Use an iterator instead of calling .size() on the worklist every time, which is wasteful.

llvm-svn: 152794

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineWorklist.h b/llvm/lib/Transforms/InstCombine/InstCombineWorklist.h
index 32009c39ec2..99a02fc0df3 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineWorklist.h
+++ b/llvm/lib/Transforms/InstCombine/InstCombineWorklist.h
@@ -55,9 +55,9 @@ public:
     Worklist.reserve(NumEntries+16);
     WorklistMap.resize(NumEntries);
     DEBUG(errs() << "IC: ADDING: " << NumEntries << " instrs to worklist\n");
-    for (; NumEntries; --NumEntries) {
+    for (unsigned Idx = 0; NumEntries; --NumEntries) {
       Instruction *I = List[NumEntries-1];
-      WorklistMap.insert(std::make_pair(I, Worklist.size()));
+      WorklistMap.insert(std::make_pair(I, Idx++));
       Worklist.push_back(I);
     }
   }