================
@@ -1065,6 +1065,12 @@ void
CodeGenAction::runOptimizationPipeline(llvm::raw_pwrite_stream &os) {
llvmModule->addModuleFlag(llvm::Module::Error, "ThinLTO", uint32_t(0));
}
+ if (opts.PrepareForFullLTO && opts.EnableSplitLTOUnit && emitSummary &&
+ !llvmModule->getModuleFlag("EnableSplitLTOUnit")) {
+ llvmModule->addModuleFlag(llvm::Module::Error, "EnableSplitLTOUnit",
+ uint32_t(1));
+ }
+
----------------
kkwli wrote:
How about `-flto=thin`?
https://github.com/llvm/llvm-project/pull/202858
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