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Release Notes: document -f{,no-}integrate-as 

Now that the integrated assembler is considered a first class feature of the
compiler and has a proper feature flag, document the change in the compiler
flags.  Ensure that we indicate that the legacy flags are still available, but,
encourage users to switch to the feature flags.

llvm-svn: 201964
This commit is contained in:
Saleem Abdulrasool 2014-02-23 02:08:45 +00:00
parent cfeb90d7a8
commit 3aa840e685
1 changed files with 10 additions and 2 deletions
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12
clang/docs/ReleaseNotes.rst
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@ -70,16 +70,24 @@ New Compiler Flags
------------------
The integrated assembler is now turned on by default on ARM (and Thumb),
so the use of the option `-integrated-as` is now redundant on those
so the use of the option `-fintegrated-as` is now redundant on those
architectures. This is an important move to both *eat our own dog food*
and to ease cross-compilation tremendously.
We are aware of the problems that this may cause for code bases that
rely on specific GNU syntax or extensions, and we're working towards
getting them all fixed. Please, report bugs or feature requests if
you find anything. In the meantime, use `-no-integrated-as` to revert
you find anything. In the meantime, use `-fno-integrated-as` to revert
back the call to GNU assembler.
In order to provide better diagnostics, the integrated assembler validates
inline assembly when the integrated assembler is enabled. Because this is
considered a feature of the compiler, it is controlled via the `fintegrated-as`
and `fno-integrated-as` flags which enable and disable the integrated assembler
respectively. `-integrated-as` and `-no-integrated-as` are now considered
legacy flags (but are available as an alias to prevent breaking existing users),
and users are encouraged to switch to the equivalent new feature flag.
C Language Changes in Clang
---------------------------