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The i8 type in the pointers doesn't matter a whole lot. There's a long term plan to remove the type from all pointers in llvm IR. Yes, clang will use memcpy for struct copies. You can see example IR here https://godbolt.org/g/8gQ18m. You'll see that the struct pointers are bitcasted to i8* before the call. ~Craig On Mon, Jan 29, 2018 at 11:12 PM, ma jun via llvm-dev < llvm-dev at

Hi all I'm new here, and I have some question about llvm.memcpy intrinsic. why does llvm.memcpy intrinsic only support i8* for first two arguments? and does clang will also transform struct copy into llvm.memcpy ? what format does IR looks like? Thanks ! Regards Jun -------------- next part -------------- An HTML attachment was scrubbed... URL:

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