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8362207: Add more test cases for possible double-rounding in fma #4041

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8362207: Add more test cases for possible double-rounding in fma #4041

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9 changes: 5 additions & 4 deletions test/jdk/java/lang/Math/FusedMultiplyAddTests.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright (c) 2016, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
Expand All @@ -23,7 +23,7 @@

/*
* @test
* @bug 4851642 8253409
* @bug 4851642 8253409 8362207
* @summary Tests for Math.fusedMac and StrictMath.fusedMac.
* @build Tests
* @build FusedMultiplyAddTests
Expand Down Expand Up @@ -352,8 +352,9 @@ private static int testSimpleF() {
{1.0f+Math.ulp(1.0f), 1.0f+Math.ulp(1.0f), -1.0f-2.0f*Math.ulp(1.0f),
Math.ulp(1.0f)*Math.ulp(1.0f)},

// Double-rounding if done in double precision
{0x1.fffffep23f, 0x1.000004p28f, 0x1.fep5f, 0x1.000002p52f}
// Double-rounding if done in double precision and/or double fma
{0x1.fffffep23f, 0x1.000004p28f, 0x1.fep5f, 0x1.000002p52f},
{0x1.001p0f, 0x1.001p0f, 0x1p-100f, 0x1.002002p0f},
};

for (float[] testCase: testCases)
Expand Down