[LLVMdev] [rfc] "alias weak" X "weak alias"

[Rafael Espíndola]

> I thought the policy was:
>
> 1. Provide bitcode autoupgrade until next LLVM release
> 2. Provide text autograde until next major LLVM release
>
> I'm sure I may be wrong, though... There were precedents in the past -
> you may want to look into them.

I am sure we provide bitcode autougrade until the next major release,
since the bitcode reader is full of FIXME notes for 4.0.

We don't seem to provide text autoupgrade unless there a particular
demand for it. For example, when linkonce_odr_auto_hide was removed
all text parsing support for it went away in a single commit. For
linker_private we got upgrade support for it, but as a special case,
with a warning and we intend to drop it as soon as 3.5 branches.

Cheers,
Rafael