[clang-format] Emit absolute splits before lines for comments, try 2

Summary:
This recommits https://reviews.llvm.org/D36956 with an update to the added test
case to not use raw string literals, since this makes gcc unhappy.

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D37109

llvm-svn: 311672

1 files changed, 18 insertions, 0 deletions

diff --git a/clang/unittests/Format/FormatTestComments.cpp b/clang/unittests/Format/FormatTestComments.cpp
index 600132ec4b8..c8ebebc58ad 100644
--- a/clang/unittests/Format/FormatTestComments.cpp
+++ b/clang/unittests/Format/FormatTestComments.cpp
@@ -2787,6 +2787,24 @@ TEST_F(FormatTestComments, AlignsBlockCommentDecorations) {
                    "* long */",
                    getLLVMStyleWithColumns(20)));
 }
+
+TEST_F(FormatTestComments, NoCrush_Bug34236) {
+  // This is a test case from a crasher reported in:
+  // https://bugs.llvm.org/show_bug.cgi?id=34236
+  // Temporarily disable formatting for readability.
+  // clang-format off
+  EXPECT_EQ(
+"/*                                                                */ /*\n"
+"                                                                      *       a\n"
+"                                                                      * b c\n"
+"                                                                      * d*/",
+      format(
+"/*                                                                */ /*\n"
+" *       a b\n"
+" *       c     d*/",
+          getLLVMStyleWithColumns(80)));
+  // clang-format on
+}
 } // end namespace
 } // end namespace format
 } // end namespace clang