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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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| 3982 ASSERT(!ReturnTrueFalseObject() || HasCallSiteInlineCheck()); | 3982 ASSERT(!ReturnTrueFalseObject() || HasCallSiteInlineCheck()); |
| 3983 | 3983 |
| 3984 // Fixed register usage throughout the stub: | 3984 // Fixed register usage throughout the stub: |
| 3985 const Register object = r0; // Object (lhs). | 3985 const Register object = r0; // Object (lhs). |
| 3986 Register map = r3; // Map of the object. | 3986 Register map = r3; // Map of the object. |
| 3987 const Register function = r1; // Function (rhs). | 3987 const Register function = r1; // Function (rhs). |
| 3988 const Register prototype = r4; // Prototype of the function. | 3988 const Register prototype = r4; // Prototype of the function. |
| 3989 const Register inline_site = r9; | 3989 const Register inline_site = r9; |
| 3990 const Register scratch = r2; | 3990 const Register scratch = r2; |
| 3991 | 3991 |
| 3992 const int32_t kDeltaToLoadBoolResult = 3 * kPointerSize; | 3992 const int32_t kDeltaToLoadBoolResult = 4 * kPointerSize; |
| 3993 | 3993 |
| 3994 Label slow, loop, is_instance, is_not_instance, not_js_object; | 3994 Label slow, loop, is_instance, is_not_instance, not_js_object; |
| 3995 | 3995 |
| 3996 if (!HasArgsInRegisters()) { | 3996 if (!HasArgsInRegisters()) { |
| 3997 __ ldr(object, MemOperand(sp, 1 * kPointerSize)); | 3997 __ ldr(object, MemOperand(sp, 1 * kPointerSize)); |
| 3998 __ ldr(function, MemOperand(sp, 0)); | 3998 __ ldr(function, MemOperand(sp, 0)); |
| 3999 } | 3999 } |
| 4000 | 4000 |
| 4001 // Check that the left hand is a JS object and load map. | 4001 // Check that the left hand is a JS object and load map. |
| 4002 __ JumpIfSmi(object, ¬_js_object); | 4002 __ JumpIfSmi(object, ¬_js_object); |
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| 4033 } else { | 4033 } else { |
| 4034 ASSERT(HasArgsInRegisters()); | 4034 ASSERT(HasArgsInRegisters()); |
| 4035 // Patch the (relocated) inlined map check. | 4035 // Patch the (relocated) inlined map check. |
| 4036 | 4036 |
| 4037 // The offset was stored in r4 safepoint slot. | 4037 // The offset was stored in r4 safepoint slot. |
| 4038 // (See LCodeGen::DoDeferredLInstanceOfKnownGlobal) | 4038 // (See LCodeGen::DoDeferredLInstanceOfKnownGlobal) |
| 4039 __ LoadFromSafepointRegisterSlot(scratch, r4); | 4039 __ LoadFromSafepointRegisterSlot(scratch, r4); |
| 4040 __ sub(inline_site, lr, scratch); | 4040 __ sub(inline_site, lr, scratch); |
| 4041 // Get the map location in scratch and patch it. | 4041 // Get the map location in scratch and patch it. |
| 4042 __ GetRelocatedValueLocation(inline_site, scratch); | 4042 __ GetRelocatedValueLocation(inline_site, scratch); |
| 4043 __ str(map, MemOperand(scratch)); | 4043 __ ldr(scratch, MemOperand(scratch)); |
| 4044 __ str(map, FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 4044 } | 4045 } |
| 4045 | 4046 |
| 4046 // Register mapping: r3 is object map and r4 is function prototype. | 4047 // Register mapping: r3 is object map and r4 is function prototype. |
| 4047 // Get prototype of object into r2. | 4048 // Get prototype of object into r2. |
| 4048 __ ldr(scratch, FieldMemOperand(map, Map::kPrototypeOffset)); | 4049 __ ldr(scratch, FieldMemOperand(map, Map::kPrototypeOffset)); |
| 4049 | 4050 |
| 4050 // We don't need map any more. Use it as a scratch register. | 4051 // We don't need map any more. Use it as a scratch register. |
| 4051 Register scratch2 = map; | 4052 Register scratch2 = map; |
| 4052 map = no_reg; | 4053 map = no_reg; |
| 4053 | 4054 |
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| 7248 __ StoreNumberToDoubleElements(r0, r3, r1, r5, r6, r7, r9, r10, | 7249 __ StoreNumberToDoubleElements(r0, r3, r1, r5, r6, r7, r9, r10, |
| 7249 &slow_elements); | 7250 &slow_elements); |
| 7250 __ Ret(); | 7251 __ Ret(); |
| 7251 } | 7252 } |
| 7252 | 7253 |
| 7253 #undef __ | 7254 #undef __ |
| 7254 | 7255 |
| 7255 } } // namespace v8::internal | 7256 } } // namespace v8::internal |
| 7256 | 7257 |
| 7257 #endif // V8_TARGET_ARCH_ARM | 7258 #endif // V8_TARGET_ARCH_ARM |
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