[ThinLTO] Ensure sanitizer passes are run

teresajohnson · teresajohnson · commit dcf64df89bc6 · 2017-11-08T19:45:52.000Z
Summary: In ThinLTO compilation, we exit populateModulePassManager early and were not adding PM extension passes meant to run at the end of the pipeline. This includes sanitizer passes. Add these passes before the early exit. A test will be added to projects/compiler-rt. Reviewers: pcc Subscribers: mehdi_amini, inglorion, llvm-commits Differential Revision: https://reviews.llvm.org/D39565 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317714 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -548,6 +548,9 @@ void PassManagerBuilder::populateModulePassManager(
   // unrolling/vectorization/... now. We'll first run the inliner + CGSCC passes
   // during ThinLTO and perform the rest of the optimizations afterward.
   if (PrepareForThinLTO) {
+    // Ensure we perform any last passes, but do so before renaming anonymous
+    // globals in case the passes add any.
+    addExtensionsToPM(EP_OptimizerLast, MPM);
     // Rename anon globals to be able to export them in the summary.
     MPM.add(createNameAnonGlobalPass());
     return;
