Mercurial > hg > graal-jvmci-8

diff src/cpu/sparc/vm/stubGenerator_sparc.cpp @ 3961:a92cdbac8b9e

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7081933: Use zeroing elimination optimization for large array Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it. Reviewed-by: twisti
author kvn
date Mon, 26 Sep 2011 10:24:05 -0700
parents c565834fb592
children 04b9a2566eec dca455dea3a7 069ab3f976d3
line wrap: on
line diff
--- a/src/cpu/sparc/vm/stubGenerator_sparc.cpp	Sun Sep 25 16:03:29 2011 -0700
+++ b/src/cpu/sparc/vm/stubGenerator_sparc.cpp	Mon Sep 26 10:24:05 2011 -0700
@@ -2359,10 +2359,10 @@
     for (int off = 0; off < 64; off += 16) {
       if (use_prefetch && (off & 31) == 0) {
         if (ArraycopySrcPrefetchDistance > 0) {
-          __ prefetch(from, ArraycopySrcPrefetchDistance, Assembler::severalReads);
+          __ prefetch(from, ArraycopySrcPrefetchDistance+off, Assembler::severalReads);
         }
         if (ArraycopyDstPrefetchDistance > 0) {
-          __ prefetch(to, ArraycopyDstPrefetchDistance, Assembler::severalWritesAndPossiblyReads);
+          __ prefetch(to, ArraycopyDstPrefetchDistance+off, Assembler::severalWritesAndPossiblyReads);
         }
       }
       __ ldx(from,  off+0, O4);