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diff src/share/vm/c1/c1_Runtime1.cpp @ 2002:ac637b7220d1

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6985015: C1 needs to support compressed oops Summary: This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered. Reviewed-by: twisti, kvn, never, phh
author iveresov
date Tue, 30 Nov 2010 23:23:40 -0800
parents f95d63e2154a
children 06f017f7daa7 8012aa3ccede
line wrap: on
line diff
--- a/src/share/vm/c1/c1_Runtime1.cpp	Tue Nov 23 13:22:55 2010 -0800
+++ b/src/share/vm/c1/c1_Runtime1.cpp	Tue Nov 30 23:23:40 2010 -0800
@@ -1174,7 +1174,7 @@
     memmove(dst_addr, src_addr, length << l2es);
     return ac_ok;
   } else if (src->is_objArray() && dst->is_objArray()) {
-    if (UseCompressedOops) {  // will need for tiered
+    if (UseCompressedOops) {
       narrowOop *src_addr  = objArrayOop(src)->obj_at_addr<narrowOop>(src_pos);
       narrowOop *dst_addr  = objArrayOop(dst)->obj_at_addr<narrowOop>(dst_pos);
       return obj_arraycopy_work(src, src_addr, dst, dst_addr, length);
@@ -1210,10 +1210,11 @@
   assert(bs->has_write_ref_array_pre_opt(), "For pre-barrier as well.");
   if (UseCompressedOops) {
     bs->write_ref_array_pre((narrowOop*)dst, num);
+    Copy::conjoint_oops_atomic((narrowOop*) src, (narrowOop*) dst, num);
   } else {
     bs->write_ref_array_pre((oop*)dst, num);
+    Copy::conjoint_oops_atomic((oop*) src, (oop*) dst, num);
   }
-  Copy::conjoint_oops_atomic((oop*) src, (oop*) dst, num);
   bs->write_ref_array(dst, num);
 JRT_END