[PATCH] D28451: [AVR] Add support for the 'interrupt' and 'naked' attributes

[Dylan McKay via Phabricator via cfe-commits]

dylanmckay created this revision.
dylanmckay added a reviewer: aaron.ballman.
dylanmckay added a subscriber: cfe-commits.

This teaches clang how to parse and lower the 'interrupt' and 'naked'
attributes.

This allows interrupt signal handlers to be written.


https://reviews.llvm.org/D28451

Files:
  include/clang/Basic/Attr.td
  lib/CodeGen/TargetInfo.cpp
  lib/Sema/SemaDeclAttr.cpp
  test/CodeGen/avr/attributes/interrupt.c
  test/CodeGen/avr/attributes/naked.c

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