test/Preprocessor/dump-macros-spacing.c - clang - Git at Google

 // RUN: clang-cc -E -dD < %s | grep stdin | grep -v define
 #define A A
 /* 1
  * 2
  * 3
  * 4
  * 5
  * 6
  * 7
  * 8
  */
 #define B B
	// RUN: clang-cc -E -dD < %s \| grep stdin \| grep -v define
	#define A A
	/* 1
	* 2
	* 3
	* 4
	* 5
	* 6
	* 7
	* 8
	*/
	#define B B