6953058: G1: A bigapp crashes with SIGSEGV in compiled code
Summary: In C2's G1 post write barrier, the loads of the buffer and index fields from the DirtyCardQueue structure may be moved across a safepoint. Use the current value of "control" in the C2 IR to limit how far these loads can move.
Reviewed-by: never, iveresov, kvn
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// Implementation of all inlined member functions defined in oop.hpp
// We need a separate file to avoid circular references
// Separate this out to break dependency.
inline bool oopDesc::is_perm() const {
return Universe::heap()->is_in_permanent(this);
}
// Check for NULL also.
inline bool oopDesc::is_perm_or_null() const {
return this == NULL || is_perm();
}
inline bool oopDesc::is_scavengable() const {
return Universe::heap()->is_scavengable(this);
}