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wasm: use non-trapping conversion instructions when casting floats an…
…d doubles to ints and longs Fix #976
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66
tests/src/test/java/org/teavm/vm/NumericConversionTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /* | ||
| * Copyright 2024 Alexey Andreev. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.teavm.vm; | ||
|
|
||
| import static org.junit.Assert.assertEquals; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
| import org.teavm.junit.SkipPlatform; | ||
| import org.teavm.junit.TeaVMTestRunner; | ||
| import org.teavm.junit.TestPlatform; | ||
|
|
||
| @RunWith(TeaVMTestRunner.class) | ||
| public class NumericConversionTest { | ||
| @Test | ||
| @SkipPlatform({TestPlatform.JAVASCRIPT, TestPlatform.C}) | ||
| public void floatOverflow() { | ||
| assertEquals(2147483647, (int) (floatOne() * (1 << 30) * (1 << 3))); | ||
| assertEquals(2147483647, (int) (floatOne() * Float.POSITIVE_INFINITY)); | ||
| assertEquals(-2147483648, (int) (-floatOne() * (1 << 30) * (1 << 3))); | ||
| assertEquals(-2147483648, (int) (-floatOne() * Float.POSITIVE_INFINITY)); | ||
| assertEquals(0, (int) (floatOne() * Float.NaN)); | ||
|
|
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| assertEquals((1L << 63) - 1, (long) (floatOne() * (1L << 60) * (1 << 5))); | ||
| assertEquals((1L << 63) - 1, (long) (floatOne() * Float.POSITIVE_INFINITY)); | ||
| assertEquals(1L << 63, (long) (-floatOne() * (1L << 60) * (1 << 5))); | ||
| assertEquals(1L << 63, (long) (-floatOne() * Float.POSITIVE_INFINITY)); | ||
| assertEquals(0, (long) (floatOne() * Float.NaN)); | ||
| } | ||
|
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||
| @Test | ||
| @SkipPlatform({TestPlatform.JAVASCRIPT, TestPlatform.C}) | ||
| public void doubleOverflow() { | ||
| assertEquals(2147483647, (int) (doubleOne() * (1 << 30) * (1 << 3))); | ||
| assertEquals(2147483647, (int) (doubleOne() * Float.POSITIVE_INFINITY)); | ||
| assertEquals(-2147483648, (int) (-doubleOne() * (1 << 30) * (1 << 3))); | ||
| assertEquals(-2147483648, (int) (-doubleOne() * Float.POSITIVE_INFINITY)); | ||
| assertEquals(0, (int) (doubleOne() * Double.NaN)); | ||
|
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| assertEquals((1L << 63) - 1, (long) (doubleOne() * (1L << 60) * (1 << 5))); | ||
| assertEquals((1L << 63) - 1, (long) (doubleOne() * Double.POSITIVE_INFINITY)); | ||
| assertEquals(1L << 63, (long) (-doubleOne() * (1L << 60) * (1 << 5))); | ||
| assertEquals(1L << 63, (long) (-doubleOne() * Double.POSITIVE_INFINITY)); | ||
| assertEquals(0, (long) (doubleOne() * Double.NaN)); | ||
| } | ||
|
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| private float floatOne() { | ||
| return 1; | ||
| } | ||
|
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| private double doubleOne() { | ||
| return 1; | ||
| } | ||
| } |