================
@@ -1692,6 +1692,19 @@
PassBuilder::buildFatLTODefaultPipeline(OptimizationLevel Level, bool ThinLTO,
if (ThinLTO && PGOOpt && PGOOpt->Action == PGOOptions::SampleUse)
MPM.addPass(buildThinLTODefaultPipeline(Level, /*ImportSummary=*/nullptr));
else {
+ // ModuleSimplification does not run the coroutine passes for
+ // ThinLTOPreLink, so we need the coroutine passes to run for ThinLTO
+ // builds, otherwise they will miscompile.
+ if (ThinLTO) {
+ // TODO: replace w/ buildCoroWrapper() when it takes phase and level into
+ // consideration.
+ CGSCCPassManager CGPM;
----------------
vitalybuka wrote:
maybe better to use buildCoroWrapper?
https://github.com/llvm/llvm-project/pull/134434
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