[llvm-dev] llvm.memcpy for struct copy

[ma jun via llvm-dev]

tks

Regards
Jun

2018-02-02 2:09 GMT+08:00 Matthias Braun <mbraun at apple.com>:

> There's no need for anything else, you can bitcast any struct pointer to
> an i8 pointer (which is free/needs no instructions in all the targets I
> know of).
>
> - Matthias
>
> On Jan 29, 2018, at 11:06 PM, ma jun via llvm-dev <llvm-dev at lists.llvm.org>
> wrote:
>
> Hi all
>      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
>
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