From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../performance/26_numerics/complex_norm.cc | 74 ++++++++++++++++++++++ .../26_numerics/valarray_gslice_to_index.cc | 48 ++++++++++++++ 2 files changed, 122 insertions(+) create mode 100644 libstdc++-v3/testsuite/performance/26_numerics/complex_norm.cc create mode 100644 libstdc++-v3/testsuite/performance/26_numerics/valarray_gslice_to_index.cc (limited to 'libstdc++-v3/testsuite/performance/26_numerics') diff --git a/libstdc++-v3/testsuite/performance/26_numerics/complex_norm.cc b/libstdc++-v3/testsuite/performance/26_numerics/complex_norm.cc new file mode 100644 index 000000000..428959dc1 --- /dev/null +++ b/libstdc++-v3/testsuite/performance/26_numerics/complex_norm.cc @@ -0,0 +1,74 @@ +// Copyright (C) 2003, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library 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 3, or (at your option) +// any later version. + +// This library 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 this library; see the file COPYING3. If not see +// . + + +#include +#include + +// based on libstdc++/5730, use --fast-math +int main() +{ + using namespace std; + using namespace __gnu_test; + + time_counter time; + resource_counter resource; + const int iterations = 2000; + + typedef complex complex_type; + complex_type u[2048]; + + for (int i = 0; i < 2048; ++i) + u[i] = 1.0; + + start_counters(time, resource); + for (int i = 0; i < iterations; ++i) + { + complex_type * p = u; + for (int j = 0; j < 2048; ++j) + { + double u2 = norm(*p); + double t = u2 * 0.1; + *p *= complex_type(cos(t), sin(t)); + ++p; + } + } + stop_counters(time, resource); + report_performance(__FILE__, "norm", time, resource); + clear_counters(time, resource); + + start_counters(time, resource); + for (int i = 0; i < iterations; ++i) + { + complex_type * p = u; + for (int j = 0; j < 2048; ++j) + { + // Shouldn't be slower than the above. + double ur = real(*p); + double ui = imag(*p); + double u2 = ur * ur + ui * ui; + double t = u2 * 0.1; + *p *= complex_type(cos(t), sin(t)); + ++p; + } + } + stop_counters(time, resource); + report_performance(__FILE__, "", time, resource); + + return 0; +} + diff --git a/libstdc++-v3/testsuite/performance/26_numerics/valarray_gslice_to_index.cc b/libstdc++-v3/testsuite/performance/26_numerics/valarray_gslice_to_index.cc new file mode 100644 index 000000000..405d5c355 --- /dev/null +++ b/libstdc++-v3/testsuite/performance/26_numerics/valarray_gslice_to_index.cc @@ -0,0 +1,48 @@ +// Copyright (C) 2006, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library 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 3, or (at your option) +// any later version. + +// This library 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 this library; see the file COPYING3. If not see +// . + + +#include +#include + +int main() +{ + using namespace std; + using namespace __gnu_test; + + time_counter time; + resource_counter resource; + + valarray va(1000000); + + for (int i = 0; i < 1000000; ++i) + va[i] = i; + + size_t lengthvalues[] = { 10, 10, 10, 10, 10, 10 }; + size_t stridevalues[] = { 1, 1, 1, 1, 1, 1 }; + + valarray lengths(lengthvalues, 6); + valarray stride(stridevalues, 6); + + start_counters(time, resource); + for (int j = 0; j < 1000; ++j) + va[gslice(0, lengths, stride)]; + stop_counters(time, resource); + report_performance(__FILE__, "", time, resource); + + return 0; +} -- cgit v1.2.3