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Hi, what is the recommended base configuration of SPEC2k and SPEC06 for clang/llvm? I got compilation error with eon when using gcc's flags (emit error on converting wchar* ..) -- there must be some portability flags I am missing. Thanks, David -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/...

Thanks David. Unfortunately many of us cannot use GPL v3 gcc so it's hard for us to investigate this. One question, can you tell if gcc is inlining significantly more than llvm? We have reports that this is one of the issue plaguing eon performance. There are also some relatively well known spec optimizations that we haven't implemented. e.g.

Hi, I have looked at the LLVM code generation quality using small test cases and in general it is better than I thought and in some cases better than gcc. However, there are still some gap in SPEC performance. I have not looked at the root cause of those gaps. Anyone who cares about LLVM performance need to take this seriously. For fair comparison, I used -fno-strict-aliasing in gcc to turn off