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SF Patch #1013667: Cleanup Peepholer Output

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* Make a pass to eliminate NOPs.  Produce code that is more readable,
  more compact, and a tiny bit faster.  Makes the peepholer more flexible
  in the scope of allowable transformations.

* With Guido's okay, bumped up the magic number so that this patch gets
  widely exercised before the alpha goes out.
This commit is contained in:
Raymond Hettinger 2004-08-23 23:37:48 +00:00
parent 08158a0c65
commit fd2d1f7870
4 changed files with 206 additions and 38 deletions
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3
Python/import.c
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@ -48,8 +48,9 @@ extern time_t PyOS_GetLastModificationTime(char *, FILE *);
Python 2.3a0: 62021
Python 2.3a0: 62011 (!)
Python 2.4a0: 62041
Python 2.4a3: 62051
*/
#define MAGIC (62041 | ((long)'\r'<<16) | ((long)'\n'<<24))
#define MAGIC (62051 | ((long)'\r'<<16) | ((long)'\n'<<24))
/* Magic word as global; note that _PyImport_Init() can change the
value of this global to accommodate for alterations of how the