cache result of UI.getOperandNo() instead of calling it twice, it is cheaper this way

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99394 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Utils/AddrModeMatcher.cpp b/lib/Transforms/Utils/AddrModeMatcher.cpp
index be6b3834f27398cd49df9e835cf94ebf4d177adb..c70bab5492ef652cb6270ac7f7cde7a91b45a941 100644 (file)
--- a/lib/Transforms/Utils/AddrModeMatcher.cpp
+++ b/lib/Transforms/Utils/AddrModeMatcher.cpp
@@ -440,8 +440,9 @@ static bool FindAllMemoryUses(Instruction *I,
     }
     
     if (StoreInst *SI = dyn_cast<StoreInst>(*UI)) {
-      if (UI.getOperandNo() == 0) return true; // Storing addr, not into addr.
-      MemoryUses.push_back(std::make_pair(SI, UI.getOperandNo()));
+      unsigned opNo = UI.getOperandNo();
+      if (opNo == 0) return true; // Storing addr, not into addr.
+      MemoryUses.push_back(std::make_pair(SI, opNo));
       continue;
     }