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lto: Start taking symbol visibility into consideration.

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llvm-svn: 262761
This commit is contained in:
Rafael Espindola
2016-03-05 00:09:37 +00:00
parent fb5be7a37f
commit 888f2c33d4
3 changed files with 40 additions and 2 deletions
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17
lld/ELF/InputFiles.cpp
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@@ -427,10 +427,23 @@ void BitcodeFile::parse(DenseSet<StringRef> &ComdatGroups) {
}
for (const BasicSymbolRef &Sym : Obj->symbols()) {
if (const GlobalValue *GV = Obj->getSymbolGV(Sym.getRawDataRefImpl()))
uint8_t Visibility = STV_DEFAULT;
if (const GlobalValue *GV = Obj->getSymbolGV(Sym.getRawDataRefImpl())) {
if (const Comdat *C = GV->getComdat())
if (!KeptComdats.count(C))
continue;
switch (GV->getVisibility()) {
case GlobalValue::DefaultVisibility:
Visibility = STV_DEFAULT;
break;
case GlobalValue::HiddenVisibility:
Visibility = STV_HIDDEN;
break;
case GlobalValue::ProtectedVisibility:
Visibility = STV_PROTECTED;
break;
}
}
SmallString<64> Name;
raw_svector_ostream OS(Name);
@@ -440,7 +453,7 @@ void BitcodeFile::parse(DenseSet<StringRef> &ComdatGroups) {
uint32_t Flags = Sym.getFlags();
bool IsWeak = Flags & BasicSymbolRef::SF_Weak;
if (Flags & BasicSymbolRef::SF_Undefined)
Body = new (Alloc) Undefined(NameRef, IsWeak, STV_DEFAULT, false);
Body = new (Alloc) Undefined(NameRef, IsWeak, Visibility, false);
else
Body = new (Alloc) DefinedBitcode(NameRef, IsWeak);
SymbolBodies.push_back(Body);