Improved false positive rate for the idempotent operations checker and moved it into the default path-sensitive analysis options.

- Added checks for static local variables, self assigned parameters, and truncating/extending self assignments
- Removed command line option (now default with --analyze)
- Updated test cases to pass with idempotent operation warnings

llvm-svn: 108550

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/Checker/GRExprEngine.cpp b/clang/lib/Checker/GRExprEngine.cpp
index 07fee9d39e4..1424820f3b8 100644
--- a/clang/lib/Checker/GRExprEngine.cpp
+++ b/clang/lib/Checker/GRExprEngine.cpp
@@ -361,6 +361,7 @@ static void RegisterInternalChecks(GRExprEngine &Eng) {
   RegisterDereferenceChecker(Eng);
   RegisterVLASizeChecker(Eng);
   RegisterDivZeroChecker(Eng);
+  RegisterIdempotentOperationChecker(Eng);
   RegisterReturnUndefChecker(Eng);
   RegisterUndefinedArraySubscriptChecker(Eng);
   RegisterUndefinedAssignmentChecker(Eng);