This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
How early are COND_EXEC patterns created?
- To: gcc at gcc dot gnu dot org
- Subject: How early are COND_EXEC patterns created?
- From: John Wehle <john at feith dot com>
- Date: Tue, 2 May 2000 00:10:06 -0400 (EDT)
What's the earliest that COND_EXEC patterns are created?
I'm currently using note_stores in the value range propagation
code to determine when register values change, however COND_EXEC
adds the wrinkle that the SET (or CLOBBER) which is passed to
(*fun) by note_stores may not actually happen. If COND_EXEC
doesn't appear until after gcse then there's no problem, otherwise
I suppose I could hack note_stores so that COND_EXEC_TEST is
also passed to (*fun). BTW, can COND_EXEC appear inside a PARALLEL?
-- John
-------------------------------------------------------------------------
| Feith Systems | Voice: 1-215-646-8000 | Email: john@feith.com |
| John Wehle | Fax: 1-215-540-5495 | |
-------------------------------------------------------------------------