Merge experimental/a64 to bleeding_edge.

tools/draw_instruction_graph.sh

+#!/bin/bash
+#
+# Copyright 2013 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# This script reads in CSV formatted instruction data, and draws a stacked
+# graph in png format.
+
+defaultfile=a64_inst.csv
+defaultout=a64_inst.png
+gnuplot=/usr/bin/gnuplot
+
+
+# File containing CSV instruction data from simulator.
+file=${1:-$defaultfile}
+
+# Output graph png file.
+out=${2:-$defaultout}
+
+# Check input file exists.
+if [ ! -e $file ]; then
+  echo "Input file not found: $file."
+  echo "Usage: draw_instruction_graph.sh <input csv> <output png>"
+  exit 1
+fi
+
+# Search for an error message, and if found, exit.
+error=`grep -m1 '# Error:' $file`
+if [ -n "$error" ]; then
+  echo "Error message in input file:"
+  echo " $error"
+  exit 2
+fi
+
+# Sample period - period over which numbers for each category of instructions is
+# counted.
+sp=`grep -m1 '# sample_period=' $file | cut -d= -f2`
+
+# Get number of counters in the CSV file.
+nc=`grep -m1 '# counters=' $file | cut -d= -f2`
+
+# Find the annotation arrows. They appear as comments in the CSV file, in the
+# format:
+#   # xx @ yyyyy
+# Where xx is a two character annotation identifier, and yyyyy is the
+# position in the executed instruction stream that generated the annotation.
+# Turn these locations into labelled arrows.
+arrows=`sed '/^[^#]/ d' $file | \
+        perl -pe "s/^# .. @ (\d+)/set arrow from \1, graph 0.9 to \1, $sp/"`;
+labels=`sed '/^[^#]/d' $file | \
+        sed -r 's/^# (..) @ (.+)/set label at \2, graph 0.9 "\1" \
+                center offset 0,0.5 font "FreeSans, 8"/'`;
+
+# Check for gnuplot, and warn if not available.
+if [ ! -e $gnuplot ]; then
+  echo "Can't find gnuplot at $gnuplot."
+  echo "Gnuplot version 4.6.3 or later required."
+  exit 3
+fi
+
+# Initialise gnuplot, and give it the data to draw.
+echo | $gnuplot <<EOF
+$arrows
+$labels
+MAXCOL=$nc
+set term png size 1920, 800 #ffffff
+set output '$out'
+set datafile separator ','
+set xtics font 'FreeSans, 10'
+set xlabel 'Instructions' font 'FreeSans, 10'
+set ytics font 'FreeSans, 10'
+set yrange [0:*]
+set key outside font 'FreeSans, 8'
+
+set style line 2 lc rgb '#800000'
+set style line 3 lc rgb '#d00000'
+set style line 4 lc rgb '#ff6000'
+set style line 5 lc rgb '#ffc000'
+set style line 6 lc rgb '#ffff00'
+
+set style line 7 lc rgb '#ff00ff'
+set style line 8 lc rgb '#ffc0ff'
+
+set style line 9 lc rgb '#004040'
+set style line 10 lc rgb '#008080'
+set style line 11 lc rgb '#40c0c0'
+set style line 12 lc rgb '#c0f0f0'
+
+set style line 13 lc rgb '#004000'
+set style line 14 lc rgb '#008000'
+set style line 15 lc rgb '#40c040'
+set style line 16 lc rgb '#c0f0c0'
+
+set style line 17 lc rgb '#2020f0'
+set style line 18 lc rgb '#6060f0'
+set style line 19 lc rgb '#a0a0f0'
+
+set style line 20 lc rgb '#000000'
+set style line 21 lc rgb '#ffffff'
+
+plot for [i=2:MAXCOL] '$file' using 1:(sum [col=i:MAXCOL] column(col)) \
+title columnheader(i) with filledcurve y1=0 ls i
+EOF
+
+
+