Fix isDiscardableIfUnused to include available_externally linkage.

AvailableExternally functions are discardable.

llvm-svn: 247044
This commit is contained in:
Evgeniy Stepanov 2015-09-08 18:25:20 +00:00
parent 1854927556
commit 80d5569dba
1 changed files with 2 additions and 1 deletions

View File

@ -236,7 +236,8 @@ public:
/// Whether the definition of this global may be discarded if it is not used
/// in its compilation unit.
static bool isDiscardableIfUnused(LinkageTypes Linkage) {
return isLinkOnceLinkage(Linkage) || isLocalLinkage(Linkage);
return isLinkOnceLinkage(Linkage) || isLocalLinkage(Linkage) ||
isAvailableExternallyLinkage(Linkage);
}
/// Whether the definition of this global may be replaced by something