[PATCH] D62686: [RISCV] Add support for save/restore of callee-saved registers via libcalls

[Lewis Revill via Phabricator via cfe-commits]

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In D62686#1675347 <https://reviews.llvm.org/D62686#1675347>, @lenary wrote:

> We discussed this in the RISC-V meeting on 19 Sept 2019. @apazos says there are some SPEC failures in both 2006 and 2017, which would be good to triage.


I've uncovered some execution failures in our annotated GCC testsuite as well, so I will look into those as a starting point.


Repository:
  rG LLVM Github Monorepo

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