Stage two of getting CFE top correct.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39734 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/c99-6_10_3_4_p6.c b/test/Preprocessor/c99-6_10_3_4_p6.c
new file mode 100644
index 0000000..ce7990a
--- /dev/null
+++ b/test/Preprocessor/c99-6_10_3_4_p6.c
@@ -0,0 +1,24 @@
+// Example from C99 6.10.3.4p6
+
+// RUN: clang -E %s | grep -F 'printf("x" "1" "= %d, x" "2" "= s" x1, x2);' &&
+// RUN: clang -E %s | grep 'fputs("strncmp(\\"abc\\\\0d\\" \\"abc\\", .\\\\4.) == 0" ": @\\n", s);' &&
+// RUN: clang -E %s | grep -F 'include "vers2.h"' &&
+// RUN: clang -E %s | grep -F '"hello";' &&
+// RUN: clang -E %s | grep -F '"hello" ", world"'
+
+#define str(s) # s
+#define xstr(s) str(s)
+#define debug(s, t) printf("x" # s "= %d, x" # t "= s" \
+ x ## s, x ## t)
+#define INCFILE(n) vers ## n
+#define glue(a, b) a ## b
+#define xglue(a, b) glue(a, b)
+#define HIGHLOW "hello"
+#define LOW LOW ", world"
+debug(1, 2);
+fputs(str(strncmp("abc\0d" "abc", '\4') // this goes away
+ == 0) str(: @\n), s);
+include xstr(INCFILE(2).h)
+glue(HIGH, LOW);
+xglue(HIGH, LOW)
+