Use empty() instead of comparing size() with zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46514 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 2d16230..ec71ba4 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1327,7 +1327,7 @@
     }
     
     case bitc::FUNC_CODE_INST_RET: // RET: [opty,opval<optional>]
-      if (Record.size() == 0) {
+      if (Record.empty()) {
         I = new ReturnInst();
         break;
       } else {