Robert Nystrom
2034061433
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Srujan Gaddam <srujzs@google.com>
46 lines
1.3 KiB
Dart
46 lines
1.3 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
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import 'package:expect/expect.dart';
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trunc(x) => x & 0xFFFFFFFF;
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f(t, x) => t(x) + 1;
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g(t, x) => t(x + 1);
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// Foo should be entirely replaced by Uint32 operations. Running with
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// --trace-integer-ir-selection should result in:
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// CheckStackOverflow:4()
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// v22 <- UnboxUint32:14(v2)
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// v24 <- UnboxUint32:14(v3)
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// v6 <- BinaryUint32Op:14(+, v22 , v24 )
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// v26 <- UnboxUint32:22(v4)
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// v8 <- BinaryUint32Op:22(+, v6 , v26 )
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// v28 <- UnboxUint32:30(v5)
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// v10 <- BinaryUint32Op:30(+, v8 , v28 )
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// v30 <- UnboxUint32:14(v21)
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// v19 <- BinaryUint32Op:14(&, v10 , v30 )
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// v32 <- BoxUint32:90(v19 )
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// Return:38(v32 )
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foo(a, b, c, i) {
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return trunc(a + b + c + i);
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}
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main() {
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for (var i = 0; i < 20000; i++) {
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Expect.equals(0x100000000, f(trunc, 0xFFFFFFFF));
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Expect.equals(0x0, g(trunc, 0xFFFFFFFF));
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}
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var a = 0xFFFFFFFF;
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var b = 0xCCCCCCCC;
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var c = 0x33333335;
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for (var i = 0; i < 20000; i++) {
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Expect.equals(i, foo(a, b, c, i));
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}
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}
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