[Bug middle-end/41004] missed merge of basic blocks

[carrot at google dot com]

------- Comment #4 from carrot at google dot com  2009-08-19 21:55 -------
(In reply to comment #2)
> Why does the basic block reordering pass also not handle this?
> 

Basic block reordering is disabled with options -Os. 

The basic block reordering algorithm is for performance only, it usually
increases code size. So it won't be called when do optimization for size. But
for this specific case, the extra branch can be removed when I compile it with
-O2.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41004