diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -2425,6 +2425,8 @@
   if (Left.is(TT_JavaAnnotation))
     return 50;
 
+  if (Left.is(TT_UnaryOperator))
+    return 60;
   if (Left.isOneOf(tok::plus, tok::comma) && Left.Previous &&
       Left.Previous->isLabelString() &&
       (Left.NextOperator || Left.OperatorIndex != 0))
diff --git a/clang/unittests/Format/FormatTestObjC.cpp b/clang/unittests/Format/FormatTestObjC.cpp
--- a/clang/unittests/Format/FormatTestObjC.cpp
+++ b/clang/unittests/Format/FormatTestObjC.cpp
@@ -886,6 +886,18 @@
                "                 bb:42\n"
                "                 cc:42];");
 
+  // Avoid breaking between unary operators and ObjC method expressions.
+  Style.ColumnLimit = 45;
+  verifyFormat("if (a012345678901234567890123 &&\n"
+               "    ![foo bar]) {\n"
+               "}");
+  verifyFormat("if (a012345678901234567890123 &&\n"
+               "    +[foo bar]) {\n"
+               "}");
+  verifyFormat("if (a012345678901234567890123 &&\n"
+               "    -[foo bar]) {\n"
+               "}");
+
   Style.ColumnLimit = 70;
   verifyFormat(
       "void f() {\n"