do not warn about -=/=- confusion with macros, thanks to rdogra for a testcase.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66416 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 4fb03b3..4ba35a5 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -3499,7 +3499,8 @@
Loc.getFileLocWithOffset(1) == UO->getOperatorLoc() &&
// And there is a space or other character before the subexpr of the
// unary +/-. We don't want to warn on "x=-1".
- Loc.getFileLocWithOffset(2) != UO->getSubExpr()->getLocStart()) {
+ Loc.getFileLocWithOffset(2) != UO->getSubExpr()->getLocStart() &&
+ UO->getSubExpr()->getLocStart().isFileID()) {
Diag(Loc, diag::warn_not_compound_assign)
<< (UO->getOpcode() == UnaryOperator::Plus ? "+" : "-")
<< SourceRange(UO->getOperatorLoc(), UO->getOperatorLoc());