[llvm-dev] Tail calls and portability
Demi Obenour via llvm-dev
llvm-dev at lists.llvm.org
Wed Jan 4 19:07:34 PST 2017
I have been working on adding proper tail (via `become`) to rustc. I was
able to make them work (some parts of the type checker aren't implemented
yet). However, I ran into an LLVM-related problem.
LLVM claims to support proper tail calls when fastcc is used — but only on
i386, x86-64 and PowerPC. Is this accurate? Will proper tail calls be
supported on WebAssembly? Are they supported on ARM? AArch64? Other
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