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-rw-r--r--llvm/lib/LTO/LTOBackend.cpp19
1 files changed, 11 insertions, 8 deletions
diff --git a/llvm/lib/LTO/LTOBackend.cpp b/llvm/lib/LTO/LTOBackend.cpp
index 21aed799d6fa..d5d642f0d25e 100644
--- a/llvm/lib/LTO/LTOBackend.cpp
+++ b/llvm/lib/LTO/LTOBackend.cpp
@@ -143,7 +143,7 @@ Error Config::addSaveTemps(std::string OutputFileName, bool UseInputModulePath,
writeIndexToFile(Index, OS);
Path = OutputFileName + "index.dot";
- raw_fd_ostream OSDot(Path, EC, sys::fs::OpenFlags::OF_None);
+ raw_fd_ostream OSDot(Path, EC, sys::fs::OpenFlags::OF_Text);
if (EC)
reportOpenError(Path, EC.message());
Index.exportToDot(OSDot, GUIDPreservedSymbols);
@@ -191,12 +191,8 @@ static void RegisterPassPlugins(ArrayRef<std::string> PassPlugins,
// Load requested pass plugins and let them register pass builder callbacks
for (auto &PluginFN : PassPlugins) {
auto PassPlugin = PassPlugin::Load(PluginFN);
- if (!PassPlugin) {
- errs() << "Failed to load passes from '" << PluginFN
- << "'. Request ignored.\n";
- continue;
- }
-
+ if (!PassPlugin)
+ report_fatal_error(PassPlugin.takeError(), /*gen_crash_diag=*/false);
PassPlugin->registerPassBuilderCallbacks(PB);
}
}
@@ -720,7 +716,14 @@ bool lto::initImportList(const Module &M,
if (Summary->modulePath() == M.getModuleIdentifier())
continue;
// Add an entry to provoke importing by thinBackend.
- ImportList[Summary->modulePath()].insert(GUID);
+ // Try emplace the entry first. If an entry with the same key already
+ // exists, set the value to 'std::min(existing-value, new-value)' to make
+ // sure a definition takes precedence over a declaration.
+ auto [Iter, Inserted] = ImportList[Summary->modulePath()].try_emplace(
+ GUID, Summary->importType());
+
+ if (!Inserted)
+ Iter->second = std::min(Iter->second, Summary->importType());
}
}
return true;