Change all self assignments X=X to (void)X, so that we can turn on a

new gcc warning that complains on self-assignments and
self-initializations.

llvm-svn: 122458

2 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp
index 73ee5cd1c3b..ded1d0767c6 100644
--- a/llvm/lib/Analysis/ConstantFolding.cpp
+++ b/llvm/lib/Analysis/ConstantFolding.cpp
@@ -1216,7 +1216,7 @@ llvm::ConstantFoldCall(Function *F,
           Val.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &lost);
 
         // Conversion is always precise.
-        status = status;
+        (void)status;
         assert(status == APFloat::opOK && !lost &&
                "Precision lost during fp16 constfolding");
 
@@ -1313,4 +1313,3 @@ llvm::ConstantFoldCall(Function *F,
   }
   return 0;
 }
-
diff --git a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
index 9d7bbbd6141..8ac0a374a6d 100644
--- a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
+++ b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
@@ -100,7 +100,7 @@ static void RemoveFromReverseMap(DenseMap<Instruction*,
   InstIt = ReverseMap.find(Inst);
   assert(InstIt != ReverseMap.end() && "Reverse map out of sync?");
   bool Found = InstIt->second.erase(Val);
-  assert(Found && "Invalid reverse map!"); Found=Found;
+  assert(Found && "Invalid reverse map!"); (void)Found;
   if (InstIt->second.empty())
     ReverseMap.erase(InstIt);
 }