[all-commits] [llvm/llvm-project] 20a093: [AArch64] Async unwind - Refactor generation of sh...

[Momchil Velikov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 20a093e2bc310283ec216ab47fddb68f0bdaa6f0
      https://github.com/llvm/llvm-project/commit/20a093e2bc310283ec216ab47fddb68f0bdaa6f0
  Author: Momchil Velikov <momchil.velikov at arm.com>
  Date:   2022-02-25 (Fri, 25 Feb 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64FrameLowering.cpp

  Log Message:
  -----------
  [AArch64] Async unwind - Refactor generation of shadow call stack prologue/epilogue

This patch is in preparation for the async unwind CFI.

Move the emission of the shadow call stack prologue/epilogue
instructions to the `emitPrologue`/`emitEpilogue`. This greatly
simplifies especially epilogue generation and makes unnecessary some
quite fragile code, that tries to skip over those

Reviewed By: MaskRay, efriedma

Differential Revision: https://reviews.llvm.org/D112329