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If you could create a single executable with a repro, and publish them somewhere (both the old llvm and new one which is slower), we could look at it. It's hard to say otherwise unless someone truly knows of a change. I'm interested in looking at this, because my experience has been opposite, compile times improved for my compiler in the past month. So I'm inclined to understand what

Hi I updated my clone of the LLVM github mirror today and I am finding that the JIT compilation is now 2-3 times slower. The last time I refreshed was maybe 2 weeks ago. Is there a known change that would explain this? This is on Windows 8.1 64-bit. I am using MCJIT. Thanks and Regards Dibyendu