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Issue 5985012: Rename write buffers to store buffers. (Closed) Base URL: http://v8.googlecode.com/svn/branches/experimental/gc/
Patch Set: Created 9 years, 11 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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252 // Return 1/0 for true/false in eax. 252 // Return 1/0 for true/false in eax.
253 __ bind(&true_result); 253 __ bind(&true_result);
254 __ mov(eax, 1); 254 __ mov(eax, 1);
255 __ ret(1 * kPointerSize); 255 __ ret(1 * kPointerSize);
256 __ bind(&false_result); 256 __ bind(&false_result);
257 __ mov(eax, 0); 257 __ mov(eax, 0);
258 __ ret(1 * kPointerSize); 258 __ ret(1 * kPointerSize);
259 } 259 }
260 260
261 261
262 void WriteBufferOverflowStub::Generate(MacroAssembler* masm) { 262 void StoreBufferOverflowStub::Generate(MacroAssembler* masm) {
263 // We don't allow a GC during a write buffer overflow so there is no need to 263 // We don't allow a GC during a store buffer overflow so there is no need to
264 // store the registers in any particular way, but we do have to store and 264 // store the registers in any particular way, but we do have to store and
265 // restore them. 265 // restore them.
266 __ pushad(); 266 __ pushad();
267 if (save_doubles_ == kSaveFPRegs) { 267 if (save_doubles_ == kSaveFPRegs) {
268 CpuFeatures::Scope scope(SSE2); 268 CpuFeatures::Scope scope(SSE2);
269 __ sub(Operand(esp), Immediate(kDoubleSize * XMMRegister::kNumRegisters)); 269 __ sub(Operand(esp), Immediate(kDoubleSize * XMMRegister::kNumRegisters));
270 for (int i = 0; i < XMMRegister::kNumRegisters; i++) { 270 for (int i = 0; i < XMMRegister::kNumRegisters; i++) {
271 XMMRegister reg = XMMRegister::from_code(i); 271 XMMRegister reg = XMMRegister::from_code(i);
272 __ movdbl(Operand(esp, i * kDoubleSize), reg); 272 __ movdbl(Operand(esp, i * kDoubleSize), reg);
273 } 273 }
274 } 274 }
275 const int argument_count = 0; 275 const int argument_count = 0;
276 __ PrepareCallCFunction(argument_count, ecx); 276 __ PrepareCallCFunction(argument_count, ecx);
277 ExternalReference write_buffer_overflow = 277 ExternalReference store_buffer_overflow =
278 ExternalReference(Runtime::FunctionForId(Runtime::kWriteBufferOverflow)); 278 ExternalReference(Runtime::FunctionForId(Runtime::kStoreBufferOverflow));
279 __ CallCFunction(write_buffer_overflow, argument_count); 279 __ CallCFunction(store_buffer_overflow, argument_count);
280 if (save_doubles_ == kSaveFPRegs) { 280 if (save_doubles_ == kSaveFPRegs) {
281 CpuFeatures::Scope scope(SSE2); 281 CpuFeatures::Scope scope(SSE2);
282 for (int i = 0; i < XMMRegister::kNumRegisters; i++) { 282 for (int i = 0; i < XMMRegister::kNumRegisters; i++) {
283 XMMRegister reg = XMMRegister::from_code(i); 283 XMMRegister reg = XMMRegister::from_code(i);
284 __ movdbl(reg, Operand(esp, i * kDoubleSize)); 284 __ movdbl(reg, Operand(esp, i * kDoubleSize));
285 } 285 }
286 __ add(Operand(esp), Immediate(kDoubleSize * XMMRegister::kNumRegisters)); 286 __ add(Operand(esp), Immediate(kDoubleSize * XMMRegister::kNumRegisters));
287 } 287 }
288 __ popad(); 288 __ popad();
289 __ ret(0); 289 __ ret(0);
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6440 // Do a tail call to the rewritten stub. 6440 // Do a tail call to the rewritten stub.
6441 __ jmp(Operand(edi)); 6441 __ jmp(Operand(edi));
6442 } 6442 }
6443 6443
6444 6444
6445 #undef __ 6445 #undef __
6446 6446
6447 } } // namespace v8::internal 6447 } } // namespace v8::internal
6448 6448
6449 #endif // V8_TARGET_ARCH_IA32 6449 #endif // V8_TARGET_ARCH_IA32
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