[PATCH] D116628: [X86] add dwarf information for loop stack probe

[Erik Desjardins via Phabricator via llvm-commits]

erikdesjardins created this revision.
erikdesjardins added reviewers: serge-sans-paille, nagisa, efriedma, lkail, pengfei, craig.topper.
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This patch is based on https://reviews.llvm.org/D99585.

While inside the stack probing loop, temporarily change the CFA
to be based on r11/eax, which are already used to hold the loop bound.

Co-authored-by: YangKeao <keao.yang at yahoo.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116628

Files:
  llvm/lib/Target/X86/X86FrameLowering.cpp
  llvm/test/CodeGen/X86/stack-clash-large.ll

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