Date: Fri, 7 May 2021 11:30:08 -0400 From: Rich Felker <dalias@...c.org> To: Jon Chesterfield <jonathanchesterfield@...il.com> Cc: musl@...ts.openwall.com Subject: Re: Compiling to single llvm bc, working example? On Fri, May 07, 2021 at 03:41:17PM +0100, Jon Chesterfield wrote: > Hello musl, > > Clang has mixed support for compiling libc from C. A couple of years ago I > ran into pattern matching turning fmod into a call to itself and similar. I > can see malloc getting into fights with alias analysis as well. I'm not > confident ffreestanding is propagated in the IR. If it's not, that would be really bad. Do you know any way to test, or if there's documentation on this? It would be yet another data point for my recommendation against use of LTO. Rich
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