Mercurial > hg > truffle
diff src/share/vm/ci/ciField.hpp @ 12190:edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
Reviewed-by: rbackman, twisti, kvn
Contributed-by: john.r.rose@oracle.com, vladimir.x.ivanov@oracle.com
author | vlivanov |
---|---|
date | Tue, 10 Sep 2013 14:51:48 -0700 |
parents | e778c29768e6 |
children | b2e698d2276c |
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--- a/src/share/vm/ci/ciField.hpp Mon Sep 09 19:53:28 2013 +0200 +++ b/src/share/vm/ci/ciField.hpp Tue Sep 10 14:51:48 2013 -0700 @@ -139,7 +139,10 @@ // non-constant fields. These are java.lang.System.in // and java.lang.System.out. Abomination. // - // Note: the check for case 4 is not yet implemented. + // A field is also considered constant if it is marked @Stable + // and is non-null (or non-zero, if a primitive). + // For non-static fields, the null/zero check must be + // arranged by the user, as constant_value().is_null_or_zero(). bool is_constant() { return _is_constant; } // Get the constant value of this field. @@ -173,6 +176,7 @@ bool is_protected () { return flags().is_protected(); } bool is_static () { return flags().is_static(); } bool is_final () { return flags().is_final(); } + bool is_stable () { return flags().is_stable(); } bool is_volatile () { return flags().is_volatile(); } bool is_transient () { return flags().is_transient(); }