DCHECK(machine_sig->parameter_count() == location_sig->parameter_count()); |
100 } | 100 } |
101 | 101 |
102 // Returns the kind of this call. | 102 // Returns the kind of this call. |
103 Kind kind() const { return kind_; } | 103 Kind kind() const { return kind_; } |
104 | 104 |
| 105 // Returns {true} if this descriptor is a call to a C function. |
| 106 bool IsCFunctionCall() const { return kind_ == kCallAddress; } |
| 107 |
105 // Returns {true} if this descriptor is a call to a JSFunction. | 108 // Returns {true} if this descriptor is a call to a JSFunction. |
106 bool IsJSFunctionCall() const { return kind_ == kCallJSFunction; } | 109 bool IsJSFunctionCall() const { return kind_ == kCallJSFunction; } |
107 | 110 |
108 // The number of return values from this call. | 111 // The number of return values from this call. |
109 size_t ReturnCount() const { return machine_sig_->return_count(); } | 112 size_t ReturnCount() const { return machine_sig_->return_count(); } |
110 | 113 |
| 114 // The number of C parameters to this call. |
| 115 size_t CParameterCount() const { return machine_sig_->parameter_count(); } |
| 116 |
111 // The number of JavaScript parameters to this call, including the receiver | 117 // The number of JavaScript parameters to this call, including the receiver |
112 // object. | 118 // object. |
113 size_t JSParameterCount() const { return js_param_count_; } | 119 size_t JSParameterCount() const { return js_param_count_; } |
114 | 120 |
115 // The total number of inputs to this call, which includes the target, | 121 // The total number of inputs to this call, which includes the target, |
116 // receiver, context, etc. | 122 // receiver, context, etc. |
117 // TODO(titzer): this should input the framestate input too. | 123 // TODO(titzer): this should input the framestate input too. |
118 size_t InputCount() const { return 1 + machine_sig_->parameter_count(); } | 124 size_t InputCount() const { return 1 + machine_sig_->parameter_count(); } |
119 | 125 |
120 size_t FrameStateCount() const { return NeedsFrameState() ? 1 : 0; } | 126 size_t FrameStateCount() const { return NeedsFrameState() ? 1 : 0; } |
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257 CallDescriptor* const incoming_; | 263 CallDescriptor* const incoming_; |
258 | 264 |
259 DISALLOW_COPY_AND_ASSIGN(Linkage); | 265 DISALLOW_COPY_AND_ASSIGN(Linkage); |
260 }; | 266 }; |
261 | 267 |
262 } // namespace compiler | 268 } // namespace compiler |
263 } // namespace internal | 269 } // namespace internal |
264 } // namespace v8 | 270 } // namespace v8 |
265 | 271 |
266 #endif // V8_COMPILER_LINKAGE_H_ | 272 #endif // V8_COMPILER_LINKAGE_H_ |
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