[PATCH] D98789: [PEI] add dwarf information for stack probe

[YangKeao via Phabricator via llvm-commits]

YangKeao created this revision.
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While probing stack, the stack register is moved without
dwarf information, which could cause panic if unwind the
backtrace at that point. This commit add dwarf information
for these operation, and use r11 (instead of rsp) to iterate
over pages to probe.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98789

Files:
  llvm/lib/Target/X86/X86FrameLowering.cpp
  llvm/lib/Target/X86/X86FrameLowering.h
  llvm/test/CodeGen/X86/stack-clash-large-large-align.ll
  llvm/test/CodeGen/X86/stack-clash-large.ll
  llvm/test/CodeGen/X86/stack-clash-medium-natural-probes-mutliple-objects.ll
  llvm/test/CodeGen/X86/stack-clash-medium-natural-probes.ll
  llvm/test/CodeGen/X86/stack-clash-medium.ll
  llvm/test/CodeGen/X86/stack-clash-small-large-align.ll
  llvm/test/CodeGen/X86/stack-clash-small.ll
  llvm/test/CodeGen/X86/stack-clash-unknown-call.ll

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