Reapply "Fix receiver when calling eval() bound by with scope"

src/ppc/full-codegen-ppc.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 3117 matching lines @@
   __ beq(&uninitialized_this);
   __ mov(r4, Operand(this_var->name()));
   __ push(r4);
   __ CallRuntime(Runtime::kThrowReferenceError, 1);
   __ bind(&uninitialized_this);
 
   EmitVariableAssignment(this_var, Token::INIT_CONST, slot);
 }
 
 
+// See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls.
+void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) {
+  VariableProxy* callee = expr->expression()->AsVariableProxy();
+  if (callee->var()->IsLookupSlot()) {
+    Label slow, done;
+    SetSourcePosition(callee->position());
+    {
+      PreservePositionScope scope(masm()->positions_recorder());
+      // Generate code for loading from variables potentially shadowed by
+      // eval-introduced variables.
+      EmitDynamicLookupFastCase(callee, NOT_INSIDE_TYPEOF, &slow, &done);
+    }
+    __ bind(&slow);
+    // Call the runtime to find the function to call (returned in rax) and
+    // the object holding it (returned in rdx).
+    __ Push(context_register());
+    __ Push(callee->name());
+    __ CallRuntime(Runtime::kLoadLookupSlot, 2);
+    __ Push(rax);  // Function.
+    __ Push(rdx);  // Receiver.
+    PrepareForBailoutForId(expr->LookupId(), NO_REGISTERS);
+
+    // If fast case code has been generated, emit code to push the function
+    // and receiver and have the slow path jump around this code.
+    if (done.is_linked()) {
+      Label call;
+      __ jmp(&call, Label::kNear);
+      __ bind(&done);
+      // Push function.
+      __ Push(rax);
+      // Pass undefined as the receiver, which is the WithBaseObject of a
+      // non-object environment record.  If the callee is sloppy, it will patch
+      // it up to be the global receiver.
+      __ PushRoot(Heap::kUndefinedValueRootIndex);
+      __ bind(&call);
+    }
+  } else {
+    VisitForStackValue(callee);
+    // refEnv.WithBaseObject()
+    __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
+    __ push(r5);
+  }
+}
+
+
 void FullCodeGenerator::VisitCall(Call* expr) {
 #ifdef DEBUG
   // We want to verify that RecordJSReturnSite gets called on all paths
   // through this function.  Avoid early returns.
   expr->return_is_recorded_ = false;
 #endif
 
   Comment cmnt(masm_, "[ Call");
   Expression* callee = expr->expression();
   Call::CallType call_type = expr->GetCallType(isolate());
 
   if (call_type == Call::POSSIBLY_EVAL_CALL) {
     // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval
     // to resolve the function we need to call.  Then we call the resolved
     // function using the given arguments.
     ZoneList<Expression*>* args = expr->arguments();
     int arg_count = args->length();
 
     {
       PreservePositionScope pos_scope(masm()->positions_recorder());
-      VisitForStackValue(callee);
-      __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
-      __ push(r5);  // Reserved receiver slot.
+      PushCalleeAndWithBaseObject(expr);
 
       // Push the arguments.
       for (int i = 0; i < arg_count; i++) {
         VisitForStackValue(args->at(i));
       }
 
       // Push a copy of the function (found below the arguments) and
       // resolve eval.
       __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
       __ push(r4);
       EmitResolvePossiblyDirectEval(arg_count);
 
       // Touch up the stack with the resolved function.
       __ StoreP(r3, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
 
-      PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS);
+      PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
     }
 
     // Record source position for debugger.
     SetSourcePosition(expr->position());
     CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
     __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
     __ CallStub(&stub);
     RecordJSReturnSite(expr);
     // Restore context register.
     __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
     context()->DropAndPlug(1, r3);
   } else if (call_type == Call::GLOBAL_CALL) {
     EmitCallWithLoadIC(expr);
 
   } else if (call_type == Call::LOOKUP_SLOT_CALL) {
     // Call to a lookup slot (dynamically introduced variable).
-    VariableProxy* proxy = callee->AsVariableProxy();
-    Label slow, done;
-
-    {
-      PreservePositionScope scope(masm()->positions_recorder());
-      // Generate code for loading from variables potentially shadowed
-      // by eval-introduced variables.
-      EmitDynamicLookupFastCase(proxy, NOT_INSIDE_TYPEOF, &slow, &done);
-    }
-
-    __ bind(&slow);
-    // Call the runtime to find the function to call (returned in r3)
-    // and the object holding it (returned in edx).
-    DCHECK(!context_register().is(r5));
-    __ mov(r5, Operand(proxy->name()));
-    __ Push(context_register(), r5);
-    __ CallRuntime(Runtime::kLoadLookupSlot, 2);
-    __ Push(r3, r4);  // Function, receiver.
-    PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS);
-
-    // If fast case code has been generated, emit code to push the
-    // function and receiver and have the slow path jump around this
-    // code.
-    if (done.is_linked()) {
-      Label call;
-      __ b(&call);
-      __ bind(&done);
-      // Push function.
-      __ push(r3);
-      // The receiver is implicitly the global receiver. Indicate this
-      // by passing the hole to the call function stub.
-      __ LoadRoot(r4, Heap::kUndefinedValueRootIndex);
-      __ push(r4);
-      __ bind(&call);
-    }
-
-    // The receiver is either the global receiver or an object found
-    // by LoadContextSlot.
+    PushCalleeAndWithBaseObject(expr);
     EmitCall(expr);
   } else if (call_type == Call::PROPERTY_CALL) {
     Property* property = callee->AsProperty();
     bool is_named_call = property->key()->IsPropertyName();
     if (property->IsSuperAccess()) {
       if (is_named_call) {
         EmitSuperCallWithLoadIC(expr);
       } else {
         EmitKeyedSuperCallWithLoadIC(expr);
       }
@@ skipping 2326 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC