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Issue 6698015: Implement strict mode arguments caller/callee. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Kevin's feedback. Created 9 years, 9 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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203 int offset = scope()->num_parameters() * kPointerSize; 203 int offset = scope()->num_parameters() * kPointerSize;
204 __ add(r2, fp, 204 __ add(r2, fp,
205 Operand(StandardFrameConstants::kCallerSPOffset + offset)); 205 Operand(StandardFrameConstants::kCallerSPOffset + offset));
206 __ mov(r1, Operand(Smi::FromInt(scope()->num_parameters()))); 206 __ mov(r1, Operand(Smi::FromInt(scope()->num_parameters())));
207 __ Push(r3, r2, r1); 207 __ Push(r3, r2, r1);
208 208
209 // Arguments to ArgumentsAccessStub: 209 // Arguments to ArgumentsAccessStub:
210 // function, receiver address, parameter count. 210 // function, receiver address, parameter count.
211 // The stub will rewrite receiever and parameter count if the previous 211 // The stub will rewrite receiever and parameter count if the previous
212 // stack frame was an arguments adapter frame. 212 // stack frame was an arguments adapter frame.
213 ArgumentsAccessStub stub(ArgumentsAccessStub::NEW_OBJECT); 213 ArgumentsAccessStub stub(is_strict()
214 ? ArgumentsAccessStub::NEW_STRICT
215 : ArgumentsAccessStub::NEW_NON_STRICT);
214 __ CallStub(&stub); 216 __ CallStub(&stub);
215 217
216 Variable* arguments_shadow = scope()->arguments_shadow(); 218 Variable* arguments_shadow = scope()->arguments_shadow();
217 if (arguments_shadow != NULL) { 219 if (arguments_shadow != NULL) {
218 // Duplicate the value; move-to-slot operation might clobber registers. 220 // Duplicate the value; move-to-slot operation might clobber registers.
219 __ mov(r3, r0); 221 __ mov(r3, r0);
220 Move(arguments_shadow->AsSlot(), r3, r1, r2); 222 Move(arguments_shadow->AsSlot(), r3, r1, r2);
221 } 223 }
222 Move(arguments->AsSlot(), r0, r1, r2); 224 Move(arguments->AsSlot(), r0, r1, r2);
223 } 225 }
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4283 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value. 4285 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value.
4284 __ add(pc, r1, Operand(masm_->CodeObject())); 4286 __ add(pc, r1, Operand(masm_->CodeObject()));
4285 } 4287 }
4286 4288
4287 4289
4288 #undef __ 4290 #undef __
4289 4291
4290 } } // namespace v8::internal 4292 } } // namespace v8::internal
4291 4293
4292 #endif // V8_TARGET_ARCH_ARM 4294 #endif // V8_TARGET_ARCH_ARM
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