Rafael Espindola bdb3c4f195 Produce .weak_def_can_be_hidden for some linkonce_odr values ...

With this patch llvm produces a weak_def_can_be_hidden for linkonce_odr
if they are also unnamed_addr or don't have their address taken.

There is not a lot of documentation about .weak_def_can_be_hidden, but
from the old discussion about linkonce_odr_auto_hide and the name of
the directive this looks correct: these symbols can be hidden.

Testing this with the ld64 in Xcode 5 linking clang reduces the number of
exported symbols from 21053 to 19049.

llvm-svn: 193718

2013-10-30 22:08:11 +00:00

..

llvm

Produce .weak_def_can_be_hidden for some linkonce_odr values

2013-10-30 22:08:11 +00:00

llvm-c

llvm-c: Make LLVM{Get,Set}Alignment work on {Load,Store}Inst too

2013-10-29 09:02:02 +00:00