[all-commits] [llvm/llvm-project] c7faa6: Revert "ARM-Darwin: keep the frame register reserv...

[Alina Sbirlea via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: c7faa6814248cf2443cce856a74247fc70699f98
      https://github.com/llvm/llvm-project/commit/c7faa6814248cf2443cce856a74247fc70699f98
  Author: Alina Sbirlea <asbirlea at google.com>
  Date:   2019-12-06 (Fri, 06 Dec 2019)

  Changed paths:
    M llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp
    R llvm/test/CodeGen/ARM/r7-fixed-darwin.ll
    M llvm/test/CodeGen/Thumb/long.ll
    M llvm/test/CodeGen/Thumb2/2010-03-15-AsmCCClobber.ll

  Log Message:
  -----------
  Revert "ARM-Darwin: keep the frame register reserved even if not updated."

This reverts commit a7d90af1be48234ce583e00fb16e33633d44ae38.

This revision came back as the root-cause for crashes in internal
ARM-IOS apps.
Reproducer in https://bugs.llvm.org/show_bug.cgi?id=44231.