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Issue 2366993002: [turbofan] Attach source positions to deopt info. (Closed)
Patch Set: DeoptimizationExit::pos_ made const Created 4 years, 2 months ago
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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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