[Bug tree-optimization/45397] [4.5/4.6 Regression] Issues with integer narrowing conversions

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2010-08-24 13:41 -------
Created an attachment (id=21556)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21556&action=view)
minmax.patch

I've also noticed that the folder only recognizes the inner MAX_EXPR, but
doesn't recognize the outer MIN_EXPR.  Apparently (when convert_to_integer
doesn't harm it, i.e. the bar testcase instead of foo) phiopt1 later on figures
this out.  The attached (untested) patch handles that case early, but not sure
it is worth it.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45397