Deoptimization returns different versions of code when R2R is used

[mikelle-rogers]

Description

Stepping into a R2R method while debugging for the first time that does not result in a deoptimized method.

Reproduction Steps

using System.Runtime.CompilerServices;

class Program
{
    [MethodImpl(MethodImplOptions.AggressiveOptimization)]
    static void Main()
    {
        Console.Write(5);
        Console.Write(5);
    }
}

When using a release runtime, step in 4 times, then out 1, then in 2 times

Expected behavior

Should be in the WriteSpan method.

Actual behavior

Ends up in the Flush method instead of the WriteSpan method.

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

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Issue Details

---

Description

Stepping into a R2R method while debugging for the first time that does not result in a deoptimized method.

Reproduction Steps

using System.Runtime.CompilerServices;

class Program
{
    [MethodImpl(MethodImplOptions.AggressiveOptimization)]
    static void Main()
    {
        Console.Write(5);
        Console.Write(5);
    }
}

When using a release runtime, step in 4 times, then out 1, then in 2 times

Expected behavior

Should be in the WriteSpan method.

Actual behavior

Ends up in the Flush method instead of the WriteSpan method.

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

Author:	mikelle-rogers
Assignees:	mikelle-rogers
Labels:	area-Diagnostics-coreclr, untriaged, needs-area-label
Milestone:	-

[tommcdon]

Fixed via #92665