[Bug target/32593] Missed optimization of 'y = constant - x' operation

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2009-11-07 14:44 -------
Oh, there's no loop.  Then it's the not implemented strength-reduction on
scalar code that is the issue.  In theory strength-reduction can be
integrated into our global value-numbering / PRE code, but nobody has done
that.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32593