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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 // 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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| 3204 #define __ ACCESS_MASM(masm) | 3204 #define __ ACCESS_MASM(masm) |
| 3205 | 3205 |
| 3206 | 3206 |
| 3207 void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( | 3207 void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( |
| 3208 MacroAssembler* masm) { | 3208 MacroAssembler* masm) { |
| 3209 // ----------- S t a t e ------------- | 3209 // ----------- S t a t e ------------- |
| 3210 // -- ecx : key | 3210 // -- ecx : key |
| 3211 // -- edx : receiver | 3211 // -- edx : receiver |
| 3212 // -- esp[0] : return address | 3212 // -- esp[0] : return address |
| 3213 // ----------------------------------- | 3213 // ----------------------------------- |
| 3214 Label slow, miss_force_generic; | 3214 Label slow, miss; |
| 3215 | 3215 |
| 3216 // This stub is meant to be tail-jumped to, the receiver must already | 3216 // This stub is meant to be tail-jumped to, the receiver must already |
| 3217 // have been verified by the caller to not be a smi. | 3217 // have been verified by the caller to not be a smi. |
| 3218 __ JumpIfNotSmi(ecx, &miss_force_generic); | 3218 __ JumpIfNotSmi(ecx, &miss); |
| 3219 __ mov(ebx, ecx); | 3219 __ mov(ebx, ecx); |
| 3220 __ SmiUntag(ebx); | 3220 __ SmiUntag(ebx); |
| 3221 __ mov(eax, FieldOperand(edx, JSObject::kElementsOffset)); | 3221 __ mov(eax, FieldOperand(edx, JSObject::kElementsOffset)); |
| 3222 | 3222 |
| 3223 // Push receiver on the stack to free up a register for the dictionary | 3223 // Push receiver on the stack to free up a register for the dictionary |
| 3224 // probing. | 3224 // probing. |
| 3225 __ push(edx); | 3225 __ push(edx); |
| 3226 __ LoadFromNumberDictionary(&slow, eax, ecx, ebx, edx, edi, eax); | 3226 __ LoadFromNumberDictionary(&slow, eax, ecx, ebx, edx, edi, eax); |
| 3227 // Pop receiver before returning. | 3227 // Pop receiver before returning. |
| 3228 __ pop(edx); | 3228 __ pop(edx); |
| 3229 __ ret(0); | 3229 __ ret(0); |
| 3230 | 3230 |
| 3231 __ bind(&slow); | 3231 __ bind(&slow); |
| 3232 __ pop(edx); | 3232 __ pop(edx); |
| 3233 | 3233 |
| 3234 // ----------- S t a t e ------------- | 3234 // ----------- S t a t e ------------- |
| 3235 // -- ecx : key | 3235 // -- ecx : key |
| 3236 // -- edx : receiver | 3236 // -- edx : receiver |
| 3237 // -- esp[0] : return address | 3237 // -- esp[0] : return address |
| 3238 // ----------------------------------- | 3238 // ----------------------------------- |
| 3239 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow); | 3239 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow); |
| 3240 | 3240 |
| 3241 __ bind(&miss_force_generic); | 3241 __ bind(&miss); |
| 3242 // ----------- S t a t e ------------- | 3242 // ----------- S t a t e ------------- |
| 3243 // -- ecx : key | 3243 // -- ecx : key |
| 3244 // -- edx : receiver | 3244 // -- edx : receiver |
| 3245 // -- esp[0] : return address | 3245 // -- esp[0] : return address |
| 3246 // ----------------------------------- | 3246 // ----------------------------------- |
| 3247 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_MissForceGeneric); | 3247 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
| 3248 } | 3248 } |
| 3249 | 3249 |
| 3250 | 3250 |
| 3251 #undef __ | 3251 #undef __ |
| 3252 | 3252 |
| 3253 } } // namespace v8::internal | 3253 } } // namespace v8::internal |
| 3254 | 3254 |
| 3255 #endif // V8_TARGET_ARCH_IA32 | 3255 #endif // V8_TARGET_ARCH_IA32 |
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