[Bug target/17731] sub-optimal code generated for left shift

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-29 18:14 -------
Then the easy way to do that would add a pattern in the machine description for
(ashift:SI () (and:SI () (const_int 31 [0x1f])))
and let combine do its job but note we are masking 4 bits and not 5 out so we still will get different 
answers than what we are expecting.

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          Component|java                        |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17731