Record AST ids in relocation info at spots where we collect dynamic type feedback.

src/x64/full-codegen-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 26 matching lines @@
 #include "parser.h"
 #include "scopes.h"
 #include "stub-cache.h"
 
 namespace v8 {
 namespace internal {
 
 #define __ ACCESS_MASM(masm_)
 
 
+static unsigned GetPropertyId(Property* property) {
+  if (property->is_synthetic()) return AstNode::kNoNumber;
+  return property->id();
+}
+
+
 class JumpPatchSite BASE_EMBEDDED {
  public:
   explicit JumpPatchSite(MacroAssembler* masm)
       : masm_(masm) {
 #ifdef DEBUG
     info_emitted_ = false;
 #endif
   }
 
   ~JumpPatchSite() {
@@ skipping 679 matching lines @@
         __ movq(rdx, rax);
         __ LoadRoot(rax, Heap::kTheHoleValueRootIndex);
       }
       ASSERT(prop->key()->AsLiteral() != NULL &&
              prop->key()->AsLiteral()->handle()->IsSmi());
       __ Move(rcx, prop->key()->AsLiteral()->handle());
 
       Handle<Code> ic = is_strict_mode()
           ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict()
           : isolate()->builtins()->KeyedStoreIC_Initialize();
-      EmitCallIC(ic, RelocInfo::CODE_TARGET);
+      EmitCallIC(ic, RelocInfo::CODE_TARGET, GetPropertyId(prop));
     }
   }
 }
 
 
 void FullCodeGenerator::VisitDeclaration(Declaration* decl) {
   EmitDeclaration(decl->proxy()->var(), decl->mode(), decl->fun());
 }
 
 
@@ skipping 52 matching lines @@
       __ cmpq(rdx, rax);
       __ j(not_equal, &next_test);
       __ Drop(1);  // Switch value is no longer needed.
       __ jmp(clause->body_target());
       __ bind(&slow_case);
     }
 
     // Record position before stub call for type feedback.
     SetSourcePosition(clause->position());
     Handle<Code> ic = CompareIC::GetUninitialized(Token::EQ_STRICT);
-    EmitCallIC(ic, &patch_site);
+    EmitCallIC(ic, &patch_site, clause->label()->id());
 
     __ testq(rax, rax);
     __ j(not_equal, &next_test);
     __ Drop(1);  // Switch value is no longer needed.
     __ jmp(clause->body_target());
   }
 
   // Discard the test value and jump to the default if present, otherwise to
   // the end of the statement.
   __ bind(&next_test);
@@ skipping 369 matching lines @@
             key_literal->handle()->IsSmi()) {
           // Load arguments object if there are no eval-introduced
           // variables. Then load the argument from the arguments
           // object using keyed load.
           __ movq(rdx,
                   ContextSlotOperandCheckExtensions(obj_proxy->var()->AsSlot(),
                                                     slow));
           __ Move(rax, key_literal->handle());
           Handle<Code> ic =
               isolate()->builtins()->KeyedLoadIC_Initialize();
-          EmitCallIC(ic, RelocInfo::CODE_TARGET);
+          EmitCallIC(ic, RelocInfo::CODE_TARGET, GetPropertyId(property));
           __ jmp(done);
         }
       }
     }
   }
 }
 
 
 void FullCodeGenerator::EmitVariableLoad(Variable* var) {
   // Four cases: non-this global variables, lookup slots, all other
@@ skipping 65 matching lines @@
     // Assert that the key is a smi.
     Literal* key_literal = property->key()->AsLiteral();
     ASSERT_NOT_NULL(key_literal);
     ASSERT(key_literal->handle()->IsSmi());
 
     // Load the key.
     __ Move(rax, key_literal->handle());
 
     // Do a keyed property load.
     Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
-    EmitCallIC(ic, RelocInfo::CODE_TARGET);
+    EmitCallIC(ic, RelocInfo::CODE_TARGET, GetPropertyId(property));
     context()->Plug(rax);
   }
 }
 
 
 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) {
   Comment cmnt(masm_, "[ RegExpLiteral");
   Label materialized;
   // Registers will be used as follows:
   // rdi = JS function.
@@ skipping 90 matching lines @@
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         ASSERT(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->handle()->IsSymbol()) {
           VisitForAccumulatorValue(value);
           __ Move(rcx, key->handle());
           __ movq(rdx, Operand(rsp, 0));
           if (property->emit_store()) {
             Handle<Code> ic = isolate()->builtins()->StoreIC_Initialize();
-            EmitCallIC(ic, RelocInfo::CODE_TARGET);
+            EmitCallIC(ic, RelocInfo::CODE_TARGET, key->id());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           }
           break;
         }
         // Fall through.
       case ObjectLiteral::Property::PROTOTYPE:
         __ push(Operand(rsp, 0));  // Duplicate receiver.
         VisitForStackValue(key);
         VisitForStackValue(value);
         if (property->emit_store()) {
@@ skipping 182 matching lines @@
     Token::Value op = expr->binary_op();
     __ push(rax);  // Left operand goes on the stack.
     VisitForAccumulatorValue(expr->value());
 
     OverwriteMode mode = expr->value()->ResultOverwriteAllowed()
         ? OVERWRITE_RIGHT
         : NO_OVERWRITE;
     SetSourcePosition(expr->position() + 1);
     AccumulatorValueContext context(this);
     if (ShouldInlineSmiCase(op)) {
-      EmitInlineSmiBinaryOp(expr,
+      EmitInlineSmiBinaryOp(expr->binary_operation(),
                             op,
                             mode,
                             expr->target(),
                             expr->value());
     } else {
-      EmitBinaryOp(op, mode);
+      EmitBinaryOp(expr->binary_operation(), op, mode);
     }
     // Deoptimization point in case the binary operation may have side effects.
     PrepareForBailout(expr->binary_operation(), TOS_REG);
   } else {
     VisitForAccumulatorValue(expr->value());
   }
 
   // Record source position before possible IC call.
   SetSourcePosition(expr->position());
 
@@ skipping 13 matching lines @@
       break;
   }
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   __ Move(rcx, key->handle());
   Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize();
-  EmitCallIC(ic, RelocInfo::CODE_TARGET);
+  EmitCallIC(ic, RelocInfo::CODE_TARGET, GetPropertyId(prop));
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
-  EmitCallIC(ic, RelocInfo::CODE_TARGET);
+  EmitCallIC(ic, RelocInfo::CODE_TARGET, GetPropertyId(prop));
 }
 
 
-void FullCodeGenerator::EmitInlineSmiBinaryOp(Expression* expr,
+void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
                                               OverwriteMode mode,
                                               Expression* left,
                                               Expression* right) {
   // Do combined smi check of the operands. Left operand is on the
   // stack (popped into rdx). Right operand is in rax but moved into
   // rcx to make the shifts easier.
   NearLabel done, stub_call, smi_case;
   __ pop(rdx);
   __ movq(rcx, rax);
   __ or_(rax, rdx);
   JumpPatchSite patch_site(masm_);
   patch_site.EmitJumpIfSmi(rax, &smi_case);
 
   __ bind(&stub_call);
   __ movq(rax, rcx);
   TypeRecordingBinaryOpStub stub(op, mode);
-  EmitCallIC(stub.GetCode(), &patch_site);
+  EmitCallIC(stub.GetCode(), &patch_site, expr->id());
   __ jmp(&done);
 
   __ bind(&smi_case);
   switch (op) {
     case Token::SAR:
       __ SmiShiftArithmeticRight(rax, rdx, rcx);
       break;
     case Token::SHL:
       __ SmiShiftLeft(rax, rdx, rcx);
       break;
@@ skipping 21 matching lines @@
     default:
       UNREACHABLE();
       break;
   }
 
   __ bind(&done);
   context()->Plug(rax);
 }
 
 
-void FullCodeGenerator::EmitBinaryOp(Token::Value op,
+void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr,
+                                     Token::Value op,
                                      OverwriteMode mode) {
   __ pop(rdx);
   TypeRecordingBinaryOpStub stub(op, mode);
-  EmitCallIC(stub.GetCode(), NULL);  // NULL signals no inlined smi code.
+  // NULL signals no inlined smi code.
+  EmitCallIC(stub.GetCode(), NULL, expr->id());
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitAssignment(Expression* expr, int bailout_ast_id) {
   // Invalid left-hand sides are rewritten to have a 'throw
   // ReferenceError' on the left-hand side.
   if (!expr->IsValidLeftHandSide()) {
     VisitForEffect(expr);
     return;
@@ skipping 211 matching lines @@
   if (expr->ends_initialization_block()) {
     __ movq(rdx, Operand(rsp, 0));  // Leave receiver on the stack for later.
   } else {
     __ pop(rdx);
   }
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   Handle<Code> ic = is_strict_mode()
       ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict()
       : isolate()->builtins()->KeyedStoreIC_Initialize();
-  EmitCallIC(ic, RelocInfo::CODE_TARGET);
+  EmitCallIC(ic, RelocInfo::CODE_TARGET, expr->id());
 
   // If the assignment ends an initialization block, revert to fast case.
   if (expr->ends_initialization_block()) {
     __ pop(rdx);
     __ push(rax);  // Result of assignment, saved even if not needed.
     __ push(rdx);
     __ CallRuntime(Runtime::kToFastProperties, 1);
     __ pop(rax);
   }
 
@@ skipping 31 matching lines @@
       VisitForStackValue(args->at(i));
     }
     __ Move(rcx, name);
   }
   // Record source position for debugger.
   SetSourcePosition(expr->position());
   // Call the IC initialization code.
   InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
   Handle<Code> ic =
       ISOLATE->stub_cache()->ComputeCallInitialize(arg_count, in_loop);
-  EmitCallIC(ic, mode);
+  EmitCallIC(ic, mode, expr->id());
   RecordJSReturnSite(expr);
   // Restore context register.
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitKeyedCallWithIC(Call* expr,
                                             Expression* key,
                                             RelocInfo::Mode mode) {
@@ skipping 14 matching lines @@
       VisitForStackValue(args->at(i));
     }
   }
   // Record source position for debugger.
   SetSourcePosition(expr->position());
   // Call the IC initialization code.
   InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
   Handle<Code> ic =
       ISOLATE->stub_cache()->ComputeKeyedCallInitialize(arg_count, in_loop);
   __ movq(rcx, Operand(rsp, (arg_count + 1) * kPointerSize));  // Key.
-  EmitCallIC(ic, mode);
+  EmitCallIC(ic, mode, expr->id());
   RecordJSReturnSite(expr);
   // Restore context register.
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   context()->DropAndPlug(1, rax);  // Drop the key still on the stack.
 }
 
 
 void FullCodeGenerator::EmitCallWithStub(Call* expr) {
   // Code common for calls using the call stub.
   ZoneList<Expression*>* args = expr->arguments();
@@ skipping 171 matching lines @@
         __ movq(rdx, operand);
 
         ASSERT(prop->key()->AsLiteral() != NULL);
         ASSERT(prop->key()->AsLiteral()->handle()->IsSmi());
         __ Move(rax, prop->key()->AsLiteral()->handle());
 
         // Record source code position for IC call.
         SetSourcePosition(prop->position());
 
         Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
-        EmitCallIC(ic, RelocInfo::CODE_TARGET);
+        EmitCallIC(ic, RelocInfo::CODE_TARGET, GetPropertyId(prop));
         // Push result (function).
         __ push(rax);
         // Push Global receiver.
         __ movq(rcx, GlobalObjectOperand());
         __ push(FieldOperand(rcx, GlobalObject::kGlobalReceiverOffset));
         EmitCallWithStub(expr);
       } else {
         { PreservePositionScope scope(masm()->positions_recorder());
           VisitForStackValue(prop->obj());
         }
@@ skipping 1339 matching lines @@
   for (int i = 0; i < arg_count; i++) {
     VisitForStackValue(args->at(i));
   }
 
   if (expr->is_jsruntime()) {
     // Call the JS runtime function using a call IC.
     __ Move(rcx, expr->name());
     InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
     Handle<Code> ic =
         ISOLATE->stub_cache()->ComputeCallInitialize(arg_count, in_loop);
-    EmitCallIC(ic, RelocInfo::CODE_TARGET);
+    EmitCallIC(ic, RelocInfo::CODE_TARGET, expr->id());
     // Restore context register.
     __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   } else {
     __ CallRuntime(expr->function(), arg_count);
   }
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
@@ skipping 264 matching lines @@
   SetSourcePosition(expr->position());
 
   // Call stub for +1/-1.
   TypeRecordingBinaryOpStub stub(expr->binary_op(), NO_OVERWRITE);
   if (expr->op() == Token::INC) {
     __ Move(rdx, Smi::FromInt(1));
   } else {
     __ movq(rdx, rax);
     __ Move(rax, Smi::FromInt(1));
   }
-  EmitCallIC(stub.GetCode(), &patch_site);
+  EmitCallIC(stub.GetCode(), &patch_site, expr->CountId());
   __ bind(&done);
 
   // Store the value returned in rax.
   switch (assign_type) {
     case VARIABLE:
       if (expr->is_postfix()) {
         // Perform the assignment as if via '='.
         { EffectContext context(this);
           EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                  Token::ASSIGN);
@@ skipping 12 matching lines @@
         PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
         context()->Plug(rax);
       }
       break;
     case NAMED_PROPERTY: {
       __ Move(rcx, prop->key()->AsLiteral()->handle());
       __ pop(rdx);
       Handle<Code> ic = is_strict_mode()
           ? isolate()->builtins()->StoreIC_Initialize_Strict()
           : isolate()->builtins()->StoreIC_Initialize();
-      EmitCallIC(ic, RelocInfo::CODE_TARGET);
+      EmitCallIC(ic, RelocInfo::CODE_TARGET, expr->id());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(rax);
       }
       break;
     }
     case KEYED_PROPERTY: {
       __ pop(rcx);
       __ pop(rdx);
       Handle<Code> ic = is_strict_mode()
           ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict()
           : isolate()->builtins()->KeyedStoreIC_Initialize();
-      EmitCallIC(ic, RelocInfo::CODE_TARGET);
+      EmitCallIC(ic, RelocInfo::CODE_TARGET, expr->id());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(rax);
       }
       break;
     }
@@ skipping 204 matching lines @@
         __ or_(rcx, rax);
         patch_site.EmitJumpIfNotSmi(rcx, &slow_case);
         __ cmpq(rdx, rax);
         Split(cc, if_true, if_false, NULL);
         __ bind(&slow_case);
       }
 
       // Record position and call the compare IC.
       SetSourcePosition(expr->position());
       Handle<Code> ic = CompareIC::GetUninitialized(op);
-      EmitCallIC(ic, &patch_site);
+      EmitCallIC(ic, &patch_site, expr->id());
 
       PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
       __ testq(rax, rax);
       Split(cc, if_true, if_false, fall_through);
     }
   }
 
   // Convert the result of the comparison into one expected for this
   // expression's context.
   context()->Plug(if_true, if_false);
@@ skipping 39 matching lines @@
 Register FullCodeGenerator::result_register() {
   return rax;
 }
 
 
 Register FullCodeGenerator::context_register() {
   return rsi;
 }
 
 
-void FullCodeGenerator::EmitCallIC(Handle<Code> ic, RelocInfo::Mode mode) {
+void FullCodeGenerator::EmitCallIC(Handle<Code> ic,
+                                   RelocInfo::Mode mode,
+                                   unsigned ast_id) {
   ASSERT(mode == RelocInfo::CODE_TARGET ||
          mode == RelocInfo::CODE_TARGET_CONTEXT);
   Counters* counters = isolate()->counters();
   switch (ic->kind()) {
     case Code::LOAD_IC:
       __ IncrementCounter(counters->named_load_full(), 1);
       break;
     case Code::KEYED_LOAD_IC:
       __ IncrementCounter(counters->keyed_load_full(), 1);
       break;
     case Code::STORE_IC:
       __ IncrementCounter(counters->named_store_full(), 1);
       break;
     case Code::KEYED_STORE_IC:
       __ IncrementCounter(counters->keyed_store_full(), 1);
     default:
       break;
   }
-  __ call(ic, mode);
+  __ call(ic, mode, ast_id);
 }
 
 
-void FullCodeGenerator::EmitCallIC(Handle<Code> ic, JumpPatchSite* patch_site) {
+void FullCodeGenerator::EmitCallIC(Handle<Code> ic,
+                                   JumpPatchSite* patch_site,
+                                   unsigned ast_id) {
   Counters* counters = isolate()->counters();
   switch (ic->kind()) {
     case Code::LOAD_IC:
       __ IncrementCounter(counters->named_load_full(), 1);
       break;
     case Code::KEYED_LOAD_IC:
       __ IncrementCounter(counters->keyed_load_full(), 1);
       break;
     case Code::STORE_IC:
       __ IncrementCounter(counters->named_store_full(), 1);
       break;
     case Code::KEYED_STORE_IC:
       __ IncrementCounter(counters->keyed_store_full(), 1);
     default:
       break;
   }
-  __ call(ic, RelocInfo::CODE_TARGET);
+  __ call(ic, RelocInfo::CODE_TARGET, ast_id);
   if (patch_site != NULL && patch_site->is_bound()) {
     patch_site->EmitPatchInfo();
   } else {
     __ nop();  // Signals no inlined code.
   }
 }
 
 
 void FullCodeGenerator::StoreToFrameField(int frame_offset, Register value) {
   ASSERT(IsAligned(frame_offset, kPointerSize));
@@ skipping 39 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64