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[Bug rtl-optimization/53176] [4.8 Regression] gcc.target/i386/movbe-2.c and gcc.dg/lower-subreg-1.c
- From: "hp at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 02 May 2012 22:27:32 +0000
- Subject: [Bug rtl-optimization/53176] [4.8 Regression] gcc.target/i386/movbe-2.c and gcc.dg/lower-subreg-1.c
- Auto-submitted: auto-generated
- References: <bug-53176-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53176
--- Comment #9 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-05-02 22:27:32 UTC ---
(In reply to comment #8)
> Actually, I think that's what rtlanal.c:rtx_cost should be changed to do, for
> the cases where the targetm.rtx_costs function returns false.
...and not just for non-tieable SUBREGs. (Why currently just non-tieable
SUBREGs? That doesn't seem generic.)
brgds, H-P