diff options
Diffstat (limited to 'lld/ELF/LTO.cpp')
| -rw-r--r-- | lld/ELF/LTO.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lld/ELF/LTO.cpp b/lld/ELF/LTO.cpp index 191ec725fab..9a24115dfa8 100644 --- a/lld/ELF/LTO.cpp +++ b/lld/ELF/LTO.cpp @@ -21,6 +21,7 @@ #include "llvm/Support/TargetRegistry.h" #include "llvm/Target/TargetMachine.h" #include "llvm/Transforms/IPO.h" +#include "llvm/Transforms/Utils/ModuleUtils.h" #include "llvm/Transforms/IPO/PassManagerBuilder.h" using namespace llvm; @@ -76,6 +77,10 @@ void BitcodeCompiler::add(BitcodeFile &F) { unsigned BodyIndex = 0; ArrayRef<SymbolBody *> Bodies = F.getSymbols(); + Module &M = Obj->getModule(); + SmallPtrSet<GlobalValue *, 8> Used; + collectUsedGlobalVariables(M, Used, /* CompilerUsed */ false); + for (const BasicSymbolRef &Sym : Obj->symbols()) { GlobalValue *GV = Obj->getSymbolGV(Sym.getRawDataRefImpl()); assert(GV); @@ -108,7 +113,8 @@ void BitcodeCompiler::add(BitcodeFile &F) { // For now, let's be conservative and just never internalize // symbols when creating a shared library. if (!Config->Shared && !Config->ExportDynamic && !B->isUsedInRegularObj()) - InternalizedSyms.insert(GV->getName()); + if (!Used.count(GV)) + InternalizedSyms.insert(GV->getName()); Keep.push_back(GV); } |
