[PATCH] D125644: [ARM SEH 2] [llvm-readobj] Improve printing of Windows ARM packed unwind info

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo created this revision.
mstorsjo added reviewers: efriedma, rnk, zzheng.
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mstorsjo requested review of this revision.
Herald added a subscriber: MaskRay.
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Fix a couple minor details in the existing logic for calculating
saved registers and stack adjustment.

Synthesize the corresponding prologues and epilogues and print them.
(This supersedes the previous printout of one single list of stored
registers; as there's lots of minor nuance differences in how
registers are pushed/popped in various corner cases, it's better to
print the full prologue/epilogue instead of trying to condense it
into one single list.)

Print the raw values of the fields Reg, R, L (LinkRegister) and C
(Chaining) instead of only printing the derived values.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125644

Files:
  llvm/include/llvm/Support/ARMWinEH.h
  llvm/lib/Support/ARMWinEH.cpp
  llvm/test/tools/llvm-readobj/COFF/arm-unwind-packed.s
  llvm/tools/llvm-readobj/ARMWinEHPrinter.cpp
  llvm/tools/llvm-readobj/ARMWinEHPrinter.h

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