[PATCH] D20337: [MC] Support symbolic expressions in assembly directives

[Petr Hosek via llvm-commits]

phosek updated this revision to Diff 58170.
phosek added a comment.

I have updated the implementation to follow the proposed approach. So far I've only implemented support for .fill, .skip, .space and .zero. I was also considering supporting .align, but this directive is a little more special due to various restrictions on various platforms and I'm not sure if the symbolic expression are actually being used in combination with .align. I have also restricted the symbolic expression support to the first argument which is the size, it might be possible to support them in other arguments as well (GNU assembler does), but again I'm not sure how useful that would be.


Repository:
  rL LLVM

http://reviews.llvm.org/D20337

Files:
  include/llvm/MC/MCObjectStreamer.h
  include/llvm/MC/MCStreamer.h
  lib/MC/MCAsmStreamer.cpp
  lib/MC/MCObjectStreamer.cpp
  lib/MC/MCParser/AsmParser.cpp
  lib/MC/MCStreamer.cpp
  test/MC/AsmParser/directive_fill.s
  test/MC/AsmParser/directive_space.s
  test/MC/AsmParser/symbolic-expression.s

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