[PATCH] D56663: [MSP430] Improve support of 'interrupt' attribute

[Kristina Bessonova via Phabricator via cfe-commits]

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- Accept as an argument constants in range 0..63 (aligned with TI headers and linker scripts provided with TI GCC toolchain).

- Emit function attribute 'interrupt'='xx' instead of aliases (used in the backend to create a section for particular interrupt vector).

- Add more diagnostics.


Repository:
  rC Clang

https://reviews.llvm.org/D56663

Files:
  include/clang/Basic/DiagnosticSemaKinds.td
  lib/CodeGen/TargetInfo.cpp
  lib/Sema/SemaDeclAttr.cpp
  test/CodeGen/attr-msp430.c
  test/Sema/attr-msp430.c

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