[all-commits] [llvm/llvm-project] 2e0940: [X86] Fix for offsets of CFA directives

[Theodoros Kasampalis via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2e0940c6a0857e3cc6aecfe7dd0c4cde94e1ae9a
      https://github.com/llvm/llvm-project/commit/2e0940c6a0857e3cc6aecfe7dd0c4cde94e1ae9a
  Author: Theodoros Kasampalis <kasampalis.theodoros at gmail.com>
  Date:   2023-02-28 (Tue, 28 Feb 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86FrameLowering.cpp
    A llvm/test/CodeGen/X86/tailcc-dwarf.ll

  Log Message:
  -----------
  [X86] Fix for offsets of CFA directives

`emitPrologue` may insert stack pointer adjustment in tail call optimized functions where the callee argument stack size is bigger than the caller's. In such a case, the adjustment must be taken into account when generating CFA directives.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D143618