Mercurial > hg > graal-compiler

diff src/share/vm/runtime/globals.hpp @ 113:ba764ed4b6f2

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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author coleenp
date Sun, 13 Apr 2008 17:43:42 -0400
parents 9f4457a14b58
children 018d5b58dd4f
line wrap: on
line diff
--- a/src/share/vm/runtime/globals.hpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/src/share/vm/runtime/globals.hpp	Sun Apr 13 17:43:42 2008 -0400
@@ -237,7 +237,6 @@
 #define falseInTiered true
 #endif
 
-
 // develop flags are settable / visible only during development and are constant in the PRODUCT version
 // product flags are always settable / visible
 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
@@ -286,7 +285,11 @@
 // Note that when there is a need to support develop flags to be writeable,
 // it can be done in the same way as product_rw.
 
-#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct, manageable, product_rw) \
+#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct, manageable, product_rw, lp64_product) \
+                                                                            \
+  lp64_product(bool, UseCompressedOops, false,                              \
+            "Use 32-bit object references in 64-bit VM. "                   \
+            "lp64_product means flag is always constant in 32 bit VM")      \
                                                                             \
   /* UseMembar is theoretically a temp flag used for memory barrier         \
    * removal testing.  It was supposed to be removed before FCS but has     \
@@ -3209,6 +3212,12 @@
 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc)      extern "C" type name;
 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)  extern "C" type name;
 #endif
+// Special LP64 flags, product only needed for now.
+#ifdef _LP64
+#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
+#else
+#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
+#endif // _LP64
 
 // Implementation macros
 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc)   type name = value;
@@ -3225,7 +3234,12 @@
 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc)     type name = pd_##name;
 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
 #endif
+#ifdef _LP64
+#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc)   type name = value;
+#else
+#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
+#endif // _LP64
 
-RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG)
+RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
 
 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)