[PATCH] D84419: Fix interaction between stack alignment and inline-asm stack clash protection

[serge via Phabricator via llvm-commits]

serge-sans-paille updated this revision to Diff 293475.
serge-sans-paille added a comment.

Enforce an extra invariant: after alignment adjustment, there is less than PAGE_SIZE unprobed, which make sit possible to decouple it from stack allocation probing. I think this adresses @efriedma comment (?)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84419/new/

https://reviews.llvm.org/D84419

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-no-free-probe.ll
  llvm/test/CodeGen/X86/stack-clash-small-alloc-medium-align.ll
  llvm/test/CodeGen/X86/stack-clash-small-large-align.ll

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