Convert two std::vectors to SmallVectors for a 3.4% speedup running -scalarrepl

on test-suite + SPEC2000 & SPEC2006.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124068 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Utils/PromoteMemoryToRegister.cpp b/lib/Transforms/Utils/PromoteMemoryToRegister.cpp
index 790d4c2..e6a4373 100644 (file)
--- a/lib/Transforms/Utils/PromoteMemoryToRegister.cpp
+++ b/lib/Transforms/Utils/PromoteMemoryToRegister.cpp
@@ -282,8 +282,8 @@ namespace {
   };
   
   struct AllocaInfo {
-    std::vector<BasicBlock*> DefiningBlocks;
-    std::vector<BasicBlock*> UsingBlocks;
+    SmallVector<BasicBlock*, 32> DefiningBlocks;
+    SmallVector<BasicBlock*, 32> UsingBlocks;
     
     StoreInst  *OnlyStore;
     BasicBlock *OnlyBlock;