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Issue 7860035: Merge bleeding edge up to 9192 into the GC branch. (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/gc
Patch Set: Created 9 years, 3 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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251 Register receiver, 251 Register receiver,
252 Register scratch, 252 Register scratch,
253 Label* smi, 253 Label* smi,
254 Label* non_string_object) { 254 Label* non_string_object) {
255 // Check that the object isn't a smi. 255 // Check that the object isn't a smi.
256 __ JumpIfSmi(receiver, smi); 256 __ JumpIfSmi(receiver, smi);
257 257
258 // Check that the object is a string. 258 // Check that the object is a string.
259 __ movq(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); 259 __ movq(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
260 __ movzxbq(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); 260 __ movzxbq(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
261 ASSERT(kNotStringTag != 0); 261 STATIC_ASSERT(kNotStringTag != 0);
262 __ testl(scratch, Immediate(kNotStringTag)); 262 __ testl(scratch, Immediate(kNotStringTag));
263 __ j(not_zero, non_string_object); 263 __ j(not_zero, non_string_object);
264 } 264 }
265 265
266 266
267 void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, 267 void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm,
268 Register receiver, 268 Register receiver,
269 Register scratch1, 269 Register scratch1,
270 Register scratch2, 270 Register scratch2,
271 Label* miss, 271 Label* miss,
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3086 // code for the function thereby hitting the break points. 3086 // code for the function thereby hitting the break points.
3087 __ movq(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); 3087 __ movq(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
3088 __ movq(rbx, FieldOperand(rbx, SharedFunctionInfo::kDebugInfoOffset)); 3088 __ movq(rbx, FieldOperand(rbx, SharedFunctionInfo::kDebugInfoOffset));
3089 __ cmpq(rbx, r8); 3089 __ cmpq(rbx, r8);
3090 __ j(not_equal, &generic_stub_call); 3090 __ j(not_equal, &generic_stub_call);
3091 #endif 3091 #endif
3092 3092
3093 // Load the initial map and verify that it is in fact a map. 3093 // Load the initial map and verify that it is in fact a map.
3094 __ movq(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset)); 3094 __ movq(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset));
3095 // Will both indicate a NULL and a Smi. 3095 // Will both indicate a NULL and a Smi.
3096 ASSERT(kSmiTag == 0); 3096 STATIC_ASSERT(kSmiTag == 0);
3097 __ JumpIfSmi(rbx, &generic_stub_call); 3097 __ JumpIfSmi(rbx, &generic_stub_call);
3098 __ CmpObjectType(rbx, MAP_TYPE, rcx); 3098 __ CmpObjectType(rbx, MAP_TYPE, rcx);
3099 __ j(not_equal, &generic_stub_call); 3099 __ j(not_equal, &generic_stub_call);
3100 3100
3101 #ifdef DEBUG 3101 #ifdef DEBUG
3102 // Cannot construct functions this way. 3102 // Cannot construct functions this way.
3103 // rdi: constructor 3103 // rdi: constructor
3104 // rbx: initial map 3104 // rbx: initial map
3105 __ CmpInstanceType(rbx, JS_FUNCTION_TYPE); 3105 __ CmpInstanceType(rbx, JS_FUNCTION_TYPE);
3106 __ Assert(not_equal, "Function constructed by construct stub."); 3106 __ Assert(not_equal, "Function constructed by construct stub.");
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3791 masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); 3791 masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric();
3792 __ jmp(ic_force_generic, RelocInfo::CODE_TARGET); 3792 __ jmp(ic_force_generic, RelocInfo::CODE_TARGET);
3793 } 3793 }
3794 3794
3795 3795
3796 #undef __ 3796 #undef __
3797 3797
3798 } } // namespace v8::internal 3798 } } // namespace v8::internal
3799 3799
3800 #endif // V8_TARGET_ARCH_X64 3800 #endif // V8_TARGET_ARCH_X64
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