PR28400: Partly undo r274440 to bring test-suite back to life with the new PM
PR28400 seems to be not an isolated issue, but a general problem related
to caching analyses. We will need to discuss on llvm-dev.
A test case is in the PR.
llvm-svn: 274457
diff --git a/llvm/lib/Transforms/Scalar/JumpThreading.cpp b/llvm/lib/Transforms/Scalar/JumpThreading.cpp
index bb3352c..8e6020b 100644
--- a/llvm/lib/Transforms/Scalar/JumpThreading.cpp
+++ b/llvm/lib/Transforms/Scalar/JumpThreading.cpp
@@ -151,7 +151,8 @@
if (!Changed)
return PreservedAnalyses::all();
PreservedAnalyses PA;
- PA.preserve<LazyValueAnalysis>();
+ // FIXME: Not preserving LVI! We need it to be invalidated so that we
+ // don't run into issues like PR28400. Is there a better solution?
PA.preserve<GlobalsAA>();
return PA;
}