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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/compiler/code-generator.h" | 5 #include "src/compiler/code-generator.h" |
| 6 | 6 |
| 7 #include "src/compilation-info.h" | 7 #include "src/compilation-info.h" |
| 8 #include "src/compiler/code-generator-impl.h" | 8 #include "src/compiler/code-generator-impl.h" |
| 9 #include "src/compiler/gap-resolver.h" | 9 #include "src/compiler/gap-resolver.h" |
| 10 #include "src/compiler/node-matchers.h" | 10 #include "src/compiler/node-matchers.h" |
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| 982 break; | 982 break; |
| 983 case kArchNop: | 983 case kArchNop: |
| 984 case kArchThrowTerminator: | 984 case kArchThrowTerminator: |
| 985 // don't emit code for nops. | 985 // don't emit code for nops. |
| 986 break; | 986 break; |
| 987 case kArchDeoptimize: { | 987 case kArchDeoptimize: { |
| 988 int deopt_state_id = | 988 int deopt_state_id = |
| 989 BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore()); | 989 BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore()); |
| 990 Deoptimizer::BailoutType bailout_type = | 990 Deoptimizer::BailoutType bailout_type = |
| 991 Deoptimizer::BailoutType(MiscField::decode(instr->opcode())); | 991 Deoptimizer::BailoutType(MiscField::decode(instr->opcode())); |
| 992 CodeGenResult result = | 992 CodeGenResult result = AssembleDeoptimizerCall( |
| 993 AssembleDeoptimizerCall(deopt_state_id, bailout_type); | 993 deopt_state_id, bailout_type, current_source_position_); |
| 994 if (result != kSuccess) return result; | 994 if (result != kSuccess) return result; |
| 995 break; | 995 break; |
| 996 } | 996 } |
| 997 case kArchRet: | 997 case kArchRet: |
| 998 AssembleReturn(); | 998 AssembleReturn(); |
| 999 break; | 999 break; |
| 1000 case kArchStackPointer: | 1000 case kArchStackPointer: |
| 1001 __ LoadRR(i.OutputRegister(), sp); | 1001 __ LoadRR(i.OutputRegister(), sp); |
| 1002 break; | 1002 break; |
| 1003 case kArchFramePointer: | 1003 case kArchFramePointer: |
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| 2185 Label* const table = AddJumpTable(cases, case_count); | 2185 Label* const table = AddJumpTable(cases, case_count); |
| 2186 __ CmpLogicalP(input, Operand(case_count)); | 2186 __ CmpLogicalP(input, Operand(case_count)); |
| 2187 __ bge(GetLabel(i.InputRpo(1))); | 2187 __ bge(GetLabel(i.InputRpo(1))); |
| 2188 __ larl(kScratchReg, table); | 2188 __ larl(kScratchReg, table); |
| 2189 __ ShiftLeftP(r1, input, Operand(kPointerSizeLog2)); | 2189 __ ShiftLeftP(r1, input, Operand(kPointerSizeLog2)); |
| 2190 __ LoadP(kScratchReg, MemOperand(kScratchReg, r1)); | 2190 __ LoadP(kScratchReg, MemOperand(kScratchReg, r1)); |
| 2191 __ Jump(kScratchReg); | 2191 __ Jump(kScratchReg); |
| 2192 } | 2192 } |
| 2193 | 2193 |
| 2194 CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall( | 2194 CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall( |
| 2195 int deoptimization_id, Deoptimizer::BailoutType bailout_type) { | 2195 int deoptimization_id, Deoptimizer::BailoutType bailout_type, |
| 2196 SourcePosition pos) { |
| 2196 Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( | 2197 Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( |
| 2197 isolate(), deoptimization_id, bailout_type); | 2198 isolate(), deoptimization_id, bailout_type); |
| 2198 // TODO(turbofan): We should be able to generate better code by sharing the | 2199 // TODO(turbofan): We should be able to generate better code by sharing the |
| 2199 // actual final call site and just bl'ing to it here, similar to what we do | 2200 // actual final call site and just bl'ing to it here, similar to what we do |
| 2200 // in the lithium backend. | 2201 // in the lithium backend. |
| 2201 if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts; | 2202 if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts; |
| 2202 DeoptimizeReason deoptimization_reason = | 2203 DeoptimizeReason deoptimization_reason = |
| 2203 GetDeoptimizationReason(deoptimization_id); | 2204 GetDeoptimizationReason(deoptimization_id); |
| 2204 __ RecordDeoptReason(deoptimization_reason, 0, deoptimization_id); | 2205 __ RecordDeoptReason(deoptimization_reason, pos.raw(), deoptimization_id); |
| 2205 __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); | 2206 __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); |
| 2206 return kSuccess; | 2207 return kSuccess; |
| 2207 } | 2208 } |
| 2208 | 2209 |
| 2209 void CodeGenerator::FinishFrame(Frame* frame) { | 2210 void CodeGenerator::FinishFrame(Frame* frame) { |
| 2210 CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); | 2211 CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
| 2211 const RegList double_saves = descriptor->CalleeSavedFPRegisters(); | 2212 const RegList double_saves = descriptor->CalleeSavedFPRegisters(); |
| 2212 | 2213 |
| 2213 // Save callee-saved Double registers. | 2214 // Save callee-saved Double registers. |
| 2214 if (double_saves != 0) { | 2215 if (double_saves != 0) { |
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| 2544 padding_size -= 2; | 2545 padding_size -= 2; |
| 2545 } | 2546 } |
| 2546 } | 2547 } |
| 2547 } | 2548 } |
| 2548 | 2549 |
| 2549 #undef __ | 2550 #undef __ |
| 2550 | 2551 |
| 2551 } // namespace compiler | 2552 } // namespace compiler |
| 2552 } // namespace internal | 2553 } // namespace internal |
| 2553 } // namespace v8 | 2554 } // namespace v8 |
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