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[Bug rtl-optimization/41646] [4.3/4.4/4.5 Regression] Reload ICE due to combiner extending life time of a hard register
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Oct 2009 15:35:22 -0000
- Subject: [Bug rtl-optimization/41646] [4.3/4.4/4.5 Regression] Reload ICE due to combiner extending life time of a hard register
- References: <bug-41646-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from jakub at gcc dot gnu dot org 2009-10-09 15:35 -------
Created an attachment (id=18767)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18767&action=view)
gcc45-pr41646.patch
Patch I'm going to bootstrap/regtest.
cant_combine_insn_p already takes care of not combining in hard registers with
likely spilled classes in the (set (reg) (hardreg)) cases, so it is just when
expand doesn't honor this.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41646