#!/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)
+# the Free Software Foundation; either version 3, 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
-# the Free Software Foundation, 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
+# along with GCC; see the file COPYING. If not, write to
+# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+# Boston, MA 02110-1301, USA.
#
#
# This script is used to calculate two basic properties of the branch prediction
# Step 1: Compile and profile your program. You need to use -fprofile-arcs
# flag to get the profiles
# Step 2: Generate log files. The information about given heuristics are
-# saved into *.life dumps. You need to pass the -df switch to the compiler as well
+# saved into *.bp dumps. You need to pass the -db switch to the compiler as well
# as -fbranch-probabilities to get the results of profiling noted in the dumps.
# Ensure that there are no "Arc profiling: some edge counts were bad." warnings.
# Step 3: Run this script to concatenate all *.life files:
maxcounts = longeval(counts["combined"])
maxbranches = branches["combined"]
max = names["combined"]
- printf("HEURISTICS BRANCHES (REL) HITRATE COVERAGE (REL)\n")
+ printf("HEURISTICS BRANCHES (REL) HITRATE COVERAGE (REL)\n")
for (i = 0; i < nnames ; i++)
{
name = names[i]
counts[name] = longeval(counts[name])
- printf ("%-27s %8i %5.1f%% %6s%%/%6s%% %12s %5.1f%%\n",
+ printf ("%-26s %8i %5.1f%% %6s%% / %6s%% %12s %5.1f%%\n",
name,
branches[name], branches[name] * 100 / maxbranches,
longeval("("hits[name]") * 100 /(" counts[name]"-0.00001)"),