[PATCH] D28011: Emit .cfi_sections before the first .cfi_startproc

[Joerg Sonnenberger via Phabricator via llvm-commits]

joerg created this revision.
joerg added a reviewer: majnemer.
joerg added a subscriber: llvm-commits.

GNU as rejects input where .cfi_sections is used after .cfi_startproc, if the new section differs from the old. Adjust our output to always emit .cfi_sections before the first .cfi_startproc to minimize necessary code.


https://reviews.llvm.org/D28011

Files:
  lib/CodeGen/AsmPrinter/ARMException.cpp
  lib/CodeGen/AsmPrinter/DwarfCFIException.cpp
  lib/CodeGen/AsmPrinter/DwarfException.h
  test/CodeGen/ARM/early-cfi-sections.ll
  test/CodeGen/ARM/no-cfi.ll
  test/CodeGen/X86/early-cfi-sections.ll

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