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I watched Teresa’s talk on ThinLTO from last year’s CppCon, and it sounded like adding global variable information to the summaries was in the works, or at least in planning. Can someone (Teresa?) please share the current status? If it’s part of future plans, are there any specific proposals that can be picked up and worked on? Thanks! > On Apr 9, 2018, at 6:51 PM, via llvm-dev <llvm-dev

Hi, I’m working on setting up ThinLTO+CFI for a C application which uses a lot of function pointers. While functionally it appears stable, it’s performance is significantly degraded, to the tune of double digit percentage points compared to regular LTO+CFI. Looking into possible causes I see that under ThinLTO+CFI iCall type checks almost always generate jump table entries for indirect calls,

...gt; http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev > > -- Teresa Johnson | Software Engineer | tejohnson at google.com | 408-460-2413 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180417/e6e25f35/attachment.html>