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Issue 2425183002: X87: [builtins] Remove the unused AllocationSite slot from ConstructFrame. (Closed)
Patch Set: Created 4 years, 2 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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 #if V8_TARGET_ARCH_X87 5 #if V8_TARGET_ARCH_X87
6 6
7 #include "src/code-factory.h" 7 #include "src/code-factory.h"
8 #include "src/codegen.h" 8 #include "src/codegen.h"
9 #include "src/deoptimizer.h" 9 #include "src/deoptimizer.h"
10 #include "src/full-codegen/full-codegen.h" 10 #include "src/full-codegen/full-codegen.h"
(...skipping 92 matching lines...) Expand 10 before | Expand all | Expand 10 after
103 ExternalReference::address_of_stack_limit(masm->isolate()); 103 ExternalReference::address_of_stack_limit(masm->isolate());
104 __ cmp(esp, Operand::StaticVariable(stack_limit)); 104 __ cmp(esp, Operand::StaticVariable(stack_limit));
105 __ j(above_equal, &ok, Label::kNear); 105 __ j(above_equal, &ok, Label::kNear);
106 106
107 GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode); 107 GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode);
108 108
109 __ bind(&ok); 109 __ bind(&ok);
110 GenerateTailCallToSharedCode(masm); 110 GenerateTailCallToSharedCode(masm);
111 } 111 }
112 112
113 static void Generate_JSConstructStubHelper(MacroAssembler* masm, 113 namespace {
114 bool is_api_function, 114
115 bool create_implicit_receiver, 115 void Generate_JSConstructStubHelper(MacroAssembler* masm, bool is_api_function,
116 bool check_derived_construct) { 116 bool create_implicit_receiver,
117 bool check_derived_construct) {
117 // ----------- S t a t e ------------- 118 // ----------- S t a t e -------------
118 // -- eax: number of arguments 119 // -- eax: number of arguments
119 // -- esi: context 120 // -- esi: context
120 // -- edi: constructor function 121 // -- edi: constructor function
121 // -- ebx: allocation site or undefined
122 // -- edx: new target 122 // -- edx: new target
123 // ----------------------------------- 123 // -----------------------------------
124 124
125 // Enter a construct frame. 125 // Enter a construct frame.
126 { 126 {
127 FrameScope scope(masm, StackFrame::CONSTRUCT); 127 FrameScope scope(masm, StackFrame::CONSTRUCT);
128 128
129 // Preserve the incoming parameters on the stack. 129 // Preserve the incoming parameters on the stack.
130 __ AssertUndefinedOrAllocationSite(ebx); 130 __ SmiTag(eax);
131 __ push(esi); 131 __ push(esi);
132 __ push(ebx);
133 __ SmiTag(eax);
134 __ push(eax); 132 __ push(eax);
135 133
136 if (create_implicit_receiver) { 134 if (create_implicit_receiver) {
137 // Allocate the new receiver object. 135 // Allocate the new receiver object.
138 __ Push(edi); 136 __ Push(edi);
139 __ Push(edx); 137 __ Push(edx);
140 FastNewObjectStub stub(masm->isolate()); 138 FastNewObjectStub stub(masm->isolate());
141 __ CallStub(&stub); 139 __ CallStub(&stub);
142 __ mov(ebx, eax); 140 __ mov(ebx, eax);
143 __ Pop(edx); 141 __ Pop(edx);
(...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after
191 // Restore context from the frame. 189 // Restore context from the frame.
192 __ mov(esi, Operand(ebp, ConstructFrameConstants::kContextOffset)); 190 __ mov(esi, Operand(ebp, ConstructFrameConstants::kContextOffset));
193 191
194 if (create_implicit_receiver) { 192 if (create_implicit_receiver) {
195 // If the result is an object (in the ECMA sense), we should get rid 193 // If the result is an object (in the ECMA sense), we should get rid
196 // of the receiver and use the result; see ECMA-262 section 13.2.2-7 194 // of the receiver and use the result; see ECMA-262 section 13.2.2-7
197 // on page 74. 195 // on page 74.
198 Label use_receiver, exit; 196 Label use_receiver, exit;
199 197
200 // If the result is a smi, it is *not* an object in the ECMA sense. 198 // If the result is a smi, it is *not* an object in the ECMA sense.
201 __ JumpIfSmi(eax, &use_receiver); 199 __ JumpIfSmi(eax, &use_receiver, Label::kNear);
202 200
203 // If the type of the result (stored in its map) is less than 201 // If the type of the result (stored in its map) is less than
204 // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. 202 // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense.
205 __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx); 203 __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx);
206 __ j(above_equal, &exit); 204 __ j(above_equal, &exit, Label::kNear);
207 205
208 // Throw away the result of the constructor invocation and use the 206 // Throw away the result of the constructor invocation and use the
209 // on-stack receiver as the result. 207 // on-stack receiver as the result.
210 __ bind(&use_receiver); 208 __ bind(&use_receiver);
211 __ mov(eax, Operand(esp, 0)); 209 __ mov(eax, Operand(esp, 0));
212 210
213 // Restore the arguments count and leave the construct frame. The 211 // Restore the arguments count and leave the construct frame. The
214 // arguments count is stored below the receiver. 212 // arguments count is stored below the receiver.
215 __ bind(&exit); 213 __ bind(&exit);
216 __ mov(ebx, Operand(esp, 1 * kPointerSize)); 214 __ mov(ebx, Operand(esp, 1 * kPointerSize));
(...skipping 21 matching lines...) Expand all
238 STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); 236 STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0);
239 __ pop(ecx); 237 __ pop(ecx);
240 __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver 238 __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize)); // 1 ~ receiver
241 __ push(ecx); 239 __ push(ecx);
242 if (create_implicit_receiver) { 240 if (create_implicit_receiver) {
243 __ IncrementCounter(masm->isolate()->counters()->constructed_objects(), 1); 241 __ IncrementCounter(masm->isolate()->counters()->constructed_objects(), 1);
244 } 242 }
245 __ ret(0); 243 __ ret(0);
246 } 244 }
247 245
246 } // namespace
247
248 void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) { 248 void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) {
249 Generate_JSConstructStubHelper(masm, false, true, false); 249 Generate_JSConstructStubHelper(masm, false, true, false);
250 } 250 }
251 251
252 void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) { 252 void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) {
253 Generate_JSConstructStubHelper(masm, true, false, false); 253 Generate_JSConstructStubHelper(masm, true, false, false);
254 } 254 }
255 255
256 void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) { 256 void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) {
257 Generate_JSConstructStubHelper(masm, false, false, false); 257 Generate_JSConstructStubHelper(masm, false, false, false);
(...skipping 2892 matching lines...) Expand 10 before | Expand all | Expand 10 after
3150 3150
3151 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) { 3151 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
3152 Generate_OnStackReplacementHelper(masm, true); 3152 Generate_OnStackReplacementHelper(masm, true);
3153 } 3153 }
3154 3154
3155 #undef __ 3155 #undef __
3156 } // namespace internal 3156 } // namespace internal
3157 } // namespace v8 3157 } // namespace v8
3158 3158
3159 #endif // V8_TARGET_ARCH_X87 3159 #endif // V8_TARGET_ARCH_X87
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