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-rw-r--r--lib/CodeGen/MachineBlockFrequency.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineBlockFrequency.cpp b/lib/CodeGen/MachineBlockFrequency.cpp
index 893a320a6a..0a77bdd38a 100644
--- a/lib/CodeGen/MachineBlockFrequency.cpp
+++ b/lib/CodeGen/MachineBlockFrequency.cpp
@@ -41,6 +41,7 @@ MachineBlockFrequency::~MachineBlockFrequency() {
void MachineBlockFrequency::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<MachineBranchProbabilityInfo>();
AU.setPreservesAll();
+ MachineFunctionPass::getAnalysisUsage(AU);
}
bool MachineBlockFrequency::runOnMachineFunction(MachineFunction &F) {