ryujit

While porting a 32bit managed application to 64bit I've observed a strange behavior by a Equals() override within a struct. You find the a repro at github . To reproduce the bug, you should compile the library with "optimize" flag on. This is default on the Release config. The consuming TestApp must be compiled without any optimization. Prefer 32 bit must be disabled to start as 64bit App. See notes on github! The library contains a struct that implements the IEquatable interface which is implemented with a simple line of code. public bool Equals(StructWithValue other) { return value.Equals

After recently upgrading to .net 4.6 we discovered a bug where RyuJit produces incorrect results, we were able to work around the issue for now by adding useLegacyJit enabled="true" to the app.config. How can I debug the machine code generated by the following? I created a new console project in VS 2015 RTM, set to Release, Any CPU, unchecked Prefer 32 bit, running with and without debugger attached produces the same result. using System; using System.Runtime.CompilerServices; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { Console.WriteLine(Calculate());

I'm testing what sort of speedup I can get from using SIMD instructions with RyuJIT and I'm seeing some disassembly instructions that I don't expect. I'm basing the code on this blog post from the RyuJIT team's Kevin Frei, and a related post here . Here's the function: static void AddPointwiseSimd(float[] a, float[] b) { int simdLength = Vector<float>.Count; int i = 0; for (i = 0; i < a.Length - simdLength; i += simdLength) { Vector<float> va = new Vector<float>(a, i); Vector<float> vb = new Vector<float>(b, i); va += vb; va.CopyTo(a, i); } } The section of disassembly I'm querying copies the

I've installed the new Jit compiler for .NET RyuJit, and setup the AltJit=* key in .NetFramework in regedit as described in the installation docs. http://blogs.msdn.com/b/dotnet/archive/2013/09/30/ryujit-the-next-generation-jit-compiler.aspx So how do I verify that RyuJit is actually beeing used? Hans Passant Setup a do-nothing project with Project + Properties: Build tab, untick the Prefer 32-bit checkbox Debug tab, tick the Enable native code debugging Debug + Step Into. The Output window shows DLLs getting loaded. This line is what you are looking for: 'ConsoleApplication1.exe': Loaded 'C: