Hydrogen stubs for array constructors

src/ia32/macro-assembler-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
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@@ skipping 2513 matching lines @@
 
   // The top-of-stack (tos) is 7 if there is one item pushed.
   int tos = (8 - depth) % 8;
   const int kTopMask = 0x3800;
   push(eax);
   fwait();
   fnstsw_ax();
   and_(eax, kTopMask);
   shr(eax, 11);
   cmp(eax, Immediate(tos));
-  Label all_ok;
-  j(equal, &all_ok);
+  // These lines if you want to break right away
+  // Label all_ok;
+  // j(equal, &all_ok);
+  // int3();

[Hannes Payer (out of office), 2013/04/18 11:14:39]

is this debugging leftover code?

[mvstanton, 2013/04/18 13:39:26]

Yes and no, it is actually a bug because the j(equal..) instruction is
unnecessary on the left. It emits the same code as the Check(...) line just
below.

This is unrelated, I will pull it out of the CL.

+  // The check line otherwise
   Check(equal, "Unexpected FPU stack depth after instruction");
-  bind(&all_ok);
+  // bind(&all_ok);
   fnclex();
   pop(eax);
 }
 
 
 void MacroAssembler::Drop(int stack_elements) {
   if (stack_elements > 0) {
     add(esp, Immediate(stack_elements * kPointerSize));
   }
 }
@@ skipping 567 matching lines @@
   j(greater, &no_info_available);
   cmp(MemOperand(scratch_reg, -AllocationSiteInfo::kSize),
       Immediate(Handle<Map>(isolate()->heap()->allocation_site_info_map())));
   bind(&no_info_available);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32