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Commit e7e09ad8 authored by DJ Delorie's avatar DJ Delorie Committed by DJ Delorie
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stormy16.c (xstormy16_extra_constraint_p): Add Z, which matches (const_int 0) for addhi3. 

* config/stormy16/stormy16.c (xstormy16_extra_constraint_p): Add Z,
which matches (const_int 0) for addhi3.
* config/stormy16/stormy16.md: Document known constraints.
(addhi3): Handle adding zero.

From-SVN: r67712
parent a398a822
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