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-rw-r--r--llvm/lib/CodeGen/MachineBasicBlock.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp
index 02c44fa..7381c7e6 100644
--- a/llvm/lib/CodeGen/MachineBasicBlock.cpp
+++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp
@@ -1436,7 +1436,7 @@ MachineBasicBlock::getSuccProbability(const_succ_iterator Succ) const {
// ditribute the complemental of the sum to each unknown probability.
unsigned KnownProbNum = 0;
auto Sum = BranchProbability::getZero();
- for (auto &P : Probs) {
+ for (const auto &P : Probs) {
if (!P.isUnknown()) {
Sum += P;
KnownProbNum++;