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...suggestions, would be helpful. Thanks, -- Varun Agrawal PhD Student Computer Science, Stony Brook University http://compas.cs.stonybrook.edu/~vagrawal/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131011/449ec587/attachment.html>

Hi, I am using the LLVM JIT infrastructure (MCJIT). I wanted to see if there are any performance gains as the compiler can detect the target CPU at runtime. But, I didn't see any improvement (I compile with -no-mmx and -no-sse). I then tried an experiment, where I compiled the program with clang-3.3, with and without specifying the target cpu as "corei7". I was shocked to see that