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diff src/share/vm/runtime/globals.hpp @ 405:2649e5276dd7

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6532536: Optimize arraycopy stubs for Intel cpus Summary: Use SSE2 movdqu in arraycopy stubs on newest Intel's cpus Reviewed-by: rasbold
author kvn
date Tue, 14 Oct 2008 15:10:26 -0700
parents b4e0a161f551
children 67e8b4d06369
line wrap: on
line diff
--- a/src/share/vm/runtime/globals.hpp	Tue Oct 14 06:58:58 2008 -0700
+++ b/src/share/vm/runtime/globals.hpp	Tue Oct 14 15:10:26 2008 -0700
@@ -991,6 +991,12 @@
   product(bool, UseXmmI2F, false,                                           \
           "Use SSE2 CVTDQ2PS instruction to convert Integer to Float")      \
                                                                             \
+  product(bool, UseXMMForArrayCopy, false,                                  \
+          "Use SSE2 MOVQ instruction for Arraycopy")                        \
+                                                                            \
+  product(bool, UseUnalignedLoadStores, false,                              \
+          "Use SSE2 MOVDQU instruction for Arraycopy")                      \
+                                                                            \
   product(intx, FieldsAllocationStyle, 1,                                   \
           "0 - type based with oops first, 1 - with oops last")             \
                                                                             \