[all-commits] [llvm/llvm-project] 6b70c5: [PowerPC] provide CFI for ELF32 to unwind cr2, cr3...

[George Koehler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6b70c5d79fe44cbe01b0443454c6952c5b541585
      https://github.com/llvm/llvm-project/commit/6b70c5d79fe44cbe01b0443454c6952c5b541585
  Author: George Koehler <kernigh at gmail.com>
  Date:   2024-03-02 (Sat, 02 Mar 2024)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCFrameLowering.cpp
    M llvm/test/CodeGen/PowerPC/crsave.ll

  Log Message:
  -----------
  [PowerPC] provide CFI for ELF32 to unwind cr2, cr3, cr4 (#83098)

Delete the code that skips the CFI for the condition register on ELF32.
The code checked !MustSaveCR, which happened only when
Subtarget.is32BitELFABI(), where spillCalleeSavedRegisters is spilling
cr in a different way. The spill was missing CFI. After deleting this
code, a spill of cr2 to cr4 gets CFI in the same way as a spill of r14
to r31.

Fixes #83094



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