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Issue 696223002: Now with more checkings! Skip the CallFunctionStub when the callee function can be statically deter… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 1 month 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 #include "src/code-stubs.h" 5 #include "src/code-stubs.h"
6 #include "src/compiler.h" 6 #include "src/compiler.h"
7 #include "src/compiler/linkage.h" 7 #include "src/compiler/linkage.h"
8 #include "src/compiler/node.h" 8 #include "src/compiler/node.h"
9 #include "src/compiler/pipeline.h" 9 #include "src/compiler/pipeline.h"
10 #include "src/scopes.h" 10 #include "src/scopes.h"
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35 return os << d.kind() << ":" << d.debug_name() << ":r" << d.ReturnCount() 35 return os << d.kind() << ":" << d.debug_name() << ":r" << d.ReturnCount()
36 << "j" << d.JSParameterCount() << "i" << d.InputCount() << "f" 36 << "j" << d.JSParameterCount() << "i" << d.InputCount() << "f"
37 << d.FrameStateCount(); 37 << d.FrameStateCount();
38 } 38 }
39 39
40 40
41 CallDescriptor* Linkage::ComputeIncoming(Zone* zone, CompilationInfo* info) { 41 CallDescriptor* Linkage::ComputeIncoming(Zone* zone, CompilationInfo* info) {
42 if (info->function() != NULL) { 42 if (info->function() != NULL) {
43 // If we already have the function literal, use the number of parameters 43 // If we already have the function literal, use the number of parameters
44 // plus the receiver. 44 // plus the receiver.
45 return GetJSCallDescriptor(1 + info->function()->parameter_count(), zone); 45 return GetJSCallDescriptor(1 + info->function()->parameter_count(), zone,
46 CallDescriptor::kNoFlags);
46 } 47 }
47 if (!info->closure().is_null()) { 48 if (!info->closure().is_null()) {
48 // If we are compiling a JS function, use a JS call descriptor, 49 // If we are compiling a JS function, use a JS call descriptor,
49 // plus the receiver. 50 // plus the receiver.
50 SharedFunctionInfo* shared = info->closure()->shared(); 51 SharedFunctionInfo* shared = info->closure()->shared();
51 return GetJSCallDescriptor(1 + shared->formal_parameter_count(), zone); 52 return GetJSCallDescriptor(1 + shared->formal_parameter_count(), zone,
53 CallDescriptor::kNoFlags);
52 } 54 }
53 if (info->code_stub() != NULL) { 55 if (info->code_stub() != NULL) {
54 // Use the code stub interface descriptor. 56 // Use the code stub interface descriptor.
55 CallInterfaceDescriptor descriptor = 57 CallInterfaceDescriptor descriptor =
56 info->code_stub()->GetCallInterfaceDescriptor(); 58 info->code_stub()->GetCallInterfaceDescriptor();
57 return GetStubCallDescriptor(descriptor, 0, CallDescriptor::kNoFlags, zone); 59 return GetStubCallDescriptor(descriptor, 0, CallDescriptor::kNoFlags, zone);
58 } 60 }
59 return NULL; // TODO(titzer): ? 61 return NULL; // TODO(titzer): ?
60 } 62 }
61 63
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81 // No frame. Retrieve all parameters relative to stack pointer. 83 // No frame. Retrieve all parameters relative to stack pointer.
82 DCHECK(spill_slot < 0); // Must be a parameter. 84 DCHECK(spill_slot < 0); // Must be a parameter.
83 int register_save_area_size = frame->GetRegisterSaveAreaSize(); 85 int register_save_area_size = frame->GetRegisterSaveAreaSize();
84 int offset = register_save_area_size - (spill_slot + 1) * kPointerSize + 86 int offset = register_save_area_size - (spill_slot + 1) * kPointerSize +
85 kPCOnStackSize + extra; 87 kPCOnStackSize + extra;
86 return FrameOffset::FromStackPointer(offset); 88 return FrameOffset::FromStackPointer(offset);
87 } 89 }
88 } 90 }
89 91
90 92
91 CallDescriptor* Linkage::GetJSCallDescriptor(int parameter_count) const { 93 CallDescriptor* Linkage::GetJSCallDescriptor(
92 return GetJSCallDescriptor(parameter_count, zone_); 94 int parameter_count, CallDescriptor::Flags flags) const {
95 return GetJSCallDescriptor(parameter_count, zone_, flags);
93 } 96 }
94 97
95 98
96 CallDescriptor* Linkage::GetRuntimeCallDescriptor( 99 CallDescriptor* Linkage::GetRuntimeCallDescriptor(
97 Runtime::FunctionId function, int parameter_count, 100 Runtime::FunctionId function, int parameter_count,
98 Operator::Properties properties) const { 101 Operator::Properties properties) const {
99 return GetRuntimeCallDescriptor(function, parameter_count, properties, zone_); 102 return GetRuntimeCallDescriptor(function, parameter_count, properties, zone_);
100 } 103 }
101 104
102 105
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241 244
242 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone, 245 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
243 MachineSignature* sig) { 246 MachineSignature* sig) {
244 UNIMPLEMENTED(); 247 UNIMPLEMENTED();
245 return NULL; 248 return NULL;
246 } 249 }
247 #endif // !V8_TURBOFAN_BACKEND 250 #endif // !V8_TURBOFAN_BACKEND
248 } 251 }
249 } 252 }
250 } // namespace v8::internal::compiler 253 } // namespace v8::internal::compiler
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