search for: __builtin_assumes

...again lost after instcombine. 2) what if the kept assumes are not leveraged later at all? These assumes bump up values' refcounts and could potentially hurt optimizations. This looks like a problem for adding @llvm.assume in general. Maybe users should be aware of these trade-offs when adding __builtin_assumes in their source code. Thoughts? Thanks, Jingyue -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150609/33d30f0e/attachment.html>