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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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248 // Return 1/0 for true/false in rax. 248 // Return 1/0 for true/false in rax.
249 __ bind(&true_result); 249 __ bind(&true_result);
250 __ movq(rax, Immediate(1)); 250 __ movq(rax, Immediate(1));
251 __ ret(1 * kPointerSize); 251 __ ret(1 * kPointerSize);
252 __ bind(&false_result); 252 __ bind(&false_result);
253 __ Set(rax, 0); 253 __ Set(rax, 0);
254 __ ret(1 * kPointerSize); 254 __ ret(1 * kPointerSize);
255 } 255 }
256 256
257 257
258 void WriteBufferOverflowStub::Generate(MacroAssembler* masm) { 258 void StoreBufferOverflowStub::Generate(MacroAssembler* masm) {
259 // We don't allow a GC during a write buffer overflow so there is no need to 259 // We don't allow a GC during a store buffer overflow so there is no need to
260 // store the registers in any particular way, but we do have to store and 260 // store the registers in any particular way, but we do have to store and
261 // restore them. 261 // restore them.
262 Register saved_regs[] = 262 Register saved_regs[] =
263 { rax, rcx, rdx, rbx, rbp, rsi, rdi, r8, r9, r10, r11 }; 263 { rax, rcx, rdx, rbx, rbp, rsi, rdi, r8, r9, r10, r11 };
264 const int kNumberOfSavedRegs = sizeof(saved_regs) / sizeof(Register); 264 const int kNumberOfSavedRegs = sizeof(saved_regs) / sizeof(Register);
265 for (int i = 0; i < kNumberOfSavedRegs; i++) { 265 for (int i = 0; i < kNumberOfSavedRegs; i++) {
266 __ push(saved_regs[i]); 266 __ push(saved_regs[i]);
267 } 267 }
268 // R12 to r15 are callee save on all platforms. 268 // R12 to r15 are callee save on all platforms.
269 if (save_doubles_ == kSaveFPRegs) { 269 if (save_doubles_ == kSaveFPRegs) {
270 CpuFeatures::Scope scope(SSE2); 270 CpuFeatures::Scope scope(SSE2);
271 __ subq(rsp, Immediate(kDoubleSize * XMMRegister::kNumRegisters)); 271 __ subq(rsp, Immediate(kDoubleSize * XMMRegister::kNumRegisters));
272 for (int i = 0; i < XMMRegister::kNumRegisters; i++) { 272 for (int i = 0; i < XMMRegister::kNumRegisters; i++) {
273 XMMRegister reg = XMMRegister::from_code(i); 273 XMMRegister reg = XMMRegister::from_code(i);
274 __ movsd(Operand(rsp, i * kDoubleSize), reg); 274 __ movsd(Operand(rsp, i * kDoubleSize), reg);
275 } 275 }
276 } 276 }
277 const int argument_count = 0; 277 const int argument_count = 0;
278 __ PrepareCallCFunction(argument_count); 278 __ PrepareCallCFunction(argument_count);
279 ExternalReference write_buffer_overflow = 279 ExternalReference store_buffer_overflow =
280 ExternalReference(Runtime::FunctionForId(Runtime::kWriteBufferOverflow)); 280 ExternalReference(Runtime::FunctionForId(Runtime::kStoreBufferOverflow));
281 __ CallCFunction(write_buffer_overflow, argument_count); 281 __ CallCFunction(store_buffer_overflow, argument_count);
282 if (save_doubles_ == kSaveFPRegs) { 282 if (save_doubles_ == kSaveFPRegs) {
283 CpuFeatures::Scope scope(SSE2); 283 CpuFeatures::Scope scope(SSE2);
284 for (int i = 0; i < XMMRegister::kNumRegisters; i++) { 284 for (int i = 0; i < XMMRegister::kNumRegisters; i++) {
285 XMMRegister reg = XMMRegister::from_code(i); 285 XMMRegister reg = XMMRegister::from_code(i);
286 __ movsd(reg, Operand(rsp, i * kDoubleSize)); 286 __ movsd(reg, Operand(rsp, i * kDoubleSize));
287 } 287 }
288 __ addq(rsp, Immediate(kDoubleSize * XMMRegister::kNumRegisters)); 288 __ addq(rsp, Immediate(kDoubleSize * XMMRegister::kNumRegisters));
289 } 289 }
290 for (int i = kNumberOfSavedRegs - 1; i >= 0; i--) { 290 for (int i = kNumberOfSavedRegs - 1; i >= 0; i--) {
291 __ pop(saved_regs[i]); 291 __ pop(saved_regs[i]);
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4144 4144
4145 void ICCompareStub::GenerateMiss(MacroAssembler* masm) { 4145 void ICCompareStub::GenerateMiss(MacroAssembler* masm) {
4146 UNIMPLEMENTED(); 4146 UNIMPLEMENTED();
4147 } 4147 }
4148 4148
4149 #undef __ 4149 #undef __
4150 4150
4151 } } // namespace v8::internal 4151 } } // namespace v8::internal
4152 4152
4153 #endif // V8_TARGET_ARCH_X64 4153 #endif // V8_TARGET_ARCH_X64
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