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Unified Diff: tools/generate-trig-table.py

Issue 448643002: Reland "Implement trigonometric functions using a fdlibm port." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: fix windows build and gc mole Created 6 years, 4 months ago
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Index: tools/generate-trig-table.py
diff --git a/tools/generate-trig-table.py b/tools/generate-trig-table.py
deleted file mode 100644
index 0a4fe2861831cce741874d4379cac5f854ee817b..0000000000000000000000000000000000000000
--- a/tools/generate-trig-table.py
+++ /dev/null
@@ -1,83 +0,0 @@
-#!/usr/bin/env python
-#
-# 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 is a utility for populating the lookup table for the
-# approximation of trigonometric functions.
-
-import sys, math
-
-SAMPLES = 1800
-
-TEMPLATE = """\
-// Copyright 2013 Google Inc. All Rights Reserved.
-
-// This file was generated from a python script.
-
-#include "src/v8.h"
-#include "src/trig-table.h"
-
-namespace v8 {
-namespace internal {
-
- const double TrigonometricLookupTable::kSinTable[] =
- { %(sine_table)s };
- const double TrigonometricLookupTable::kCosXIntervalTable[] =
- { %(cosine_table)s };
- const int TrigonometricLookupTable::kSamples = %(samples)i;
- const int TrigonometricLookupTable::kTableSize = %(table_size)i;
- const double TrigonometricLookupTable::kSamplesOverPiHalf =
- %(samples_over_pi_half)s;
-
-} } // v8::internal
-"""
-
-def main():
- pi_half = math.pi / 2
- interval = pi_half / SAMPLES
- sin = []
- cos_times_interval = []
- table_size = SAMPLES + 2
-
- for i in range(0, table_size):
- sample = i * interval
- sin.append(repr(math.sin(sample)))
- cos_times_interval.append(repr(math.cos(sample) * interval))
-
- output_file = sys.argv[1]
- output = open(str(output_file), "w")
- output.write(TEMPLATE % {
- 'sine_table': ','.join(sin),
- 'cosine_table': ','.join(cos_times_interval),
- 'samples': SAMPLES,
- 'table_size': table_size,
- 'samples_over_pi_half': repr(SAMPLES / pi_half)
- })
-
-if __name__ == "__main__":
- main()
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