05207b098a
Removes the --ignition flag which is now on by default. Adds a --stress-fullcodegen flag which enables running all functions supported by fullcodegen to be compiled by fullcodegen. This will enable moving parser internalization later when we are not stressing fullcodegen or compiling asm.js functions. BUG=v8:5203, v8:6409, v8:6589 Change-Id: I7fa68016d4e734755434ec0b4e749ef65ffa7f4e Reviewed-on: https://chromium-review.googlesource.com/565569 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#46635}
88 lines
3.3 KiB
JavaScript
88 lines
3.3 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax --opt --noalways-opt --no-stress-fullcodegen
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function check(func, input, expected) {
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func(-1);
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func(-1);
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%OptimizeFunctionOnNextCall(func);
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assertEquals(expected, func(input));
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assertOptimized(func);
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}
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function mul_by_neg_1(a) { return a * -1; }
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function mul_by_0(a) { return a * 0; }
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function mul_by_1(a) { return a * 1; }
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function mul_by_2(a) { return a * 2; }
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check(mul_by_neg_1, 2, -2);
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check(mul_by_0, 2, 0);
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check(mul_by_1, 2, 2);
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check(mul_by_2, 2, 4);
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function limit_range(a) {
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// Limit the range of 'a' to enable no-overflow optimizations.
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return Math.max(Math.min(a | 0, 10), -10);
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}
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function mul_by_neg_127(a) { return limit_range(a) * -127; }
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function mul_by_neg_128(a) { return limit_range(a) * -128; }
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function mul_by_neg_129(a) { return limit_range(a) * -129; }
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function mul_by_1023(a) { return limit_range(a) * 1023; }
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function mul_by_1024(a) { return limit_range(a) * 1024; }
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function mul_by_1025(a) { return limit_range(a) * 1025; }
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check(mul_by_neg_127, 2, -254);
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check(mul_by_neg_128, 2, -256);
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check(mul_by_neg_129, 2, -258);
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check(mul_by_1023, 2, 2046);
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check(mul_by_1024, 2, 2048);
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check(mul_by_1025, 2, 2050);
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// Deopt on minus zero.
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assertEquals(-0, mul_by_neg_128(0));
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assertUnoptimized(mul_by_neg_128);
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assertEquals(-0, mul_by_2(-0));
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assertUnoptimized(mul_by_2);
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// Deopt on overflow.
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// 2^30 is a smi boundary on arm and ia32.
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var two_30 = 1 << 30;
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// 2^31 is a smi boundary on arm64 and x64.
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var two_31 = 2 * two_30;
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// TODO(rmcilroy): replace after r16361 with: if (%IsValidSmi(two_31)) {
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if (true) {
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assertEquals(two_31, mul_by_neg_1(-two_31));
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assertUnoptimized(mul_by_neg_1);
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} else {
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assertEquals(two_30, mul_by_neg_1(-two_30));
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assertUnoptimized(mul_by_neg_1);
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}
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