[PATCH] D91719: [RISCV] Add support for using -msave-restore with tailcalls

[Edward Jones via Phabricator via llvm-commits]

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The documentation changes to the riscv-toolchain-conventions repository have been merged now, (https://github.com/riscv-non-isa/riscv-toolchain-conventions/pull/10). In addition, there's a pending patch to implement this in GCC (https://gcc.gnu.org/pipermail/gcc-patches/2022-March/592467.html). I think this means there's nothing blocking this except a rebase.


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