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

llvm-svn: 99394

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Utils/AddrModeMatcher.cpp b/llvm/lib/Transforms/Utils/AddrModeMatcher.cpp
index be6b383..c70bab5 100644
--- a/llvm/lib/Transforms/Utils/AddrModeMatcher.cpp
+++ b/llvm/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;
     }