[all-commits] [llvm/llvm-project] 59037c: [RISCV] Add Zicfiss support to the shadow call sta...

[Yeting Kuo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 59037c0975de51ae29a5f9bd4260131ba3b7c22a
      https://github.com/llvm/llvm-project/commit/59037c0975de51ae29a5f9bd4260131ba3b7c22a
  Author: Yeting Kuo <46629943+yetingk at users.noreply.github.com>
  Date:   2024-02-10 (Sat, 10 Feb 2024)

  Changed paths:
    M clang/docs/ShadowCallStack.rst
    M clang/include/clang/Driver/Options.td
    M clang/test/Driver/riscv-features.c
    M llvm/lib/Target/RISCV/RISCVFeatures.td
    M llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
    M llvm/test/CodeGen/RISCV/shadowcallstack.ll

  Log Message:
  -----------
  [RISCV] Add Zicfiss support to the shadow call stack implementation. (#68075)

This patch enable hardware shadow stack with `Zicifss` and
`mno-forced-sw-shadow-stack`. New feature forced-sw-shadow-stack
disables hardware shadow stack even when `Zicfiss` enabled.