Mercurial > hg > graal-compiler
diff src/share/vm/gc_interface/collectedHeap.hpp @ 360:5d254928c888
Merge
author | ysr |
---|---|
date | Wed, 27 Aug 2008 11:20:46 -0700 |
parents | 1ee8caae33af |
children | 7d7a7c599c17 |
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--- a/src/share/vm/gc_interface/collectedHeap.hpp Wed Aug 27 10:56:33 2008 -0700 +++ b/src/share/vm/gc_interface/collectedHeap.hpp Wed Aug 27 11:20:46 2008 -0700 @@ -364,10 +364,8 @@ // Can a compiler initialize a new object without store barriers? // This permission only extends from the creation of a new object // via a TLAB up to the first subsequent safepoint. - virtual bool can_elide_tlab_store_barriers() const { - guarantee(kind() < CollectedHeap::G1CollectedHeap, "else change or refactor this"); - return true; - } + virtual bool can_elide_tlab_store_barriers() const = 0; + // If a compiler is eliding store barriers for TLAB-allocated objects, // there is probably a corresponding slow path which can produce // an object allocated anywhere. The compiler's runtime support @@ -379,12 +377,10 @@ // Can a compiler elide a store barrier when it writes // a permanent oop into the heap? Applies when the compiler // is storing x to the heap, where x->is_perm() is true. - virtual bool can_elide_permanent_oop_store_barriers() const; + virtual bool can_elide_permanent_oop_store_barriers() const = 0; // Does this heap support heap inspection (+PrintClassHistogram?) - virtual bool supports_heap_inspection() const { - return false; // Until RFE 5023697 is implemented - } + virtual bool supports_heap_inspection() const = 0; // Perform a collection of the heap; intended for use in implementing // "System.gc". This probably implies as full a collection as the