Function::BuildLazyArguments() - fix "variable used but never read" analyzer warning...

Simplify the code by separating the masking of the SDC variable from using it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@372598 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/IR/Function.cpp b/lib/IR/Function.cpp
index 1a2783f12fe7ea27a876df7e1e6565bd0c937406..a4632762c20e287517f9158d4ce43dfeb8e3cc37 100644 (file)
--- a/lib/IR/Function.cpp
+++ b/lib/IR/Function.cpp
@@ -293,7 +293,8 @@ void Function::BuildLazyArguments() const {
 
   // Clear the lazy arguments bit.
   unsigned SDC = getSubclassDataFromValue();
-  const_cast<Function*>(this)->setValueSubclassData(SDC &= ~(1<<0));
+  SDC &= ~(1 << 0);
+  const_cast<Function*>(this)->setValueSubclassData(SDC);
   assert(!hasLazyArguments());
 }