More warnings for unused expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77763 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 6 insertions, 0 deletions

diff --git a/lib/Sema/SemaStmt.cpp b/lib/Sema/SemaStmt.cpp
index f00d60089b..65611f2e58 100644
--- a/lib/Sema/SemaStmt.cpp
+++ b/lib/Sema/SemaStmt.cpp
@@ -649,6 +649,8 @@ Sema::ActOnForStmt(SourceLocation ForLoc, SourceLocation LParenLoc,
         << SecondType << Second->getSourceRange());
   }
   
+  DiagnoseUnusedExprResult(First);
+  DiagnoseUnusedExprResult(Third);
   DiagnoseUnusedExprResult(Body);
 
   first.release();
diff --git a/test/Sema/unused-expr.c b/test/Sema/unused-expr.c
index c55afeadc4..8b5d156126 100644
--- a/test/Sema/unused-expr.c
+++ b/test/Sema/unused-expr.c
@@ -67,6 +67,10 @@ void t4(int a) {
   
   for (;;)
     b == 5; // expected-warning{{expression result unused}}
+    
+  for (b == 1;;) {} // expected-warning{{expression result unused}}
+  for (;b == 1;) {}
+  for (;;b == 1) {} // expected-warning{{expression result unused}}
 }