#!/usr/bin/awk -f
# Script to analyze experimental results of our branch prediction heuristics
# Contributed by Jan Hubicka, SuSE Inc.
-# Copyright (C) 2001 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003 Free Software Foundation, Inc.
#
-# This file is part of GNU CC.
+# This file is part of GCC.
#
-# GNU CC is free software; you can redistribute it and/or modify
+# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
-# GNU CC is distributed in the hope that it will be useful,
+# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with GNU CC; see the file COPYING. If not, write to
+# along with GCC; see the file COPYING. If not, write to
# the Free Software Foundation, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
if (int(pred) < 50.0)
{
- hit = count - hit;
+ hit = count"-"hit;
}
counts[name]=counts[name] "+" count
hits[name]=hits[name] "+" hit
- if (float (hit) < (float (count) / 2))
- hit = "("count" - "hit")";
- phits[name]=phits[name] "+" hit
+ phits[name]=phits[name] "+(("hit")<"count"/2)*("count"-("hit"))+(("hit")>="count"/2)*("hit")"
#BC crashes on long strings. Irritating.
if (length(counts[name]) > 2000)
}
END {
# Heuristics called combined predicts just everything.
- maxcounts = longeval(counts["first match"])
- maxbranches = branches["first match"]
- max = names["first match"]
+ maxcounts = longeval(counts["combined"])
+ maxbranches = branches["combined"]
+ max = names["combined"]
printf("HEURISTICS BRANCHES (REL) HITRATE COVERAGE (REL)\n")
for (i = 0; i < nnames ; i++)
{