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Change the linker_private_weak_def_auto' linkage to linkonce_odr_auto_hide' to

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make it more consistent with its intended semantics.

The `linker_private_weak_def_auto' linkage type was meant to automatically hide
globals which never had their addresses taken. It has nothing to do with the
`linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix
among other things.

The intended semantic is more like the `linkonce_odr' linkage type.

Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore
changing the semantics so that it produces the correct output for the linker.

Note: The old linkage name `linker_private_weak_def_auto' will still parse but
is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0.
<rdar://problem/11754934>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162114 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2012-08-17 18:33:14 +00:00
parent d5118c8f78
commit 32811bef95
17 changed files with 59 additions and 62 deletions
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2
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -365,7 +365,7 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) {
case GlobalValue::AvailableExternallyLinkage: return 12;
case GlobalValue::LinkerPrivateLinkage: return 13;
case GlobalValue::LinkerPrivateWeakLinkage: return 14;
case GlobalValue::LinkerPrivateWeakDefAutoLinkage: return 15;
case GlobalValue::LinkOnceODRAutoHideLinkage: return 15;
}
llvm_unreachable("Invalid linkage");
}