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Simplify. NFC.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254254 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2015-11-29 14:33:06 +00:00
parent e8f80e5261
commit 91f2c7bc43
1 changed files with 12 additions and 16 deletions
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28
lib/Linker/LinkModules.cpp
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@ -627,19 +627,6 @@ void ModuleLinker::copyGVAttributes(GlobalValue *NewGV,
forceRenaming(NewGV, getName(SrcGV));
}
static bool isLessConstraining(GlobalValue::VisibilityTypes a,
GlobalValue::VisibilityTypes b) {
if (a == GlobalValue::HiddenVisibility)
return false;
if (b == GlobalValue::HiddenVisibility)
return true;
if (a == GlobalValue::ProtectedVisibility)
return false;
if (b == GlobalValue::ProtectedVisibility)
return true;
return false;
}
bool ModuleLinker::doImportAsDefinition(const GlobalValue *SGV) {
if (!isPerformingImport())
return false;
@ -864,13 +851,22 @@ GlobalValue *ModuleLinker::copyGlobalAliasProto(TypeMapTy &TypeMap,
getLinkage(SGA), getName(SGA), DstM);
}
static GlobalValue::VisibilityTypes
getMinVisibility(GlobalValue::VisibilityTypes A,
GlobalValue::VisibilityTypes B) {
if (A == GlobalValue::HiddenVisibility || B == GlobalValue::HiddenVisibility)
return GlobalValue::HiddenVisibility;
if (A == GlobalValue::ProtectedVisibility ||
B == GlobalValue::ProtectedVisibility)
return GlobalValue::ProtectedVisibility;
return GlobalValue::DefaultVisibility;
}
void ModuleLinker::setVisibility(GlobalValue *NewGV, const GlobalValue *SGV,
const GlobalValue *DGV) {
GlobalValue::VisibilityTypes Visibility = SGV->getVisibility();
if (DGV)
Visibility = isLessConstraining(Visibility, DGV->getVisibility())
? DGV->getVisibility()
: Visibility;
Visibility = getMinVisibility(DGV->getVisibility(), Visibility);
// For promoted locals, mark them hidden so that they can later be
// stripped from the symbol table to reduce bloat.
if (SGV->hasLocalLinkage() && doPromoteLocalToGlobal(SGV))