SelectionDAGISel does not "preserve all", since it makes lots of changes
to the MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77753 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 1072c95..301c5a7 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -289,9 +289,11 @@
void SelectionDAGISel::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<AliasAnalysis>();
+ AU.addPreserved<AliasAnalysis>();
AU.addRequired<GCModuleInfo>();
+ AU.addPreserved<GCModuleInfo>();
AU.addRequired<DwarfWriter>();
- AU.setPreservesAll();
+ AU.addPreserved<DwarfWriter>();
MachineFunctionPass::getAnalysisUsage(AU);
}