Version 3.25.28.5 (merged r20357)

src/x64/full-codegen-x64.cc

 // Copyright 2012 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 89 matching lines @@
 #endif
 };
 
 
 static void EmitStackCheck(MacroAssembler* masm_,
                              int pointers = 0,
                              Register scratch = rsp) {
     Isolate* isolate = masm_->isolate();
     Label ok;
     ASSERT(scratch.is(rsp) == (pointers == 0));
+    Heap::RootListIndex index;
     if (pointers != 0) {
       __ movq(scratch, rsp);
       __ subq(scratch, Immediate(pointers * kPointerSize));
+      index = Heap::kRealStackLimitRootIndex;
+    } else {
+      index = Heap::kStackLimitRootIndex;
     }
-    __ CompareRoot(scratch, Heap::kStackLimitRootIndex);
+    __ CompareRoot(scratch, index);
     __ j(above_equal, &ok, Label::kNear);
     __ call(isolate->builtins()->StackCheck(), RelocInfo::CODE_TARGET);
     __ bind(&ok);
 }
 
 
 // Generate code for a JS function.  On entry to the function the receiver
 // and arguments have been pushed on the stack left to right, with the
 // return address on top of them.  The actual argument count matches the
 // formal parameter count expected by the function.
@@ skipping 4807 matching lines @@
   ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64