[PATCH] D17741: adds __FILE_BASENAME__ builtin macro

[Weiming Zhao via cfe-commits]

weimingz updated this revision to Diff 49713.
weimingz added a comment.

Add "-f__FILE__-prefix-to-remove" flag to support the trim of the prefix.
Passing special value __ALL_DIR__  to remove all dir parts.

For example FILE is /a/b/c
-f__FILE__-prefix-to-remove=/a/ will cause FILE be expanded to b/c


http://reviews.llvm.org/D17741

Files:
  include/clang/Driver/Options.td
  include/clang/Lex/Preprocessor.h
  include/clang/Lex/PreprocessorOptions.h
  lib/Driver/Tools.cpp
  lib/Frontend/CompilerInvocation.cpp
  lib/Lex/PPMacroExpansion.cpp
  test/Lexer/file_basename.c

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