Index: lib/Format/ContinuationIndenter.cpp
===================================================================
--- lib/Format/ContinuationIndenter.cpp
+++ lib/Format/ContinuationIndenter.cpp
@@ -136,8 +136,32 @@
   }
 
   // If binary operators are moved to the next line (including commas for some
-  // styles of constructor initializers), that's always ok.
-  if (!Current.isOneOf(TT_BinaryOperator, tok::comma) &&
+  // styles of constructor initializers), that's always ok. Also the second
+  // element in a sequence of two consecutive string literals is ok to be
+  // moved to the next line.
+  bool ContinuesStringLiteral = Current.isStringLiteral() && Previous.isStringLiteral();
+  if (!ContinuesStringLiteral) {
+    // In case of ObjC string literals, the following code:
+    // @"line1"
+    // @"line2"
+    // turns into the sequence of tokens:
+    // (@, TT_ObjCLiteral),
+    // ("line1", TT_Unknown),
+    // (@, TT_ObjCLiteral),
+    // ("line2", TT_Unknown),
+    // so we need to specially check for that.
+    ContinuesStringLiteral = Current.is(TT_ObjCStringLiteral) &&
+        Previous.is(TT_Unknown) &&
+        Previous.Previous &&
+        Previous.Previous->is(TT_ObjCStringLiteral);
+  }
+  DEBUG({
+    llvm::dbgs() << "Previous = " << Previous.TokenText << "\n";
+    llvm::dbgs() << "Current = " << Current.TokenText << "\n";
+    llvm::dbgs() << "ContinuesStringLiteral = " << ContinuesStringLiteral << "\n";
+  });
+  if (!(Current.isOneOf(TT_BinaryOperator, tok::comma) ||
+        ContinuesStringLiteral) &&
       State.Stack.back().NoLineBreakInOperand)
     return false;
 
Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -6381,6 +6381,42 @@
             "  \"text \" \\\n"
             "  \"other\";",
             format("#define A \"some text other\";", AlignLeft));
+
+  // The second of two consecutive string literals can be put on a newline.
+  EXPECT_EQ("long_long_long_long\n"
+            "    << long_long_long_long << \"long lo\"\n"
+            "                              \"ng\"",
+            format("long_long_long_long\n"
+                   "    << long_long_long_long << \"long lo\"\n"
+                   "                              \"ng\"",
+                   getLLVMStyleWithColumns(40)));
+  EXPECT_EQ("long_long_long_long(long_lon, \"long lo\"\n"
+            "                              \"ng\");",
+            format("long_long_long_long(long_lon, \"long lo\"\n"
+                   "                              \"ng\");"));
+  // The second and third of three consecutive string literals can be put on a
+  // newline.
+  EXPECT_EQ("long_long_long_long\n"
+            "    << long_long_long_long << \"long lo\"\n"
+            "                              \"long lo\"\n"
+            "                              \"long lo\"",
+            format("long_long_long_long\n"
+                   "    << long_long_long_long << \"long lo\"\n"
+                   "                              \"long lo\"\n"
+                   "                              \"long lo\"",
+                   getLLVMStyleWithColumns(40)));
+  EXPECT_EQ("long_long_long_long(long_lon, \"long lo\"\n"
+            "                              \"long lo\"\n"
+            "                              \"ng\");",
+            format("long_long_long_long(long_lon, \"long lo\"\n"
+                   "                              \"long lo\"\n"
+                   "                              \"ng\");"));
+  EXPECT_EQ("long_long_long_long(long_lon, L\"long lo\"\n"
+            "                              U\"long lo\"\n"
+            "                              u8\"ng\");",
+            format("long_long_long_long(long_lon, L\"long lo\"\n"
+                   "                              U\"long lo\"\n"
+                   "                              u8\"ng\");"));
 }
 
 TEST_F(FormatTest, FullyRemoveEmptyLines) {
Index: unittests/Format/FormatTestObjC.cpp
===================================================================
--- unittests/Format/FormatTestObjC.cpp
+++ unittests/Format/FormatTestObjC.cpp
@@ -772,6 +772,38 @@
       "  NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee : "
       "regularFont,\n"
       "};");
+
+  // The second of two consecutive string literals can be but on a newline.
+  Style = getGoogleStyle(FormatStyle::LK_ObjC);
+  Style.ColumnLimit = 40;
+  EXPECT_EQ("long_long_long_long\n"
+            "    << long_long_long_long << @\"long lo\"\n"
+            "                              @\"ng\"",
+            format("long_long_long_long\n"
+                   "    << long_long_long_long << @\"long lo\"\n"
+                   "                              @\"ng\""));
+  EXPECT_EQ("long_long_long_long(long_lon, @\"long lo\"\n"
+            "                              @\"ng\");",
+            format("long_long_long_long(long_lon, @\"long lo\"\n"
+                   "                              @\"ng\");"));
+  // The second and third of three consecutive string literals can be but on a
+  // newline.
+  Style = getGoogleStyle(FormatStyle::LK_ObjC);
+  Style.ColumnLimit = 40;
+  EXPECT_EQ("long_long_long_long\n"
+            "    << long_long_long_long << @\"long lo\"\n"
+            "                              @\"long lo\"\n"
+            "                              @\"ng\"",
+            format("long_long_long_long\n"
+                   "    << long_long_long_long << @\"long lo\"\n"
+                   "                              @\"long lo\"\n"
+                   "                              @\"ng\""));
+  EXPECT_EQ("long_long_long_long(long_lon, @\"long lo\"\n"
+            "                              @\"long lo\"\n"
+            "                              @\"ng\");",
+            format("long_long_long_long(long_lon, @\"long lo\"\n"
+                   "                              @\"long lo\"\n"
+                   "                              @\"ng\");"));
 }
 
 TEST_F(FormatTestObjC, ObjCArrayLiterals) {