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[Bug middle-end/49801] df_live_verify_transfer_functions fails with to use of CC_REGNUM and checking enabled in rx backend
- From: "rth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 06 Oct 2011 21:59:22 +0000
- Subject: [Bug middle-end/49801] df_live_verify_transfer_functions fails with to use of CC_REGNUM and checking enabled in rx backend
- Auto-submitted: auto-generated
- References: <bug-49801-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49801
Richard Henderson <rth at gcc dot gnu.org> changed:
What |Removed |Added
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Attachment #25430|0 |1
is obsolete| |
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |rth at gcc dot gnu.org
|gnu.org |
--- Comment #7 from Richard Henderson <rth at gcc dot gnu.org> 2011-10-06 21:59:22 UTC ---
Created attachment 25435
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25435
workaround for live-register update
I think this patch proves I have no idea how the df interfaces work.
In particular, why the call to df_analyze is required *after* doing
the work. Seems like for a simple problem like liveness, this ought
to be kept up-to-date without extra help...