re PR tree-optimization/49365 (436.cactusADM performance regression)

2011-06-27 Richard Guenther <rguenther@suse.de> PR tree-optimization/49365 * params.def (min-insn-to-prefetch-ratio): Reduce from 10 to 9. From-SVN: r175474

re PR tree-optimization/49365 (436.cactusADM performance regression)
2011-06-27 Richard Guenther <rguenther@suse.de> PR tree-optimization/49365 * params.def (min-insn-to-prefetch-ratio): Reduce from 10 to 9. From-SVN: r175474
fe4cd14b · Richard Guenther · Richard Biener · afc3f22f · fe4cd14b · fe4cd14b
Commit fe4cd14b authored Jun 27, 2011 by Richard Guenther Committed by Richard Biener Jun 27, 2011
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gcc/ChangeLog
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gcc/params.def
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2011-06-27  Richard Guenther  <rguenther@suse.de>

+	PR tree-optimization/49365
+	* params.def (min-insn-to-prefetch-ratio): Reduce from 10 to 9.
+
+2011-06-27  Richard Guenther  <rguenther@suse.de>
+
 	PR tree-optimization/49169
 	* fold-const.c (get_pointer_modulus_and_residue): Don't rely on
 	the alignment of function decls.

--- a/gcc/params.def
+++ b/gcc/params.def
@@ -825,7 +825,7 @@ DEFPARAM (PARAM_MIN_INSN_TO_PREFETCH_RATIO,
 	  "min-insn-to-prefetch-ratio",
 	  "Min. ratio of insns to prefetches to enable prefetching for "
          "a loop with an unknown trip count",
-	  10, 0, 0)
+	  9, 0, 0)

 DEFPARAM (PARAM_PREFETCH_MIN_INSN_TO_MEM_RATIO,
 	  "prefetch-min-insn-to-mem-ratio",