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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 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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 #if V8_TARGET_ARCH_X64 7 #if V8_TARGET_ARCH_X64
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/code-factory.h" 10 #include "src/code-factory.h"
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310 DCHECK(!info()->saves_caller_doubles()); 310 DCHECK(!info()->saves_caller_doubles());
311 __ Move(kScratchRegister, ExternalReference::ForDeoptEntry(entry)); 311 __ Move(kScratchRegister, ExternalReference::ForDeoptEntry(entry));
312 __ call(&needs_frame); 312 __ call(&needs_frame);
313 } else { 313 } else {
314 if (info()->saves_caller_doubles()) { 314 if (info()->saves_caller_doubles()) {
315 DCHECK(info()->IsStub()); 315 DCHECK(info()->IsStub());
316 RestoreCallerDoubles(); 316 RestoreCallerDoubles();
317 } 317 }
318 __ call(entry, RelocInfo::RUNTIME_ENTRY); 318 __ call(entry, RelocInfo::RUNTIME_ENTRY);
319 } 319 }
320 info()->LogDeoptCallPosition(masm()->pc_offset(),
321 table_entry->deopt_info.inlining_id);
320 } 322 }
321 323
322 if (needs_frame.is_linked()) { 324 if (needs_frame.is_linked()) {
323 __ bind(&needs_frame); 325 __ bind(&needs_frame);
324 /* stack layout 326 /* stack layout
325 4: return address <-- rsp 327 4: return address <-- rsp
326 3: garbage 328 3: garbage
327 2: garbage 329 2: garbage
328 1: garbage 330 1: garbage
329 0: garbage 331 0: garbage
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351 __ movp(MemOperand(rsp, 4 * kPointerSize), rbp); 353 __ movp(MemOperand(rsp, 4 * kPointerSize), rbp);
352 __ leap(rbp, MemOperand(rsp, 4 * kPointerSize)); 354 __ leap(rbp, MemOperand(rsp, 4 * kPointerSize));
353 355
354 // This variant of deopt can only be used with stubs. Since we don't 356 // This variant of deopt can only be used with stubs. Since we don't
355 // have a function pointer to install in the stack frame that we're 357 // have a function pointer to install in the stack frame that we're
356 // building, install a special marker there instead. 358 // building, install a special marker there instead.
357 DCHECK(info()->IsStub()); 359 DCHECK(info()->IsStub());
358 __ Move(MemOperand(rsp, 2 * kPointerSize), Smi::FromInt(StackFrame::STUB)); 360 __ Move(MemOperand(rsp, 2 * kPointerSize), Smi::FromInt(StackFrame::STUB));
359 361
360 /* stack layout 362 /* stack layout
361 4: old ebp 363 4: old rbp
362 3: context pointer 364 3: context pointer
363 2: stub marker 365 2: stub marker
364 1: return address 366 1: return address
365 0: entry address <-- rsp 367 0: entry address <-- rsp
366 */ 368 */
367 __ ret(0); 369 __ ret(0);
368 } 370 }
369 371
370 return !is_aborted(); 372 return !is_aborted();
371 } 373 }
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804 806
805 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); 807 Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason);
806 808
807 DCHECK(info()->IsStub() || frame_is_built_); 809 DCHECK(info()->IsStub() || frame_is_built_);
808 // Go through jump table if we need to handle condition, build frame, or 810 // Go through jump table if we need to handle condition, build frame, or
809 // restore caller doubles. 811 // restore caller doubles.
810 if (cc == no_condition && frame_is_built_ && 812 if (cc == no_condition && frame_is_built_ &&
811 !info()->saves_caller_doubles()) { 813 !info()->saves_caller_doubles()) {
812 DeoptComment(deopt_info); 814 DeoptComment(deopt_info);
813 __ call(entry, RelocInfo::RUNTIME_ENTRY); 815 __ call(entry, RelocInfo::RUNTIME_ENTRY);
816 info()->LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id);
814 } else { 817 } else {
815 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, 818 Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type,
816 !frame_is_built_); 819 !frame_is_built_);
817 // We often have several deopts to the same entry, reuse the last 820 // We often have several deopts to the same entry, reuse the last
818 // jump entry if this is the case. 821 // jump entry if this is the case.
819 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || 822 if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() ||
820 jump_table_.is_empty() || 823 jump_table_.is_empty() ||
821 !table_entry.IsEquivalentTo(jump_table_.last())) { 824 !table_entry.IsEquivalentTo(jump_table_.last())) {
822 jump_table_.Add(table_entry, zone()); 825 jump_table_.Add(table_entry, zone());
823 } 826 }
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5972 CallRuntime(Runtime::kPushBlockContext, 2, instr); 5975 CallRuntime(Runtime::kPushBlockContext, 2, instr);
5973 RecordSafepoint(Safepoint::kNoLazyDeopt); 5976 RecordSafepoint(Safepoint::kNoLazyDeopt);
5974 } 5977 }
5975 5978
5976 5979
5977 #undef __ 5980 #undef __
5978 5981
5979 } } // namespace v8::internal 5982 } } // namespace v8::internal
5980 5983
5981 #endif // V8_TARGET_ARCH_X64 5984 #endif // V8_TARGET_ARCH_X64
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