[PATCH] D153098: [AArch64] Emit fewer CFI instructions for synchronous unwind tables

[Igor Kudrin via Phabricator via llvm-commits]

ikudrin added a comment.

In D153098#4462255 <https://reviews.llvm.org/D153098#4462255>, @MaskRay wrote:

> Have you checked all the lost `.cfi_def_cfa_offset` and verified that they are all non-important?

The patch preserves the last `.cfi_def_cfa` or `.cfi_def_cfa_offset` instruction in the prolog, which is enough for synchronous unwind tables.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D153098/new/

https://reviews.llvm.org/D153098