[LLVMdev] LLVM compile speed significantly slower than GCC (w/ test case) (original) (raw)
Chandler Carruth chandlerc at google.com
Thu Jul 19 16:03:37 PDT 2012
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I'm looking into why.
For me -O0 is about 4x faster w/ Clang, but -O2 is 2x slower. I'll update after a pleliminary analysis. Note that this is comparing against gcc 4.6.2. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120719/1cc2101b/attachment.html>
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