[Bug rtl-optimization/31849] [4.2/4.3 Regression] Code size regression caused by fix to PR 31360

rearnsha at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Mon May 7 12:50:00 GMT 2007



------- Comment #9 from rearnsha at gcc dot gnu dot org  2007-05-07 13:50 -------
(In reply to comment #8)
>
> actually, this should save one addition (only the index is incremented, the
> additions of index to bases are done in the addressing mode).  

When a machine has a post-increment instruction (as ARM does) the addition is
free.  So really there should be no additions in this code (though the previous
version had one, to the current two).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31849



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