Replace std::copy with a back inserter with vector append where feasible
All of the cases were just appending from random access iterators to a
vector. Using insert/append can grow the vector to the perfect size
directly and moves the growing out of the loop. No intended functionalty
change.
llvm-svn: 230845
diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
index 283d1f2..2800d84 100644
--- a/llvm/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
@@ -411,8 +411,7 @@
if (ExtendLife && !ExtendedUses.empty())
// Extend the liveness of the extension result.
- std::copy(ExtendedUses.begin(), ExtendedUses.end(),
- std::back_inserter(Uses));
+ Uses.append(ExtendedUses.begin(), ExtendedUses.end());
// Now replace all uses.
bool Changed = false;