diff src/share/vm/code/scopeDesc.hpp @ 900:9987d9d5eb0e

6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot Summary: developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens Reviewed-by: kvn, never, jrose, twisti
author cfang
date Fri, 31 Jul 2009 17:12:33 -0700
parents a61af66fc99e
children 72088be4b386
line wrap: on
line diff
--- a/src/share/vm/code/scopeDesc.hpp	Fri Jul 31 12:04:07 2009 -0700
+++ b/src/share/vm/code/scopeDesc.hpp	Fri Jul 31 17:12:33 2009 -0700
@@ -39,7 +39,8 @@
     DebugInfoReadStream buffer(code, pc_desc->scope_decode_offset());
     int ignore_sender = buffer.read_int();
     _method           = methodOop(buffer.read_oop());
-    _bci              = buffer.read_bci();
+    bool dummy_reexecute; //only methodOop and bci are needed!
+    _bci              = buffer.read_bci_and_reexecute(dummy_reexecute);
   }
 
   methodOop method() { return _method; }
@@ -60,8 +61,9 @@
   ScopeDesc(const nmethod* code, int decode_offset);
 
   // JVM state
-  methodHandle method() const { return _method; }
-  int          bci()    const { return _bci;    }
+  methodHandle method()   const { return _method; }
+  int          bci()      const { return _bci;    }
+  bool should_reexecute() const { return _reexecute; }
 
   GrowableArray<ScopeValue*>*   locals();
   GrowableArray<ScopeValue*>*   expressions();
@@ -86,6 +88,7 @@
   // JVM state
   methodHandle  _method;
   int           _bci;
+  bool          _reexecute;
 
   // Decoding offsets
   int _decode_offset;