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Issue 1011113004: CpuProfiler: log pc offset for deopts. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebaselined Created 5 years, 9 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/base/bits.h" 7 #include "src/base/bits.h"
8 #include "src/code-factory.h" 8 #include "src/code-factory.h"
9 #include "src/code-stubs.h" 9 #include "src/code-stubs.h"
10 #include "src/cpu-profiler.h" 10 #include "src/cpu-profiler.h"
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336 __ mov(entry_offset, Operand(entry - base)); 336 __ mov(entry_offset, Operand(entry - base));
337 337
338 if (table_entry->needs_frame) { 338 if (table_entry->needs_frame) {
339 DCHECK(!info()->saves_caller_doubles()); 339 DCHECK(!info()->saves_caller_doubles());
340 Comment(";;; call deopt with frame"); 340 Comment(";;; call deopt with frame");
341 __ PushFixedFrame(); 341 __ PushFixedFrame();
342 __ b(&needs_frame, SetLK); 342 __ b(&needs_frame, SetLK);
343 } else { 343 } else {
344 __ b(&call_deopt_entry, SetLK); 344 __ b(&call_deopt_entry, SetLK);
345 } 345 }
346 info()->LogDeoptCallPosition(masm()->pc_offset(),
347 table_entry->deopt_info.inlining_id);
346 } 348 }
347 349
348 if (needs_frame.is_linked()) { 350 if (needs_frame.is_linked()) {
349 __ bind(&needs_frame); 351 __ bind(&needs_frame);
350 // This variant of deopt can only be used with stubs. Since we don't 352 // This variant of deopt can only be used with stubs. Since we don't
351 // have a function pointer to install in the stack frame that we're 353 // have a function pointer to install in the stack frame that we're
352 // building, install a special marker there instead. 354 // building, install a special marker there instead.
353 DCHECK(info()->IsStub()); 355 DCHECK(info()->IsStub());
354 __ LoadSmiLiteral(ip, Smi::FromInt(StackFrame::STUB)); 356 __ LoadSmiLiteral(ip, Smi::FromInt(StackFrame::STUB));
355 __ push(ip); 357 __ push(ip);
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802 } 804 }
803 805
804 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); 806 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason);
805 807
806 DCHECK(info()->IsStub() || frame_is_built_); 808 DCHECK(info()->IsStub() || frame_is_built_);
807 // Go through jump table if we need to handle condition, build frame, or 809 // Go through jump table if we need to handle condition, build frame, or
808 // restore caller doubles. 810 // restore caller doubles.
809 if (cond == al && frame_is_built_ && !info()->saves_caller_doubles()) { 811 if (cond == al && frame_is_built_ && !info()->saves_caller_doubles()) {
810 DeoptComment(deopt_info); 812 DeoptComment(deopt_info);
811 __ Call(entry, RelocInfo::RUNTIME_ENTRY); 813 __ Call(entry, RelocInfo::RUNTIME_ENTRY);
814 info()->LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id);
812 } else { 815 } else {
813 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, 816 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type,
814 !frame_is_built_); 817 !frame_is_built_);
815 // We often have several deopts to the same entry, reuse the last 818 // We often have several deopts to the same entry, reuse the last
816 // jump entry if this is the case. 819 // jump entry if this is the case.
817 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || 820 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() ||
818 jump_table_.is_empty() || 821 jump_table_.is_empty() ||
819 !table_entry.IsEquivalentTo(jump_table_.last())) { 822 !table_entry.IsEquivalentTo(jump_table_.last())) {
820 jump_table_.Add(table_entry, zone()); 823 jump_table_.Add(table_entry, zone());
821 } 824 }
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6235 __ Push(scope_info); 6238 __ Push(scope_info);
6236 __ push(ToRegister(instr->function())); 6239 __ push(ToRegister(instr->function()));
6237 CallRuntime(Runtime::kPushBlockContext, 2, instr); 6240 CallRuntime(Runtime::kPushBlockContext, 2, instr);
6238 RecordSafepoint(Safepoint::kNoLazyDeopt); 6241 RecordSafepoint(Safepoint::kNoLazyDeopt);
6239 } 6242 }
6240 6243
6241 6244
6242 #undef __ 6245 #undef __
6243 } 6246 }
6244 } // namespace v8::internal 6247 } // namespace v8::internal
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