Microsoft.CodeAnalysis.VisualBasic.UnitTests.Semantics.BinaryOperators.Test1 and Test5 are failing

[333fred]

Baselines changed.

Test 1:

Test 5:

[333fred]

#78120 is a test PR to print the bit values on all of our test platforms so we can pinpoint what changed

[333fred]

Investigation notes

Versions

Old behavior: .NET Framework 4.7.4126.0
New Behavior: .NET Framework 4.8.4110.0

Repro script

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe test.vb

Module M
    Public Sub Main()
        Dim US As UShort = 24
        Dim UI As UInteger = 26

        Dim test1ResultA = UI ^ US
        Dim test1ResultABits = BitConverter.DoubleToInt64Bits(test1ResultA)

        Dim De As Decimal = -9D
        Dim [Do] As Double = -11

        Dim test1ResultB = De ^ [Do]
        Dim test1ResultBBits = BitConverter.DoubleToInt64Bits(test1ResultB)

        Dim test5ResultA = 26UI ^ 24US
        Dim test5ResultABits = BitConverter.DoubleToInt64Bits(test5ResultA)
        
        Dim test5ResultB = -9D ^ -11.0R
        Dim test5ResultBBits = BitConverter.DoubleToInt64Bits(test5ResultB)

        System.Console.WriteLine("FrameworkDescription: " & System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription)

        System.Console.WriteLine("Test 1 Expr A: 26UI ^ 24US" & vbCrLf & _
                        "Test 1 Result A: {0}" & vbCrLf & _
                        "Test 1 Result A Bits: {1}" & vbCrLf & _
                        "Test 1 Expr B: -9D ^ -11R" & vbCrLf & _
                        "Test 1 Result B: {2}" & vbCrLf & _
                        "Test 1 Result B Bits: {3}" & vbCrLf & _
                        "Test 5 Expr A: 26UI ^ 24US" & vbCrLf & _
                        "Test 5 Result A: {4}" & vbCrLf & _
                        "Test 5 Result A Bits: {5}" & vbCrLf & _
                        "Test 5 Expr B: -9D ^ -11.0R" & vbCrLf & _
                        "Test 5 Result B: {6}" & vbCrLf & _
                        "Test 5 Result B Bits: {7}", _
                        test1ResultA, test1ResultABits, test1ResultB, test1ResultBBits, _
                        test5ResultA, test5ResultABits, test5ResultB, test5ResultBBits)
    End Sub
End Module

[jjonescz]

• Linking VB BinaryOperators tests failing on macOS 15 #77861 where very similar tests were also skipped