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diff src/cpu/sparc/vm/copy_sparc.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 a61af66fc99e
children d1605aabd0a1
line wrap: on
line diff
--- a/src/cpu/sparc/vm/copy_sparc.hpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/src/cpu/sparc/vm/copy_sparc.hpp	Sun Apr 13 17:43:42 2008 -0400
@@ -137,24 +137,20 @@
 }
 
 static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
-#if 0
-  if (HeapWordsPerLong == 1 ||
-      (HeapWordsPerLong == 2 &&
-       mask_bits((uintptr_t)tohw, right_n_bits(LogBytesPerLong)) == 0 &&
-       ((count & 1) ? false : count >>= 1))) {
-    julong* to = (julong*)tohw;
-    julong  v  = ((julong)value << 32) | value;
-    while (count-- > 0) {
-      *to++ = v;
-    }
-  } else {
-#endif
-    juint* to = (juint*)tohw;
-    count *= HeapWordSize / BytesPerInt;
-    while (count-- > 0) {
-      *to++ = value;
-    }
-    //  }
+#ifdef _LP64
+  guarantee(mask_bits((uintptr_t)tohw, right_n_bits(LogBytesPerLong)) == 0,
+         "unaligned fill words");
+  julong* to = (julong*)tohw;
+  julong  v  = ((julong)value << 32) | value;
+  while (count-- > 0) {
+    *to++ = v;
+  }
+#else // _LP64
+  juint* to = (juint*)tohw;
+  while (count-- > 0) {
+    *to++ = value;
+  }
+#endif // _LP64
 }
 
 static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {