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Issue 7031074: Cleanup unused lithium instructions. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years, 6 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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2143 2143
2144 InstanceofStub stub(InstanceofStub::kArgsInRegisters); 2144 InstanceofStub stub(InstanceofStub::kArgsInRegisters);
2145 CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 2145 CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
2146 2146
2147 __ cmp(r0, Operand(0)); 2147 __ cmp(r0, Operand(0));
2148 __ mov(r0, Operand(factory()->false_value()), LeaveCC, ne); 2148 __ mov(r0, Operand(factory()->false_value()), LeaveCC, ne);
2149 __ mov(r0, Operand(factory()->true_value()), LeaveCC, eq); 2149 __ mov(r0, Operand(factory()->true_value()), LeaveCC, eq);
2150 } 2150 }
2151 2151
2152 2152
2153 void LCodeGen::DoInstanceOfAndBranch(LInstanceOfAndBranch* instr) {
2154 ASSERT(ToRegister(instr->InputAt(0)).is(r0)); // Object is in r0.
2155 ASSERT(ToRegister(instr->InputAt(1)).is(r1)); // Function is in r1.
2156
2157 int true_block = chunk_->LookupDestination(instr->true_block_id());
2158 int false_block = chunk_->LookupDestination(instr->false_block_id());
2159
2160 InstanceofStub stub(InstanceofStub::kArgsInRegisters);
2161 CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
2162 __ cmp(r0, Operand(0));
2163 EmitBranch(true_block, false_block, eq);
2164 }
2165
2166
2167 void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) { 2153 void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) {
2168 class DeferredInstanceOfKnownGlobal: public LDeferredCode { 2154 class DeferredInstanceOfKnownGlobal: public LDeferredCode {
2169 public: 2155 public:
2170 DeferredInstanceOfKnownGlobal(LCodeGen* codegen, 2156 DeferredInstanceOfKnownGlobal(LCodeGen* codegen,
2171 LInstanceOfKnownGlobal* instr) 2157 LInstanceOfKnownGlobal* instr)
2172 : LDeferredCode(codegen), instr_(instr) { } 2158 : LDeferredCode(codegen), instr_(instr) { }
2173 virtual void Generate() { 2159 virtual void Generate() {
2174 codegen()->DoDeferredLInstanceOfKnownGlobal(instr_, &map_check_); 2160 codegen()->DoDeferredLInstanceOfKnownGlobal(instr_, &map_check_);
2175 } 2161 }
2176 2162
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2311 } 2297 }
2312 __ LoadRoot(ToRegister(instr->result()), 2298 __ LoadRoot(ToRegister(instr->result()),
2313 Heap::kTrueValueRootIndex, 2299 Heap::kTrueValueRootIndex,
2314 condition); 2300 condition);
2315 __ LoadRoot(ToRegister(instr->result()), 2301 __ LoadRoot(ToRegister(instr->result()),
2316 Heap::kFalseValueRootIndex, 2302 Heap::kFalseValueRootIndex,
2317 NegateCondition(condition)); 2303 NegateCondition(condition));
2318 } 2304 }
2319 2305
2320 2306
2321 void LCodeGen::DoCmpTAndBranch(LCmpTAndBranch* instr) {
2322 Token::Value op = instr->op();
2323 int true_block = chunk_->LookupDestination(instr->true_block_id());
2324 int false_block = chunk_->LookupDestination(instr->false_block_id());
2325
2326 Handle<Code> ic = CompareIC::GetUninitialized(op);
2327 CallCode(ic, RelocInfo::CODE_TARGET, instr);
2328
2329 // The compare stub expects compare condition and the input operands
2330 // reversed for GT and LTE.
2331 Condition condition = ComputeCompareCondition(op);
2332 if (op == Token::GT || op == Token::LTE) {
2333 condition = ReverseCondition(condition);
2334 }
2335 __ cmp(r0, Operand(0));
2336 EmitBranch(true_block, false_block, condition);
2337 }
2338
2339
2340 void LCodeGen::DoReturn(LReturn* instr) { 2307 void LCodeGen::DoReturn(LReturn* instr) {
2341 if (FLAG_trace) { 2308 if (FLAG_trace) {
2342 // Push the return value on the stack as the parameter. 2309 // Push the return value on the stack as the parameter.
2343 // Runtime::TraceExit returns its parameter in r0. 2310 // Runtime::TraceExit returns its parameter in r0.
2344 __ push(r0); 2311 __ push(r0);
2345 __ CallRuntime(Runtime::kTraceExit, 1); 2312 __ CallRuntime(Runtime::kTraceExit, 1);
2346 } 2313 }
2347 int32_t sp_delta = (GetParameterCount() + 1) * kPointerSize; 2314 int32_t sp_delta = (GetParameterCount() + 1) * kPointerSize;
2348 __ mov(sp, fp); 2315 __ mov(sp, fp);
2349 __ ldm(ia_w, sp, fp.bit() | lr.bit()); 2316 __ ldm(ia_w, sp, fp.bit() | lr.bit());
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4604 ASSERT(osr_pc_offset_ == -1); 4571 ASSERT(osr_pc_offset_ == -1);
4605 osr_pc_offset_ = masm()->pc_offset(); 4572 osr_pc_offset_ = masm()->pc_offset();
4606 } 4573 }
4607 4574
4608 4575
4609 4576
4610 4577
4611 #undef __ 4578 #undef __
4612 4579
4613 } } // namespace v8::internal 4580 } } // namespace v8::internal
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