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src/cpu/sparc/vm/copy_sparc.hpp

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@@ -178,10 +178,13 @@
 #endif // _LP64
 }
 
 typedef void (*_zero_Fn)(HeapWord* to, size_t count);
 
+// Only used for heap objects, so align_object_offset.
+// All other platforms pd_fill_to_aligned_words simply calls pd_fill_to_words, don't
+// know why this one is different.
 static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
   assert(MinObjAlignmentInBytes >= BytesPerLong, "need alternate implementation");
 
   if (value == 0 && UseBlockZeroing &&
       (count > (size_t)(BlockZeroingLowLimit >> LogHeapWordSize))) {
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