Change the order of evaluation of sub-expressions for keyed call...

src/x64/full-codegen-x64.cc

 // Copyright 2010 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 1721 matching lines @@
   EmitCallIC(ic, mode);
   // Restore context register.
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitKeyedCallWithIC(Call* expr,
                                             Expression* key,
                                             RelocInfo::Mode mode) {
-  // Code common for calls using the IC.
+  // Load the key.
+  VisitForAccumulatorValue(key);
+
+  // Place the key below the receiver to have a stack image common for calls
+  // using an IC (receiver followed by arguments).
+  __ pop(rcx);
+  __ push(rax);
+  __ push(rcx);
+
+  // Load the arguments.
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
   { PreserveStatementPositionScope scope(masm()->positions_recorder());
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
-    VisitForAccumulatorValue(key);
-    __ movq(rcx, rax);
   }
   // Record source position for debugger.
   SetSourcePosition(expr->position(), FORCED_POSITION);
   // Call the IC initialization code.
   InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
   Handle<Code> ic = StubCache::ComputeKeyedCallInitialize(arg_count, in_loop);
+  __ movq(rcx, Operand(rsp, (arg_count + 1) * kPointerSize));  // Key.
   EmitCallIC(ic, mode);
   // Restore context register.
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
-  context()->Plug(rax);
+  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();
   int arg_count = args->length();
   { PreserveStatementPositionScope scope(masm()->positions_recorder());
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
@@ skipping 1681 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64