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diff src/cpu/sparc/vm/assembler_sparc.cpp @ 124:b130b98db9cf

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6689060: Escape Analysis does not work with Compressed Oops Summary: 64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops) Reviewed-by: never, sgoldman
author kvn
date Wed, 23 Apr 2008 11:20:36 -0700
parents ba764ed4b6f2
children c436414a719e 6d172e3548cb 37f87013dfd8
line wrap: on
line diff
--- a/src/cpu/sparc/vm/assembler_sparc.cpp	Thu Apr 17 07:16:03 2008 -0700
+++ b/src/cpu/sparc/vm/assembler_sparc.cpp	Wed Apr 23 11:20:36 2008 -0700
@@ -3647,6 +3647,12 @@
   srlx(r, LogMinObjAlignmentInBytes, r);
 }
 
+void MacroAssembler::encode_heap_oop_not_null(Register src, Register dst) {
+  assert (UseCompressedOops, "must be compressed");
+  sub(src, G6_heapbase, dst);
+  srlx(dst, LogMinObjAlignmentInBytes, dst);
+}
+
 // Same algorithm as oops.inline.hpp decode_heap_oop.
 void  MacroAssembler::decode_heap_oop(Register src, Register dst) {
   assert (UseCompressedOops, "must be compressed");
@@ -3665,6 +3671,14 @@
   add(r, G6_heapbase, r);
 }
 
+void  MacroAssembler::decode_heap_oop_not_null(Register src, Register dst) {
+  // Do not add assert code to this unless you change vtableStubs_sparc.cpp
+  // pd_code_size_limit.
+  assert (UseCompressedOops, "must be compressed");
+  sllx(src, LogMinObjAlignmentInBytes, dst);
+  add(dst, G6_heapbase, dst);
+}
+
 void MacroAssembler::reinit_heapbase() {
   if (UseCompressedOops) {
     // call indirectly to solve generation ordering problem