[PATCH] D15126: Fix ARMv4T (Thumb1) epilogue generation

[A. Skrobov via llvm-commits]

tyomitch created this revision.
tyomitch added reviewers: jroelofs, qcolombet.
tyomitch added a subscriber: llvm-commits.
Herald added subscribers: rengolin, aemerson.

Before ARMv5T, Thumb1 code could not pop PC, as described at D14357 and D14986;
so we need the special fixup in the epilogue.

http://reviews.llvm.org/D15126

Files:
  lib/Target/ARM/Thumb1FrameLowering.cpp
  test/CodeGen/ARM/debug-frame.ll
  test/CodeGen/Thumb/large-stack.ll
  test/CodeGen/Thumb/pop-special-fixup.ll
  test/CodeGen/Thumb/thumb-shrink-wrapping.ll

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