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diff src/cpu/sparc/vm/sparc.ad @ 12056:740e263c80c6

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8003424: Enable Class Data Sharing for CompressedOops 8016729: ObjectAlignmentInBytes=16 now forces the use of heap based compressed oops 8005933: The -Xshare:auto option is ignored for -server Summary: Move klass metaspace above the heap and support CDS with compressed klass ptrs. Reviewed-by: coleenp, kvn, mgerdin, tschatzl, stefank
author hseigel
date Thu, 15 Aug 2013 20:04:10 -0400
parents 46c544b8fbfc
children 7944aba7ba41 6a936747b569
line wrap: on
line diff
--- a/src/cpu/sparc/vm/sparc.ad	Wed Aug 14 15:12:00 2013 -0700
+++ b/src/cpu/sparc/vm/sparc.ad	Thu Aug 15 20:04:10 2013 -0400
@@ -559,10 +559,7 @@
     int klass_load_size;
     if (UseCompressedKlassPointers) {
       assert(Universe::heap() != NULL, "java heap should be initialized");
-      if (Universe::narrow_klass_base() == NULL)
-        klass_load_size = 2*BytesPerInstWord; // see MacroAssembler::load_klass()
-      else
-        klass_load_size = 3*BytesPerInstWord;
+      klass_load_size = MacroAssembler::instr_size_for_decode_klass_not_null() + 1*BytesPerInstWord;
     } else {
       klass_load_size = 1*BytesPerInstWord;
     }
@@ -1663,9 +1660,12 @@
   if (UseCompressedKlassPointers) {
     assert(Universe::heap() != NULL, "java heap should be initialized");
     st->print_cr("\tLDUW   [R_O0 + oopDesc::klass_offset_in_bytes],R_G5\t! Inline cache check - compressed klass");
-    st->print_cr("\tSLL    R_G5,3,R_G5");
-    if (Universe::narrow_klass_base() != NULL)
-      st->print_cr("\tADD    R_G5,R_G6_heap_base,R_G5");
+    st->print_cr("\tSET    Universe::narrow_klass_base,R_G6_heap_base");
+    if (Universe::narrow_klass_shift() != 0) {
+      st->print_cr("\tSLL    R_G5,3,R_G5");
+    }
+    st->print_cr("\tADD    R_G5,R_G6_heap_base,R_G5");
+    st->print_cr("\tSET    Universe::narrow_ptrs_base,R_G6_heap_base");
   } else {
     st->print_cr("\tLDX    [R_O0 + oopDesc::klass_offset_in_bytes],R_G5\t! Inline cache check");
   }
@@ -2563,10 +2563,7 @@
       int klass_load_size;
       if (UseCompressedKlassPointers) {
         assert(Universe::heap() != NULL, "java heap should be initialized");
-        if (Universe::narrow_klass_base() == NULL)
-          klass_load_size = 2*BytesPerInstWord;
-        else
-          klass_load_size = 3*BytesPerInstWord;
+        klass_load_size = MacroAssembler::instr_size_for_decode_klass_not_null() + 1*BytesPerInstWord;
       } else {
         klass_load_size = 1*BytesPerInstWord;
       }