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On 27 March 2016 at 21:48, Michael Nicolella via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Can someone help me understand why this detail needs to be understood by the frontend, Many of the backends can do automatic demotion to sret, but the front-end still needs to be aware of the issues (particularly around unions, since whether demotion is necessary can depend on more than just

I'm new to using LLVM and I've started work on a compiler for a language that can interface with C. One thing that caught me off guard was returning a struct from a function by value. It seems that when calling a C function I need to emit llvm ir that, in the caller, emits an alloca for the returned structure, and the C function signature should return void and take a first argument with

...ty late on and a "%type *sret" > parameter better represents what will actually be happening later on. > > Cheers. > > Tim. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160328/01db01b7/attachment.html>