diff options
Diffstat (limited to 'lib/Transforms/Utils/FunctionImportUtils.cpp')
-rw-r--r-- | lib/Transforms/Utils/FunctionImportUtils.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/FunctionImportUtils.cpp b/lib/Transforms/Utils/FunctionImportUtils.cpp index fbb61ac1ae91..2e6fc4e8482e 100644 --- a/lib/Transforms/Utils/FunctionImportUtils.cpp +++ b/lib/Transforms/Utils/FunctionImportUtils.cpp @@ -203,6 +203,23 @@ FunctionImportGlobalProcessing::getLinkage(const GlobalValue *SGV, } void FunctionImportGlobalProcessing::processGlobalForThinLTO(GlobalValue &GV) { + + // Check the summaries to see if the symbol gets resolved to a known local + // definition. + if (GV.hasName()) { + ValueInfo VI = ImportIndex.getValueInfo(GV.getGUID()); + if (VI) { + // Need to check all summaries are local in case of hash collisions. + bool IsLocal = VI.getSummaryList().size() && + llvm::all_of(VI.getSummaryList(), + [](const std::unique_ptr<GlobalValueSummary> &Summary) { + return Summary->isDSOLocal(); + }); + if (IsLocal) + GV.setDSOLocal(true); + } + } + bool DoPromote = false; if (GV.hasLocalLinkage() && ((DoPromote = shouldPromoteLocalToGlobal(&GV)) || isPerformingImport())) { |