Implement code generation for conditional expressions and regexp...

src/x64/virtual-frame-x64.cc

 // Copyright 2009 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 839 matching lines @@
   // name slot (but it does drop the rest).
   InLoopFlag in_loop = loop_nesting > 0 ? IN_LOOP : NOT_IN_LOOP;
   Handle<Code> ic = cgen()->ComputeCallInitialize(arg_count, in_loop);
   // Spill args, receiver, and function.  The call will drop args and
   // receiver.
   PrepareForCall(arg_count + 2, arg_count + 1);
   return RawCallCodeObject(ic, mode);
 }
 
 
+Result VirtualFrame::CallStoreIC() {
+  // Name, value, and receiver are on top of the frame.  The IC
+  // expects name in ecx, value in eax, and receiver on the stack.  It

[William Hesse, 2009/06/22 19:14:23]

rcx, value in rax, 

[Mads Ager (chromium), 2009/06/22 19:25:00]

Done.

+  // does not drop the receiver.
+  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize));
+  Result name = Pop();
+  Result value = Pop();
+  PrepareForCall(1, 0);  // One stack arg, not callee-dropped.
+
+  if (value.is_register() && value.reg().is(rcx)) {
+    if (name.is_register() && name.reg().is(rax)) {
+      // Wrong registers.
+      __ xchg(rax, rcx);
+    } else {
+      // Register eax is free for value, which frees ecx for name.

[William Hesse, 2009/06/22 19:14:23]

Register rax ... rcx

[Mads Ager (chromium), 2009/06/22 19:25:00]

Done.

+      value.ToRegister(rax);
+      name.ToRegister(rcx);
+    }
+  } else {
+    // Register ecx is free for name, which guarantees eax is free for

[William Hesse, 2009/06/22 19:14:23]

rcx ... rax

[Mads Ager (chromium), 2009/06/22 19:25:00]

Done.

+    // value.
+    name.ToRegister(rcx);
+    value.ToRegister(rax);
+  }
+
+  name.Unuse();
+  value.Unuse();
+  return RawCallCodeObject(ic, RelocInfo::CODE_TARGET);
+}
 
 
 #undef __
 
 } }  // namespace v8::internal