From cb8a1aca35ecc33a5adcc0892aa31fb2a7750dc8 Mon Sep 17 00:00:00 2001
From: Jordan Rose <jordan_rose@apple.com>
Date: Thu, 21 Feb 2013 18:53:19 +0000
Subject: Preprocessor: preserve whitespace in -traditional-cpp mode.

Note that unlike GNU cpp we currently do not preserve whitespace in macros
(even in -traditional-cpp mode).

<rdar://problem/12897179>

llvm-svn: 175778
---
 clang/test/Preprocessor/traditional-cpp.c | 56 +++++++++++++++++++++++++++++--
 1 file changed, 54 insertions(+), 2 deletions(-)

(limited to 'clang/test/Preprocessor/traditional-cpp.c')

diff --git a/clang/test/Preprocessor/traditional-cpp.c b/clang/test/Preprocessor/traditional-cpp.c
index 5fc9ee398ec..72024546ff3 100644
--- a/clang/test/Preprocessor/traditional-cpp.c
+++ b/clang/test/Preprocessor/traditional-cpp.c
@@ -4,9 +4,61 @@
 
 /*
  RUN: %clang_cc1 -traditional-cpp %s -E -o %t
- RUN: FileCheck < %t %s
+ RUN: FileCheck -strict-whitespace < %t %s
 */
 
-/* CHECK: foo // bar
+/* CHECK: {{^}}foo // bar{{$}}
  */
 foo // bar
+
+
+/* The lines in this file contain hard tab characters and trailing whitespace; 
+ * do not change them! */
+
+/* CHECK: {{^}}	indented!{{$}}
+ * CHECK: {{^}}tab	separated	values{{$}}
+ */
+	indented!
+tab	separated	values
+
+#define bracket(x) >>>x<<<
+bracket(|  spaces  |)
+/* CHECK: {{^}}>>>|  spaces  |<<<{{$}}
+ */
+
+/* This is still a preprocessing directive. */
+# define foo bar
+foo!
+-
+	foo!	foo!	
+/* CHECK: {{^}}bar!{{$}}
+ * CHECK: {{^}}	bar!	bar!	{{$}}
+ */
+
+/* Deliberately check a leading newline with spaces on that line. */
+   
+# define foo bar
+foo!
+-
+	foo!	foo!	
+/* CHECK: {{^}}bar!{{$}}
+ * CHECK: {{^}}	bar!	bar!	{{$}}
+ */
+
+/* FIXME: -traditional-cpp should not consider this a preprocessing directive
+ * because the # isn't in the first column.
+ */
+ #define foo2 bar
+foo2!
+/* If this were working, both of these checks would be on.
+ * CHECK-NOT: {{^}} #define foo2 bar{{$}}
+ * CHECK-NOT: {{^}}foo2!{{$}}
+ */
+
+/* FIXME: -traditional-cpp should not homogenize whitespace in macros.
+ */
+#define bracket2(x) >>>  x  <<<
+bracket2(spaces)
+/* If this were working, this check would be on.
+ * CHECK-NOT: {{^}}>>>  spaces  <<<{{$}}
+ */
-- 
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