PPC: Fix "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 3130 matching lines @@
   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());
+    // Call the runtime to find the function to call (returned in r3) and
+    // the object holding it (returned in r4).
+    DCHECK(!context_register().is(r5));
+    __ mov(r5, Operand(callee->name()));
+    __ Push(context_register(), r5);
     __ CallRuntime(Runtime::kLoadLookupSlot, 2);
-    __ Push(rax);  // Function.
-    __ Push(rdx);  // Receiver.
+    __ Push(r3, r4);  // Function, 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);
+      __ b(&call);
       __ bind(&done);
       // Push function.
-      __ Push(rax);
+      __ push(r3);
       // 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);
+      __ LoadRoot(r4, Heap::kUndefinedValueRootIndex);
+      __ push(r4);
       __ bind(&call);
     }
   } else {
     VisitForStackValue(callee);
     // refEnv.WithBaseObject()
     __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
-    __ push(r5);
+    __ push(r5);  // Reserved receiver slot.
   }
 }
 
 
 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
@@ skipping 600 matching lines @@
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitArguments(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
-  // ArgumentsAccessStub expects the key in edx and the formal
+  // ArgumentsAccessStub expects the key in r4 and the formal
   // parameter count in r3.
   VisitForAccumulatorValue(args->at(0));
   __ mr(r4, r3);
   __ LoadSmiLiteral(r3, Smi::FromInt(info_->scope()->num_parameters()));
   ArgumentsAccessStub stub(isolate(), ArgumentsAccessStub::READ_ELEMENT);
   __ CallStub(&stub);
   context()->Plug(r3);
 }
 
 
@@ skipping 1763 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