clang-tidy: Add `performance-inefficient-vector-operation` check

https://clang.llvm.org/extra/clang-tidy/checks/performance/inefficient-vector-operation.html

2 files changed, 2 insertions, 3 deletions

diff --git a/src/bench/lockedpool.cpp b/src/bench/lockedpool.cpp
index 161f9af621..6851ed0bd8 100644
--- a/src/bench/lockedpool.cpp
+++ b/src/bench/lockedpool.cpp
@@ -17,9 +17,7 @@ static void BenchLockedPool(benchmark::Bench& bench)
     const size_t synth_size = 1024*1024;
     Arena b(synth_base, synth_size, 16);
 
-    std::vector<void*> addr;
-    for (int x=0; x<ASIZE; ++x)
-        addr.push_back(nullptr);
+    std::vector<void*> addr{ASIZE, nullptr};
     uint32_t s = 0x12345678;
     bench.run([&] {
         int idx = s & (addr.size() - 1);
diff --git a/src/bench/wallet_create_tx.cpp b/src/bench/wallet_create_tx.cpp
index bd32a5abdc..80d23d1e51 100644
--- a/src/bench/wallet_create_tx.cpp
+++ b/src/bench/wallet_create_tx.cpp
@@ -146,6 +146,7 @@ static void AvailableCoins(benchmark::Bench& bench, const std::vector<OutputType
 
     // Generate destinations
     std::vector<CScript> dest_wallet;
+    dest_wallet.reserve(output_type.size());
     for (auto type : output_type) {
         dest_wallet.emplace_back(GetScriptForDestination(getNewDestination(wallet, type)));
     }