[Bug 206990] powerpc (32-bit), projects/clang380-import vs. 11.0-CURRENT's sendsig: need to avoid signal delivery trashing the stack and so causing SIGSEGV

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206990

--- Comment #14 from commit-hook at freebsd.org ---
A commit references this bug:

Author: dim
Date: Thu May 25 23:14:51 UTC 2017
New revision: 318906
URL: https://svnweb.freebsd.org/changeset/base/318906

Log:
  Pull in r303257 from upstream llvm trunk (by Krzysztof Parzyszek)

    [PPC] Properly update register save area offsets

    The variables MinGPR/MinG8R were not updated properly when resetting the
    offsets, which in the included testcase lead to saving the CR register
    in the same location as R30.

    This fixes another issue reported in PR26519.

    Differential Revision: https://reviews.llvm.org/D33017

  Reported by:  Mark Millard
  PR:           206990
  MFC after:    3 days

Changes:
  head/contrib/llvm/lib/Target/PowerPC/PPCFrameLowering.cpp

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