Turns out AnalyzeBranch can modify the mbb being analyzed. This is a nasty

[oota-llvm.git] / lib / CodeGen / LiveStackAnalysis.cpp

diff --git a/lib/CodeGen/LiveStackAnalysis.cpp b/lib/CodeGen/LiveStackAnalysis.cpp
index 9358c105705d144b4eae4cf894c7708bdb28307b..2baf699c66c71f576e71cd5f1ec9301a1f8d3346 100644 (file)
--- a/lib/CodeGen/LiveStackAnalysis.cpp
+++ b/lib/CodeGen/LiveStackAnalysis.cpp
@@ -26,6 +26,7 @@ static RegisterPass<LiveStacks> X("livestacks", "Live Stack Slot Analysis");
 
 void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();
+  MachineFunctionPass::getAnalysisUsage(AU);
 }
 
 void LiveStacks::releaseMemory() {