From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Mon, 23 Sep 2019 12:49:39 +0000 (+0000)
Subject: Function::BuildLazyArguments() - fix "variable used but never read" analyzer warning... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=38a5344664168db192fb7c8549e36eca0ab1405a;p=llvm

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

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 1a2783f12fe..a4632762c20 100644
--- 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());
 }