[Bug tree-optimization/37916] [4.2/4.3/4.4 Regression] SSA names causing register pressure; unnecessarily many simultaneously "live" names.

[hp at gcc dot gnu dot org]

------- Comment #11 from hp at gcc dot gnu dot org  2008-10-27 15:22 -------
(In reply to comment #10)
> Is scheduling before reload enabled for your target?  If not can you try
> -fschedule-insns1?

No such option, I presume you mean -fschedule-insns.  But, as there's no
scheduler description defined for the architecture, all I get is of course:
warning: instruction scheduling not supported on this target machine
with no difference in the output with -O2 -march=v10 -mno-mul-bug-workaround
-fno-ivopts -fno-reorder-blocks -fno-gcse.

Besides, scheduling would move uses away from definitions, not closer to them.
:)  Also, if this is meant as a permanent solution, that pass seems a bit late.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37916