[PATCH] D14948: [X86] Use precise CFI for pushes by default

[Michael Kuperstein via llvm-commits]

mkuper created this revision.
mkuper added reviewers: rafael, rnk, DavidKreitzer.
mkuper added a subscriber: llvm-commits.

As discussed on the list, this always generates precise CFI.

I'd still like to hook up the imprecise behavior to a switch, but I'm not sure exactly what kind of switch. So I'd like to leave the other option in, but temporary dead. If there's a strong objection to that, I'll pull it out completely, and re-introduce later.

http://reviews.llvm.org/D14948

Files:
  include/llvm/CodeGen/MachineModuleInfo.h
  lib/CodeGen/MachineModuleInfo.cpp
  lib/Target/X86/X86FrameLowering.cpp
  lib/Target/X86/X86MCInstLower.cpp
  test/CodeGen/X86/push-cfi.ll
  test/CodeGen/X86/tls-pie.ll
  test/CodeGen/X86/win32-pic-jumptable.ll

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