[all-commits] [llvm/llvm-project] ade336: [codegen][riscv] Emit CFI directives when using sh...

[Paul Kirth via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ade336d6e14140134728b9991be8e4e68d6205ea
      https://github.com/llvm/llvm-project/commit/ade336d6e14140134728b9991be8e4e68d6205ea
  Author: Paul Kirth <paulkirth at google.com>
  Date:   2023-03-15 (Wed, 15 Mar 2023)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
    M llvm/test/CodeGen/RISCV/shadowcallstack.ll

  Log Message:
  -----------
  [codegen][riscv] Emit CFI directives when using shadow call stack

Currently we don't emit any CFI instructions for the SCS register when
enabling SCS on RISCV. This causes problems when unwinding, since the
SCS register isn't being handled properly.

Reviewed By: mcgrathr

Differential Revision: https://reviews.llvm.org/D145205