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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e9dae06..4a8cf00 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 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.

diff --git a/gcc/params.def b/gcc/params.def
index a3e9831..d827121 100644 (file)
--- 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",